Question
i2c2
I'm working with the DevBoard from Myir MYD-YA-157C which has the stm32mp157 MPU. I'm trying to chech the i2c from the M4 in the Engineering mode and have a problem.
When I tied the I2C_TwoBoards_ComIT, it works. At least it generates the I2C5_ER_IRQ.
But when I move to the i2c2 or any other with pins that I have out, it doesn't work. Just doesn't do anything, doesn't send anyithng and doesn't generate an interrupt.
It is a simple test without any other peripherial enabled.
Could you help me what is wrong.
static void MX_I2C2_Init(void)
{
hi2c2.Instance = I2C2;
hi2c2.Init.Timing = 0x00701837;
hi2c2.Init.OwnAddress1 = 783;
hi2c2.Init.AddressingMode = I2C_ADDRESSINGMODE_10BIT;
hi2c2.Init.DualAddressMode = I2C_DUALADDRESS_DISABLE;
hi2c2.Init.OwnAddress2 = 0;
hi2c2.Init.OwnAddress2Masks = I2C_OA2_NOMASK;
hi2c2.Init.GeneralCallMode = I2C_GENERALCALL_DISABLE;
hi2c2.Init.NoStretchMode = I2C_NOSTRETCH_DISABLE;
if (HAL_I2C_Init(&hi2c2) != HAL_OK)
{
Error_Handler();
}
/**Configure Analogue filter
*/
if (HAL_I2CEx_ConfigAnalogFilter(&hi2c2, I2C_ANALOGFILTER_ENABLE) != HAL_OK)
{
Error_Handler();
}
/**Configure Digital filter
*/
if (HAL_I2CEx_ConfigDigitalFilter(&hi2c2, 0) != HAL_OK)
{
Error_Handler();
}
/**I2C Fast mode Plus enable
*/
HAL_I2CEx_EnableFastModePlus(I2C_FASTMODEPLUS_I2C2);
}
void HAL_I2C_MspInit(I2C_HandleTypeDef* hi2c)
{
GPIO_InitTypeDef GPIO_InitStruct;
if(hi2c->Instance==I2C2)
{
/* USER CODE BEGIN I2C2_MspInit 0 */
if(IS_ENGINEERING_BOOT_MODE())
{
RCC_PeriphCLKInitTypeDef RCC_PeriphCLKInitStruct;
/*##-1- Configure the I2C clock source #*/
RCC_PeriphCLKInitStruct.PeriphClockSelection = RCC_PERIPHCLK_I2C12;
RCC_PeriphCLKInitStruct.I2c12ClockSelection = RCC_I2C12CLKSOURCE_HSI;
HAL_RCCEx_PeriphCLKConfig(&RCC_PeriphCLKInitStruct);
}
/* USER CODE END I2C2_MspInit 0 */
/**I2C2 GPIO Configuration
PZ6 ------> I2C2_SCL
PZ7 ------> I2C2_SDA
*/
GPIO_InitStruct.Pin = GPIO_PIN_6|GPIO_PIN_7;
GPIO_InitStruct.Mode = GPIO_MODE_AF_OD;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
GPIO_InitStruct.Alternate = GPIO_AF3_I2C2;
PERIPH_LOCK(GPIOZ);
HAL_GPIO_Init(GPIOZ, &GPIO_InitStruct);
PERIPH_UNLOCK(GPIOZ);
/* Peripheral clock enable */
__HAL_RCC_I2C2_CLK_ENABLE();
/* I2C2 interrupt Init */
HAL_NVIC_SetPriority(I2C2_EV_IRQn, DEFAULT_IRQ_PRIO, 0);
HAL_NVIC_EnableIRQ(I2C2_EV_IRQn);
HAL_NVIC_SetPriority(I2C2_ER_IRQn, DEFAULT_IRQ_PRIO, 0);
HAL_NVIC_EnableIRQ(I2C2_ER_IRQn);
/* USER CODE BEGIN I2C2_MspInit 1 */
/* USER CODE END I2C2_MspInit 1 */
}
}