Example #1
0
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
}
Example #2
0
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();
    }
}
Example #3
0
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();
    }
}
Example #4
0
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();
	}
}
Example #5
0
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);
  }

}
Example #7
0
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
    }
}