/**
* @brief I2Cx MSP Init.
* @param hi2c: I2C handle
* @retval None
*/
static void I2Cx_MspInit(I2C_HandleTypeDef *hi2c)
{
GPIO_InitTypeDef GPIO_InitStructure;
/* Enable the I2C peripheral */
DISCOVERY_I2Cx_CLOCK_ENABLE();
/* Enable SCK and SDA GPIO clocks */
DISCOVERY_I2Cx_GPIO_CLK_ENABLE();
/* I2Cx SD1 & SCK pin configuration */
GPIO_InitStructure.Pin = DISCOVERY_I2Cx_SDA_PIN | DISCOVERY_I2Cx_SCL_PIN;
GPIO_InitStructure.Mode = GPIO_MODE_AF_OD;
GPIO_InitStructure.Pull = GPIO_NOPULL;
GPIO_InitStructure.Speed = GPIO_SPEED_FAST;
GPIO_InitStructure.Alternate = DISCOVERY_I2Cx_AF;
HAL_GPIO_Init(DISCOVERY_I2Cx_GPIO_PORT, &GPIO_InitStructure);
/* Force the I2C peripheral clock reset */
DISCOVERY_I2Cx_FORCE_RESET();
/* Release the I2C peripheral clock reset */
DISCOVERY_I2Cx_RELEASE_RESET();
/* Enable and set I2Cx Interrupt to the highest priority */
HAL_NVIC_SetPriority(DISCOVERY_I2Cx_EV_IRQn, 0, 0);
HAL_NVIC_EnableIRQ(DISCOVERY_I2Cx_EV_IRQn);
/* Enable and set I2Cx Interrupt to the highest priority */
HAL_NVIC_SetPriority(DISCOVERY_I2Cx_ER_IRQn, 0, 0);
HAL_NVIC_EnableIRQ(DISCOVERY_I2Cx_ER_IRQn);
}
/**
* @brief Discovery I2Cx MSP Initialization
* @param hi2c I2C handle
* @retval None
*/
static void I2Cx_MspInit(I2C_HandleTypeDef *hi2c)
{
(void) hi2c;
GPIO_InitTypeDef GPIO_InitStructure;
/* Enable SCK and SDA GPIO clocks */
DISCOVERY_I2Cx_GPIO_CLK_ENABLE();
/* I2Cx SD1 & SCK pin configuration */
GPIO_InitStructure.Pin = (DISCOVERY_I2Cx_SDA_PIN | DISCOVERY_I2Cx_SCL_PIN);
GPIO_InitStructure.Mode = GPIO_MODE_AF_OD;
GPIO_InitStructure.Pull = GPIO_PULLUP;
GPIO_InitStructure.Speed = GPIO_SPEED_HIGH;
GPIO_InitStructure.Alternate = DISCOVERY_I2Cx_AF;
HAL_GPIO_Init(DISCOVERY_I2Cx_GPIO_PORT, &GPIO_InitStructure);
/* Enable the I2C clock */
DISCOVERY_I2Cx_CLK_ENABLE();
}