Question
Interupt driven uart reception not working
Hi all iam working in stm32 f051c8tx microcontroller im trying to recieve a byte and if i recieve a byte in intrupt im printing "hello world " via tx of the same uart, the issue is im not able to recieve any char the below is the code any thoughts please let me know.
void HAL_UART_RxCpltCallback(UART_HandleTypeDef *huart)
{
// HAL_UART_Transmit(&huart1, UART1_rxBuffer, 12, 100);
INTERUPT_RX_1 = rx_data[0];
HAL_UART_Receive_IT(&huart1, rx_data, 1);
}
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();
memset(SSD1306_Buffer,0,strlen(SSD1306_Buffer));
/* USER CODE BEGIN SysInit */
/* USER CODE END SysInit */
/* Initialize all configured peripherals */
MX_GPIO_Init();
MX_I2C2_Init();
MX_SPI1_Init();
// MX_SPI2_Init();
MX_TIM2_Init();
MX_TIM3_Init();
MX_USART1_UART_Init();
MX_TIM6_Init();
MX_ADC_Init();
MX_TIM14_Init();
fsm_sens_init();
RetargetInit(&huart1);
sensor_init(&sensor_cfg);
HAL_UART_Receive_IT (&huart1, rx_data, 1);
while(1)
{
// printf("while \r\n");
if(INTERUPT_RX_1 != 0)
{
printf("while");
INTERUPT_RX_1 = 0;
}
}
}
static void MX_USART1_UART_Init(void)
{
/* USER CODE BEGIN USART1_Init 0 */
/* USER CODE END USART1_Init 0 */
/* USER CODE BEGIN USART1_Init 1 */
/* USER CODE END USART1_Init 1 */
huart1.Instance = USART1;
huart1.Init.BaudRate =19200;
huart1.Init.WordLength = UART_WORDLENGTH_8B;
huart1.Init.StopBits = UART_STOPBITS_1;
huart1.Init.Parity = UART_PARITY_NONE;
huart1.Init.Mode = UART_MODE_TX_RX;
huart1.Init.HwFlowCtl = UART_HWCONTROL_NONE;
huart1.Init.OverSampling = UART_OVERSAMPLING_16;
huart1.Init.OneBitSampling = UART_ONE_BIT_SAMPLE_DISABLE;
huart1.AdvancedInit.AdvFeatureInit = UART_ADVFEATURE_NO_INIT;
if (HAL_UART_Init(&huart1) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN USART1_Init 2 */
/* USER CODE END USART1_Init 2 */
}