Why HAL_UART_Transmit_DMA(&huart2, buffer, n) doesn't work properly inside Timer interrupt callback function? Greeting Everyone,May I have some little help here? I'm currently using STM32F303K8. I had experimented with HAL_UART_Transmit_DMA function within "the main while loop" and the TIM6_DAC1_IRQHandler(void) which was called from TIM6 in Time Base modeMy application is to send the current encoder count by UART. It'd be better to send with an determinable rate, that's why I prefer to use Timer.Here's part of my code when using polling mode(main.c)/* USER CODE BEGIN 2 */
HAL_TIM_Encoder_Start(&htim2, TIM_CHANNEL_ALL);
HAL_TIM_Base_Start_IT(&htim6);
//HAL_UART_Receive_DMA(&huart2, pData, Size)
/* USER CODE END 2 */
/* Infinite loop */
/* USER CODE BEGIN WHILE */
while (1)
{
/* USER CODE END WHILE */
/* USER CODE BEGIN 3 */
char buffer[12];
int n = sprintf(buffer, "%ld\n", TIM2->CNT);
HAL_UART_Transmit_DMA(&huart2, buffer, n);
HAL_Delay(200);
}
/* USER CODE END 3 */Here's when it's come to Timer interrupt mode(stm32f3xx_it.c)void TI
