Solved
segmentation fault in HAL_I2S_Transmit_DMA on STM32H503
I'm about to program a continously running DMA stream (using GPDMA1 (circularly)) in an STM32H503CBU6. But the start already fails.
during the setup of the i2s->hdmatx pointer is zero causing the crash when it wants to get initialized.
I'm in need of a running example with an I2S device configured with a continously running DMA write stream
with a length of 1 (32 word) to the I2S device. Help urgently needed, please.
int main(void)
{
/* USER CODE BEGIN 1 */
/* USER CODE END 1 */
/* MCU Configuration--------------------------------------------------------*/
/* Reset of all peripherals, Initializes the Flash interface and the Systick. */
HAL_Init();
/* USER CODE BEGIN Init */
/* USER CODE END Init */
/* Configure the system clock */
SystemClock_Config();
/* USER CODE BEGIN SysInit */
/* USER CODE END SysInit */
/* Initialize all configured peripherals */
MX_GPIO_Init();
MX_GPDMA1_Init();
MX_ICACHE_Init();
MX_I2C1_Init();
MX_I2S2_Init();
MX_TIM1_Init();
/* USER CODE BEGIN 2 */
//HAL_I2S_Transmit_IT(&hi2s2, ram_loc, 1);
HAL_I2S_Transmit_DMA(&hi2s2, ram_loc,1);
/* USER CODE END 2 */
/* Infinite loop */
/* USER CODE BEGIN WHILE */
while (1)
{
HAL_Delay(10);
ram_loc[0]++,ram_loc[1]++;
//HAL_I2S_Transmit_DMA(&hi2s2, ram_loc,1);
//HAL_I2S_Transmit_IT(&hi2s2, ram_loc, 1);
//HAL_I2S_Transmit(&hi2s2, sine_amplitudes, size,5000);
//HAL_I2S_Transmit(&hi2s2, test_amplitudes, 4 ,5000);
/* USER CODE END WHILE */
/* USER CODE BEGIN 3 */
}
/* USER CODE END 3 */
}DMA
