DMA buffer stop filling when RTOEN is enabled UART This thread is the follow-up to this thread
Hi, is clear that uart pins are connected , the counter of received bytes is a real value. I try this one:
1. Stop RTOEN interrupt
2. And get interrupt from DMA when buffer is HALF and FULL :
and I have data in DMA buffer:
huart2.Instance->RTOR = 100;
// __HAL_UART_ENABLE_IT(&huart2, UART_IT_RTO);
// huart2.Instance->CR2 |= USART_CR2_RTOEN;
HAL_NVIC_SetPriority(USART2_IRQn, 0, 0);
HAL_NVIC_EnableIRQ(USART2_IRQn);
this is in : static void MX_USART2_UART_Init(void)
and :
void DMA1_Stream0_IRQHandler(void)
{
/* USER CODE BEGIN DMA1_Stream0_IRQn 0 */
HAL_UART_Transmit( &huart1, dma_buf ,DMA_BUFFER_SIZE , HAL_MAX_DELAY);
/* USER CODE END DMA1_Stream0_IRQn 0 */
HAL_DMA_IRQHandler(&hdma_usart2_rx);
/* USER CODE BEGIN DMA1_Stream0_IRQn 1 */
HAL_UART_Receive_DMA(&huart2, dma_buf, DMA_BUFFER_SIZE);
/* USER CODE END DMA1_Stream0_IRQn 1 */
}
this is on DMA interrupt. Then we have data:
