void i2c_reset(i2c_t *obj)
{
int timeout;
// wait before reset
timeout = LONG_TIMEOUT;
while ((__HAL_I2C_GET_FLAG(&I2cHandle, I2C_FLAG_BUSY)) && (timeout-- != 0));
if (obj->i2c == I2C_1) {
__I2C1_FORCE_RESET();
__I2C1_RELEASE_RESET();
}
if (obj->i2c == I2C_2) {
__I2C2_FORCE_RESET();
__I2C2_RELEASE_RESET();
}
#if defined I2C3_BASE
if (obj->i2c == I2C_3) {
__I2C3_FORCE_RESET();
__I2C3_RELEASE_RESET();
}
#endif
#if defined FMPI2C1_BASE
if (obj->i2c == FMPI2C_1) {
__HAL_RCC_FMPI2C1_FORCE_RESET();
__HAL_RCC_FMPI2C1_RELEASE_RESET();
}
#endif
}
void i2c_reset(i2c_t *obj) {
if (obj->i2c == I2C_1) {
__I2C1_FORCE_RESET();
__I2C1_RELEASE_RESET();
}
if (obj->i2c == I2C_2) {
__I2C2_FORCE_RESET();
__I2C2_RELEASE_RESET();
}
}
void i2c_deinit(I2C_HandleTypeDef *i2c) {
HAL_I2C_DeInit(i2c);
if (0) {
#if MICROPY_HW_ENABLE_I2C1
} else if (i2c->Instance == I2C1) {
__I2C1_FORCE_RESET();
__I2C1_RELEASE_RESET();
__I2C1_CLK_DISABLE();
#endif
} else if (i2c->Instance == I2C2) {
__I2C2_FORCE_RESET();
__I2C2_RELEASE_RESET();
__I2C2_CLK_DISABLE();
}
}
void I2C_Reset(I2C_TypeDef* I2Cx){
uint16_t timeout;
timeout = LONG_TIMEOUT;
while((I2C_GetFlagStatus(I2Cx, I2C_FLAG_BUSY) != RESET) && (timeout-- != 0));
if(I2Cx == I2C1){
__I2C1_FORCE_RESET();
__I2C1_RELEASE_RESET();
}
else if(I2Cx == I2C2){
__I2C2_FORCE_RESET();
__I2C2_RELEASE_RESET();
}
}
void i2c_reset(i2c_t *obj) {
int timeout;
// wait before reset
timeout = LONG_TIMEOUT;
while((__HAL_I2C_GET_FLAG(&I2cHandle, I2C_FLAG_BUSY)) && (timeout-- != 0));
if (obj->i2c == I2C_1) {
__I2C1_FORCE_RESET();
__I2C1_RELEASE_RESET();
}
if (obj->i2c == I2C_2) {
__I2C2_FORCE_RESET();
__I2C2_RELEASE_RESET();
}
}
void HAL_I2C_MspInit(I2C_HandleTypeDef* hi2c)
{
GPIO_InitTypeDef GPIO_InitStruct;
if(hi2c->Instance==I2C1)
{
__I2C2_FORCE_RESET();
__I2C2_RELEASE_RESET();
/* USER CODE BEGIN I2C1_MspInit 0 */
/* USER CODE END I2C1_MspInit 0 */
/**I2C1 GPIO Configuration
PB8 ------> I2C1_SCL
PB9 ------> I2C1_SDA
*/
GPIO_InitStruct.Pin = GPIO_PIN_8|GPIO_PIN_9;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_PULLUP;
GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
GPIO_InitStruct.Alternate = GPIO_AF4_I2C1;
HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
//hi2c->Instance->CR1 = I2C_CR1_SWRST; //复位I2C控制器
//hi2c->Instance->CR1 = 0; // 解除复位（不会自动清除）
/* Peripheral clock enable */
__I2C1_CLK_ENABLE();
/* USER CODE BEGIN I2C1_MspInit 1 */
/* USER CODE END I2C1_MspInit 1 */
/*##-3- Configure the NVIC for I2C #########################################*/
/* NVIC for I2C1 */
// HAL_NVIC_SetPriority(I2C1_ER_IRQn, 0, 1);
// HAL_NVIC_EnableIRQ(I2C1_ER_IRQn);
// HAL_NVIC_SetPriority(I2C1_EV_IRQn, 0, 2);
// HAL_NVIC_EnableIRQ(I2C1_EV_IRQn);
}
}
void i2c_deinit(I2C_HandleTypeDef *i2c) {
HAL_I2C_DeInit(i2c);
if (0) {
#if defined(MICROPY_HW_I2C1_SCL)
} else if (i2c->Instance == I2C1) {
__I2C1_FORCE_RESET();
__I2C1_RELEASE_RESET();
__I2C1_CLK_DISABLE();
HAL_NVIC_DisableIRQ(I2C1_EV_IRQn);
HAL_NVIC_DisableIRQ(I2C1_ER_IRQn);
#endif
#if defined(MICROPY_HW_I2C2_SCL)
} else if (i2c->Instance == I2C2) {
__I2C2_FORCE_RESET();
__I2C2_RELEASE_RESET();
__I2C2_CLK_DISABLE();
HAL_NVIC_DisableIRQ(I2C2_EV_IRQn);
HAL_NVIC_DisableIRQ(I2C2_ER_IRQn);
#endif
#if defined(MICROPY_HW_I2C3_SCL)
} else if (i2c->Instance == I2C3) {
__I2C3_FORCE_RESET();
__I2C3_RELEASE_RESET();
__I2C3_CLK_DISABLE();
HAL_NVIC_DisableIRQ(I2C3_EV_IRQn);
HAL_NVIC_DisableIRQ(I2C3_ER_IRQn);
#endif
#if defined(MICROPY_HW_I2C4_SCL)
} else if (i2c->Instance == I2C4) {
__HAL_RCC_I2C4_FORCE_RESET();
__HAL_RCC_I2C4_RELEASE_RESET();
__HAL_RCC_I2C4_CLK_DISABLE();
HAL_NVIC_DisableIRQ(I2C4_EV_IRQn);
HAL_NVIC_DisableIRQ(I2C4_ER_IRQn);
#endif
}
}
