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STM32 I2C: restore slave address in case of reset

pull/3427/head
Laurent MEUNIER 2016-12-05 14:20:28 +01:00
parent ce9d2526f8
commit 9895bcf130
1 changed files with 12 additions and 0 deletions
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12
targets/TARGET_STM/i2c_api.c
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@ -751,12 +751,24 @@ void HAL_I2C_ErrorCallback(I2C_HandleTypeDef *hi2c){
/* Get object ptr based on handler ptr */ /* Get object ptr based on handler ptr */
i2c_t *obj = get_i2c_obj(hi2c); i2c_t *obj = get_i2c_obj(hi2c);
struct i2c_s *obj_s = I2C_S(obj); struct i2c_s *obj_s = I2C_S(obj);
#if DEVICE_I2CSLAVE
I2C_HandleTypeDef *handle = &(obj_s->handle);
uint32_t address = 0;
/* Store address to handle it after reset */
if(obj_s->slave)
address = handle->Init.OwnAddress1;
#endif
DEBUG_PRINTF("HAL_I2C_ErrorCallback:%d, index=%d\r\n", (int) hi2c->ErrorCode, obj_s->index); DEBUG_PRINTF("HAL_I2C_ErrorCallback:%d, index=%d\r\n", (int) hi2c->ErrorCode, obj_s->index);
/* re-init IP to try and get back in a working state */ /* re-init IP to try and get back in a working state */
i2c_init(obj, obj_s->sda, obj_s->scl); i2c_init(obj, obj_s->sda, obj_s->scl);
#if DEVICE_I2CSLAVE
/* restore slave address */
i2c_slave_address(obj, 0, address, 0);
#endif
/* Keep Set event flag */ /* Keep Set event flag */
obj_s->event = I2C_EVENT_ERROR; obj_s->event = I2C_EVENT_ERROR;
} }