Posted on January 10, 2016 at 02:08
Hi everyone,
I am trying to connect a nucleo board to an ESP8266-01WiFi board using UART1, I've used the STM32Cube to generate the project. I've added the NVIC and there is aUSART1_IRQHandler function generated. However, it does not seem to get called each time there is something in the DR register.
Also I've noticed that the function get stuck after it receives the first item.
This is my while inside the main.c
/* Infinite loop */
/* USER CODE BEGIN WHILE */
while
(1)
{
HAL_UART_Transmit(&huart1,ap_command,
sizeof
(ap_command),2000);
__HAL_UART_FLUSH_DRREGISTER(&huart1);
/* USER CODE END WHILE */
/* USER CODE BEGIN 3 */
hal_states = HAL_UART_GetState(&huart1);
HAL_Delay(1000);
}
/* USER CODE END 3 */
This is my IRQ function
/**
* @brief This function handles USART1 global interrupt / USART1 wake-up interrupt through EXTI line
*/
void
USART1_IRQHandler(
void
)
{
/* USER CODE BEGIN USART1_IRQn 0 */
/* USER CODE END USART1_IRQn 0 */
HAL_UART_IRQHandler(&huart1);
/* USER CODE BEGIN USART1_IRQn 1 */
if
(HAL_UART_Receive(&huart1,rx_buffer,BUFFER_SIZE,500) != HAL_OK)
{
hal_state = HAL_UART_GetState(&huart1);
}
/* USER CODE END USART1_IRQn 1 */
}
So every 1s I should have the IRQ called but it aint.
Any advice much appreciated
