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前往新版Gitcode,体验更适合开发者的 AI 搜索 >>
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90d9b449
编写于
9月 19, 2022
作者:
H
hg0720
提交者:
GitHub
9月 19, 2022
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电子邮件补丁
差异文件
[ch32v307v-r1] 添加了模拟iic驱动 (#6447)
上级
4b897fea
变更
5
隐藏空白更改
内联
并排
Showing
5 changed file
with
311 addition
and
0 deletion
+311
-0
bsp/wch/risc-v/Libraries/ch32_drivers/SConscript
bsp/wch/risc-v/Libraries/ch32_drivers/SConscript
+4
-0
bsp/wch/risc-v/Libraries/ch32_drivers/drv_adc.c
bsp/wch/risc-v/Libraries/ch32_drivers/drv_adc.c
+2
-0
bsp/wch/risc-v/Libraries/ch32_drivers/drv_soft_i2c.c
bsp/wch/risc-v/Libraries/ch32_drivers/drv_soft_i2c.c
+214
-0
bsp/wch/risc-v/Libraries/ch32_drivers/drv_soft_i2c.h
bsp/wch/risc-v/Libraries/ch32_drivers/drv_soft_i2c.h
+53
-0
bsp/wch/risc-v/ch32v307v-r1/board/Kconfig
bsp/wch/risc-v/ch32v307v-r1/board/Kconfig
+38
-0
未找到文件。
bsp/wch/risc-v/Libraries/ch32_drivers/SConscript
浏览文件 @
90d9b449
...
...
@@ -22,6 +22,10 @@ if GetDepend('SOC_RISCV_FAMILY_CH32'):
if
GetDepend
([
'BSP_USING_DAC'
]):
src
+=
[
'drv_dac.c'
]
if
GetDepend
([
'RT_USING_I2C'
,
'RT_USING_I2C_BITOPS'
]):
if
GetDepend
(
'BSP_USING_I2C1'
)
or
GetDepend
(
'BSP_USING_I2C2'
):
src
+=
[
'drv_soft_i2c.c'
]
path
=
[
cwd
]
group
=
DefineGroup
(
'Drivers'
,
src
,
depend
=
[
''
],
CPPPATH
=
path
)
...
...
bsp/wch/risc-v/Libraries/ch32_drivers/drv_adc.c
浏览文件 @
90d9b449
...
...
@@ -148,9 +148,11 @@ static rt_uint32_t ch32_adc_get_channel(rt_uint32_t channel)
ch32_channel
=
ADC_Channel_17
;
break
;
#endif
/* ADC_CHANNEL_17 */
#ifdef ADC_CHANNEL_18
case
18
:
ch32_channel
=
ADC_Channel_18
;
break
;
#endif
/* ADC_CHANNEL_18 */
#ifdef ADC_CHANNEL_19
case
19
:
ch32_channel
=
ADC_Channel_19
;
...
...
bsp/wch/risc-v/Libraries/ch32_drivers/drv_soft_i2c.c
0 → 100644
浏览文件 @
90d9b449
/*
* Copyright (c) 2006-2022, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2022-09-19 hg0720 the first version which add from wch
*/
#include <board.h>
#include "drv_soft_i2c.h"
#ifdef RT_USING_I2C
//#define DRV_DEBUG
#define LOG_TAG "drv.i2c"
#include <drv_log.h>
#if !defined(BSP_USING_I2C1) && !defined(BSP_USING_I2C2)
#error "Please define at least one BSP_USING_I2Cx"
/* this driver can be disabled at menuconfig -> RT-Thread Components -> Device Drivers */
#endif
static
const
struct
ch32_soft_i2c_config
soft_i2c_config
[]
=
{
#ifdef BSP_USING_I2C1
I2C1_BUS_CONFIG
,
#endif
#ifdef BSP_USING_I2C2
I2C2_BUS_CONFIG
,
#endif
};
static
struct
ch32_i2c
i2c_obj
[
sizeof
(
soft_i2c_config
)
/
sizeof
(
soft_i2c_config
[
0
])];
/*
* This function initializes the i2c pin.
*
* @param ch32 i2c dirver class.
*/
static
void
ch32_i2c_gpio_init
(
struct
ch32_i2c
*
i2c
)
{
struct
ch32_soft_i2c_config
*
cfg
=
(
struct
ch32_soft_i2c_config
*
)
i2c
->
ops
.
data
;
rt_pin_mode
(
cfg
->
scl
,
PIN_MODE_OUTPUT_OD
);
rt_pin_mode
(
cfg
->
sda
,
PIN_MODE_OUTPUT_OD
);
rt_pin_write
(
cfg
->
scl
,
PIN_HIGH
);
rt_pin_write
(
cfg
->
sda
,
PIN_HIGH
);
}
/*
* This function sets the sda pin.
*
* @param Ch32 config class.
* @param The sda pin state.
*/
static
void
ch32_set_sda
(
void
*
data
,
rt_int32_t
state
)
{
struct
ch32_soft_i2c_config
*
cfg
=
(
struct
ch32_soft_i2c_config
*
)
data
;
if
(
state
)
{
rt_pin_write
(
cfg
->
sda
,
PIN_HIGH
);
}
else
{
rt_pin_write
(
cfg
->
sda
,
PIN_LOW
);
}
}
/*
* This function sets the scl pin.
*
* @param Ch32 config class.
* @param The scl pin state.
*/
static
void
ch32_set_scl
(
void
*
data
,
rt_int32_t
state
)
{
struct
ch32_soft_i2c_config
*
cfg
=
(
struct
ch32_soft_i2c_config
*
)
data
;
if
(
state
)
{
rt_pin_write
(
cfg
->
scl
,
PIN_HIGH
);
}
else
{
rt_pin_write
(
cfg
->
scl
,
PIN_LOW
);
}
}
/*
* This function gets the sda pin state.
*
* @param The sda pin state.
*/
static
rt_int32_t
ch32_get_sda
(
void
*
data
)
{
struct
ch32_soft_i2c_config
*
cfg
=
(
struct
ch32_soft_i2c_config
*
)
data
;
return
rt_pin_read
(
cfg
->
sda
);
}
/*
* This function gets the scl pin state.
*
* @param The scl pin state.
*/
static
rt_int32_t
ch32_get_scl
(
void
*
data
)
{
struct
ch32_soft_i2c_config
*
cfg
=
(
struct
ch32_soft_i2c_config
*
)
data
;
return
rt_pin_read
(
cfg
->
scl
);
}
/*
* The time delay function.
*
* @param microseconds.
*/
static
void
ch32_udelay
(
rt_uint32_t
us
)
{
rt_uint32_t
ticks
;
rt_uint32_t
told
,
tnow
,
tcnt
=
0
;
rt_uint32_t
reload
=
SysTick
->
CMP
;
ticks
=
us
*
reload
/
(
1000000
/
RT_TICK_PER_SECOND
);
told
=
SysTick
->
CNT
;
while
(
1
)
{
tnow
=
SysTick
->
CNT
;
if
(
tnow
!=
told
)
{
if
(
tnow
>
told
)
{
tcnt
+=
tnow
-
told
;
}
else
{
tcnt
+=
reload
-
told
+
tnow
;
}
told
=
tnow
;
if
(
tcnt
>=
ticks
)
{
break
;
}
}
}
}
static
const
struct
rt_i2c_bit_ops
ch32_bit_ops_default
=
{
.
data
=
RT_NULL
,
.
set_sda
=
ch32_set_sda
,
.
set_scl
=
ch32_set_scl
,
.
get_sda
=
ch32_get_sda
,
.
get_scl
=
ch32_get_scl
,
.
udelay
=
ch32_udelay
,
.
delay_us
=
1
,
.
timeout
=
100
};
/*
* if i2c is locked, this function will unlock it
*
* @param ch32 config class
*
* @return RT_EOK indicates successful unlock.
*/
static
rt_err_t
ch32_i2c_bus_unlock
(
const
struct
ch32_soft_i2c_config
*
cfg
)
{
rt_int32_t
i
=
0
;
if
(
PIN_LOW
==
rt_pin_read
(
cfg
->
sda
))
{
while
(
i
++
<
9
)
{
rt_pin_write
(
cfg
->
scl
,
PIN_HIGH
);
ch32_udelay
(
100
);
rt_pin_write
(
cfg
->
scl
,
PIN_LOW
);
ch32_udelay
(
100
);
}
}
if
(
PIN_LOW
==
rt_pin_read
(
cfg
->
sda
))
{
return
-
RT_ERROR
;
}
return
RT_EOK
;
}
/* I2C initialization function */
int
rt_hw_i2c_init
(
void
)
{
rt_size_t
obj_num
=
sizeof
(
i2c_obj
)
/
sizeof
(
struct
ch32_i2c
);
rt_err_t
result
;
for
(
int
i
=
0
;
i
<
obj_num
;
i
++
)
{
i2c_obj
[
i
].
ops
=
ch32_bit_ops_default
;
i2c_obj
[
i
].
ops
.
data
=
(
void
*
)
&
soft_i2c_config
[
i
];
i2c_obj
[
i
].
i2c2_bus
.
priv
=
&
i2c_obj
[
i
].
ops
;
ch32_i2c_gpio_init
(
&
i2c_obj
[
i
]);
result
=
rt_i2c_bit_add_bus
(
&
i2c_obj
[
i
].
i2c2_bus
,
soft_i2c_config
[
i
].
bus_name
);
RT_ASSERT
(
result
==
RT_EOK
);
ch32_i2c_bus_unlock
(
&
soft_i2c_config
[
i
]);
LOG_D
(
"software simulation %s init done, pin scl: %d, pin sda %d"
,
soft_i2c_config
[
i
].
bus_name
,
soft_i2c_config
[
i
].
scl
,
soft_i2c_config
[
i
].
sda
);
}
return
RT_EOK
;
}
INIT_BOARD_EXPORT
(
rt_hw_i2c_init
);
#endif
/* RT_USING_I2C */
bsp/wch/risc-v/Libraries/ch32_drivers/drv_soft_i2c.h
0 → 100644
浏览文件 @
90d9b449
/*
* Copyright (c) 2006-2022, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2022-09-19 hg0720 the first version which add from wch
*/
#ifndef __DRV_I2C__
#define __DRV_I2C__
#include <rtthread.h>
#include <rthw.h>
#include <rtdevice.h>
/* ch32 config class */
struct
ch32_soft_i2c_config
{
rt_uint8_t
scl
;
rt_uint8_t
sda
;
const
char
*
bus_name
;
};
/* ch32 i2c dirver class */
struct
ch32_i2c
{
struct
rt_i2c_bit_ops
ops
;
struct
rt_i2c_bus_device
i2c2_bus
;
};
#ifdef BSP_USING_I2C1
#define I2C1_BUS_CONFIG \
{ \
.scl = BSP_I2C1_SCL_PIN, \
.sda = BSP_I2C1_SDA_PIN, \
.bus_name = "i2c1", \
}
#endif
#ifdef BSP_USING_I2C2
#define I2C2_BUS_CONFIG \
{ \
.scl = BSP_I2C2_SCL_PIN, \
.sda = BSP_I2C2_SDA_PIN, \
.bus_name = "i2c2", \
}
#endif
int
rt_hw_i2c_init
(
void
);
#endif
bsp/wch/risc-v/ch32v307v-r1/board/Kconfig
浏览文件 @
90d9b449
...
...
@@ -84,6 +84,44 @@ menu "On-chip Peripheral Drivers"
default n
endif
menuconfig BSP_USING_I2C
bool "Enable I2C Bus"
default n
select RT_USING_I2C
select RT_USING_I2C_BITOPS
select RT_USING_PIN
if BSP_USING_I2C
config BSP_USING_I2C1
bool "Enable I2C1 Bus"
default n
if BSP_USING_I2C1
comment "Notice: PC7 --> 39; PC6 --> 38"
config BSP_I2C1_SCL_PIN
int "i2c1 SCL pin number"
range 0 79
default 38
config BSP_I2C1_SDA_PIN
int "i2c1 SDA pin number"
range 0 79
default 39
endif
config BSP_USING_I2C2
bool "Enable I2C2 Bus"
default n
if BSP_USING_I2C2
comment "Notice: PC1 --> 33; PC0 --> 32"
config BSP_I2C2_SCL_PIN
int "i2c2 SCL pin number"
range 0 79
default 32
config BSP_I2C2_SDA_PIN
int "i2c2 SDA pin number"
range 0 79
default 33
endif
endif
endmenu
menu "Onboard Peripheral Drivers"
...
...
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