# Wifiiot ## **Overview** Provides dedicated device operation interfaces on the Wi-Fi module, including ADC, AT, flash, GPIO, I2C, I2S, partition, PWM, SDIO, UART, and watchdog. **Since:** 1.0 **Version:** 1.0 ## **Summary** ## Files

File Name	Description
wifiiot_adc.h	Declares the ADC interface functions for you to read data.
wifiiot_at.h	Declares the AT interface functions.
wifiiot_errno.h	Defines error codes used by the Wi-Fi module.
wifiiot_flash.h	Declares the flash interface functions.
wifiiot_flash_ex.h	Declares the extended flash interface functions for obtaining flash information.
wifiiot_gpio.h	Declares the GPIO interface functions.
wifiiot_gpio_ex.h	Declares the extended GPIO interface functions.
wifiiot_i2c.h	Declares the I2C interface functions.
wifiiot_i2c_ex.h	Declares the extended I2C interface functions.
wifiiot_i2s.h	Declares the I2S interface functions.
wifiiot_kal.h	Declares the KAL interface functions.
wifiiot_partition.h	Declares the partition interface functions.
wifiiot_pwm.h	Declares the PWM interface functions.
wifiiot_sdio.h	Declares the SDIO interface functions.
wifiiot_spi.h	Declares the SPI interface functions.
wifiiot_uart.h	Declares the UART interface functions.
wifiiot_uart_ex.h	Declares the extended UART interface functions.
wifiiot_watchdog.h	Declares the watchdog interface functions.

## Data Structures

Data Structure Name	Description
AtCmdTbl	Defines the AT command registration structure.
WifiIotI2cData	Defines I2C data transmission attributes.
WifiIotI2cFunc	Defines I2C callbacks.
WifiIotI2sAttribute	Defines I2S attributes.
WifiIotFlashPartitionInfo	Describes an entry in a flash partition table.
WifiIotFlashPartitionTable	Describes a flash partition table.
WifiIotSdioExtendFunc	Provides extended SDIO attributes.
WifiIotSdioAdmatable	Defines attributes of an SDIO ADMA table.
WifiIotSdioIntcallback	SDIO interrupt callback structure.
WifiIotSpiCfgBasicInfo	Defines data communication parameters.
WifiIotSpiCfgInitParam	Specifies whether a device is a master or slave device.
WifiIotUartAttribute	Defines the basic attributes of a UART device.
WifiIotUartExtraAttr	Defines the extended attributes of a UART device.

## Macros

Macro Name and Value	Description
WIFI_IOT_SUCCESS 0	Defines a module-level return value to indicate a successful operation.
WIFI_IOT_FAILURE (-1)	Defines a module-level return value to indicate an operation failure.
WIFI_IOT_ERR_UART_INVALID_PARAMETER 0x80001000	Defines a UART error code to indicate an invalid parameter.
WIFI_IOT_ERR_UART_INVALID_SUSPEND 0x80001001	Defines a UART error code to indicate an invalid pause operation.
WIFI_IOT_ERR_UART_INVALID_PARITY 0x80001002	Defines a UART error code to indicate an invalid parity check.
WIFI_IOT_ERR_UART_INVALID_DATA_BITS 0x80001003	Defines a UART error code to indicate an invalid data bit.
WIFI_IOT_ERR_UART_INVALID_STOP_BITS 0x80001004	Defines a UART error code to indicate an invalid stop bit.
WIFI_IOT_ERR_UART_INVALID_BAUD 0x80001005	Defines a UART error code to indicate an invalid baud rate.
WIFI_IOT_ERR_UART_INVALID_COM_PORT 0x80001006	Defines a UART error code to indicate an invalid port number.
WIFI_IOT_ERR_UART_NOT_SUPPORT_DMA 0x80001007	Defines a UART error code to indicate a non-support for DMA.
WIFI_IOT_ERR_UART_NOT_BLOCK_MODE 0x80001008	Defines a UART error code to indicate the non-block mode.
WIFI_IOT_ERR_GPIO_INVALID_PARAMETER 0x80001040	Defines a GPIO error code to indicate an invalid parameter.
WIFI_IOT_ERR_GPIO_REPEAT_INIT 0x80001041	Defines a GPIO error code to indicate repeated initialization.
WIFI_IOT_ERR_GPIO_NOT_INIT 0x80001042	Defines a GPIO error code to indicate non-initialization.
WIFI_IOT_ERR_GPIO_NOT_SUPPORT 0x80001043	Defines a GPIO error code to indicate a non-support.
WIFI_IOT_ERR_FLASH_NOT_INIT 0x800010C0	Defines a flash error code to indicate non-initialization.
WIFI_IOT_ERR_FLASH_INVALID_PARAM 0x800010C1	Defines a flash error code to indicate an invalid parameter.
WIFI_IOT_ERR_FLASH_INVALID_PARAM_BEYOND_ADDR 0x800010C2	Defines a flash error code to indicate that the address is out of range.
WIFI_IOT_ERR_FLASH_INVALID_PARAM_SIZE_ZERO 0x800010C3	Defines a flash error code to indicate that the parameter size is 0
WIFI_IOT_ERR_FLASH_INVALID_PARAM_ERASE_NOT_ALIGN 0x800010C4	Defines a flash error code to indicate that the erase size is not aligned.
WIFI_IOT_ERR_FLASH_INVALID_PARAM_IOCTRL_DATA_NULL 0x800010C5	Defines a flash error code to indicate that the data of the I/O controller is empty.
WIFI_IOT_ERR_FLASH_INVALID_PARAM_DATA_NULL 0x800010C6	Defines a flash error code to indicate empty data.
WIFI_IOT_ERR_FLASH_INVALID_PARAM_PAD1 0x800010C7	Defines a flash error code to indicate that pad1 is incorrect.
WIFI_IOT_ERR_FLASH_INVALID_PARAM_PAD2 0x800010C8	Defines a flash error code to indicate that pad2 is incorrect.
WIFI_IOT_ERR_FLASH_INVALID_PARAM_PAD3 0x800010C9	Defines a flash error code to indicate that pad3 is incorrect.
WIFI_IOT_ERR_FLASH_INVALID_PARAM_PAD4 0x800010CA	Defines a flash error code to indicate that pad4 is incorrect.
WIFI_IOT_ERR_FLASH_TIME_OUT_WAIT_READY 0x800010CB	Defines a flash error code to indicate a timeout on waiting for ready.
WIFI_IOT_ERR_FLASH_QUAD_MODE_READ_REG1 0x800010CC	Defines a flash error code to indicate that an error occurs when reading register 1.
WIFI_IOT_ERR_FLASH_QUAD_MODE_READ_REG2 0x800010CD	Defines a flash error code to indicate that an error occurs when reading register 2.
WIFI_IOT_ERR_FLASH_QUAD_MODE_COMPARE_REG 0x800010CE	Defines a flash error code to indicate that an error occurs when comparing registers.
WIFI_IOT_ERR_FLASH_NO_MATCH_FLASH 0x800010CF	Defines a flash error code to indicate a flash mismatch.
WIFI_IOT_ERR_FLASH_WRITE_ENABLE 0x800010D0	Defines a flash error code to indicate a failure in enabling write.
WIFI_IOT_ERR_FLASH_NO_MATCH_ERASE_SIZE 0x800010D1	Defines a flash error code to indicate a mismatch in the size of data to erase.
WIFI_IOT_ERR_FLASH_MAX_SPI_OP 0x800010D2	Defines a flash error code to indicate the maximum value of the SPI operation.
WIFI_IOT_ERR_FLASH_NOT_SUPPORT_IOCTRL_ID 0x800010D3	Defines a flash error code to indicate an unsupported IO controller ID..
WIFI_IOT_ERR_FLASH_INVALID_CHIP_ID 0x800010D4	Defines a flash error code to indicate an invalid chip ID.
WIFI_IOT_ERR_FLASH_RE_INIT 0x800010D5	Defines a flash error code to indicate repeated initialization.
WIFI_IOT_ERR_FLASH_WRITE_NOT_SUPPORT_ERASE 0x800010D6	Defines a flash error code to indicate a non-support for data erasure.
WIFI_IOT_ERR_FLASH_WRITE_COMPARE_WRONG 0x800010D7	Defines a flash error code to indicate that an error occurs when comparing the data written.
WIFI_IOT_ERR_FLASH_WAIT_CFG_START_TIME_OUT 0x800010D8	Defines a flash error code to indicate a timeout on waiting for a configuration to start.
WIFI_IOT_ERR_FLASH_PATITION_INIT_FAIL 0x800010D9	Defines a flash error code to indicate a partition initialization failure.
WIFI_IOT_ERR_FLASH_INITILIZATION 0x800010DA	Defines a flash error code to indicate initialization.
WIFI_IOT_ERR_FLASH_ERASE_NOT_4K_ALIGN 0x800010DB	Defines a flash error code to indicate that the size of data to erase is not a multiple of 4K bytes.
WIFI_IOT_ERR_FLASH_PROTECT_NOT_SUPPORT 0x800010DC	Defines a flash error code to indicate a non-support.
WIFI_IOT_ERR_FLASH_PROTECT_NOT_INIT 0x800010DD	Defines a flash error code to indicate non-initialization.
WIFI_IOT_ERR_FLASH_PROTECT_RE_INIT 0x800010DE	Defines a flash error code to indicate repeated initialization.
WIFI_IOT_ERR_FLASH_PROTECT_NOT_FIND_CHIP 0x800010DF	Defines a flash error code to indicate that no chip is found.
WIFI_IOT_ERR_FLASH_CRYPTO_INVALID_PARAM 0x800010F0	Defines a flash error code to indicate an invalid parameter.
WIFI_IOT_ERR_FLASH_CRYPTO_BEYOND_ADDR_SIZE 0x800010F1	Defines a flash error code to indicate that the address is out of range.
WIFI_IOT_ERR_FLASH_CRYPTO_MALLOC_FAIL 0x800001F2	Defines a flash error code to indicate a failure in applying for memory.
WIFI_IOT_ERR_FLASH_CRYPTO_DATA_ENCRYPT_ERR 0x800001F3	Defines a flash error code to indicate an encryption error.
WIFI_IOT_ERR_FLASH_CRYPTO_DATA_DECRYPT_ERR 0x800001F4	Defines a flash error code to indicate a decryption error.
WIFI_IOT_ERR_FLASH_CRYPTO_KEY_EMPTY_ERR 0x800001F5	Defines a flash error code to indicate an empty key value.
WIFI_IOT_ERR_FLASH_CRYPTO_MEMCPY_FAIL 0x800001F6	Defines a flash error code to indicate a copy failure.
WIFI_IOT_ERR_FLASH_CRYPTO_NOT_SUPPORT 0x800001F7	Defines a flash error code to indicate a non-support for encryption.
WIFI_IOT_ERR_FLASH_CRYPTO_PREPARE_ERR 0x800001F8	Defines a flash error code to indicate an incorrect parameter during encryption.
WIFI_IOT_ERR_FLASH_CRYPTO_KEY_INVALID_ERR 0x800001F9	Defines a flash error code to indicate an invalid key.
WIFI_IOT_ERR_FLASH_CRYPTO_KEY_SAVE_ERR 0x800001FA	Defines a flash error code to indicate a failure in saving the key.
WIFI_IOT_ERR_FLASH_CRYPTO_KERNEL_ADDR_ERR 0x800001FB	Defines a flash error code to indicate an incorrect kernel address..
WIFI_IOT_ERR_I2C_NOT_INIT 0x80001180	Defines an I2C error code to indicate a non-support.
WIFI_IOT_ERR_I2C_INVALID_PARAMETER 0x80001181	Defines an I2C error code to indicate an invalid parameter.
WIFI_IOT_ERR_I2C_TIMEOUT_START 0x80001182	Defines an I2C error code to indicate a start timeout.
WIFI_IOT_ERR_I2C_TIMEOUT_WAIT 0x80001183	Defines an I2C error code to indicate a wait timeout.
WIFI_IOT_ERR_I2C_TIMEOUT_STOP 0x80001184	Defines an I2C error code to indicate a stop timeout.
WIFI_IOT_ERR_I2C_TIMEOUT_RCV_BYTE 0x80001185	Defines an I2C error code to indicate a receive timeout.
WIFI_IOT_ERR_I2C_TIMEOUT_RCV_BYTE_PROC 0x80001186	Defines an I2C error code to indicate a processing timeout.
WIFI_IOT_ERR_I2C_WAIT_SEM_FAIL 0x80001187	Defines an I2C error code to indicate a waiting failure.
WIFI_IOT_ERR_I2C_START_ACK_ERR 0x80001188	Defines an I2C error code to indicate a responding failure.
WIFI_IOT_ERR_I2C_WAIT_ACK_ERR 0x80001189	Defines an I2C error code to indicate a failure in waiting for a response.
WIFI_IOT_ERR_SPI_NOT_INIT 0x800011C0	Defines an SPI error code to indicate non-initialization.
WIFI_IOT_ERR_SPI_REINIT 0x800011C1	Defines an SPI error code to indicate repeated initialization.
WIFI_IOT_ERR_SPI_PARAMETER_WRONG 0x800011C2	Defines an SPI error code to indicate a parameter error.
WIFI_IOT_ERR_SPI_BUSY 0x800011C3	Defines an SPI error code to indicate the busy state.
WIFI_IOT_ERR_SPI_WRITE_TIMEOUT 0x800011C4	Defines an SPI error code to indicate a write timeout.
WIFI_IOT_ERR_SPI_READ_TIMEOUT 0x800011C5	Defines an SPI error code to indicate a read timeout.
WIFI_IOT_ERR_SPI_NOT_SUPPORT_DMA 0x800011C6	Defines an SPI error code to indicate a non-support for DMA.
WIFI_IOT_ERR_SDIO_INVALID_PARAMETER 0x80001280	Defines an SDIO error code to indicate an invalid parameter.
WIFI_IOT_ERR_ADC_PARAMETER_WRONG 0x80001300	Defines an ADC error code to indicate a parameter error.
WIFI_IOT_ERR_ADC_INVALID_CHANNEL_ID 0x80001301	Defines an ADC error code to indicate an invalid channel.
WIFI_IOT_ERR_ADC_TIMEOUT 0x80001302	Defines an ADC error code to indicate a timeout.
WIFI_IOT_ERR_ADC_NOT_INIT 0x80001303	Defines an ADC error code to indicate non-initialization.
WIFI_IOT_ERR_PWM_NO_INIT 0x80001340	Defines a PWM error code to indicate non-initialization.
WIFI_IOT_ERR_PWM_INITILIZATION_ALREADY 0x80001341	Defines a PWM error code to indicate an initialization error.
WIFI_IOT_ERR_PWM_INVALID_PARAMETER 0x80001342	Defines a PWM error code to indicate an invalid parameter.
WIFI_IOT_ERR_DMA_INVALID_PARA 0x80001380	Defines a DMA error code to indicate an invalid parameter.
WIFI_IOT_ERR_DMA_NOT_INIT 0x80001381	Defines a DMA error code to indicate non-initialization.
WIFI_IOT_ERR_DMA_BUSY 0x80001382	Defines a DMA error code to indicate the busy state.
WIFI_IOT_ERR_DMA_TRANSFER_FAIL 0x80001383	Defines a DMA error code to indicate a transmission failure.
WIFI_IOT_ERR_DMA_TRANSFER_TIMEOUT 0x80001384	Defines a DMA error code to indicate a transmission timeout.
WIFI_IOT_ERR_DMA_GET_NOTE_FAIL 0x80001385	Defines a DMA error code to indicate a retrieval failure.
WIFI_IOT_ERR_DMA_LLI_NOT_CREATE 0x80001386	Defines a DMA error code to indicate that the LLI is not created.
WIFI_IOT_ERR_DMA_CH_IRQ_ENABLE_FAIL 0x80001387	Defines a DMA error code to indicate a failure in enabling channel interrupt.
WIFI_IOT_ERR_I2S_INVALID_PARAMETER 0x80001400	Defines an I2S error code to indicate an invalid parameter.
WIFI_IOT_ERR_I2S_WRITE_TIMEOUT 0x80001401	Defines an I2S error code to indicate a write timeout.
WIFI_IOT_ERR_AT_NAME_OR_FUNC_REPEAT_REGISTERED 0x80003280	Defines an AT error code to indicate repeated function registration.
WIFI_IOT_ERR_AT_INVALID_PARAMETER 0x80003281	Defines an AT error code to indicate an invalid parameter.
WIFI_IOT_FLASH_PARTITON_MAX 12	Indicates the maximum number of partition tables.
WIFI_IOT_SDIO_EXTENDREG_COUNT 64	Indicates the number of extended registers on an SDIO device.

## Typedefs

Typedef Name	Description
GpioIsrCallbackFunc) (char *arg)	typedef void(* Indicates the GPIO interrupt callback.
I2CResetFunc) (void)	typedef void(* Indicates the callback invoked when a device exception occurs.
I2cPrepareFunc) (void)	typedef void(* Indicates the callback invoked for device preparation.
I2cRestoreFunc) (void)	typedef void(* Indicates the callback invoked for device recovery.
TickIdleKalCallback) (void)	typedef void(* Indicates the idle task and CPU tick callbacks.
NotifyHostMessageEvent ) (void)	typedef void(* Indicates the callback invoked upon a message event on the host.
SpiIsrFunc ) (void)	typedef void(* Indicates the SPI callback, which is used in SpiRegisterUsrFunc.

## Enumerations

Enumeration Name	Description
WifiIotAdcChannelIndex { WIFI_IOT_ADC_CHANNEL_0, WIFI_IOT_ADC_CHANNEL_1, WIFI_IOT_ADC_CHANNEL_2, WIFI_IOT_ADC_CHANNEL_3, WIFI_IOT_ADC_CHANNEL_4, WIFI_IOT_ADC_CHANNEL_5, WIFI_IOT_ADC_CHANNEL_6, WIFI_IOT_ADC_CHANNEL_7, WIFI_IOT_ADC_CHANNEL_BUTT }	Enumerates ADC channel indexes.
WifiIotAdcCurBais { WIFI_IOT_ADC_CUR_BAIS_DEFAULT, WIFI_IOT_ADC_CUR_BAIS_AUTO, WIFI_IOT_ADC_CUR_BAIS_1P8V, WIFI_IOT_ADC_CUR_BAIS_3P3V, WIFI_IOT_ADC_CUR_BAIS_BUTT }	Enumerates analog power control modes.
WifiIotAdcEquModelSel { WIFI_IOT_ADC_EQU_MODEL_1, WIFI_IOT_ADC_EQU_MODEL_2, WIFI_IOT_ADC_EQU_MODEL_4, WIFI_IOT_ADC_EQU_MODEL_8, WIFI_IOT_ADC_EQU_MODEL_BUTT }	Enumerates equation models.
WifiIotGpioIdx { WIFI_IOT_GPIO_IDX_0, WIFI_IOT_GPIO_IDX_1, WIFI_IOT_GPIO_IDX_2, WIFI_IOT_GPIO_IDX_3, WIFI_IOT_GPIO_IDX_4, WIFI_IOT_GPIO_IDX_5, WIFI_IOT_GPIO_IDX_6, WIFI_IOT_GPIO_IDX_7, WIFI_IOT_GPIO_IDX_8, WIFI_IOT_GPIO_IDX_9, WIFI_IOT_GPIO_IDX_10, WIFI_IOT_GPIO_IDX_11, WIFI_IOT_GPIO_IDX_12, WIFI_IOT_GPIO_IDX_13, WIFI_IOT_GPIO_IDX_14, WIFI_IOT_GPIO_IDX_MAX }	Enumerates GPIO pin IDs.
WifiIotGpioValue { WIFI_IOT_GPIO_VALUE0 = 0, WIFI_IOT_GPIO_VALUE1 }	Enumerates GPIO level values.
WifiIotGpioDir { WIFI_IOT_GPIO_DIR_IN = 0, WIFI_IOT_GPIO_DIR_OUT }	Enumerates GPIO directions.
WifiIotGpioIntType { WIFI_IOT_INT_TYPE_LEVEL = 0, WIFI_IOT_INT_TYPE_EDGE }	Enumerates GPIO interrupt trigger modes.
WifiIotGpioIntPolarity { WIFI_IOT_GPIO_EDGE_FALL_LEVEL_LOW = 0, WIFI_IOT_GPIO_EDGE_RISE_LEVEL_HIGH }	Enumerates I/O interrupt polarities.
WifiIotIoName { WIFI_IOT_IO_NAME_GPIO_0, WIFI_IOT_IO_NAME_GPIO_1, WIFI_IOT_IO_NAME_GPIO_2, WIFI_IOT_IO_NAME_GPIO_3, WIFI_IOT_IO_NAME_GPIO_4, WIFI_IOT_IO_NAME_GPIO_5, WIFI_IOT_IO_NAME_GPIO_6, WIFI_IOT_IO_NAME_GPIO_7, WIFI_IOT_IO_NAME_GPIO_8, WIFI_IOT_IO_NAME_GPIO_9, WIFI_IOT_IO_NAME_GPIO_10, WIFI_IOT_IO_NAME_GPIO_11, WIFI_IOT_IO_NAME_GPIO_12, WIFI_IOT_IO_NAME_GPIO_13, WIFI_IOT_IO_NAME_GPIO_14, WIFI_IOT_IO_NAME_MAX }	Enumerates GPIO hardware pin IDs.
WifiIotIoFuncGpio0 { WIFI_IOT_IO_FUNC_GPIO_0_GPIO, WIFI_IOT_IO_FUNC_GPIO_0_UART1_TXD = 2, WIFI_IOT_IO_FUNC_GPIO_0_SPI1_CK, WIFI_IOT_IO_FUNC_GPIO_0_JTAG_TDO, WIFI_IOT_IO_FUNC_GPIO_0_PWM3_OUT, WIFI_IOT_IO_FUNC_GPIO_0_I2C1_SDA }	Enumerates the functions of GPIO hardware pin 0.
WifiiIotIoFuncGpio1 { WIFI_IOT_IO_FUNC_GPIO_1_GPIO }	Enumerates the functions of GPIO hardware pin 1.
WifiIotIoFuncGpio2 { WIFI_IOT_IO_FUNC_GPIO_2_GPIO, WIFI_IOT_IO_FUNC_GPIO_2_UART1_RTS_N = 2, WIFI_IOT_IO_FUNC_GPIO_2_SPI1_TXD, WIFI_IOT_IO_FUNC_GPIO_2_JTAG_TRSTN, WIFI_IOT_IO_FUNC_GPIO_2_PWM2_OUT, WIFI_IOT_IO_FUNC_GPIO_2_SSI_CLK = 7 }	Enumerates the functions of GPIO hardware pin 2.
WifiIotIoFuncGpio3 { WIFI_IOT_IO_FUNC_GPIO_3_GPIO, WIFI_IOT_IO_FUNC_GPIO_3_UART0_TXD, WIFI_IOT_IO_FUNC_GPIO_3_UART1_CTS_N, WIFI_IOT_IO_FUNC_GPIO_3_SPI1_CSN, WIFI_IOT_IO_FUNC_GPIO_3_JTAG_TDI, WIFI_IOT_IO_FUNC_GPIO_3_PWM5_OUT, WIFI_IOT_IO_FUNC_GPIO_3_I2C1_SDA, WIFI_IOT_IO_FUNC_GPIO_3_SSI_DATA }	Enumerates the functions of GPIO hardware pin 3.
WifiIotIoFuncGpio4 { WIFI_IOT_IO_FUNC_GPIO_4_GPIO, WIFI_IOT_IO_FUNC_GPIO_4_UART0_RXD = 2, WIFI_IOT_IO_FUNC_GPIO_4_JTAG_TMS = 4, WIFI_IOT_IO_FUNC_GPIO_4_PWM1_OUT, WIFI_IOT_IO_FUNC_GPIO_4_I2C1_SCL }	Enumerates the functions of GPIO hardware pin 4.
WifiIotIoFuncGpio5 { WIFI_IOT_IO_FUNC_GPIO_5_GPIO, WIFI_IOT_IO_FUNC_GPIO_5_UART1_RXD = 2, WIFI_IOT_IO_FUNC_GPIO_5_SPI0_CSN, WIFI_IOT_IO_FUNC_GPIO_5_PWM2_OUT = 5, WIFI_IOT_IO_FUNC_GPIO_5_I2S0_MCLK, WIFI_IOT_IO_FUNC_GPIO_5_BT_STATUS }	Enumerates the functions of GPIO hardware pin 5.
WifiIotIoFuncGpio6 { WIFI_IOT_IO_FUNC_GPIO_6_GPIO, WIFI_IOT_IO_FUNC_GPIO_6_UART1_TXD = 2, WIFI_IOT_IO_FUNC_GPIO_6_SPI0_CK, WIFI_IOT_IO_FUNC_GPIO_6_PWM3_OUT = 5, WIFI_IOT_IO_FUNC_GPIO_6_I2S0_TX, WIFI_IOT_IO_FUNC_GPIO_6_COEX_SWITCH }	Enumerates the functions of GPIO hardware pin 6.
WifiIotIoFuncGpio7 { WIFI_IOT_IO_FUNC_GPIO_7_GPIO, WIFI_IOT_IO_FUNC_GPIO_7_UART1_CTS_N = 2, WIFI_IOT_IO_FUNC_GPIO_7_SPI0_RXD, WIFI_IOT_IO_FUNC_GPIO_7_PWM0_OUT = 5, WIFI_IOT_IO_FUNC_GPIO_7_I2S0_BCLK, WIFI_IOT_IO_FUNC_GPIO_7_BT_ACTIVE }	Enumerates the functions of GPIO hardware pin 7.
WifiIotIoFuncGpio8 { WIFI_IOT_IO_FUNC_GPIO_8_GPIO, WIFI_IOT_IO_FUNC_GPIO_8_UART1_RTS_N = 2, WIFI_IOT_IO_FUNC_GPIO_8_SPI0_TXD, WIFI_IOT_IO_FUNC_GPIO_8_PWM1_OUT = 5, WIFI_IOT_IO_FUNC_GPIO_8_I2S0_WS, WIFI_IOT_IO_FUNC_GPIO_8_WLAN_ACTIVE }	Enumerates the functions of GPIO hardware pin 8.
WifiIotIoFuncGpio9 { WIFI_IOT_IO_FUNC_GPIO_9_GPIO, WIFI_IOT_IO_FUNC_GPIO_9_I2C0_SCL, WIFI_IOT_IO_FUNC_GPIO_9_UART2_RTS_N, WIFI_IOT_IO_FUNC_GPIO_9_SDIO_D2, WIFI_IOT_IO_FUNC_GPIO_9_SPI0_TXD, WIFI_IOT_IO_FUNC_GPIO_9_PWM0_OUT, WIFI_IOT_IO_FUNC_GPIO_9_I2S0_MCLK = 7 }	Enumerates the functions of GPIO hardware pin 9.
WifiIotIoFuncGpio10 { WIFI_IOT_IO_FUNC_GPIO_10_GPIO, WIFI_IOT_IO_FUNC_GPIO_10_I2C0_SDA, WIFI_IOT_IO_FUNC_GPIO_10_UART2_CTS_N, WIFI_IOT_IO_FUNC_GPIO_10_SDIO_D3, WIFI_IOT_IO_FUNC_GPIO_10_SPI0_CK, WIFI_IOT_IO_FUNC_GPIO_10_PWM1_OUT, WIFI_IOT_IO_FUNC_GPIO_10_I2S0_TX = 7 }	Enumerates the functions of GPIO hardware pin 10.
WifiIotIoFuncGpio11 { WIFI_IOT_IO_FUNC_GPIO_11_GPIO, WIFI_IOT_IO_FUNC_GPIO_11_UART2_TXD = 2, WIFI_IOT_IO_FUNC_GPIO_11_SDIO_CMD, WIFI_IOT_IO_FUNC_GPIO_11_SPI0_RXD, WIFI_IOT_IO_FUNC_GPIO_11_PWM2_OUT, WIFI_IOT_IO_FUNC_GPIO_11_RF_TX_EN_EXT, WIFI_IOT_IO_FUNC_GPIO_11_I2S0_RX }	Enumerates the functions of GPIO hardware pin 11.
WifiIotIoFuncGpio12 { WIFI_IOT_IO_FUNC_GPIO_12_GPIO, WIFI_IOT_IO_FUNC_GPIO_12_UART2_RXD = 2, WIFI_IOT_IO_FUNC_GPIO_12_SDIO_CLK, WIFI_IOT_IO_FUNC_GPIO_12_SPI0_CSN, WIFI_IOT_IO_FUNC_GPIO_12_PWM3_OUT, WIFI_IOT_IO_FUNC_GPIO_12_RF_RX_EN_EXT, WIFI_IOT_IO_FUNC_GPIO_12_I2S0_BCLK }	Enumerates the functions of GPIO hardware pin 12.
WifiIotIoFuncGpio13 { WIFI_IOT_IO_FUNC_GPIO_13_SSI_DATA, WIFI_IOT_IO_FUNC_GPIO_13_UART0_TXD, WIFI_IOT_IO_FUNC_GPIO_13_UART2_RTS_N, WIFI_IOT_IO_FUNC_GPIO_13_SDIO_D0, WIFI_IOT_IO_FUNC_GPIO_13_GPIO, WIFI_IOT_IO_FUNC_GPIO_13_PWM4_OUT, WIFI_IOT_IO_FUNC_GPIO_13_I2C0_SDA, WIFI_IOT_IO_FUNC_GPIO_13_I2S0_WS }	Enumerates the functions of GPIO hardware pin 13.
WifiIotIoFuncGpio14 { WIFI_IOT_IO_FUNC_GPIO_14_SSI_CLK, WIFI_IOT_IO_FUNC_GPIO_14_UART0_RXD, WIFI_IOT_IO_FUNC_GPIO_14_UART2_CTS_N, WIFI_IOT_IO_FUNC_GPIO_14_SDIO_D1, WIFI_IOT_IO_FUNC_GPIO_14_GPIO, WIFI_IOT_IO_FUNC_GPIO_14_PWM5_OUT, WIFI_IOT_IO_FUNC_GPIO_14_I2C0_SCL }	Enumerates the functions of GPIO hardware pin 14.
WifiIotIoDriverStrength { WIFI_IOT_IO_DRIVER_STRENGTH_0 = 0, WIFI_IOT_IO_DRIVER_STRENGTH_1, WIFI_IOT_IO_DRIVER_STRENGTH_2, WIFI_IOT_IO_DRIVER_STRENGTH_3, WIFI_IOT_IO_DRIVER_STRENGTH_4, WIFI_IOT_IO_DRIVER_STRENGTH_5, WIFI_IOT_IO_DRIVER_STRENGTH_6, WIFI_IOT_IO_DRIVER_STRENGTH_7, WIFI_IOT_IO_DRIVER_STRENGTH_MAX }	Enumerates I/O driver strength levels.
WifiIotIoPull { WIFI_IOT_IO_PULL_NONE, WIFI_IOT_IO_PULL_UP, WIFI_IOT_IO_PULL_DOWN, WIFI_IOT_IO_PULL_MAX }	Enumerates GPIO pull-up or pull-down settings.
WifiIotI2cIdx { WIFI_IOT_I2C_IDX_0, WIFI_IOT_I2C_IDX_1 }	Enumerates I2C hardware indexes.
WifiIotI2sSampleRate { WIFI_IOT_I2S_SAMPLE_RATE_8K = 8, WIFI_IOT_I2S_SAMPLE_RATE_16K = 16, WIFI_IOT_I2S_SAMPLE_RATE_32K = 32, WIFI_IOT_I2S_SAMPLE_RATE_48K = 48 }	Enumerates I2S sampling rates.
WifiIotI2sResolution { WIFI_IOT_I2S_RESOLUTION_16BIT = 16, WIFI_IOT_I2S_RESOLUTION_24BIT = 24 }	Enumerates I2S resolution.
WifiIotFlashPartitionTableId { WIFI_IOT_FLASH_PARTITON_BOOT = 0, WIFI_IOT_FLASH_PARTITON_FACTORY_NV, WIFI_IOT_FLASH_PARTITON_NORMAL_NV, WIFI_IOT_FLASH_PARTITON_NORMAL_NV_BACKUP, WIFI_IOT_FLASH_PARTITON_KERNEL_A, WIFI_IOT_FLASH_PARTITON_KERNEL_B, WIFI_IOT_FLASH_PARTITON_HILINK, WIFI_IOT_FLASH_PARTITON_FILE_SYSTEM, WIFI_IOT_FLASH_PARTITON_USR_RESERVE, WIFI_IOT_FLASH_PARTITON_HILINK_PKI, WIFI_IOT_FLASH_PARTITON_CRASH_INFO, WIFI_IOT_FLASH_PARTITON_BOOT_BACK }	Indicates the partition table ID.
WifiIotPwmClkSource { WIFI_IOT_PWM_CLK_160M, WIFI_IOT_PWM_CLK_XTAL, WIFI_IOT_PWM_CLK_MAX }	Enumerates PWM clock sources.
WifiIotPwmPort { WIFI_IOT_PWM_PORT_PWM0 = 0, WIFI_IOT_PWM_PORT_PWM1 = 1, WIFI_IOT_PWM_PORT_PWM2 = 2, WIFI_IOT_PWM_PORT_PWM3 = 3, WIFI_IOT_PWM_PORT_PWM4 = 4, WIFI_IOT_PWM_PORT_PWM5 = 5, WIFI_IOT_PWM_PORT_MAX }	Enumerates PWM ports.
WifiIotSpiIdx { WIFI_IOT_SPI_ID_0 = 0, WIFI_IOT_SPI_ID_1 }	Enumerates SPI channel IDs.
WifiIotSpiCfgClockCpol { WIFI_IOT_SPI_CFG_CLOCK_CPOL_0, WIFI_IOT_SPI_CFG_CLOCK_CPOL_1 }	Enumerates communication polarities.
WifiIotSpiCfgClockCpha { WIFI_IOT_SPI_CFG_CLOCK_CPHA_0, WIFI_IOT_SPI_CFG_CLOCK_CPHA_1 }	Enumerates communication phases.
WifiIotSpiCfgFramMode { WIFI_IOT_SPI_CFG_FRAM_MODE_MOTOROLA, WIFI_IOT_SPI_CFG_FRAM_MODE_TI, WIFI_IOT_SPI_CFG_FRAM_MODE_MICROWIRE }	Enumerates communication protocols.
WifiIotSpiCfgDataWidth { WIFI_IOT_SPI_CFG_DATA_WIDTH_E_4BIT = 0x3, WIFI_IOT_SPI_CFG_DATA_WIDTH_E_5BIT, WIFI_IOT_SPI_CFG_DATA_WIDTH_E_6BIT, WIFI_IOT_SPI_CFG_DATA_WIDTH_E_7BIT, WIFI_IOT_SPI_CFG_DATA_WIDTH_E_8BIT, WIFI_IOT_SPI_CFG_DATA_WIDTH_E_9BIT, WIFI_IOT_SPI_CFG_DATA_WIDTH_E_10BIT, WIFI_IOT_SPI_CFG_DATA_WIDTH_E_11BIT, WIFI_IOT_SPI_CFG_DATA_WIDTH_E_12BIT, WIFI_IOT_SPI_CFG_DATA_WIDTH_E_13BIT, WIFI_IOT_SPI_CFG_DATA_WIDTH_E_14BIT, WIFI_IOT_SPI_CFG_DATA_WIDTH_E_15BIT, WIFI_IOT_SPI_CFG_DATA_WIDTH_E_16BIT }	Enumerates the communication data width, that is, the number of valid bits in each frame.
WifiIotSpiCfgEndian { WIFI_IOT_SPI_CFG_ENDIAN_LITTLE, WIFI_IOT_SPI_CFG_ENDIAN_BIG }	Enumerates the endian mode of each frame.
WifiIotUartIdx { WIFI_IOT_UART_IDX_0, WIFI_IOT_UART_IDX_1, WIFI_IOT_UART_IDX_2, WIFI_IOT_UART_IDX_MAX }	Enumerates the UART serial number.
WifiIotUartIdxDataBit { WIFI_IOT_UART_DATA_BIT_5 = 5, WIFI_IOT_UART_DATA_BIT_6, WIFI_IOT_UART_DATA_BIT_7, WIFI_IOT_UART_DATA_BIT_8 }	Enumerates the number of UART data bits.
WifiIotUartStopBit { WIFI_IOT_UART_STOP_BIT_1 = 1, WIFI_IOT_UART_STOP_BIT_2 = 2 }	Enumerates the number of UART stop bits.
WifiIotUartParity { WIFI_IOT_UART_PARITY_NONE = 0, WIFI_IOT_UART_PARITY_ODD = 1, WIFI_IOT_UART_PARITY_EVEN = 2 }	Enumerates the UART parity bit.
WifiIotUartFifoLine { WIFI_IOT_FIFO_LINE_ONE_EIGHT = 1, WIFI_IOT_FIFO_LINE_ONE_QUARTER, WIFI_IOT_FIFO_LINE_HALF, WIFI_IOT_FIFO_LINE_THREE_QUARTERS, WIFI_IOT_FIFO_LINE_SEVEN_EIGHTS }	Enumerates UART FIFO interrupt thresholds.
WifiIotUartBlockState { WIFI_IOT_UART_BLOCK_STATE_NONE_BLOCK = 1, WIFI_IOT_UART_BLOCK_STATE_BLOCK }	Enumerates UART block states.
WifiIotUartDmaState { WIFI_IOT_UART_NONE_DMA = 1, WIFI_IOT_UART_USE_DMA }	Enumerates UART DMA states.
WifiIotFlowCtrl { WIFI_IOT_FLOW_CTRL_NONE, WIFI_IOT_FLOW_CTRL_RTS_CTS, WIFI_IOT_FLOW_CTRL_RTS_ONLY, WIFI_IOT_FLOW_CTRL_CTS_ONLY }	Enumerates hardware flow control modes.

## Functions

Function Name	Description
AdcRead (WifiIotAdcChannelIndex channel, unsigned short *data, WifiIotAdcEquModelSel equModel, WifiIotAdcCurBais curBais, unsigned short rstCnt)	unsigned int Reads a piece of sampled data from a specified ADC channel based on the input parameters.
AtRegisterCmd (const AtCmdTbl *cmdTbl, unsigned short cmdNum)	unsigned int Registers a certain number of AT commands.
AtSysCmdRegister (void)	void Registers a system AT command.
AtPrintf (const char *fmt,...)	int Formats data and outputs it to the AT command terminal.
AtInit (void)	unsigned int Initializes an AT command task.
AtCheckUartBusy (unsigned char enable)	void Sets whether to check the UART busy status during low-power voting.
FlashRead (const unsigned int flashOffset, const unsigned int size, unsigned char *ramData)	unsigned int Reads data from a flash memory address.
FlashWrite (const unsigned int flashOffset, unsigned int size, const unsigned char *ramData, unsigned char doErase)	unsigned int Writes data to a flash memory address.
FlashErase (const unsigned int flashOffset, const unsigned int size)	unsigned int Erases data in a specified flash memory address.
FlashInit (void)	unsigned int Initializes the flash device.
FlashDeinit (void)	unsigned int Deinitializes the flash device.
FlashIoctl (unsigned short cmd, char *data)	unsigned int Obtains flash information based on a specific command.
GpioInit (void)	unsigned int Initializes the GPIO device.
GpioDeinit (void)	unsigned int Deinitializes the GPIO device.
GpioSetDir (WifiIotGpioIdx id, WifiIotGpioDir dir)	unsigned int Sets the direction for a GPIO pin.
GpioGetDir (WifiIotGpioIdx id, WifiIotGpioDir *dir)	unsigned int Obtains the direction for a GPIO pin.
GpioSetOutputVal (WifiIotGpioIdx id, WifiIotGpioValue val)	unsigned int Sets the output level value for a GPIO pin.
GpioGetOutputVal (WifiIotGpioIdx id, WifiIotGpioValue *val)	unsigned int Obtains the output level value of a GPIO pin.
GpioGetInputVal (WifiIotGpioIdx id, WifiIotGpioValue *val)	unsigned int Obtains the input level value of a GPIO pin.
GpioRegisterIsrFunc (WifiIotGpioIdx id, WifiIotGpioIntType intType, WifiIotGpioIntPolarity intPolarity, GpioIsrCallbackFunc func, char *arg)	unsigned int Enables the interrupt function for a GPIO pin.
GpioUnregisterIsrFunc (WifiIotGpioIdx id)	unsigned int Disables the interrupt function for a GPIO pin.
GpioSetIsrMask (WifiIotGpioIdx id, unsigned char mask)	unsigned int Masks the interrupt function for a GPIO pin.
GpioSetIsrMode (WifiIotGpioIdx id, WifiIotGpioIntType intType, WifiIotGpioIntPolarity intPolarity)	unsigned int Sets the interrupt trigger mode of a GPIO pin.
IoSetPull (WifiIotIoName id, WifiIotIoPull val)	unsigned int Sets the pull for a GPIO pin.
IoSetFunc (WifiIotIoName id, unsigned char val)	unsigned int Sets the multiplexing function for a GPIO pin.
IoGetPull (WifiIotIoName id, WifiIotIoPull *val)	unsigned int Obtains the pull type of a GPIO pin.
IoGetFunc (WifiIotIoName id, unsigned char *val)	unsigned int Obtains the multiplexing function for a GPIO pin.
IOGetDriverStrength (WifiIotIoName id, WifiIotIoDriverStrength *val)	unsigned int Obtains the driver strength of a GPIO pin.
IOSetDriverStrength (WifiIotIoName id, WifiIotIoDriverStrength val)	unsigned int Sets the driver strength of a GPIO pin.
I2cInit (WifiIotI2cIdx id, unsigned int baudrate)	unsigned int Initializes an I2C device with a specified baud rate.
I2cDeinit (WifiIotI2cIdx id)	unsigned int Deinitializes an I2C device.
I2cWrite (WifiIotI2cIdx id, unsigned short deviceAddr, const WifiIotI2cData *i2cData)	unsigned int Writes data to an I2C device.
I2cRead (WifiIotI2cIdx id, unsigned short deviceAddr, const WifiIotI2cData *i2cData)	unsigned int Reads data from an I2C device.
I2cWriteread (WifiIotI2cIdx id, unsigned short deviceAddr, const WifiIotI2cData *i2cData)	unsigned int Sends data to and receives data responses from an I2C device.
I2cRegisterResetBusFunc (WifiIotI2cIdx id, WifiIotI2cFunc pfn)	void Registers an I2C callback.
I2cSetBaudrate (WifiIotI2cIdx id, unsigned int baudrate)	unsigned int Sets the baud rate for an I2C device.
I2sInit (const WifiIotI2sAttribute *i2sAttribute)	unsigned int Initializes the I2S device.
I2sDeinit (void)	unsigned int Deinitializes the I2S device.
I2sWrite (unsigned char *wrData, unsigned int wrLen, unsigned int timeOutMs)	unsigned int Writes data to the I2S device.
I2sRead (unsigned char *rdData, unsigned int rdLen, unsigned int timeOutMs)	unsigned int Reads data from the I2S device.
KalTickRegisterCallback (TickIdleKalCallback cb)	void Registers the CPU tick callback.
KalThreadRegisterIdleCallback (TickIdleKalCallback cb)	void Registers the idle task callback.
FlashPartitionInit (void)	unsigned int Initializes a flash partition.
GetPartitionTable (void)	WifiIotFlashPartitionTable * Obtains a flash partition table.
PwmInit (WifiIotPwmPort port)	unsigned int Initializes a PWM device.
PwmDeinit (WifiIotPwmPort port)	unsigned int Deinitializes a PWM device.
PwmStart (WifiIotPwmPort port, unsigned short duty, unsigned short freq)	unsigned int Outputs PWM signals based on the input parameters.
PwmStop (WifiIotPwmPort port)	unsigned int Stops the PWM signal output.
SdioInit (void)	unsigned int Initializes the SDIO device.
SdioReinit (void)	unsigned int Reinitializes the SDIO device.
SdioSoftReset (void)	void Resets the SDIO device.
SdioRegisterCallback (const WifiIotSdioIntcallback *callbackFunc)	unsigned int Registers an interrupt callback for the SDIO device.
SdioCompleteSend (unsigned char *admaTable, unsigned int admaIndex)	unsigned int Completes data sending on the SDIO device.
SdioSetPadAdmatab (unsigned int padlen, unsigned char *admatable, unsigned int admaIndex)	unsigned int Sets the ADMA table that requires data padding.
SdioWriteExtinfo (WifiIotSdioExtendFunc *extFunc)	unsigned int Sets the extended SDIO attributes.
SdioSendData (unsigned int xferBytes)	void Starts to send data.
SdioSetAdmatable (unsigned char admatable, unsigned int admaIndex, const unsigned int dataAddr, unsigned int dataLen)	unsigned int Sets an SDIO ADMA.
SdioSchedMsg (void)	unsigned int Sends a suspended SDIO message.
SdioSendSyncMsg (unsigned int msg)	unsigned int Adds a message to a message queue and sends the message.
SdioSendMsgAck (unsigned int msg)	unsigned int Sends a specified message.
SdioProcessMsg (unsigned int sendMsg, unsigned int clearMsg)	unsigned int Clears a specified suspended message in the message queue, adds a new message to it, and sends the new message.
SdioIsPendingMsg (unsigned int msg)	unsigned int Checks whether a specified message is suspended.
SdioIsSendingMsg (unsigned int msg)	unsigned int Checks whether a specified message is being sent.
SdioGetExtendInfo (void)	WifiIotSdioExtendFunc * Obtains the extended configuration.
SdioRegisterNotifyMessageCallback (NotifyHostMessageEvent msgEventCallback)	void Registers the callback that will be invoked when the host sends a message or data.
SdioSetPowerdownWhenDeepSleep (unsigned char powerDown)	void Sets whether the SDIO device is powered off in deep sleep mode.
SpiSlaveWrite (WifiIotSpiIdx spiId, char *writeData, unsigned int byteLen, unsigned int timeOutMs)	unsigned int Sends data in SPI slave mode.
SpiSlaveRead (WifiIotSpiIdx spiId, char *readData, unsigned int byteLen, unsigned int timeOutMs)	unsigned int Reads data in SPI slave mode.
SpiHostWrite (WifiIotSpiIdx spiId, char *writeData, unsigned int byteLen)	unsigned int Sends data in half-duplex SPI master mode.
SpiHostRead (WifiIotSpiIdx spiId, char *readData, unsigned int byteLen)	unsigned int Reads data in half-duplex SPI master mode.
SpiHostWriteread (WifiIotSpiIdx spiId, char writeData, char readData, unsigned int byteLen)	unsigned int Sends and reads data in full-duplex SPI master mode.
SpiSetBasicInfo (WifiIotSpiIdx spiId, const WifiIotSpiCfgBasicInfo *param)	unsigned int Sets the SPI channel parameter.
SpiInit (WifiIotSpiIdx spiId, WifiIotSpiCfgInitParam initParam, const WifiIotSpiCfgBasicInfo *param)	unsigned int Initializes an SPI device.
SpiDeinit (WifiIotSpiIdx spiId)	unsigned int Deinitializes an SPI device.
SpiSetIrqMode (WifiIotSpiIdx spiId, unsigned char irqEn)	unsigned int Sets whether to enable the interrupt request (IRQ) mode for an SPI device.
SpiSetDmaMode (WifiIotSpiIdx spiId, unsigned char dmaEn)	unsigned int Sets whether to enable DMA to transfer data for an SPI device in slave mode.
SpiRegisterUsrFunc (WifiIotSpiIdx spiId, SpiIsrFunc prepareF, SpiIsrFunc restoreF)	unsigned int Registers the data TX preparation/recovery function.
SpiSetLoopBackMode (WifiIotSpiIdx spiId, unsigned char lbEn)	unsigned int Sets whether to enable loopback test for an SPI device.
UartInit (WifiIotUartIdx id, const WifiIotUartAttribute param, const WifiIotUartExtraAttr extraAttr)	unsigned int Configures a UART device.
UartRead (WifiIotUartIdx id, unsigned char *data, unsigned int dataLen)	int Reads data from a UART device.
UartWrite (WifiIotUartIdx id, const unsigned char *data, unsigned int dataLen)	int Writes data to a UART device.
UartDeinit (WifiIotUartIdx id)	unsigned int Deinitializes a UART device.
UartSetFlowCtrl (WifiIotUartIdx id, WifiIotFlowCtrl flowCtrl)	unsigned int Sets UART hardware flow control.
UartIsBufEmpty (WifiIotUartIdx id, unsigned char *empty)	unsigned int Checks whether the buffer on a UART device is empty.
UartWriteImmediately (WifiIotUartIdx id, const unsigned char *data, unsigned int dataLen)	int Writes data to be sent to a UART device in polling mode.
UartGetAttribute (WifiIotUartIdx id, WifiIotUartAttribute attr, WifiIotUartExtraAttr extraAttr)	unsigned int Obtains UART attributes.
UartIsBusy (WifiIotUartIdx id, unsigned char *busy)	unsigned int Checks whether the buffer on a UART device is busy.
WatchDogEnable (void)	void Enables the watchdog.
WatchDogKick (void)	void Feeds the watchdog.
WatchDogDisable (void)	void Disables the watchdog.

## **Details** ## **Macro Definition Documentation** ## WIFI\_IOT\_ERR\_ADC\_INVALID\_CHANNEL\_ID ``` #define WIFI_IOT_ERR_ADC_INVALID_CHANNEL_ID 0x80001301 ``` **Description:** Defines an ADC error code to indicate an invalid channel. ## WIFI\_IOT\_ERR\_ADC\_NOT\_INIT ``` #define WIFI_IOT_ERR_ADC_NOT_INIT 0x80001303 ``` **Description:** Defines an ADC error code to indicate non-initialization. ## WIFI\_IOT\_ERR\_ADC\_PARAMETER\_WRONG ``` #define WIFI_IOT_ERR_ADC_PARAMETER_WRONG 0x80001300 ``` **Description:** Defines an ADC error code to indicate a parameter error. ## WIFI\_IOT\_ERR\_ADC\_TIMEOUT ``` #define WIFI_IOT_ERR_ADC_TIMEOUT 0x80001302 ``` **Description:** Defines an ADC error code to indicate a timeout. ## WIFI\_IOT\_ERR\_AT\_INVALID\_PARAMETER ``` #define WIFI_IOT_ERR_AT_INVALID_PARAMETER 0x80003281 ``` **Description:** Defines an AT error code to indicate an invalid parameter. ## WIFI\_IOT\_ERR\_AT\_NAME\_OR\_FUNC\_REPEAT\_REGISTERED ``` #define WIFI_IOT_ERR_AT_NAME_OR_FUNC_REPEAT_REGISTERED 0x80003280 ``` **Description:** Defines an AT error code to indicate repeated function registration. ## WIFI\_IOT\_ERR\_DMA\_BUSY ``` #define WIFI_IOT_ERR_DMA_BUSY 0x80001382 ``` **Description:** Defines a DMA error code to indicate the busy state. ## WIFI\_IOT\_ERR\_DMA\_CH\_IRQ\_ENABLE\_FAIL ``` #define WIFI_IOT_ERR_DMA_CH_IRQ_ENABLE_FAIL 0x80001387 ``` **Description:** Defines a DMA error code to indicate a failure in enabling channel interrupt. ## WIFI\_IOT\_ERR\_DMA\_GET\_NOTE\_FAIL ``` #define WIFI_IOT_ERR_DMA_GET_NOTE_FAIL 0x80001385 ``` **Description:** Defines a DMA error code to indicate a retrieval failure. ## WIFI\_IOT\_ERR\_DMA\_INVALID\_PARA ``` #define WIFI_IOT_ERR_DMA_INVALID_PARA 0x80001380 ``` **Description:** Defines a DMA error code to indicate an invalid parameter. ## WIFI\_IOT\_ERR\_DMA\_LLI\_NOT\_CREATE ``` #define WIFI_IOT_ERR_DMA_LLI_NOT_CREATE 0x80001386 ``` **Description:** Defines a DMA error code to indicate that the LLI is not created. ## WIFI\_IOT\_ERR\_DMA\_NOT\_INIT ``` #define WIFI_IOT_ERR_DMA_NOT_INIT 0x80001381 ``` **Description:** Defines a DMA error code to indicate non-initialization. ## WIFI\_IOT\_ERR\_DMA\_TRANSFER\_FAIL ``` #define WIFI_IOT_ERR_DMA_TRANSFER_FAIL 0x80001383 ``` **Description:** Defines a DMA error code to indicate a transmission failure. ## WIFI\_IOT\_ERR\_DMA\_TRANSFER\_TIMEOUT ``` #define WIFI_IOT_ERR_DMA_TRANSFER_TIMEOUT 0x80001384 ``` **Description:** Defines a DMA error code to indicate a transmission timeout. ## WIFI\_IOT\_ERR\_FLASH\_CRYPTO\_BEYOND\_ADDR\_SIZE ``` #define WIFI_IOT_ERR_FLASH_CRYPTO_BEYOND_ADDR_SIZE 0x800010F1 ``` **Description:** Defines a flash error code to indicate that the address is out of range. ## WIFI\_IOT\_ERR\_FLASH\_CRYPTO\_DATA\_DECRYPT\_ERR ``` #define WIFI_IOT_ERR_FLASH_CRYPTO_DATA_DECRYPT_ERR 0x800001F4 ``` **Description:** Defines a flash error code to indicate a decryption error. ## WIFI\_IOT\_ERR\_FLASH\_CRYPTO\_DATA\_ENCRYPT\_ERR ``` #define WIFI_IOT_ERR_FLASH_CRYPTO_DATA_ENCRYPT_ERR 0x800001F3 ``` **Description:** Defines a flash error code to indicate an encryption error. ## WIFI\_IOT\_ERR\_FLASH\_CRYPTO\_INVALID\_PARAM ``` #define WIFI_IOT_ERR_FLASH_CRYPTO_INVALID_PARAM 0x800010F0 ``` **Description:** Defines a flash error code to indicate an invalid parameter. ## WIFI\_IOT\_ERR\_FLASH\_CRYPTO\_KERNEL\_ADDR\_ERR ``` #define WIFI_IOT_ERR_FLASH_CRYPTO_KERNEL_ADDR_ERR 0x800001FB ``` **Description:** Defines a flash error code to indicate an incorrect kernel address.. ## WIFI\_IOT\_ERR\_FLASH\_CRYPTO\_KEY\_EMPTY\_ERR ``` #define WIFI_IOT_ERR_FLASH_CRYPTO_KEY_EMPTY_ERR 0x800001F5 ``` **Description:** Defines a flash error code to indicate an empty key value. ## WIFI\_IOT\_ERR\_FLASH\_CRYPTO\_KEY\_INVALID\_ERR ``` #define WIFI_IOT_ERR_FLASH_CRYPTO_KEY_INVALID_ERR 0x800001F9 ``` **Description:** Defines a flash error code to indicate an invalid key. ## WIFI\_IOT\_ERR\_FLASH\_CRYPTO\_KEY\_SAVE\_ERR ``` #define WIFI_IOT_ERR_FLASH_CRYPTO_KEY_SAVE_ERR 0x800001FA ``` **Description:** Defines a flash error code to indicate a failure in saving the key. ## WIFI\_IOT\_ERR\_FLASH\_CRYPTO\_MALLOC\_FAIL ``` #define WIFI_IOT_ERR_FLASH_CRYPTO_MALLOC_FAIL 0x800001F2 ``` **Description:** Defines a flash error code to indicate a failure in applying for memory. ## WIFI\_IOT\_ERR\_FLASH\_CRYPTO\_MEMCPY\_FAIL ``` #define WIFI_IOT_ERR_FLASH_CRYPTO_MEMCPY_FAIL 0x800001F6 ``` **Description:** Defines a flash error code to indicate a copy failure. ## WIFI\_IOT\_ERR\_FLASH\_CRYPTO\_NOT\_SUPPORT ``` #define WIFI_IOT_ERR_FLASH_CRYPTO_NOT_SUPPORT 0x800001F7 ``` **Description:** Defines a flash error code to indicate a non-support for encryption. ## WIFI\_IOT\_ERR\_FLASH\_CRYPTO\_PREPARE\_ERR ``` #define WIFI_IOT_ERR_FLASH_CRYPTO_PREPARE_ERR 0x800001F8 ``` **Description:** Defines a flash error code to indicate an incorrect parameter during encryption. ## WIFI\_IOT\_ERR\_FLASH\_ERASE\_NOT\_4K\_ALIGN ``` #define WIFI_IOT_ERR_FLASH_ERASE_NOT_4K_ALIGN 0x800010DB ``` **Description:** Defines a flash error code to indicate that the size of data to erase is not a multiple of 4K bytes. ## WIFI\_IOT\_ERR\_FLASH\_INITILIZATION ``` #define WIFI_IOT_ERR_FLASH_INITILIZATION 0x800010DA ``` **Description:** Defines a flash error code to indicate initialization. ## WIFI\_IOT\_ERR\_FLASH\_INVALID\_CHIP\_ID ``` #define WIFI_IOT_ERR_FLASH_INVALID_CHIP_ID 0x800010D4 ``` **Description:** Defines a flash error code to indicate an invalid chip ID. ## WIFI\_IOT\_ERR\_FLASH\_INVALID\_PARAM ``` #define WIFI_IOT_ERR_FLASH_INVALID_PARAM 0x800010C1 ``` **Description:** Defines a flash error code to indicate an invalid parameter. ## WIFI\_IOT\_ERR\_FLASH\_INVALID\_PARAM\_BEYOND\_ADDR ``` #define WIFI_IOT_ERR_FLASH_INVALID_PARAM_BEYOND_ADDR 0x800010C2 ``` **Description:** Defines a flash error code to indicate that the address is out of range. ## WIFI\_IOT\_ERR\_FLASH\_INVALID\_PARAM\_DATA\_NULL ``` #define WIFI_IOT_ERR_FLASH_INVALID_PARAM_DATA_NULL 0x800010C6 ``` **Description:** Defines a flash error code to indicate empty data. ## WIFI\_IOT\_ERR\_FLASH\_INVALID\_PARAM\_ERASE\_NOT\_ALIGN ``` #define WIFI_IOT_ERR_FLASH_INVALID_PARAM_ERASE_NOT_ALIGN 0x800010C4 ``` **Description:** Defines a flash error code to indicate that the erase size is not aligned. ## WIFI\_IOT\_ERR\_FLASH\_INVALID\_PARAM\_IOCTRL\_DATA\_NULL ``` #define WIFI_IOT_ERR_FLASH_INVALID_PARAM_IOCTRL_DATA_NULL 0x800010C5 ``` **Description:** Defines a flash error code to indicate that the data of the I/O controller is empty. ## WIFI\_IOT\_ERR\_FLASH\_INVALID\_PARAM\_PAD1 ``` #define WIFI_IOT_ERR_FLASH_INVALID_PARAM_PAD1 0x800010C7 ``` **Description:** Defines a flash error code to indicate that pad1 is incorrect. ## WIFI\_IOT\_ERR\_FLASH\_INVALID\_PARAM\_PAD2 ``` #define WIFI_IOT_ERR_FLASH_INVALID_PARAM_PAD2 0x800010C8 ``` **Description:** Defines a flash error code to indicate that pad2 is incorrect. ## WIFI\_IOT\_ERR\_FLASH\_INVALID\_PARAM\_PAD3 ``` #define WIFI_IOT_ERR_FLASH_INVALID_PARAM_PAD3 0x800010C9 ``` **Description:** Defines a flash error code to indicate that pad3 is incorrect. ## WIFI\_IOT\_ERR\_FLASH\_INVALID\_PARAM\_PAD4 ``` #define WIFI_IOT_ERR_FLASH_INVALID_PARAM_PAD4 0x800010CA ``` **Description:** Defines a flash error code to indicate that pad4 is incorrect. ## WIFI\_IOT\_ERR\_FLASH\_INVALID\_PARAM\_SIZE\_ZERO ``` #define WIFI_IOT_ERR_FLASH_INVALID_PARAM_SIZE_ZERO 0x800010C3 ``` **Description:** Defines a flash error code to indicate that the parameter size is **0** ## WIFI\_IOT\_ERR\_FLASH\_MAX\_SPI\_OP ``` #define WIFI_IOT_ERR_FLASH_MAX_SPI_OP 0x800010D2 ``` **Description:** Defines a flash error code to indicate the maximum value of the SPI operation. ## WIFI\_IOT\_ERR\_FLASH\_NO\_MATCH\_ERASE\_SIZE ``` #define WIFI_IOT_ERR_FLASH_NO_MATCH_ERASE_SIZE 0x800010D1 ``` **Description:** Defines a flash error code to indicate a mismatch in the size of data to erase. ## WIFI\_IOT\_ERR\_FLASH\_NO\_MATCH\_FLASH ``` #define WIFI_IOT_ERR_FLASH_NO_MATCH_FLASH 0x800010CF ``` **Description:** Defines a flash error code to indicate a flash mismatch. ## WIFI\_IOT\_ERR\_FLASH\_NOT\_INIT ``` #define WIFI_IOT_ERR_FLASH_NOT_INIT 0x800010C0 ``` **Description:** Defines a flash error code to indicate non-initialization. ## WIFI\_IOT\_ERR\_FLASH\_NOT\_SUPPORT\_IOCTRL\_ID ``` #define WIFI_IOT_ERR_FLASH_NOT_SUPPORT_IOCTRL_ID 0x800010D3 ``` **Description:** Defines a flash error code to indicate an unsupported IO controller ID.. ## WIFI\_IOT\_ERR\_FLASH\_PATITION\_INIT\_FAIL ``` #define WIFI_IOT_ERR_FLASH_PATITION_INIT_FAIL 0x800010D9 ``` **Description:** Defines a flash error code to indicate a partition initialization failure. ## WIFI\_IOT\_ERR\_FLASH\_PROTECT\_NOT\_FIND\_CHIP ``` #define WIFI_IOT_ERR_FLASH_PROTECT_NOT_FIND_CHIP 0x800010DF ``` **Description:** Defines a flash error code to indicate that no chip is found. ## WIFI\_IOT\_ERR\_FLASH\_PROTECT\_NOT\_INIT ``` #define WIFI_IOT_ERR_FLASH_PROTECT_NOT_INIT 0x800010DD ``` **Description:** Defines a flash error code to indicate non-initialization. ## WIFI\_IOT\_ERR\_FLASH\_PROTECT\_NOT\_SUPPORT ``` #define WIFI_IOT_ERR_FLASH_PROTECT_NOT_SUPPORT 0x800010DC ``` **Description:** Defines a flash error code to indicate a non-support. ## WIFI\_IOT\_ERR\_FLASH\_PROTECT\_RE\_INIT ``` #define WIFI_IOT_ERR_FLASH_PROTECT_RE_INIT 0x800010DE ``` **Description:** Defines a flash error code to indicate repeated initialization. ## WIFI\_IOT\_ERR\_FLASH\_QUAD\_MODE\_COMPARE\_REG ``` #define WIFI_IOT_ERR_FLASH_QUAD_MODE_COMPARE_REG 0x800010CE ``` **Description:** Defines a flash error code to indicate that an error occurs when comparing registers. ## WIFI\_IOT\_ERR\_FLASH\_QUAD\_MODE\_READ\_REG1 ``` #define WIFI_IOT_ERR_FLASH_QUAD_MODE_READ_REG1 0x800010CC ``` **Description:** Defines a flash error code to indicate that an error occurs when reading register 1. ## WIFI\_IOT\_ERR\_FLASH\_QUAD\_MODE\_READ\_REG2 ``` #define WIFI_IOT_ERR_FLASH_QUAD_MODE_READ_REG2 0x800010CD ``` **Description:** Defines a flash error code to indicate that an error occurs when reading register 2. ## WIFI\_IOT\_ERR\_FLASH\_RE\_INIT ``` #define WIFI_IOT_ERR_FLASH_RE_INIT 0x800010D5 ``` **Description:** Defines a flash error code to indicate repeated initialization. ## WIFI\_IOT\_ERR\_FLASH\_TIME\_OUT\_WAIT\_READY ``` #define WIFI_IOT_ERR_FLASH_TIME_OUT_WAIT_READY 0x800010CB ``` **Description:** Defines a flash error code to indicate a timeout on waiting for ready. ## WIFI\_IOT\_ERR\_FLASH\_WAIT\_CFG\_START\_TIME\_OUT ``` #define WIFI_IOT_ERR_FLASH_WAIT_CFG_START_TIME_OUT 0x800010D8 ``` **Description:** Defines a flash error code to indicate a timeout on waiting for a configuration to start. ## WIFI\_IOT\_ERR\_FLASH\_WRITE\_COMPARE\_WRONG ``` #define WIFI_IOT_ERR_FLASH_WRITE_COMPARE_WRONG 0x800010D7 ``` **Description:** Defines a flash error code to indicate that an error occurs when comparing the data written. ## WIFI\_IOT\_ERR\_FLASH\_WRITE\_ENABLE ``` #define WIFI_IOT_ERR_FLASH_WRITE_ENABLE 0x800010D0 ``` **Description:** Defines a flash error code to indicate a failure in enabling write. ## WIFI\_IOT\_ERR\_FLASH\_WRITE\_NOT\_SUPPORT\_ERASE ``` #define WIFI_IOT_ERR_FLASH_WRITE_NOT_SUPPORT_ERASE 0x800010D6 ``` **Description:** Defines a flash error code to indicate a non-support for data erasure. ## WIFI\_IOT\_ERR\_GPIO\_INVALID\_PARAMETER ``` #define WIFI_IOT_ERR_GPIO_INVALID_PARAMETER 0x80001040 ``` **Description:** Defines a GPIO error code to indicate an invalid parameter. ## WIFI\_IOT\_ERR\_GPIO\_NOT\_INIT ``` #define WIFI_IOT_ERR_GPIO_NOT_INIT 0x80001042 ``` **Description:** Defines a GPIO error code to indicate non-initialization. ## WIFI\_IOT\_ERR\_GPIO\_NOT\_SUPPORT ``` #define WIFI_IOT_ERR_GPIO_NOT_SUPPORT 0x80001043 ``` **Description:** Defines a GPIO error code to indicate a non-support. ## WIFI\_IOT\_ERR\_GPIO\_REPEAT\_INIT ``` #define WIFI_IOT_ERR_GPIO_REPEAT_INIT 0x80001041 ``` **Description:** Defines a GPIO error code to indicate repeated initialization. ## WIFI\_IOT\_ERR\_I2C\_INVALID\_PARAMETER ``` #define WIFI_IOT_ERR_I2C_INVALID_PARAMETER 0x80001181 ``` **Description:** Defines an I2C error code to indicate an invalid parameter. ## WIFI\_IOT\_ERR\_I2C\_NOT\_INIT ``` #define WIFI_IOT_ERR_I2C_NOT_INIT 0x80001180 ``` **Description:** Defines an I2C error code to indicate a non-support. ## WIFI\_IOT\_ERR\_I2C\_START\_ACK\_ERR ``` #define WIFI_IOT_ERR_I2C_START_ACK_ERR 0x80001188 ``` **Description:** Defines an I2C error code to indicate a responding failure. ## WIFI\_IOT\_ERR\_I2C\_TIMEOUT\_RCV\_BYTE ``` #define WIFI_IOT_ERR_I2C_TIMEOUT_RCV_BYTE 0x80001185 ``` **Description:** Defines an I2C error code to indicate a receive timeout. ## WIFI\_IOT\_ERR\_I2C\_TIMEOUT\_RCV\_BYTE\_PROC ``` #define WIFI_IOT_ERR_I2C_TIMEOUT_RCV_BYTE_PROC 0x80001186 ``` **Description:** Defines an I2C error code to indicate a processing timeout. ## WIFI\_IOT\_ERR\_I2C\_TIMEOUT\_START ``` #define WIFI_IOT_ERR_I2C_TIMEOUT_START 0x80001182 ``` **Description:** Defines an I2C error code to indicate a start timeout. ## WIFI\_IOT\_ERR\_I2C\_TIMEOUT\_STOP ``` #define WIFI_IOT_ERR_I2C_TIMEOUT_STOP 0x80001184 ``` **Description:** Defines an I2C error code to indicate a stop timeout. ## WIFI\_IOT\_ERR\_I2C\_TIMEOUT\_WAIT ``` #define WIFI_IOT_ERR_I2C_TIMEOUT_WAIT 0x80001183 ``` **Description:** Defines an I2C error code to indicate a wait timeout. ## WIFI\_IOT\_ERR\_I2C\_WAIT\_ACK\_ERR ``` #define WIFI_IOT_ERR_I2C_WAIT_ACK_ERR 0x80001189 ``` **Description:** Defines an I2C error code to indicate a failure in waiting for a response. ## WIFI\_IOT\_ERR\_I2C\_WAIT\_SEM\_FAIL ``` #define WIFI_IOT_ERR_I2C_WAIT_SEM_FAIL 0x80001187 ``` **Description:** Defines an I2C error code to indicate a waiting failure. ## WIFI\_IOT\_ERR\_I2S\_INVALID\_PARAMETER ``` #define WIFI_IOT_ERR_I2S_INVALID_PARAMETER 0x80001400 ``` **Description:** Defines an I2S error code to indicate an invalid parameter. ## WIFI\_IOT\_ERR\_I2S\_WRITE\_TIMEOUT ``` #define WIFI_IOT_ERR_I2S_WRITE_TIMEOUT 0x80001401 ``` **Description:** Defines an I2S error code to indicate a write timeout. ## WIFI\_IOT\_ERR\_PWM\_INITILIZATION\_ALREADY ``` #define WIFI_IOT_ERR_PWM_INITILIZATION_ALREADY 0x80001341 ``` **Description:** Defines a PWM error code to indicate an initialization error. ## WIFI\_IOT\_ERR\_PWM\_INVALID\_PARAMETER ``` #define WIFI_IOT_ERR_PWM_INVALID_PARAMETER 0x80001342 ``` **Description:** Defines a PWM error code to indicate an invalid parameter. ## WIFI\_IOT\_ERR\_PWM\_NO\_INIT ``` #define WIFI_IOT_ERR_PWM_NO_INIT 0x80001340 ``` **Description:** Defines a PWM error code to indicate non-initialization. ## WIFI\_IOT\_ERR\_SDIO\_INVALID\_PARAMETER ``` #define WIFI_IOT_ERR_SDIO_INVALID_PARAMETER 0x80001280 ``` **Description:** Defines an SDIO error code to indicate an invalid parameter. ## WIFI\_IOT\_ERR\_SPI\_BUSY ``` #define WIFI_IOT_ERR_SPI_BUSY 0x800011C3 ``` **Description:** Defines an SPI error code to indicate the busy state. ## WIFI\_IOT\_ERR\_SPI\_NOT\_INIT ``` #define WIFI_IOT_ERR_SPI_NOT_INIT 0x800011C0 ``` **Description:** Defines an SPI error code to indicate non-initialization. ## WIFI\_IOT\_ERR\_SPI\_NOT\_SUPPORT\_DMA ``` #define WIFI_IOT_ERR_SPI_NOT_SUPPORT_DMA 0x800011C6 ``` **Description:** Defines an SPI error code to indicate a non-support for DMA. ## WIFI\_IOT\_ERR\_SPI\_PARAMETER\_WRONG ``` #define WIFI_IOT_ERR_SPI_PARAMETER_WRONG 0x800011C2 ``` **Description:** Defines an SPI error code to indicate a parameter error. ## WIFI\_IOT\_ERR\_SPI\_READ\_TIMEOUT ``` #define WIFI_IOT_ERR_SPI_READ_TIMEOUT 0x800011C5 ``` **Description:** Defines an SPI error code to indicate a read timeout. ## WIFI\_IOT\_ERR\_SPI\_REINIT ``` #define WIFI_IOT_ERR_SPI_REINIT 0x800011C1 ``` **Description:** Defines an SPI error code to indicate repeated initialization. ## WIFI\_IOT\_ERR\_SPI\_WRITE\_TIMEOUT ``` #define WIFI_IOT_ERR_SPI_WRITE_TIMEOUT 0x800011C4 ``` **Description:** Defines an SPI error code to indicate a write timeout. ## WIFI\_IOT\_ERR\_UART\_INVALID\_BAUD ``` #define WIFI_IOT_ERR_UART_INVALID_BAUD 0x80001005 ``` **Description:** Defines a UART error code to indicate an invalid baud rate. ## WIFI\_IOT\_ERR\_UART\_INVALID\_COM\_PORT ``` #define WIFI_IOT_ERR_UART_INVALID_COM_PORT 0x80001006 ``` **Description:** Defines a UART error code to indicate an invalid port number. ## WIFI\_IOT\_ERR\_UART\_INVALID\_DATA\_BITS ``` #define WIFI_IOT_ERR_UART_INVALID_DATA_BITS 0x80001003 ``` **Description:** Defines a UART error code to indicate an invalid data bit. ## WIFI\_IOT\_ERR\_UART\_INVALID\_PARAMETER ``` #define WIFI_IOT_ERR_UART_INVALID_PARAMETER 0x80001000 ``` **Description:** Defines a UART error code to indicate an invalid parameter. ## WIFI\_IOT\_ERR\_UART\_INVALID\_PARITY ``` #define WIFI_IOT_ERR_UART_INVALID_PARITY 0x80001002 ``` **Description:** Defines a UART error code to indicate an invalid parity check. ## WIFI\_IOT\_ERR\_UART\_INVALID\_STOP\_BITS ``` #define WIFI_IOT_ERR_UART_INVALID_STOP_BITS 0x80001004 ``` **Description:** Defines a UART error code to indicate an invalid stop bit. ## WIFI\_IOT\_ERR\_UART\_INVALID\_SUSPEND ``` #define WIFI_IOT_ERR_UART_INVALID_SUSPEND 0x80001001 ``` **Description:** Defines a UART error code to indicate an invalid pause operation. ## WIFI\_IOT\_ERR\_UART\_NOT\_BLOCK\_MODE ``` #define WIFI_IOT_ERR_UART_NOT_BLOCK_MODE 0x80001008 ``` **Description:** Defines a UART error code to indicate the non-block mode. ## WIFI\_IOT\_ERR\_UART\_NOT\_SUPPORT\_DMA ``` #define WIFI_IOT_ERR_UART_NOT_SUPPORT_DMA 0x80001007 ``` **Description:** Defines a UART error code to indicate a non-support for DMA. ## WIFI\_IOT\_FAILURE ``` #define WIFI_IOT_FAILURE (-1) ``` **Description:** Defines a module-level return value to indicate an operation failure. ## WIFI\_IOT\_SUCCESS ``` #define WIFI_IOT_SUCCESS 0 ``` **Description:** Defines a module-level return value to indicate a successful operation. ## **Typedef Documentation** ## GpioIsrCallbackFunc ``` typedef void(* GpioIsrCallbackFunc) (char *arg) ``` **Description:** Indicates the GPIO interrupt callback. ## I2cPrepareFunc ``` typedef void(* I2cPrepareFunc) (void) ``` **Description:** Indicates the callback invoked for device preparation. ## I2CResetFunc ``` typedef void(* I2CResetFunc) (void) ``` **Description:** Indicates the callback invoked when a device exception occurs. ## I2cRestoreFunc ``` typedef void(* I2cRestoreFunc) (void) ``` **Description:** Indicates the callback invoked for device recovery. ## TickIdleKalCallback ``` typedef void(* TickIdleKalCallback) (void) ``` **Description:** Indicates the idle task and CPU tick callbacks. ## **Enumeration Type Documentation** ## WifiiIotIoFuncGpio1 ``` enum [WifiiIotIoFuncGpio1](Wifiiot.md#gae9c6ae0f852d8701036823a6223adf7e) ``` **Description:** Enumerates the functions of GPIO hardware pin 1.

Enumerator	Description
WIFI_IOT_IO_FUNC_GPIO_1_GPIO	GPIO1 function

## WifiIotAdcChannelIndex ``` enum [WifiIotAdcChannelIndex](Wifiiot.md#ga4c8b663163c7b23071914947a2bca73b) ``` **Description:** Enumerates ADC channel indexes.

Enumerator	Description
WIFI_IOT_ADC_CHANNEL_0	Channel 0
WIFI_IOT_ADC_CHANNEL_1	Channel 1
WIFI_IOT_ADC_CHANNEL_2	Channel 2
WIFI_IOT_ADC_CHANNEL_3	Channel 3
WIFI_IOT_ADC_CHANNEL_4	Channel 4
WIFI_IOT_ADC_CHANNEL_5	Channel 5
WIFI_IOT_ADC_CHANNEL_6	Channel 6
WIFI_IOT_ADC_CHANNEL_7	Channel 7
WIFI_IOT_ADC_CHANNEL_BUTT	Button value

## WifiIotAdcCurBais ``` enum [WifiIotAdcCurBais](Wifiiot.md#gaac161eb7075f815f6d39a63615bfa82d) ``` **Description:** Enumerates analog power control modes.

Enumerator	Description
WIFI_IOT_ADC_CUR_BAIS_DEFAULT	Automatic control
WIFI_IOT_ADC_CUR_BAIS_AUTO	Automatic control
WIFI_IOT_ADC_CUR_BAIS_1P8V	Manual control (AVDD = 1.8 V)
WIFI_IOT_ADC_CUR_BAIS_3P3V	Manual control (AVDD = 3.3 V)
WIFI_IOT_ADC_CUR_BAIS_BUTT	Button value

## WifiIotAdcEquModelSel ``` enum [WifiIotAdcEquModelSel](Wifiiot.md#gafb9992ebf1655f994dc56883c8fe4b2e) ``` **Description:** Enumerates equation models.

Enumerator	Description
WIFI_IOT_ADC_EQU_MODEL_1	One-equation model
WIFI_IOT_ADC_EQU_MODEL_2	Two-equation model
WIFI_IOT_ADC_EQU_MODEL_4	Four-equation model
WIFI_IOT_ADC_EQU_MODEL_8	Eight-equation model
WIFI_IOT_ADC_EQU_MODEL_BUTT	Button value

## WifiIotFlashPartitionTableId ``` enum [WifiIotFlashPartitionTableId](Wifiiot.md#ga2f287bbb40987fe6d1d7fa525574c00c) ``` **Description:** Indicates the partition table ID.

Enumerator	Description
WIFI_IOT_FLASH_PARTITON_BOOT	Boot partition ID
WIFI_IOT_FLASH_PARTITON_FACTORY_NV	Factory NV partition ID
WIFI_IOT_FLASH_PARTITON_NORMAL_NV	Normal NV partition ID
WIFI_IOT_FLASH_PARTITON_NORMAL_NV_BACKUP	Normal backup NV partition ID
WIFI_IOT_FLASH_PARTITON_KERNEL_A	Kernel A running partition ID
WIFI_IOT_FLASH_PARTITON_KERNEL_B	Kernel B running partition ID
WIFI_IOT_FLASH_PARTITON_HILINK	HiLink partition ID
WIFI_IOT_FLASH_PARTITON_FILE_SYSTEM	File system partition ID
WIFI_IOT_FLASH_PARTITON_USR_RESERVE	User reserved partition ID
WIFI_IOT_FLASH_PARTITON_HILINK_PKI	HiLink PKI partition ID
WIFI_IOT_FLASH_PARTITON_CRASH_INFO	Crash log partition ID
WIFI_IOT_FLASH_PARTITON_BOOT_BACK	Backup boot partition ID

## WifiIotFlowCtrl ``` enum [WifiIotFlowCtrl](Wifiiot.md#gacf7ec5d973706e8239c7c6e4a470d8ab) ``` **Description:** Enumerates hardware flow control modes.

Enumerator	Description
WIFI_IOT_FLOW_CTRL_NONE	Hardware flow control disabled
WIFI_IOT_FLOW_CTRL_RTS_CTS	RTS and CTS hardware flow control enabled
WIFI_IOT_FLOW_CTRL_RTS_ONLY	RTS hardware flow control enabled
WIFI_IOT_FLOW_CTRL_CTS_ONLY	RTS hardware flow control enabled

## WifiIotGpioDir ``` enum [WifiIotGpioDir](Wifiiot.md#gab4b1fb50c758d491ba297a65e1c7a70a) ``` **Description:** Enumerates GPIO directions.

Enumerator	Description
WIFI_IOT_GPIO_DIR_IN	Input
WIFI_IOT_GPIO_DIR_OUT	Output

## WifiIotGpioIdx ``` enum [WifiIotGpioIdx](Wifiiot.md#gacb21f234cf149161f1f95f3330eeb8e7) ``` **Description:** Enumerates GPIO pin IDs.

Enumerator	Description
WIFI_IOT_GPIO_IDX_0	GPIO0
WIFI_IOT_GPIO_IDX_1	GPIO1
WIFI_IOT_GPIO_IDX_2	GPIO2
WIFI_IOT_GPIO_IDX_3	GPIO3
WIFI_IOT_GPIO_IDX_4	GPIO4
WIFI_IOT_GPIO_IDX_5	GPIO5
WIFI_IOT_GPIO_IDX_6	GPIO6
WIFI_IOT_GPIO_IDX_7	GPIO7
WIFI_IOT_GPIO_IDX_8	GPIO8
WIFI_IOT_GPIO_IDX_9	GPIO9
WIFI_IOT_GPIO_IDX_10	GPIO10
WIFI_IOT_GPIO_IDX_11	GPIO11
WIFI_IOT_GPIO_IDX_12	GPIO12
WIFI_IOT_GPIO_IDX_13	GPIO13
WIFI_IOT_GPIO_IDX_14	GPIO14
WIFI_IOT_GPIO_IDX_MAX	Maximum value

## WifiIotGpioIntPolarity ``` enum [WifiIotGpioIntPolarity](Wifiiot.md#gab81589838cedcc3933bb789c97ad3643) ``` **Description:** Enumerates I/O interrupt polarities.

Enumerator	Description
WIFI_IOT_GPIO_EDGE_FALL_LEVEL_LOW	Interrupt at a low level or falling edge
WIFI_IOT_GPIO_EDGE_RISE_LEVEL_HIGH	Interrupt at a high level or rising edge

## WifiIotGpioIntType ``` enum [WifiIotGpioIntType](Wifiiot.md#gac8eb8ad448903ed52c96ccc675e81f94) ``` **Description:** Enumerates GPIO interrupt trigger modes.

Enumerator	Description
WIFI_IOT_INT_TYPE_LEVEL	Level-sensitive interrupt
WIFI_IOT_INT_TYPE_EDGE	Edge-sensitive interrupt

## WifiIotGpioValue ``` enum [WifiIotGpioValue](Wifiiot.md#gac9095d1db72e5046b2ec1895aaec0e6b) ``` **Description:** Enumerates GPIO level values.

Enumerator	Description
WIFI_IOT_GPIO_VALUE0	Low GPIO level
WIFI_IOT_GPIO_VALUE1	High GPIO level

## WifiIotI2cIdx ``` enum [WifiIotI2cIdx](Wifiiot.md#gaeeb58e02e3783d02e1ed4bad313cc0b8) ``` **Description:** Enumerates I2C hardware indexes.

Enumerator	Description
WIFI_IOT_I2C_IDX_0	I2C hardware index 0
WIFI_IOT_I2C_IDX_1	I2C hardware index 1

## WifiIotI2sResolution ``` enum [WifiIotI2sResolution](Wifiiot.md#gac024b870d63e802d8119e88a82953807) ``` **Description:** Enumerates I2S resolution.

Enumerator	Description
WIFI_IOT_I2S_RESOLUTION_16BIT	16-bit resolution
WIFI_IOT_I2S_RESOLUTION_24BIT	24-bit resolution

## WifiIotI2sSampleRate ``` enum [WifiIotI2sSampleRate](Wifiiot.md#ga5e124d70b18cf4cff40bcce78445f689) ``` **Description:** Enumerates I2S sampling rates.

Enumerator	Description
WIFI_IOT_I2S_SAMPLE_RATE_8K	8K sampling rate
WIFI_IOT_I2S_SAMPLE_RATE_16K	16K sampling rate
WIFI_IOT_I2S_SAMPLE_RATE_32K	32K sampling rate
WIFI_IOT_I2S_SAMPLE_RATE_48K	48K sampling rate

## WifiIotIoDriverStrength ``` enum [WifiIotIoDriverStrength](Wifiiot.md#gae97ab4109f511ceeee889dba9e79a968) ``` **Description:** Enumerates I/O driver strength levels.

Enumerator	Description
WIFI_IOT_IO_DRIVER_STRENGTH_0	Driver strength level 0 (highest)
WIFI_IOT_IO_DRIVER_STRENGTH_1	Driver strength level 1
WIFI_IOT_IO_DRIVER_STRENGTH_2	Driver strength level 2
WIFI_IOT_IO_DRIVER_STRENGTH_3	Driver strength level 3
WIFI_IOT_IO_DRIVER_STRENGTH_4	Driver strength level 4
WIFI_IOT_IO_DRIVER_STRENGTH_5	Driver strength level 5
WIFI_IOT_IO_DRIVER_STRENGTH_6	Driver strength level 6
WIFI_IOT_IO_DRIVER_STRENGTH_7	Driver strength level 7 (lowest)
WIFI_IOT_IO_DRIVER_STRENGTH_MAX	Maximum value

## WifiIotIoFuncGpio0 ``` enum [WifiIotIoFuncGpio0](Wifiiot.md#ga2b08eb2a302e2c4fa216a1373bea4a01) ``` **Description:** Enumerates the functions of GPIO hardware pin 0.

Enumerator	Description
WIFI_IOT_IO_FUNC_GPIO_0_GPIO	GPIO0 function
WIFI_IOT_IO_FUNC_GPIO_0_UART1_TXD	Functions of UART1 TXD
WIFI_IOT_IO_FUNC_GPIO_0_SPI1_CK	SPI1 CK function
WIFI_IOT_IO_FUNC_GPIO_0_JTAG_TDO	Functions of JTAG TD0
WIFI_IOT_IO_FUNC_GPIO_0_PWM3_OUT	PWM3 OUT function
WIFI_IOT_IO_FUNC_GPIO_0_I2C1_SDA	I2C1 SDA function

## WifiIotIoFuncGpio10 ``` enum [WifiIotIoFuncGpio10](Wifiiot.md#gad4670688ad729f40424bccfeb1afc3b2) ``` **Description:** Enumerates the functions of GPIO hardware pin 10.

Enumerator	Description
WIFI_IOT_IO_FUNC_GPIO_10_GPIO	GPIO10 function
WIFI_IOT_IO_FUNC_GPIO_10_I2C0_SDA	I2C0 SDA function
WIFI_IOT_IO_FUNC_GPIO_10_UART2_CTS_N	UART2 CTS function
WIFI_IOT_IO_FUNC_GPIO_10_SDIO_D3	SDIO D3 function
WIFI_IOT_IO_FUNC_GPIO_10_SPI0_CK	SPI0 CK function
WIFI_IOT_IO_FUNC_GPIO_10_PWM1_OUT	PWM1 OUT function
WIFI_IOT_IO_FUNC_GPIO_10_I2S0_TX	I2S0 TX function

## WifiIotIoFuncGpio11 ``` enum [WifiIotIoFuncGpio11](Wifiiot.md#ga5099248aa82355e85ba5a6227f2ab1a7) ``` **Description:** Enumerates the functions of GPIO hardware pin 11.

Enumerator	Description
WIFI_IOT_IO_FUNC_GPIO_11_GPIO	GPIO11 function
WIFI_IOT_IO_FUNC_GPIO_11_UART2_TXD	UART2 TXD function
WIFI_IOT_IO_FUNC_GPIO_11_SDIO_CMD	SDIO CMD function
WIFI_IOT_IO_FUNC_GPIO_11_SPI0_RXD	SDIO RXD function
WIFI_IOT_IO_FUNC_GPIO_11_PWM2_OUT	PWM2 OUT function
WIFI_IOT_IO_FUNC_GPIO_11_RF_TX_EN_EXT	RF TX_EN_EXT function
WIFI_IOT_IO_FUNC_GPIO_11_I2S0_RX	I2S0 RX function

## WifiIotIoFuncGpio12 ``` enum [WifiIotIoFuncGpio12](Wifiiot.md#gaed0008f886fc864d90f6d1c2ae9677a0) ``` **Description:** Enumerates the functions of GPIO hardware pin 12.

Enumerator	Description
WIFI_IOT_IO_FUNC_GPIO_12_GPIO	GPIO12 function
WIFI_IOT_IO_FUNC_GPIO_12_UART2_RXD	SUART2 RXD function
WIFI_IOT_IO_FUNC_GPIO_12_SDIO_CLK	SDIO CLK function
WIFI_IOT_IO_FUNC_GPIO_12_SPI0_CSN	SDIO CSN function
WIFI_IOT_IO_FUNC_GPIO_12_PWM3_OUT	PWM3 OUT function
WIFI_IOT_IO_FUNC_GPIO_12_RF_RX_EN_EXT	RF RX_EN_EXT function
WIFI_IOT_IO_FUNC_GPIO_12_I2S0_BCLK	I2S0 BCLK function

## WifiIotIoFuncGpio13 ``` enum [WifiIotIoFuncGpio13](Wifiiot.md#ga364b7c7cc88086ad40c4c3d2dd098648) ``` **Description:** Enumerates the functions of GPIO hardware pin 13.

Enumerator	Description
WIFI_IOT_IO_FUNC_GPIO_13_SSI_DATA	SSI DATA function
WIFI_IOT_IO_FUNC_GPIO_13_UART0_TXD	UART0 TXD function
WIFI_IOT_IO_FUNC_GPIO_13_UART2_RTS_N	UART2 RTS function
WIFI_IOT_IO_FUNC_GPIO_13_SDIO_D0	SDIO D0 function
WIFI_IOT_IO_FUNC_GPIO_13_GPIO	GPIO13 function
WIFI_IOT_IO_FUNC_GPIO_13_PWM4_OUT	PWM4 OUT function
WIFI_IOT_IO_FUNC_GPIO_13_I2C0_SDA	I2C0 SDA function
WIFI_IOT_IO_FUNC_GPIO_13_I2S0_WS	I2S0 WS function

## WifiIotIoFuncGpio14 ``` enum [WifiIotIoFuncGpio14](Wifiiot.md#gafcf6d4cb0113b803d834bac89af8d9b8) ``` **Description:** Enumerates the functions of GPIO hardware pin 14.

Enumerator	Description
WIFI_IOT_IO_FUNC_GPIO_14_SSI_CLK	SSI CLK function
WIFI_IOT_IO_FUNC_GPIO_14_UART0_RXD	UART0 RXD function
WIFI_IOT_IO_FUNC_GPIO_14_UART2_CTS_N	UART2 CTS function
WIFI_IOT_IO_FUNC_GPIO_14_SDIO_D1	SDIO D1 function
WIFI_IOT_IO_FUNC_GPIO_14_GPIO	GPIO14 function
WIFI_IOT_IO_FUNC_GPIO_14_PWM5_OUT	PWM5 OUT function
WIFI_IOT_IO_FUNC_GPIO_14_I2C0_SCL	I2C0 SCL function

## WifiIotIoFuncGpio2 ``` enum [WifiIotIoFuncGpio2](Wifiiot.md#gac9d0974184776d35ca9b0f73829f317b) ``` **Description:** Enumerates the functions of GPIO hardware pin 2.

Enumerator	Description
WIFI_IOT_IO_FUNC_GPIO_2_GPIO	GPIO2 function
WIFI_IOT_IO_FUNC_GPIO_2_UART1_RTS_N	UART1 RTS function
WIFI_IOT_IO_FUNC_GPIO_2_SPI1_TXD	SPI1 TXD function
WIFI_IOT_IO_FUNC_GPIO_2_JTAG_TRSTN	JTAG TRSTN function
WIFI_IOT_IO_FUNC_GPIO_2_PWM2_OUT	PWM2 OUT function
WIFI_IOT_IO_FUNC_GPIO_2_SSI_CLK	SSI CLK function

## WifiIotIoFuncGpio3 ``` enum [WifiIotIoFuncGpio3](Wifiiot.md#gaca745c98fc2ef9994e67444c9aa53db8) ``` **Description:** Enumerates the functions of GPIO hardware pin 3.

Enumerator	Description
WIFI_IOT_IO_FUNC_GPIO_3_GPIO	GPIO3 function
WIFI_IOT_IO_FUNC_GPIO_3_UART0_TXD	UART0 TXD function
WIFI_IOT_IO_FUNC_GPIO_3_UART1_CTS_N	UART1 CTS function
WIFI_IOT_IO_FUNC_GPIO_3_SPI1_CSN	SPI CSN function
WIFI_IOT_IO_FUNC_GPIO_3_JTAG_TDI	JTAG TDI function
WIFI_IOT_IO_FUNC_GPIO_3_PWM5_OUT	PWM5 OUT function
WIFI_IOT_IO_FUNC_GPIO_3_I2C1_SDA	I2C1 SDA function
WIFI_IOT_IO_FUNC_GPIO_3_SSI_DATA	SSI DATA function

## WifiIotIoFuncGpio4 ``` enum [WifiIotIoFuncGpio4](Wifiiot.md#ga70218b6740d703737739ce4372e2f1e2) ``` **Description:** Enumerates the functions of GPIO hardware pin 4.

Enumerator	Description
WIFI_IOT_IO_FUNC_GPIO_4_GPIO	GPIO4 function
WIFI_IOT_IO_FUNC_GPIO_4_UART0_RXD	UART0 RXD function
WIFI_IOT_IO_FUNC_GPIO_4_JTAG_TMS	JTAG TMS function
WIFI_IOT_IO_FUNC_GPIO_4_PWM1_OUT	PWM1 OUT function
WIFI_IOT_IO_FUNC_GPIO_4_I2C1_SCL	I2C1 SCL function

## WifiIotIoFuncGpio5 ``` enum [WifiIotIoFuncGpio5](Wifiiot.md#ga6cbed71f3a94f8e7513c4b91ae1e54ce) ``` **Description:** Enumerates the functions of GPIO hardware pin 5.

Enumerator	Description
WIFI_IOT_IO_FUNC_GPIO_5_GPIO	GPIO5 function
WIFI_IOT_IO_FUNC_GPIO_5_UART1_RXD	UART1 RXD function
WIFI_IOT_IO_FUNC_GPIO_5_SPI0_CSN	SPI0 CSN function
WIFI_IOT_IO_FUNC_GPIO_5_PWM2_OUT	PWM2 OUT function
WIFI_IOT_IO_FUNC_GPIO_5_I2S0_MCLK	I2C0 MCLK function
WIFI_IOT_IO_FUNC_GPIO_5_BT_STATUS	BT STATUS function

## WifiIotIoFuncGpio6 ``` enum [WifiIotIoFuncGpio6](Wifiiot.md#ga42008386d7791b97dbfa1fa6b6c4dc1d) ``` **Description:** Enumerates the functions of GPIO hardware pin 6.

Enumerator	Description
WIFI_IOT_IO_FUNC_GPIO_6_GPIO	GPIO6 function
WIFI_IOT_IO_FUNC_GPIO_6_UART1_TXD	UART1 TXD function
WIFI_IOT_IO_FUNC_GPIO_6_SPI0_CK	SPI0 CK function
WIFI_IOT_IO_FUNC_GPIO_6_PWM3_OUT	PWM3 OUT function
WIFI_IOT_IO_FUNC_GPIO_6_I2S0_TX	I2S0 TX function
WIFI_IOT_IO_FUNC_GPIO_6_COEX_SWITCH	COEX switch function

## WifiIotIoFuncGpio7 ``` enum [WifiIotIoFuncGpio7](Wifiiot.md#gac66dc390f39e0933c051790b20552b7c) ``` **Description:** Enumerates the functions of GPIO hardware pin 7.

Enumerator	Description
WIFI_IOT_IO_FUNC_GPIO_7_GPIO	GPIO7 function
WIFI_IOT_IO_FUNC_GPIO_7_UART1_CTS_N	UART1 CTS function
WIFI_IOT_IO_FUNC_GPIO_7_SPI0_RXD	SPI0 RXD function
WIFI_IOT_IO_FUNC_GPIO_7_PWM0_OUT	PWM0 OUT function
WIFI_IOT_IO_FUNC_GPIO_7_I2S0_BCLK	I2S0 BCLK function
WIFI_IOT_IO_FUNC_GPIO_7_BT_ACTIVE	BT ACTIVE function

## WifiIotIoFuncGpio8 ``` enum [WifiIotIoFuncGpio8](Wifiiot.md#gae63cd3d5c677fac3b01a3c67e8faf0fb) ``` **Description:** Enumerates the functions of GPIO hardware pin 8.

Enumerator	Description
WIFI_IOT_IO_FUNC_GPIO_8_GPIO	GPIO8 function
WIFI_IOT_IO_FUNC_GPIO_8_UART1_RTS_N	UART1 RTS function
WIFI_IOT_IO_FUNC_GPIO_8_SPI0_TXD	SPI0 TXD function
WIFI_IOT_IO_FUNC_GPIO_8_PWM1_OUT	PWM1 OUT function
WIFI_IOT_IO_FUNC_GPIO_8_I2S0_WS	I2S0 WS function
WIFI_IOT_IO_FUNC_GPIO_8_WLAN_ACTIVE	WLAN ACTIVE function

## WifiIotIoFuncGpio9 ``` enum [WifiIotIoFuncGpio9](Wifiiot.md#ga641da9889bd5a8a758e1a4eb2a5a19e4) ``` **Description:** Enumerates the functions of GPIO hardware pin 9.

Enumerator	Description
WIFI_IOT_IO_FUNC_GPIO_9_GPIO	GPIO9 function
WIFI_IOT_IO_FUNC_GPIO_9_I2C0_SCL	I2C0 SCL function
WIFI_IOT_IO_FUNC_GPIO_9_UART2_RTS_N	UART2 RTS function
WIFI_IOT_IO_FUNC_GPIO_9_SDIO_D2	SDIO D2 function
WIFI_IOT_IO_FUNC_GPIO_9_SPI0_TXD	SPI0 TXD function
WIFI_IOT_IO_FUNC_GPIO_9_PWM0_OUT	PWM0 OUT function
WIFI_IOT_IO_FUNC_GPIO_9_I2S0_MCLK	I2S0 MCLK function

## WifiIotIoName ``` enum [WifiIotIoName](Wifiiot.md#ga2f42c70f1dd8a04746e30a97b3dfc415) ``` **Description:** Enumerates GPIO hardware pin IDs.

Enumerator	Description
WIFI_IOT_IO_NAME_GPIO_0	GPIO hardware pin 0
WIFI_IOT_IO_NAME_GPIO_1	GPIO hardware pin 1
WIFI_IOT_IO_NAME_GPIO_2	GPIO hardware pin 2
WIFI_IOT_IO_NAME_GPIO_3	GPIO hardware pin 3
WIFI_IOT_IO_NAME_GPIO_4	GPIO hardware pin 4
WIFI_IOT_IO_NAME_GPIO_5	GPIO hardware pin 5
WIFI_IOT_IO_NAME_GPIO_6	GPIO hardware pin 6
WIFI_IOT_IO_NAME_GPIO_7	GPIO hardware pin 7
WIFI_IOT_IO_NAME_GPIO_8	GPIO hardware pin 8
WIFI_IOT_IO_NAME_GPIO_9	GPIO hardware pin 9
WIFI_IOT_IO_NAME_GPIO_10	GPIO hardware pin 10
WIFI_IOT_IO_NAME_GPIO_11	GPIO hardware pin 11
WIFI_IOT_IO_NAME_GPIO_12	GPIO hardware pin 12
WIFI_IOT_IO_NAME_GPIO_13	GPIO hardware pin 13
WIFI_IOT_IO_NAME_GPIO_14	GPIO hardware pin 14
WIFI_IOT_IO_NAME_MAX	Maximum value

## WifiIotIoPull ``` enum [WifiIotIoPull](Wifiiot.md#gacc20a5c6456ec381ed931232c29d1c4f) ``` **Description:** Enumerates GPIO pull-up or pull-down settings.

Enumerator	Description
WIFI_IOT_IO_PULL_NONE	No pull
WIFI_IOT_IO_PULL_UP	Pull-up
WIFI_IOT_IO_PULL_DOWN	Pull-down
WIFI_IOT_IO_PULL_MAX	Maximum value

## WifiIotPwmClkSource ``` enum [WifiIotPwmClkSource](Wifiiot.md#ga2ecbd0ab9636fedd354de7447056df29) ``` **Description:** Enumerates PWM clock sources.

Enumerator	Description
WIFI_IOT_PWM_CLK_160M	160 MHz working clock
WIFI_IOT_PWM_CLK_XTAL	24 MHz or 40 MHz external crystal
WIFI_IOT_PWM_CLK_MAX	Maximum value

## WifiIotPwmPort ``` enum [WifiIotPwmPort](Wifiiot.md#gab3518ce878df4a40d614e88a6f81dea7) ``` **Description:** Enumerates PWM ports.

Enumerator	Description
WIFI_IOT_PWM_PORT_PWM0	PWM0
WIFI_IOT_PWM_PORT_PWM1	PWM1
WIFI_IOT_PWM_PORT_PWM2	PWM2
WIFI_IOT_PWM_PORT_PWM3	PWM3
WIFI_IOT_PWM_PORT_PWM4	PWM4
WIFI_IOT_PWM_PORT_PWM5	PWM5
WIFI_IOT_PWM_PORT_MAX	Maximum value

## WifiIotSpiCfgClockCpha ``` enum [WifiIotSpiCfgClockCpha](Wifiiot.md#ga1eb13cffbbdec9da1d57c766763b94e5) ``` **Description:** Enumerates communication phases.

Enumerator	Description
WIFI_IOT_SPI_CFG_CLOCK_CPHA_0	Phase 0
WIFI_IOT_SPI_CFG_CLOCK_CPHA_1	Phase 1

## WifiIotSpiCfgClockCpol ``` enum [WifiIotSpiCfgClockCpol](Wifiiot.md#gad6674c8b0989b6a329d5fd5ff0d5d750) ``` **Description:** Enumerates communication polarities.

Enumerator	Description
WIFI_IOT_SPI_CFG_CLOCK_CPOL_0	Polarity 0
WIFI_IOT_SPI_CFG_CLOCK_CPOL_1	Polarity 1

## WifiIotSpiCfgDataWidth ``` enum [WifiIotSpiCfgDataWidth](Wifiiot.md#ga6f2e44db2698c33b81bd6caa438a55ea) ``` **Description:** Enumerates the communication data width, that is, the number of valid bits in each frame.

Enumerator	Description
WIFI_IOT_SPI_CFG_DATA_WIDTH_E_4BIT	4 bits
WIFI_IOT_SPI_CFG_DATA_WIDTH_E_5BIT	5 bits
WIFI_IOT_SPI_CFG_DATA_WIDTH_E_6BIT	6 bits
WIFI_IOT_SPI_CFG_DATA_WIDTH_E_7BIT	7 bits
WIFI_IOT_SPI_CFG_DATA_WIDTH_E_8BIT	8 bits
WIFI_IOT_SPI_CFG_DATA_WIDTH_E_9BIT	9 bits
WIFI_IOT_SPI_CFG_DATA_WIDTH_E_10BIT	10 bits
WIFI_IOT_SPI_CFG_DATA_WIDTH_E_11BIT	11 bits
WIFI_IOT_SPI_CFG_DATA_WIDTH_E_12BIT	12 bits
WIFI_IOT_SPI_CFG_DATA_WIDTH_E_13BIT	13 bits
WIFI_IOT_SPI_CFG_DATA_WIDTH_E_14BIT	14 bits
WIFI_IOT_SPI_CFG_DATA_WIDTH_E_15BIT	15 bits
WIFI_IOT_SPI_CFG_DATA_WIDTH_E_16BIT	16 bits

## WifiIotSpiCfgEndian ``` enum [WifiIotSpiCfgEndian](Wifiiot.md#ga31924085df23a024413fa6e63e13c41e) ``` **Description:** Enumerates the endian mode of each frame.

Enumerator	Description
WIFI_IOT_SPI_CFG_ENDIAN_LITTLE	Little-endian
WIFI_IOT_SPI_CFG_ENDIAN_BIG	Big-endian

## WifiIotSpiCfgFramMode ``` enum [WifiIotSpiCfgFramMode](Wifiiot.md#gaef7c192e049db14e2326c0bfba181670) ``` **Description:** Enumerates communication protocols.

Enumerator	Description
WIFI_IOT_SPI_CFG_FRAM_MODE_MOTOROLA	Motorola protocol
WIFI_IOT_SPI_CFG_FRAM_MODE_TI	Texas Instruments protocol
WIFI_IOT_SPI_CFG_FRAM_MODE_MICROWIRE	Microwire protocol

## WifiIotSpiIdx ``` enum [WifiIotSpiIdx](Wifiiot.md#ga1d095e78d92cdf2ffc5e34443726e44b) ``` **Description:** Enumerates SPI channel IDs.

Enumerator	Description
WIFI_IOT_SPI_ID_0	Channel 0
WIFI_IOT_SPI_ID_1	Channel 1

## WifiIotUartBlockState ``` enum [WifiIotUartBlockState](Wifiiot.md#ga93f35a58dc54e29d4892d1e94179c72d) ``` **Description:** Enumerates UART block states.

Enumerator	Description
WIFI_IOT_UART_BLOCK_STATE_NONE_BLOCK	Block disabled
WIFI_IOT_UART_BLOCK_STATE_BLOCK	Block enabled

## WifiIotUartDmaState ``` enum [WifiIotUartDmaState](Wifiiot.md#gaf36ed6a640d85e79dfee020131e0d86f) ``` **Description:** Enumerates UART DMA states.

Enumerator	Description
WIFI_IOT_UART_NONE_DMA	DMA disabled
WIFI_IOT_UART_USE_DMA	DMA enabled

## WifiIotUartFifoLine ``` enum [WifiIotUartFifoLine](Wifiiot.md#ga1c15f86994b472d35bee5d6b57d42a49) ``` **Description:** Enumerates UART FIFO interrupt thresholds.

Enumerator	Description
WIFI_IOT_FIFO_LINE_ONE_EIGHT	FIFO = 1/8 full
WIFI_IOT_FIFO_LINE_ONE_QUARTER	FIFO = 1/4 full
WIFI_IOT_FIFO_LINE_HALF	FIFO = 1/2 full
WIFI_IOT_FIFO_LINE_THREE_QUARTERS	FIFO = 3/4 full
WIFI_IOT_FIFO_LINE_SEVEN_EIGHTS	FIFO = 7/8 full

## WifiIotUartIdx ``` enum [WifiIotUartIdx](Wifiiot.md#ga2699252424e5469ef243ae279a263c44) ``` **Description:** Enumerates the UART serial number.

Enumerator	Description
WIFI_IOT_UART_IDX_0	Physical port 0
WIFI_IOT_UART_IDX_1	Physical port 1
WIFI_IOT_UART_IDX_2	Physical port 2
WIFI_IOT_UART_IDX_MAX	Maximum value

## WifiIotUartIdxDataBit ``` enum [WifiIotUartIdxDataBit](Wifiiot.md#gafdf1adfc0e0ed18282aa3006300b12b4) ``` **Description:** Enumerates the number of UART data bits.

Enumerator	Description
WIFI_IOT_UART_DATA_BIT_5	5 data bits
WIFI_IOT_UART_DATA_BIT_6	6 data bits
WIFI_IOT_UART_DATA_BIT_7	7 data bits
WIFI_IOT_UART_DATA_BIT_8	8 data bits

## WifiIotUartParity ``` enum [WifiIotUartParity](Wifiiot.md#ga9cee98ab295d2e42ab7f0fb614268602) ``` **Description:** Enumerates the UART parity bit.

Enumerator	Description
WIFI_IOT_UART_PARITY_NONE	No parity
WIFI_IOT_UART_PARITY_ODD	Odd parity
WIFI_IOT_UART_PARITY_EVEN	Even parity

## WifiIotUartStopBit ``` enum [WifiIotUartStopBit](Wifiiot.md#gab0a1b43e8e98b028717e6557003b3172) ``` **Description:** Enumerates the number of UART stop bits.

Enumerator	Description
WIFI_IOT_UART_STOP_BIT_1	1 stop bit
WIFI_IOT_UART_STOP_BIT_2	2 stop bit

## **Function Documentation** ## AdcRead\(\) ``` unsigned int AdcRead ([WifiIotAdcChannelIndex](Wifiiot.md#ga4c8b663163c7b23071914947a2bca73b) channel, unsigned short * data, [WifiIotAdcEquModelSel](Wifiiot.md#gafb9992ebf1655f994dc56883c8fe4b2e) equModel, [WifiIotAdcCurBais](Wifiiot.md#gaac161eb7075f815f6d39a63615bfa82d) curBais, unsigned short rstCnt ) ``` **Description:** Reads a piece of sampled data from a specified ADC channel based on the input parameters. **Parameters:**

Name	Description
channel	Indicates the ADC channel index.
data	Indicates the pointer to the address for storing the read data.
equModel	Indicates the equation model.
curBais	Indicates the analog power control mode.
rstCnt	Indicates the count of the time from reset to conversion start. One count is equal to 334 ns. The value must range from 0 to 0xFF0.

**Returns:** Returns [WIFI\_IOT\_SUCCESS](Wifiiot.md#gae70eaf627c0370cc271dcb8060aee861) if the operation is successful; returns an error code defined in [wifiiot\_errno.h](wifiiot_errno-h.md) otherwise. ## AtCheckUartBusy\(\) ``` void AtCheckUartBusy (unsigned char enable) ``` **Description:** Sets whether to check the UART busy status during low-power voting. This function determines whether to check the UART status before the device enters the low-power mode. If **enable** is set to **1** and the UART is found to be busy, the device does not enter the low-power mode. In other scenarios, the device enters the low-power mode. **Parameters:**

Name	Description
enable	Specifies whether to check the UART busy status. The value 1 means to check the UART busy status, and 0 means not to check the busy status.

## AtInit\(\) ``` unsigned int AtInit (void ) ``` **Description:** Initializes an AT command task. **Returns:** Returns [WIFI\_IOT\_SUCCESS](Wifiiot.md#gae70eaf627c0370cc271dcb8060aee861) if the operation is successful; returns an error code defined in [wifiiot\_errno.h](wifiiot_errno-h.md) otherwise. ## AtPrintf\(\) ``` int AtPrintf (const char * fmt, ... ) ``` **Description:** Formats data and outputs it to the AT command terminal. **Parameters:**

Name	Description
fmt	Indicates the pointer to the control character string to format.
...	Represents a variable parameter list in the character string format.

**Returns:** Returns the number of bytes \(excluding the end character\) output to the AT command terminal if the operation is successful; returns **-1** otherwise. ## AtRegisterCmd\(\) ``` unsigned int AtRegisterCmd (const [AtCmdTbl](AtCmdTbl.md) * cmdTbl, unsigned short cmdNum ) ``` **Description:** Registers a certain number of AT commands. **Parameters:**

Name	Description
cmdTbl	Indicates the command table.
cmdNum	Indicates the number of AT commands in the command table.

**Returns:** Returns [WIFI\_IOT\_SUCCESS](Wifiiot.md#gae70eaf627c0370cc271dcb8060aee861) if the operation is successful; returns an error code defined in [wifiiot\_errno.h](wifiiot_errno-h.md) otherwise. ## AtSysCmdRegister\(\) ``` void AtSysCmdRegister (void ) ``` **Description:** Registers a system AT command. For example, you can use this function to register the AT+RST command, which is a system AT command used to reset a device. ## FlashDeinit\(\) ``` unsigned int FlashDeinit (void ) ``` **Description:** Deinitializes the flash device. **Returns:** Returns [WIFI\_IOT\_SUCCESS](Wifiiot.md#gae70eaf627c0370cc271dcb8060aee861) if the operation is successful; returns an error code defined in [wifiiot\_errno.h](wifiiot_errno-h.md) otherwise. ## FlashErase\(\) ``` unsigned int FlashErase (const unsigned int flashOffset, const unsigned int size ) ``` **Description:** Erases data in a specified flash memory address. **Parameters:**

Name	Description
flashOffset	Indicates the address of the flash memory data to erase.
size	Indicates the length of the data to erase, in bytes. The value must be a multiple of 4000 bytes.

Name	Description
cmd	Indicates the command ID. The value 0 indicates an attempt to obtain flash partition information, and 1 indicates an attempt to obtain the flash busy status.
data	Indicates the pointer to the memory where the obtained information will be saved.

**Returns:** Returns [WIFI\_IOT\_SUCCESS](Wifiiot.md#gae70eaf627c0370cc271dcb8060aee861) if the flash information is obtained; returns an error code defined in [wifiiot\_errno.h](wifiiot_errno-h.md) otherwise. ## FlashPartitionInit\(\) ``` unsigned int FlashPartitionInit (void ) ``` **Description:** Initializes a flash partition. **Returns:** Returns [WIFI\_IOT\_SUCCESS](Wifiiot.md#gae70eaf627c0370cc271dcb8060aee861) if the operation is successful; returns an error code defined in [wifiiot\_errno.h](wifiiot_errno-h.md) otherwise. ## FlashRead\(\) ``` unsigned int FlashRead (const unsigned int flashOffset, const unsigned int size, unsigned char * ramData ) ``` **Description:** Reads data from a flash memory address. This function reads a specified length of data from a specified flash memory address. **Parameters:**

Name	Description
flashOffset	Indicates the address of the flash memory from which data is to read.
size	Indicates the length of the data to read.
ramData	Indicates the pointer to the RAM for storing the read data.

**Returns:** Returns [WIFI\_IOT\_SUCCESS](Wifiiot.md#gae70eaf627c0370cc271dcb8060aee861) if the operation is successful; returns an error code defined in [wifiiot\_errno.h](wifiiot_errno-h.md) otherwise. ## FlashWrite\(\) ``` unsigned int FlashWrite (const unsigned int flashOffset, unsigned int size, const unsigned char * ramData, unsigned char doErase ) ``` **Description:** Writes data to a flash memory address. This function writes a specified length of data to a specified flash memory address. **Parameters:**

Name	Description
flashOffset	Indicates the address of the flash memory to which data is to write.
size	Indicates the length of the data to write.
ramData	Indicates the pointer to the RAM for storing the data to write.
doErase	Indicates whether to automatically erase and overwrite the data.

**Returns:** Returns [WIFI\_IOT\_SUCCESS](Wifiiot.md#gae70eaf627c0370cc271dcb8060aee861) if the operation is successful; returns an error code defined in [wifiiot\_errno.h](wifiiot_errno-h.md) otherwise. ## GetPartitionTable\(\) ``` [WifiIotFlashPartitionTable](WifiIotFlashPartitionTable.md)* GetPartitionTable (void ) ``` **Description:** Obtains a flash partition table. **Returns:** Returns the pointer to the partition table. ## GpioDeinit\(\) ``` unsigned int GpioDeinit (void ) ``` **Description:** Deinitializes the GPIO device. **Returns:** Returns [WIFI\_IOT\_SUCCESS](Wifiiot.md#gae70eaf627c0370cc271dcb8060aee861) if the operation is successful; returns an error code defined in [wifiiot\_errno.h](wifiiot_errno-h.md) otherwise. ## GpioGetDir\(\) ``` unsigned int GpioGetDir ([WifiIotGpioIdx](Wifiiot.md#gacb21f234cf149161f1f95f3330eeb8e7) id, [WifiIotGpioDir](Wifiiot.md#gab4b1fb50c758d491ba297a65e1c7a70a) * dir ) ``` **Description:** Obtains the direction for a GPIO pin. **Parameters:**

Name	Description
id	Indicates the GPIO pin ID.
dir	Indicates the pointer to the GPIO input/output direction.

**Returns:** Returns [WIFI\_IOT\_SUCCESS](Wifiiot.md#gae70eaf627c0370cc271dcb8060aee861) if the operation is successful; returns an error code defined in [wifiiot\_errno.h](wifiiot_errno-h.md) otherwise. ## GpioGetInputVal\(\) ``` unsigned int GpioGetInputVal ([WifiIotGpioIdx](Wifiiot.md#gacb21f234cf149161f1f95f3330eeb8e7) id, [WifiIotGpioValue](Wifiiot.md#gac9095d1db72e5046b2ec1895aaec0e6b) * val ) ``` **Description:** Obtains the input level value of a GPIO pin. **Parameters:**

Name	Description
id	Indicates the GPIO pin ID.
val	Indicates the pointer to the input level value.

**Returns:** Returns [WIFI\_IOT\_SUCCESS](Wifiiot.md#gae70eaf627c0370cc271dcb8060aee861) if the operation is successful; returns an error code defined in [wifiiot\_errno.h](wifiiot_errno-h.md) otherwise. ## GpioGetOutputVal\(\) ``` unsigned int GpioGetOutputVal ([WifiIotGpioIdx](Wifiiot.md#gacb21f234cf149161f1f95f3330eeb8e7) id, [WifiIotGpioValue](Wifiiot.md#gac9095d1db72e5046b2ec1895aaec0e6b) * val ) ``` **Description:** Obtains the output level value of a GPIO pin. **Parameters:**

Name	Description
id	Indicates the GPIO pin ID.
val	Indicates the pointer to the output level value.

**Returns:** Returns [WIFI\_IOT\_SUCCESS](Wifiiot.md#gae70eaf627c0370cc271dcb8060aee861) if the operation is successful; returns an error code defined in [wifiiot\_errno.h](wifiiot_errno-h.md) otherwise. ## GpioInit\(\) ``` unsigned int GpioInit (void ) ``` **Description:** Initializes the GPIO device. **Returns:** Returns [WIFI\_IOT\_SUCCESS](Wifiiot.md#gae70eaf627c0370cc271dcb8060aee861) if the operation is successful; returns an error code defined in [wifiiot\_errno.h](wifiiot_errno-h.md) otherwise. ## GpioRegisterIsrFunc\(\) ``` unsigned int GpioRegisterIsrFunc ([WifiIotGpioIdx](Wifiiot.md#gacb21f234cf149161f1f95f3330eeb8e7) id, [WifiIotGpioIntType](Wifiiot.md#gac8eb8ad448903ed52c96ccc675e81f94) intType, [WifiIotGpioIntPolarity](Wifiiot.md#gab81589838cedcc3933bb789c97ad3643) intPolarity, [GpioIsrCallbackFunc](Wifiiot.md#ga93120443d8150e18701ce6d3dd290408) func, char * arg ) ``` **Description:** Enables the interrupt function for a GPIO pin. This function can be used to set the interrupt type, interrupt polarity, and interrupt callback for a GPIO pin. **Parameters:**

Name	Description
id	Indicates the GPIO pin ID.
intType	Indicates the interrupt type.
intPolarity	Indicates the interrupt polarity.
func	Indicates the interrupt callback function.
arg	Indicates the pointer to the argument used in the interrupt callback function.

**Returns:** Returns [WIFI\_IOT\_SUCCESS](Wifiiot.md#gae70eaf627c0370cc271dcb8060aee861) if the operation is successful; returns an error code defined in [wifiiot\_errno.h](wifiiot_errno-h.md) otherwise. ## GpioSetDir\(\) ``` unsigned int GpioSetDir ([WifiIotGpioIdx](Wifiiot.md#gacb21f234cf149161f1f95f3330eeb8e7) id, [WifiIotGpioDir](Wifiiot.md#gab4b1fb50c758d491ba297a65e1c7a70a) dir ) ``` **Description:** Sets the direction for a GPIO pin. **Parameters:**

Name	Description
id	Indicates the GPIO pin ID.
dir	Indicates the GPIO input/output direction.

**Returns:** Returns [WIFI\_IOT\_SUCCESS](Wifiiot.md#gae70eaf627c0370cc271dcb8060aee861) if the operation is successful; returns an error code defined in [wifiiot\_errno.h](wifiiot_errno-h.md) otherwise. ## GpioSetIsrMask\(\) ``` unsigned int GpioSetIsrMask ([WifiIotGpioIdx](Wifiiot.md#gacb21f234cf149161f1f95f3330eeb8e7) id, unsigned char mask ) ``` **Description:** Masks the interrupt function for a GPIO pin. **Parameters:**

Name	Description
id	Indicates the GPIO pin ID.
mask	Indicates whether the interrupt function is masked. The value 1 means to mask the interrupt function, and 0 means not to mask the interrupt function.

**Returns:** Returns [WIFI\_IOT\_SUCCESS](Wifiiot.md#gae70eaf627c0370cc271dcb8060aee861) if the operation is successful; returns an error code defined in [wifiiot\_errno.h](wifiiot_errno-h.md) otherwise. ## GpioSetIsrMode\(\) ``` unsigned int GpioSetIsrMode ([WifiIotGpioIdx](Wifiiot.md#gacb21f234cf149161f1f95f3330eeb8e7) id, [WifiIotGpioIntType](Wifiiot.md#gac8eb8ad448903ed52c96ccc675e81f94) intType, [WifiIotGpioIntPolarity](Wifiiot.md#gab81589838cedcc3933bb789c97ad3643) intPolarity ) ``` **Description:** Sets the interrupt trigger mode of a GPIO pin. This function configures a GPIO pin based on the interrupt type and interrupt polarity. **Parameters:**

Name	Description
id	Indicates the GPIO pin ID.
intType	Indicates the interrupt type.
intPolarity	Indicates the interrupt polarity.

**Returns:** Returns [WIFI\_IOT\_SUCCESS](Wifiiot.md#gae70eaf627c0370cc271dcb8060aee861) if the operation is successful; returns an error code defined in [wifiiot\_errno.h](wifiiot_errno-h.md) otherwise. ## GpioSetOutputVal\(\) ``` unsigned int GpioSetOutputVal ([WifiIotGpioIdx](Wifiiot.md#gacb21f234cf149161f1f95f3330eeb8e7) id, [WifiIotGpioValue](Wifiiot.md#gac9095d1db72e5046b2ec1895aaec0e6b) val ) ``` **Description:** Sets the output level value for a GPIO pin. **Parameters:**

Name	Description
id	Indicates the GPIO pin ID.
val	Indicates the output level value.

**Returns:** Returns [WIFI\_IOT\_SUCCESS](Wifiiot.md#gae70eaf627c0370cc271dcb8060aee861) if the operation is successful; returns an error code defined in [wifiiot\_errno.h](wifiiot_errno-h.md) otherwise. ## GpioUnregisterIsrFunc\(\) ``` unsigned int GpioUnregisterIsrFunc ([WifiIotGpioIdx](Wifiiot.md#gacb21f234cf149161f1f95f3330eeb8e7) id) ``` **Description:** Disables the interrupt function for a GPIO pin. **Parameters:**

Name	Description
id	Indicates the GPIO pin ID.

**Returns:** Returns [WIFI\_IOT\_SUCCESS](Wifiiot.md#gae70eaf627c0370cc271dcb8060aee861) if the operation is successful; returns an error code defined in [wifiiot\_errno.h](wifiiot_errno-h.md) otherwise. ## I2cDeinit\(\) ``` unsigned int I2cDeinit ([WifiIotI2cIdx](Wifiiot.md#gaeeb58e02e3783d02e1ed4bad313cc0b8) id) ``` **Description:** Deinitializes an I2C device. **Parameters:**

Name	Description
id	Indicates the I2C device ID.

**Returns:** Returns [WIFI\_IOT\_SUCCESS](Wifiiot.md#gae70eaf627c0370cc271dcb8060aee861) if the operation is successful; returns an error code defined in [wifiiot\_errno.h](wifiiot_errno-h.md) otherwise. ## I2cInit\(\) ``` unsigned int I2cInit ([WifiIotI2cIdx](Wifiiot.md#gaeeb58e02e3783d02e1ed4bad313cc0b8) id, unsigned int baudrate ) ``` **Description:** Initializes an I2C device with a specified baud rate. **Parameters:**

Name	Description
id	Indicates the I2C device ID.
baudrate	Indicates the I2C baud rate.

**Returns:** Returns [WIFI\_IOT\_SUCCESS](Wifiiot.md#gae70eaf627c0370cc271dcb8060aee861) if the operation is successful; returns an error code defined in [wifiiot\_errno.h](wifiiot_errno-h.md) otherwise. ## I2cRead\(\) ``` unsigned int I2cRead ([WifiIotI2cIdx](Wifiiot.md#gaeeb58e02e3783d02e1ed4bad313cc0b8) id, unsigned short deviceAddr, const [WifiIotI2cData](WifiIotI2cData.md) * i2cData ) ``` **Description:** Reads data from an I2C device. The data read will be saved to the address specified by **i2cData**. **Parameters:**

Name	Description
id	Indicates the I2C device ID.
deviceAddr	Indicates the I2C device address.
i2cData	Indicates the pointer to the data descriptor to read.

**Returns:** Returns [WIFI\_IOT\_SUCCESS](Wifiiot.md#gae70eaf627c0370cc271dcb8060aee861) if the operation is successful; returns an error code defined in [wifiiot\_errno.h](wifiiot_errno-h.md) otherwise. ## I2cRegisterResetBusFunc\(\) ``` void I2cRegisterResetBusFunc ([WifiIotI2cIdx](Wifiiot.md#gaeeb58e02e3783d02e1ed4bad313cc0b8) id, [WifiIotI2cFunc](WifiIotI2cFunc.md) pfn ) ``` **Description:** Registers an I2C callback. **Parameters:**

Name	Description
id	Indicates the I2C device ID.
pfn	Indicates the type of the callback to register.

## I2cSetBaudrate\(\) ``` unsigned int I2cSetBaudrate ([WifiIotI2cIdx](Wifiiot.md#gaeeb58e02e3783d02e1ed4bad313cc0b8) id, unsigned int baudrate ) ``` **Description:** Sets the baud rate for an I2C device. **Parameters:**

Name	Description
id	Indicates the I2C device ID.
baudrate	Indicates the I2C baud rate to set.

**Returns:** Returns [WIFI\_IOT\_SUCCESS](Wifiiot.md#gae70eaf627c0370cc271dcb8060aee861) if the operation is successful; returns an error code defined in [wifiiot\_errno.h](wifiiot_errno-h.md) otherwise. ## I2cWrite\(\) ``` unsigned int I2cWrite ([WifiIotI2cIdx](Wifiiot.md#gaeeb58e02e3783d02e1ed4bad313cc0b8) id, unsigned short deviceAddr, const [WifiIotI2cData](WifiIotI2cData.md) * i2cData ) ``` **Description:** Writes data to an I2C device. **Parameters:**

Name	Description
id	Indicates the I2C device ID.
deviceAddr	Indicates the I2C device address.
i2cData	Indicates the pointer to the data descriptor to write.

**Returns:** Returns [WIFI\_IOT\_SUCCESS](Wifiiot.md#gae70eaf627c0370cc271dcb8060aee861) if the operation is successful; returns an error code defined in [wifiiot\_errno.h](wifiiot_errno-h.md) otherwise. ## I2cWriteread\(\) ``` unsigned int I2cWriteread ([WifiIotI2cIdx](Wifiiot.md#gaeeb58e02e3783d02e1ed4bad313cc0b8) id, unsigned short deviceAddr, const [WifiIotI2cData](WifiIotI2cData.md) * i2cData ) ``` **Description:** Sends data to and receives data responses from an I2C device. **Parameters:**

Name	Description
id	Indicates the I2C device ID.
deviceAddr	Indicates the I2C device address.
i2cData	Indicates the pointer to the device descriptor of the data to receive.

Name	Description
i2sAttribute	Indicates the pointer to the I2S configuration parameter.

**Returns:** Returns [WIFI\_IOT\_SUCCESS](Wifiiot.md#gae70eaf627c0370cc271dcb8060aee861) if the operation is successful; returns an error code defined in [wifiiot\_errno.h](wifiiot_errno-h.md) otherwise. ## I2sRead\(\) ``` unsigned int I2sRead (unsigned char * rdData, unsigned int rdLen, unsigned int timeOutMs ) ``` **Description:** Reads data from the I2S device. This function reads data with the length specified by **rdLen** from an I2S device within the duration specified by **timeOutMs**. **Parameters:**

Name	Description
rdData	Indicates the pointer to the data to read.
rdLen	Indicates the length of the data to read.
timeOutMs	Indicates the timeout interval.

**Returns:** Returns [WIFI\_IOT\_SUCCESS](Wifiiot.md#gae70eaf627c0370cc271dcb8060aee861) if the operation is successful; returns an error code defined in [wifiiot\_errno.h](wifiiot_errno-h.md) otherwise. ## I2sWrite\(\) ``` unsigned int I2sWrite (unsigned char * wrData, unsigned int wrLen, unsigned int timeOutMs ) ``` **Description:** Writes data to the I2S device. This function writes data with the length specified by **wrLen** to an I2S device within the duration specified by **timeOutMs**. **Parameters:**

Name	Description
wrData	Indicates the pointer to the data to write.
wrLen	Indicates the length of the data to write.
timeOutMs	Indicates the timeout interval.

**Returns:** Returns [WIFI\_IOT\_SUCCESS](Wifiiot.md#gae70eaf627c0370cc271dcb8060aee861) if the operation is successful; returns an error code defined in [wifiiot\_errno.h](wifiiot_errno-h.md) otherwise. ## IOGetDriverStrength\(\) ``` unsigned int IOGetDriverStrength ([WifiIotIoName](Wifiiot.md#ga2f42c70f1dd8a04746e30a97b3dfc415) id, [WifiIotIoDriverStrength](Wifiiot.md#gae97ab4109f511ceeee889dba9e79a968) * val ) ``` **Description:** Obtains the driver strength of a GPIO pin. **Parameters:**

Name	Description
id	Indicates the GPIO pin.
val	Indicates the pointer to the address where the I/O driver strength level is to be stored.

**Returns:** Returns [WIFI\_IOT\_SUCCESS](Wifiiot.md#gae70eaf627c0370cc271dcb8060aee861) if the operation is successful; returns an error code defined in [wifiiot\_errno.h](wifiiot_errno-h.md) otherwise. ## IoGetFunc\(\) ``` unsigned int IoGetFunc ([WifiIotIoName](Wifiiot.md#ga2f42c70f1dd8a04746e30a97b3dfc415) id, unsigned char * val ) ``` **Description:** Obtains the multiplexing function for a GPIO pin. **Parameters:**

Name	Description
id	Indicates the GPIO pin.
val	Indicates the pointer to the address whether I/O multiplexing function is to be stored. For example, if the value of id is WIFI_IOT_IO_NAME_GPIO_0, the value type of val is WifiIotIoFuncGpio0. If the value of id is WIFI_IOT_IO_NAME_GPIO_1, the value type of val is WifiIotIoFuncGpio1. The same rule applies to other values.

**Returns:** Returns [WIFI\_IOT\_SUCCESS](Wifiiot.md#gae70eaf627c0370cc271dcb8060aee861) if the operation is successful; returns an error code defined in [wifiiot\_errno.h](wifiiot_errno-h.md) otherwise. ## IoGetPull\(\) ``` unsigned int IoGetPull ([WifiIotIoName](Wifiiot.md#ga2f42c70f1dd8a04746e30a97b3dfc415) id, [WifiIotIoPull](Wifiiot.md#gacc20a5c6456ec381ed931232c29d1c4f) * val ) ``` **Description:** Obtains the pull type of a GPIO pin. **Parameters:**

Name	Description
id	Indicates the GPIO pin.
val	Indicates the pointer to the address where the pull type is to be stored.

**Returns:** Returns [WIFI\_IOT\_SUCCESS](Wifiiot.md#gae70eaf627c0370cc271dcb8060aee861) if the operation is successful; returns an error code defined in [wifiiot\_errno.h](wifiiot_errno-h.md) otherwise. ## IOSetDriverStrength\(\) ``` unsigned int IOSetDriverStrength ([WifiIotIoName](Wifiiot.md#ga2f42c70f1dd8a04746e30a97b3dfc415) id, [WifiIotIoDriverStrength](Wifiiot.md#gae97ab4109f511ceeee889dba9e79a968) val ) ``` **Description:** Sets the driver strength of a GPIO pin. **Parameters:**

Name	Description
id	Indicates the GPIO pin.
val	Indicates the I/O driver strength level obtained.

**Returns:** Returns [WIFI\_IOT\_SUCCESS](Wifiiot.md#gae70eaf627c0370cc271dcb8060aee861) if the operation is successful; returns an error code defined in [wifiiot\_errno.h](wifiiot_errno-h.md) otherwise. ## IoSetFunc\(\) ``` unsigned int IoSetFunc ([WifiIotIoName](Wifiiot.md#ga2f42c70f1dd8a04746e30a97b3dfc415) id, unsigned char val ) ``` **Description:** Sets the multiplexing function for a GPIO pin. **Parameters:**

Name	Description
id	Indicates the GPIO pin.
val	Indicates the I/O multiplexing function. For example, if the value of id is WIFI_IOT_IO_NAME_GPIO_0, the value type of val is WifiIotIoFuncGpio0. If the value of id is WIFI_IOT_IO_NAME_GPIO_1, the value type of val is WifiIotIoFuncGpio1. The same rule applies to other values.

**Returns:** Returns [WIFI\_IOT\_SUCCESS](Wifiiot.md#gae70eaf627c0370cc271dcb8060aee861) if the operation is successful; returns an error code defined in [wifiiot\_errno.h](wifiiot_errno-h.md) otherwise. ## IoSetPull\(\) ``` unsigned int IoSetPull ([WifiIotIoName](Wifiiot.md#ga2f42c70f1dd8a04746e30a97b3dfc415) id, [WifiIotIoPull](Wifiiot.md#gacc20a5c6456ec381ed931232c29d1c4f) val ) ``` **Description:** Sets the pull for a GPIO pin. **Parameters:**

Name	Description
id	Indicates the GPIO pin.
val	Indicates the pull-up or pull-down to set.

**Returns:** Returns [WIFI\_IOT\_SUCCESS](Wifiiot.md#gae70eaf627c0370cc271dcb8060aee861) if the operation is successful; returns an error code defined in [wifiiot\_errno.h](wifiiot_errno-h.md) otherwise. ## KalThreadRegisterIdleCallback\(\) ``` void KalThreadRegisterIdleCallback ([TickIdleKalCallback](Wifiiot.md#ga8be54bbf12f538188db10aaaf4bdbdf9) cb) ``` **Description:** Registers the idle task callback. **Parameters:**

Name	Description
cb	Indicates the idle task callback to register.

## KalTickRegisterCallback\(\) ``` void KalTickRegisterCallback ([TickIdleKalCallback](Wifiiot.md#ga8be54bbf12f538188db10aaaf4bdbdf9) cb) ``` **Description:** Registers the CPU tick callback. **Parameters:**

Name	Description
cb	Indicates the CPU tick callback to register.

## PwmDeinit\(\) ``` unsigned int PwmDeinit ([WifiIotPwmPort](Wifiiot.md#gab3518ce878df4a40d614e88a6f81dea7) port) ``` **Description:** Deinitializes a PWM device. **Parameters:**

Name	Description
port	Indicates the PWM port number.

**Returns:** Returns [WIFI\_IOT\_SUCCESS](Wifiiot.md#gae70eaf627c0370cc271dcb8060aee861) if the operation is successful; eturns an error code defined in [wifiiot\_errno.h](wifiiot_errno-h.md) otherwise. ## PwmInit\(\) ``` unsigned int PwmInit ([WifiIotPwmPort](Wifiiot.md#gab3518ce878df4a40d614e88a6f81dea7) port) ``` **Description:** Initializes a PWM device. **Parameters:**

Name	Description
port	Indicates the PWM port number.

**Returns:** Returns [WIFI\_IOT\_SUCCESS](Wifiiot.md#gae70eaf627c0370cc271dcb8060aee861) if the operation is successful; returns an error code defined in [wifiiot\_errno.h](wifiiot_errno-h.md) otherwise. ## PwmStart\(\) ``` unsigned int PwmStart ([WifiIotPwmPort](Wifiiot.md#gab3518ce878df4a40d614e88a6f81dea7) port, unsigned short duty, unsigned short freq ) ``` **Description:** Outputs PWM signals based on the input parameters. This function outputs PWM signals from a specified port based on the configured frequency division multiple and duty cycle. **Parameters:**

Name	Description
port	Indicates the PWM port number.
duty	Indicates the PWM duty cycle.
freq	Indicates the frequency-division multiple.

**Returns:** Returns [WIFI\_IOT\_SUCCESS](Wifiiot.md#gae70eaf627c0370cc271dcb8060aee861) if the operation is successful; returns an error code defined in [wifiiot\_errno.h](wifiiot_errno-h.md) otherwise. ## PwmStop\(\) ``` unsigned int PwmStop ([WifiIotPwmPort](Wifiiot.md#gab3518ce878df4a40d614e88a6f81dea7) port) ``` **Description:** Stops the PWM signal output. **Parameters:**

Name	Description
port	Indicates the PWM port number.

**Returns:** Returns [WIFI\_IOT\_SUCCESS](Wifiiot.md#gae70eaf627c0370cc271dcb8060aee861) if the operation is successful; returns an error code defined in [wifiiot\_errno.h](wifiiot_errno-h.md) otherwise. ## SdioCompleteSend\(\) ``` unsigned int SdioCompleteSend (unsigned char * admaTable, unsigned int admaIndex ) ``` **Description:** Completes data sending on the SDIO device. After data sending is complete, the SDIO device sets a complete flag for the ADMA ID **admaIndex** to indicate that the ADMA data between channel 0 and the complete flag is set. **Parameters:**

Name	Description
admaTable	Indicates the pointer to the start address of the ADMA table. Each ADMA table occupies 8 bytes.
admaIndex	Indicates the ADMA ID, ranging from 0 to 130.

**Returns:** Returns [WIFI\_IOT\_SUCCESS](Wifiiot.md#gae70eaf627c0370cc271dcb8060aee861) if the operation is successful; returns an error code defined in [wifiiot\_errno.h](wifiiot_errno-h.md) otherwise. ## SdioGetExtendInfo\(\) ``` [WifiIotSdioExtendFunc](WifiIotSdioExtendFunc.md)* SdioGetExtendInfo (void ) ``` **Description:** Obtains the extended configuration. **Returns:** Returns the pointer to the address of the extended configuration. ## SdioInit\(\) ``` unsigned int SdioInit (void ) ``` **Description:** Initializes the SDIO device. **Returns:** Returns [WIFI\_IOT\_SUCCESS](Wifiiot.md#gae70eaf627c0370cc271dcb8060aee861) if the operation is successful; returns an error code defined in [wifiiot\_errno.h](wifiiot_errno-h.md) otherwise. ## SdioIsPendingMsg\(\) ``` unsigned int SdioIsPendingMsg (unsigned int msg) ``` **Description:** Checks whether a specified message is suspended. **Parameters:**

Name	Description
msg	Indicates the ID of the message to check, ranging from 0 to 31.

**Returns:** Returns **1** if the message is suspended; returns **0** otherwise. ## SdioIsSendingMsg\(\) ``` unsigned int SdioIsSendingMsg (unsigned int msg) ``` **Description:** Checks whether a specified message is being sent. **Parameters:**

Name	Description
msg	Indicates the ID of the message to check, ranging from 0 to 31.

**Returns:** Returns **1** if the message is being sent; returns **0** otherwise. ## SdioProcessMsg\(\) ``` unsigned int SdioProcessMsg (unsigned int sendMsg, unsigned int clearMsg ) ``` **Description:** Clears a specified suspended message in the message queue, adds a new message to it, and sends the new message. **Parameters:**

Name	Description
sendMsg	Indicates the ID of the message to send, ranging from 0 to 31.
clearMsg	Indicates the ID of the message to clear, ranging from 0 to 31.

**Returns:** Returns **1** if the operation is successful; returns **0** otherwise. ## SdioRegisterCallback\(\) ``` unsigned int SdioRegisterCallback (const [WifiIotSdioIntcallback](WifiIotSdioIntcallback.md) * callbackFunc) ``` **Description:** Registers an interrupt callback for the SDIO device. **Parameters:**

Name	Description
callbackFunc	Indicates the pointer to the interrupt callback to register.

**Returns:** Returns [WIFI\_IOT\_SUCCESS](Wifiiot.md#gae70eaf627c0370cc271dcb8060aee861) if the operation is successful; returns an error code defined in [wifiiot\_errno.h](wifiiot_errno-h.md) otherwise. ## SdioRegisterNotifyMessageCallback\(\) ``` void SdioRegisterNotifyMessageCallback ([NotifyHostMessageEvent](Wifiiot.md#ga133bb67c0fa6e9dcab35f00edff68e58) msgEventCallback) ``` **Description:** Registers the callback that will be invoked when the host sends a message or data. **Parameters:**

Name	Description
msgEventCallback	Indicates the callback to be invoked when a message or data is sent.

## SdioReinit\(\) ``` unsigned int SdioReinit (void ) ``` **Description:** Reinitializes the SDIO device. **Returns:** Returns [WIFI\_IOT\_SUCCESS](Wifiiot.md#gae70eaf627c0370cc271dcb8060aee861) if the operation is successful; returns an error code defined in [wifiiot\_errno.h](wifiiot_errno-h.md) otherwise. ## SdioSchedMsg\(\) ``` unsigned int SdioSchedMsg (void ) ``` **Description:** Sends a suspended SDIO message. **Returns:** Returns **1** if no message is suspended or the suspended message is successfully sent; returns **0** if the SDIO device is not working or is sending messages. ## SdioSendData\(\) ``` void SdioSendData (unsigned int xferBytes) ``` **Description:** Starts to send data. Data with the length specified by **xferBytes** is ready for transmission. **Parameters:**

Name	Description
xferBytes	Indicates the length of the data to send.

## SdioSendMsgAck\(\) ``` unsigned int SdioSendMsgAck (unsigned int msg) ``` **Description:** Sends a specified message. **Parameters:**

Name	Description
msg	Indicates the ID of the message to send, ranging from 0 to 31.

**Returns:** Returns **1** if the operation is successful; returns **0** otherwise. ## SdioSendSyncMsg\(\) ``` unsigned int SdioSendSyncMsg (unsigned int msg) ``` **Description:** Adds a message to a message queue and sends the message. **Parameters:**

Name	Description
msg	Indicates the ID of the message to add to the message queue and send, ranging from 0 to 31.

**Returns:** Returns **1** if the operation is successful; returns **0** otherwise. ## SdioSetAdmatable\(\) ``` unsigned int SdioSetAdmatable (unsigned char * admatable, unsigned int admaIndex, const unsigned int * dataAddr, unsigned int dataLen ) ``` **Description:** Sets an SDIO ADMA. This function places a specified length of data into the ADMA with a specified ADMA ID **admaIndex**. **Parameters:**

Name	Description
admatable	Indicates the pointer to the start address of the ADMA table. Each ADMA table occupies 8 bytes.
admaIndex	Indicates the ADMA ID, ranging from 0 to 130.
dataAddr	Indicates the pointer to the address where data is to send.
dataLen	Indicates the length of the data to send.

**Returns:** Returns [WIFI\_IOT\_SUCCESS](Wifiiot.md#gae70eaf627c0370cc271dcb8060aee861) if the operation is successful; returns an error code defined in [wifiiot\_errno.h](wifiiot_errno-h.md) otherwise. ## SdioSetPadAdmatab\(\) ``` unsigned int SdioSetPadAdmatab (unsigned int padlen, unsigned char * admatable, unsigned int admaIndex ) ``` **Description:** Sets the ADMA table that requires data padding. **Parameters:**

Name	Description
padlen	Indicates the length of the data to pad.
admatable	Indicates the pointer to the start address of the ADMA table. Each ADMA table occupies 8 bytes.
admaIndex	Indicates the ADMA ID, ranging from 0 to 130.

**Returns:** Returns [WIFI\_IOT\_SUCCESS](Wifiiot.md#gae70eaf627c0370cc271dcb8060aee861) if the operation is successful; returns an error code defined in [wifiiot\_errno.h](wifiiot_errno-h.md) otherwise. ## SdioSetPowerdownWhenDeepSleep\(\) ``` void SdioSetPowerdownWhenDeepSleep (unsigned char powerDown) ``` **Description:** Sets whether the SDIO device is powered off in deep sleep mode. **Parameters:**

Name	Description
powerDown	Specifies whether to power off the SDIO device. The value 1 means to power it off, and 0 means not to power it off.

## SdioSoftReset\(\) ``` void SdioSoftReset (void ) ``` **Description:** Resets the SDIO device. ## SdioWriteExtinfo\(\) ``` unsigned int SdioWriteExtinfo ([WifiIotSdioExtendFunc](WifiIotSdioExtendFunc.md) * extFunc) ``` **Description:** Sets the extended SDIO attributes. **Parameters:**

Name	Description
extFunc	Indicates the pointer to the extended attributes.

**Returns:** Returns [WIFI\_IOT\_SUCCESS](Wifiiot.md#gae70eaf627c0370cc271dcb8060aee861) if the operation is successful; returns an error code defined in [wifiiot\_errno.h](wifiiot_errno-h.md) otherwise. ## SpiDeinit\(\) ``` unsigned int SpiDeinit ([WifiIotSpiIdx](Wifiiot.md#ga1d095e78d92cdf2ffc5e34443726e44b) spiId) ``` **Description:** Deinitializes an SPI device. **Parameters:**

Name	Description
spiId	Indicates the SPI channel ID.

**Returns:** Returns [WIFI\_IOT\_SUCCESS](Wifiiot.md#gae70eaf627c0370cc271dcb8060aee861) if the operation is successful; returns an error code defined in [wifiiot\_errno.h](wifiiot_errno-h.md) otherwise. ## SpiHostRead\(\) ``` unsigned int SpiHostRead ([WifiIotSpiIdx](Wifiiot.md#ga1d095e78d92cdf2ffc5e34443726e44b) spiId, char * readData, unsigned int byteLen ) ``` **Description:** Reads data in half-duplex SPI master mode. In SPI master mode, this function reads data of the length specified by **byteLen** in **readData** through the channel specified by **spiId**. **Parameters:**

Name	Description
spiId	Indicates the SPI channel ID.
readData	Indicates the pointer to the data to read.
byteLen	Indicates the length of the data to read.

**Returns:** Returns [WIFI\_IOT\_SUCCESS](Wifiiot.md#gae70eaf627c0370cc271dcb8060aee861) if the operation is successful; returns an error code defined in [wifiiot\_errno.h](wifiiot_errno-h.md) otherwise. ## SpiHostWrite\(\) ``` unsigned int SpiHostWrite ([WifiIotSpiIdx](Wifiiot.md#ga1d095e78d92cdf2ffc5e34443726e44b) spiId, char * writeData, unsigned int byteLen ) ``` **Description:** Sends data in half-duplex SPI master mode. In SPI master mode, this function sends data of the length specified by **byteLen** in **writeData** through the channel specified by **spiId**. **Parameters:**

Name	Description
spiId	Indicates the SPI channel ID.
writeData	Indicates the pointer to the data to send.
byteLen	Indicates the length of the data to send.

**Returns:** Returns [WIFI\_IOT\_SUCCESS](Wifiiot.md#gae70eaf627c0370cc271dcb8060aee861) if the operation is successful; returns an error code defined in [wifiiot\_errno.h](wifiiot_errno-h.md) otherwise. ## SpiHostWriteread\(\) ``` unsigned int SpiHostWriteread ([WifiIotSpiIdx](Wifiiot.md#ga1d095e78d92cdf2ffc5e34443726e44b) spiId, char * writeData, char * readData, unsigned int byteLen ) ``` **Description:** Sends and reads data in full-duplex SPI master mode. In SPI master mode, this function sends data in **writeData** and reads data of the length specified by **byteLen** in **readData** both through the channel specified by **spiId**. **Parameters:**

Name	Description
spiId	Indicates the SPI channel ID.
writeData	Indicates the pointer to the data to send.
readData	Indicates the pointer to the data to read.
byteLen	Indicates the length of the data to read.

Name	Description
spiId	Indicates the SPI channel ID.
initParam	Specifies whether the device is a slave one.
param	Indicates the pointer to the SPI device parameter.

**Returns:** Returns [WIFI\_IOT\_SUCCESS](Wifiiot.md#gae70eaf627c0370cc271dcb8060aee861) if the operation is successful; returns an error code defined in [wifiiot\_errno.h](wifiiot_errno-h.md) otherwise. ## SpiRegisterUsrFunc\(\) ``` unsigned int SpiRegisterUsrFunc ([WifiIotSpiIdx](Wifiiot.md#ga1d095e78d92cdf2ffc5e34443726e44b) spiId, [SpiIsrFunc](Wifiiot.md#gad1acc3e9c9d1c63f70aeb9d5201ed1f0) prepareF, [SpiIsrFunc](Wifiiot.md#gad1acc3e9c9d1c63f70aeb9d5201ed1f0) restoreF ) ``` **Description:** Registers the data TX preparation/recovery function. This function registers the functions registered by **prepareF** and **restoreF** for an SPI device with a channel specified by **spiId**. **Parameters:**

Name	Description
spiId	Indicates the SPI channel ID.
prepareF	Indicates the function used for data preparation.
restoreF	Indicates the function used for data recovery.

**Returns:** Returns [WIFI\_IOT\_SUCCESS](Wifiiot.md#gae70eaf627c0370cc271dcb8060aee861) if the operation is successful; returns an error code defined in [wifiiot\_errno.h](wifiiot_errno-h.md) otherwise. ## SpiSetBasicInfo\(\) ``` unsigned int SpiSetBasicInfo ([WifiIotSpiIdx](Wifiiot.md#ga1d095e78d92cdf2ffc5e34443726e44b) spiId, const [WifiIotSpiCfgBasicInfo](WifiIotSpiCfgBasicInfo.md) * param ) ``` **Description:** Sets the SPI channel parameter. **Parameters:**

Name	Description
spiId	Indicates the SPI channel ID.
param	Indicates the pointer to the SPI parameter to set.

**Returns:** Returns [WIFI\_IOT\_SUCCESS](Wifiiot.md#gae70eaf627c0370cc271dcb8060aee861) if the operation is successful; returns an error code defined in [wifiiot\_errno.h](wifiiot_errno-h.md) otherwise. ## SpiSetDmaMode\(\) ``` unsigned int SpiSetDmaMode ([WifiIotSpiIdx](Wifiiot.md#ga1d095e78d92cdf2ffc5e34443726e44b) spiId, unsigned char dmaEn ) ``` **Description:** Sets whether to enable DMA to transfer data for an SPI device in slave mode. **Parameters:**

Name	Description
spiId	Indicates the SPI channel ID.
dmaEn	Specifies whether to enable DMA. The value 1 means to enable DMA, and 0 means to disable DMA.

**Returns:** Returns [WIFI\_IOT\_SUCCESS](Wifiiot.md#gae70eaf627c0370cc271dcb8060aee861) if the operation is successful; returns an error code defined in [wifiiot\_errno.h](wifiiot_errno-h.md) otherwise. ## SpiSetIrqMode\(\) ``` unsigned int SpiSetIrqMode ([WifiIotSpiIdx](Wifiiot.md#ga1d095e78d92cdf2ffc5e34443726e44b) spiId, unsigned char irqEn ) ``` **Description:** Sets whether to enable the interrupt request \(IRQ\) mode for an SPI device. **Parameters:**

Name	Description
spiId	Indicates the SPI channel ID.
irqEn	Specifies whether to enable IRQ. The value 1 means to enable IRQ, and 0 means to disable IRQ.

**Returns:** Returns [WIFI\_IOT\_SUCCESS](Wifiiot.md#gae70eaf627c0370cc271dcb8060aee861) if the operation is successful; returns an error code defined in [wifiiot\_errno.h](wifiiot_errno-h.md) otherwise. ## SpiSetLoopBackMode\(\) ``` unsigned int SpiSetLoopBackMode ([WifiIotSpiIdx](Wifiiot.md#ga1d095e78d92cdf2ffc5e34443726e44b) spiId, unsigned char lbEn ) ``` **Description:** Sets whether to enable loopback test for an SPI device. **Parameters:**

Name	Description
spiId	Indicates the SPI channel ID.
lbEn	Specifies whether to enable loopback test. The value 1 means to enable loopback test, and 0 means to disable loopback test.

**Returns:** Returns [WIFI\_IOT\_SUCCESS](Wifiiot.md#gae70eaf627c0370cc271dcb8060aee861) if the operation is successful; returns an error code defined in [wifiiot\_errno.h](wifiiot_errno-h.md) otherwise. ## SpiSlaveRead\(\) ``` unsigned int SpiSlaveRead ([WifiIotSpiIdx](Wifiiot.md#ga1d095e78d92cdf2ffc5e34443726e44b) spiId, char * readData, unsigned int byteLen, unsigned int timeOutMs ) ``` **Description:** Reads data in SPI slave mode. In SPI slave mode, this function reads data of the length specified by **byteLen** in **readData** through the channel specified by **spiId** within the duration **timeOutMs**. **Parameters:**

Name	Description
spiId	Indicates the SPI channel ID.
readData	Indicates the pointer to the data to read.
byteLen	Indicates the length of the data to read.
timeOutMs	Indicates the timeout interval.

**Returns:** Returns [WIFI\_IOT\_SUCCESS](Wifiiot.md#gae70eaf627c0370cc271dcb8060aee861) if the operation is successful; returns an error code defined in [wifiiot\_errno.h](wifiiot_errno-h.md) otherwise. ## SpiSlaveWrite\(\) ``` unsigned int SpiSlaveWrite ([WifiIotSpiIdx](Wifiiot.md#ga1d095e78d92cdf2ffc5e34443726e44b) spiId, char * writeData, unsigned int byteLen, unsigned int timeOutMs ) ``` **Description:** Sends data in SPI slave mode. In SPI slave mode, this function sends data of the length specified by **byteLen** in **writeData** through the channel specified by **spiId** within the duration **timeOutMs**. **Parameters:**

Name	Description
spiId	Indicates the SPI channel ID.
writeData	Indicates the pointer to the data to send.
byteLen	Indicates the length of the data to send.
timeOutMs	Indicates the timeout interval.

**Returns:** Returns [WIFI\_IOT\_SUCCESS](Wifiiot.md#gae70eaf627c0370cc271dcb8060aee861) if the operation is successful; returns an error code defined in [wifiiot\_errno.h](wifiiot_errno-h.md) otherwise. ## UartDeinit\(\) ``` unsigned int UartDeinit ([WifiIotUartIdx](Wifiiot.md#ga2699252424e5469ef243ae279a263c44) id) ``` **Description:** Deinitializes a UART device. **Parameters:**

Name	Description
id	Indicates the UART port number.

**Returns:** Returns [WIFI\_IOT\_SUCCESS](Wifiiot.md#gae70eaf627c0370cc271dcb8060aee861) if the operation is successful; returns an error code defined in [wifiiot\_errno.h](wifiiot_errno-h.md) otherwise. ## UartGetAttribute\(\) ``` unsigned int UartGetAttribute ([WifiIotUartIdx](Wifiiot.md#ga2699252424e5469ef243ae279a263c44) id, [WifiIotUartAttribute](WifiIotUartAttribute.md) * attr, [WifiIotUartExtraAttr](WifiIotUartExtraAttr.md) * extraAttr ) ``` **Description:** Obtains UART attributes. This function obtains the basic and extended attributes of a UART device. **Parameters:**

Name	Description
id	Indicates the UART port number.
attr	Indicates the pointer to the basic UART attributes.
extraAttr	Indicates the pointer to the extended UART attributes.

**Returns:** Returns [WIFI\_IOT\_SUCCESS](Wifiiot.md#gae70eaf627c0370cc271dcb8060aee861) if the operation is successful; returns an error code defined in [wifiiot\_errno.h](wifiiot_errno-h.md) otherwise. ## UartInit\(\) ``` unsigned int UartInit ([WifiIotUartIdx](Wifiiot.md#ga2699252424e5469ef243ae279a263c44) id, const [WifiIotUartAttribute](WifiIotUartAttribute.md) * param, const [WifiIotUartExtraAttr](WifiIotUartExtraAttr.md) * extraAttr ) ``` **Description:** Configures a UART device. This function configures a UART device with the port number specified by **id** based on the basic and extended attributes. **Parameters:**

Name	Description
id	Indicates the UART port number.
param	Indicates the pointer to the basic UART attributes.
extraAttr	Indicates the pointer to the extended UART attributes.

**Returns:** Returns [WIFI\_IOT\_SUCCESS](Wifiiot.md#gae70eaf627c0370cc271dcb8060aee861) if the operation is successful; returns an error code defined in [wifiiot\_errno.h](wifiiot_errno-h.md) otherwise. ## UartIsBufEmpty\(\) ``` unsigned int UartIsBufEmpty ([WifiIotUartIdx](Wifiiot.md#ga2699252424e5469ef243ae279a263c44) id, unsigned char * empty ) ``` **Description:** Checks whether the buffer on a UART device is empty. The query result will be stored in **empty**. **Parameters:**

Name	Description
id	Indicates the UART port number.
empty	Indicates the pointer to the address whether the query result is to be stored. If the buffer is empty, the query result is 1. If the buffer is not empty, the query result is 0.

**Returns:** Returns [WIFI\_IOT\_SUCCESS](Wifiiot.md#gae70eaf627c0370cc271dcb8060aee861) if the operation is successful; returns an error code defined in [wifiiot\_errno.h](wifiiot_errno-h.md) otherwise. ## UartIsBusy\(\) ``` unsigned int UartIsBusy ([WifiIotUartIdx](Wifiiot.md#ga2699252424e5469ef243ae279a263c44) id, unsigned char * busy ) ``` **Description:** Checks whether the buffer on a UART device is busy. The query result will be stored in **busy**. **Parameters:**

Name	Description
id	Indicates the UART port number.
busy	Indicates the pointer to the address whether the query result is to be stored. If the buffer is busy, the query result is 1. If the buffer is not busy, the query result is 0.

**Returns:** Returns [WIFI\_IOT\_SUCCESS](Wifiiot.md#gae70eaf627c0370cc271dcb8060aee861) if the operation is successful; returns an error code defined in [wifiiot\_errno.h](wifiiot_errno-h.md) otherwise. ## UartRead\(\) ``` int UartRead ([WifiIotUartIdx](Wifiiot.md#ga2699252424e5469ef243ae279a263c44) id, unsigned char * data, unsigned int dataLen ) ``` **Description:** Reads data from a UART device. This function reads a specified length of data from a UART device with the port number specified by **id**. **Parameters:**

Name	Description
id	Indicates the UART port number.
data	Indicates the pointer to the start address of the data to read.
dataLen	Indicates the number of bytes to read.

**Returns:** Returns the number of bytes read if the operation is successful; returns **-1** otherwise. ## UartSetFlowCtrl\(\) ``` unsigned int UartSetFlowCtrl ([WifiIotUartIdx](Wifiiot.md#ga2699252424e5469ef243ae279a263c44) id, [WifiIotFlowCtrl](Wifiiot.md#gacf7ec5d973706e8239c7c6e4a470d8ab) flowCtrl ) ``` **Description:** Sets UART hardware flow control. This function configures flow control for a UART device with the port number specified by **id**. **Parameters:**

Name	Description
id	Indicates the UART port number.
flowCtrl	Indicates the parameter used for hardware flow control.

**Returns:** Returns [WIFI\_IOT\_SUCCESS](Wifiiot.md#gae70eaf627c0370cc271dcb8060aee861) if the operation is successful; returns an error code defined in [wifiiot\_errno.h](wifiiot_errno-h.md) otherwise. ## UartWrite\(\) ``` int UartWrite ([WifiIotUartIdx](Wifiiot.md#ga2699252424e5469ef243ae279a263c44) id, const unsigned char * data, unsigned int dataLen ) ``` **Description:** Writes data to a UART device. This function writes a specified length of data to a UART device with the port number specified by **id**. **Parameters:**

Name	Description
id	Indicates the UART port number.
data	Indicates the pointer to the start address of the data to write.
dataLen	Indicates the number of bytes to write.

**Returns:** Returns the number of bytes written if the operation is successful; returns **-1** otherwise. ## UartWriteImmediately\(\) ``` int UartWriteImmediately ([WifiIotUartIdx](Wifiiot.md#ga2699252424e5469ef243ae279a263c44) id, const unsigned char * data, unsigned int dataLen ) ``` **Description:** Writes data to be sent to a UART device in polling mode. **Parameters:**

Name	Description
id	Indicates the UART port number.
data	Indicates the pointer to the start address of the data to write.
dataLen	Indicates the number of bytes to write.

**Returns:** Returns the number of bytes written if the operation is successful; returns **-1** otherwise. ## WatchDogDisable\(\) ``` void WatchDogDisable (void ) ``` **Description:** Disables the watchdog. ## WatchDogEnable\(\) ``` void WatchDogEnable (void ) ``` **Description:** Enables the watchdog. ## WatchDogKick\(\) ``` void WatchDogKick (void ) ``` **Description:** Feeds the watchdog.