ARMmbed
/
mbed-os
mirror of https://github.com/ARMmbed/mbed-os.git
1
0
Fork 0
Code Issues Projects Releases Wiki Activity

Merge pull request #12350 from maciejbocianski/fix_fpga_i2c_test 

implements i2c_free for STM
pull/12357/head
Martin Kojtal 2020-02-03 09:56:59 +00:00 committed by GitHub
parent 236c336526 0b634e54b4
commit 02c5e0806f
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 48 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
targets/TARGET_STM/TARGET_STM32F4/TARGET_STM32F411xE/TARGET_NUCLEO_F411RE/PeripheralPinMaps.h
View File

@ -94,7 +94,7 @@ MSTD_CONSTEXPR_OBJ_11 const PinMap PinMap_I2C_SDA[] = {
};
MSTD_CONSTEXPR_OBJ_11 const PinMap PinMap_I2C_SCL[] = {
{PA_8, I2C_3, STM_PIN_DATA(STM_MODE_AF_OD, GPIO_NOPULL, GPIO_AF4_I2C3)},
//{PA_8, I2C_3, STM_PIN_DATA(STM_MODE_AF_OD, GPIO_NOPULL, GPIO_AF4_I2C3)}, // Connected to MCO
{PB_6, I2C_1, STM_PIN_DATA(STM_MODE_AF_OD, GPIO_NOPULL, GPIO_AF4_I2C1)},
{PB_8, I2C_1, STM_PIN_DATA(STM_MODE_AF_OD, GPIO_NOPULL, GPIO_AF4_I2C1)},
{PB_10, I2C_2, STM_PIN_DATA(STM_MODE_AF_OD, GPIO_NOPULL, GPIO_AF4_I2C2)},

47
targets/TARGET_STM/i2c_api.c
View File

@ -369,6 +369,48 @@ void i2c_init_internal(i2c_t *obj, const i2c_pinmap_t *pinmap)
#endif
}
void i2c_deinit_internal(i2c_t *obj)
{
struct i2c_s *obj_s = I2C_S(obj);
i2c_hw_reset(obj);
HAL_I2C_DeInit(&(obj_s->handle));
#if defined I2C1_BASE
if (obj_s->i2c == I2C_1) {
__HAL_RCC_I2C1_CLK_DISABLE();
}
#endif
#if defined I2C2_BASE
if (obj_s->i2c == I2C_2) {
__HAL_RCC_I2C2_CLK_DISABLE();
}
#endif
#if defined I2C3_BASE
if (obj_s->i2c == I2C_3) {
__HAL_RCC_I2C3_CLK_DISABLE();
}
#endif
#if defined I2C4_BASE
if (obj_s->i2c == I2C_4) {
__HAL_RCC_I2C4_CLK_DISABLE();
}
#endif
#if defined FMPI2C1_BASE
if (obj_s->i2c == FMPI2C_1) {
__HAL_RCC_FMPI2C1_CLK_DISABLE();
}
#endif
pin_mode(obj_s->sda, PullNone);
pin_mode(obj_s->scl, PullNone);
obj_s->sda = NC;
obj_s->scl = NC;
obj_s->i2c = (I2CName)NC;
}
#if STATIC_PINMAP_READY
#define I2C_INIT_DIRECT i2c_init_direct
void i2c_init_direct(i2c_t *obj, const i2c_pinmap_t *pinmap)
@ -396,6 +438,11 @@ void i2c_init(i2c_t *obj, PinName sda, PinName scl)
I2C_INIT_DIRECT(obj, &explicit_i2c_pinmap);
}
void i2c_free(i2c_t *obj)
{
i2c_deinit_internal(obj);
}
void i2c_frequency(i2c_t *obj, int hz)
{