diff --git a/bsp/essemi/es32f369x/applications/arduino_pinout/README.md b/bsp/essemi/es32f369x/applications/arduino_pinout/README.md
index 16ea3918a9d32196856b144944c8ae14e7e0b7e4..5144d2536437fb36b07b90e5fe8a45dbfc9ad5da 100644
--- a/bsp/essemi/es32f369x/applications/arduino_pinout/README.md
+++ b/bsp/essemi/es32f369x/applications/arduino_pinout/README.md
@@ -11,7 +11,7 @@ ES32F3696已经适配了[RTduino软件包](https://github.com/RTduino/RTduino)
 ```Kconfig
 Hardware Drivers Config --->
     Onboard Peripheral Drivers --->
-        [*] Support Arduino
+        [*] Compatible with Arduino Ecosystem (RTduino)
 ```
 
 2. 进入RTduino配置，打开需要使用的各项配置 (SPI,I2C,Adafrui等)
diff --git a/bsp/stm32/libraries/HAL_Drivers/drv_pwm.c b/bsp/stm32/libraries/HAL_Drivers/drv_pwm.c
index c5422fd553ca9df9d7d23e42df38d03e2f1199c9..c233cc55f2e1721bd24245756b962b7891cc7f74 100644
--- a/bsp/stm32/libraries/HAL_Drivers/drv_pwm.c
+++ b/bsp/stm32/libraries/HAL_Drivers/drv_pwm.c
@@ -213,7 +213,9 @@ static rt_uint64_t tim_clock_get(TIM_HandleTypeDef *htim)
     if (0)
 #endif
     {
+#if !(defined(SOC_SERIES_STM32F0) || defined(SOC_SERIES_STM32G0)) /* don't have HAL_RCC_GetPCLK2Freq */
         tim_clock = (rt_uint32_t)(HAL_RCC_GetPCLK2Freq() * pclk2_doubler);
+#endif
     }
     else
     {
diff --git a/bsp/stm32/libraries/HAL_Drivers/drv_usart.c b/bsp/stm32/libraries/HAL_Drivers/drv_usart.c
index addd5da9c4c3f6571452b641bf14539019b01da1..d3f7561d32199d469820dc770d3562979c612064 100644
--- a/bsp/stm32/libraries/HAL_Drivers/drv_usart.c
+++ b/bsp/stm32/libraries/HAL_Drivers/drv_usart.c
@@ -422,10 +422,6 @@ static void dma_recv_isr(struct rt_serial_device *serial, rt_uint8_t isr_flag)
 static void uart_isr(struct rt_serial_device *serial)
 {
     struct stm32_uart *uart;
-#ifdef RT_SERIAL_USING_DMA
-    rt_size_t recv_total_index, recv_len;
-    rt_base_t level;
-#endif
 
     RT_ASSERT(serial != RT_NULL);
     uart = rt_container_of(serial, struct stm32_uart, serial);
diff --git a/bsp/stm32/stm32f072-st-nucleo/applications/arduino_pinout/README.md b/bsp/stm32/stm32f072-st-nucleo/applications/arduino_pinout/README.md
index 81cae3ac9f0e66bca8bbd799654da8a0a40edda2..9914b7ecdd0fd71632881b48a93df76bde729bd5 100644
--- a/bsp/stm32/stm32f072-st-nucleo/applications/arduino_pinout/README.md
+++ b/bsp/stm32/stm32f072-st-nucleo/applications/arduino_pinout/README.md
@@ -11,7 +11,7 @@ Env 工具下敲入 menuconfig 命令，或者 RT-Thread Studio IDE 下选择 RT
 ```Kconfig
 Hardware Drivers Config --->
     Onboard Peripheral Drivers --->
-        [*] Support Arduino
+        [*] Compatible with Arduino Ecosystem (RTduino)
 ```
 
 ## 2 Arduino引脚排布
diff --git a/bsp/stm32/stm32f103-blue-pill/applications/arduino_pinout/README.md b/bsp/stm32/stm32f103-blue-pill/applications/arduino_pinout/README.md
index c536d193d5ecd738a66a5e5c7eebf8b1b8dd9462..8fea416ad3fb3dcc0081ee5f85e3f9ef9e0f84bd 100644
--- a/bsp/stm32/stm32f103-blue-pill/applications/arduino_pinout/README.md
+++ b/bsp/stm32/stm32f103-blue-pill/applications/arduino_pinout/README.md
@@ -13,7 +13,7 @@ Please go to the [RTduino repository](https://github.com/RTduino/RTduino) to see
 ```Kconfig
 Hardware Drivers Config --->
     Onboard Peripheral Drivers --->
-        [*] Support Arduino
+        [*] Compatible with Arduino Ecosystem (RTduino)
 ```
 
 ## 2 Arduino Pinout
diff --git a/bsp/stm32/stm32f103-blue-pill/applications/arduino_pinout/README_zh.md b/bsp/stm32/stm32f103-blue-pill/applications/arduino_pinout/README_zh.md
index 3e4346ccfd00d3b2272d0302295c7780df9c827f..8e00ff2944befa547207ad58de07aa177f45d9e4 100644
--- a/bsp/stm32/stm32f103-blue-pill/applications/arduino_pinout/README_zh.md
+++ b/bsp/stm32/stm32f103-blue-pill/applications/arduino_pinout/README_zh.md
@@ -13,7 +13,7 @@ Env 工具下敲入 menuconfig 命令，或者 RT-Thread Studio IDE 下选择 RT
 ```Kconfig
 Hardware Drivers Config --->
     Onboard Peripheral Drivers --->
-        [*] Support Arduino
+        [*] Compatible with Arduino Ecosystem (RTduino)
 ```
 
 ## 2 Arduino引脚排布
diff --git a/bsp/stm32/stm32f401-st-nucleo/applications/arduino_pinout/README.md b/bsp/stm32/stm32f401-st-nucleo/applications/arduino_pinout/README.md
index 580f545731216dfef6dacca42087f2df3b2a9e5e..0c4f9319751d7cb8739f38d54b2a3d94ffcb091a 100644
--- a/bsp/stm32/stm32f401-st-nucleo/applications/arduino_pinout/README.md
+++ b/bsp/stm32/stm32f401-st-nucleo/applications/arduino_pinout/README.md
@@ -11,7 +11,7 @@ Env 工具下敲入 menuconfig 命令，或者 RT-Thread Studio IDE 下选择 RT
 ```Kconfig
 Hardware Drivers Config --->
     Onboard Peripheral Drivers --->
-        [*] Support Arduino
+        [*] Compatible with Arduino Ecosystem (RTduino)
 ```
 
 ## 2 Arduino引脚排布
diff --git a/bsp/stm32/stm32f412-st-nucleo/applications/arduino_pinout/README.md b/bsp/stm32/stm32f412-st-nucleo/applications/arduino_pinout/README.md
index fd9f6787bba8f22ae8ad05762f29f446171243cb..f968517ecad7fcce9aa54d3a4c38860afc8b1e10 100644
--- a/bsp/stm32/stm32f412-st-nucleo/applications/arduino_pinout/README.md
+++ b/bsp/stm32/stm32f412-st-nucleo/applications/arduino_pinout/README.md
@@ -11,7 +11,7 @@ Env 工具下敲入 menuconfig 命令，或者 RT-Thread Studio IDE 下选择 RT
 ```Kconfig
 Hardware Drivers Config --->
     Onboard Peripheral Drivers --->
-        [*] Support Arduino
+        [*] Compatible with Arduino Ecosystem (RTduino)
 ```
 
 ## 2 Arduino引脚排布
diff --git a/bsp/stm32/stm32f469-st-disco/applications/arduino_pinout/README.md b/bsp/stm32/stm32f469-st-disco/applications/arduino_pinout/README.md
index 4c08dcde9cb2549ef60293d33e921090f0f9a333..8a0dbcc0c214ab610662d3e84317bb5bb7fd04f6 100644
--- a/bsp/stm32/stm32f469-st-disco/applications/arduino_pinout/README.md
+++ b/bsp/stm32/stm32f469-st-disco/applications/arduino_pinout/README.md
@@ -11,7 +11,7 @@ Env 工具下敲入 menuconfig 命令，或者 RT-Thread Studio IDE 下选择 RT
 ```Kconfig
 Hardware Drivers Config --->
     Onboard Peripheral Drivers --->
-        [*] Support Arduino
+        [*] Compatible with Arduino Ecosystem (RTduino)
 ```
 
 ## 2 Arduino引脚排布
diff --git a/bsp/stm32/stm32l475-atk-pandora/applications/arduino_pinout/README.md b/bsp/stm32/stm32l475-atk-pandora/applications/arduino_pinout/README.md
index 144f956ce7008e5109bc6855ece4f836c125a5e6..49072a11156f60f3fc99f5c2c6dfdf4fc4a35a60 100644
--- a/bsp/stm32/stm32l475-atk-pandora/applications/arduino_pinout/README.md
+++ b/bsp/stm32/stm32l475-atk-pandora/applications/arduino_pinout/README.md
@@ -11,7 +11,7 @@ Env 工具下敲入 menuconfig 命令，或者 RT-Thread Studio IDE 下选择 RT
 ```Kconfig
 Hardware Drivers Config --->
     Onboard Peripheral Drivers --->
-        [*] Support Arduino
+        [*] Compatible with Arduino Ecosystem (RTduino)
 ```
 
 ## 2 Arduino引脚排布