Receiving just one byte with an UART interrupt
Hi,
I'm currently programming on the board F446RE with STM32CubeIDE, I'm only trying to get an array from the UART but I'm quite block.
When I send an array with my computer only the first byte is sent and update in my array on the STM32. While I'm following the instruction from this youtube video: https://www.youtube.com/watch?v=xE6GVt7XuJI.
Currently my code look like this:
Here is my UART configuration:
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static void MX_USART2_UART_Init(void)
{
/* USER CODE BEGIN USART2_Init 0 */
/* USER CODE END USART2_Init 0 */
/* USER CODE BEGIN USART2_Init 1 */
/* USER CODE END USART2_Init 1 */
huart2.Instance = USART2;
huart2.Init.BaudRate = 115200;
huart2.Init.WordLength = UART_WORDLENGTH_8B;
huart2.Init.StopBits = UART_STOPBITS_1;
huart2.Init.Parity = UART_PARITY_NONE;
huart2.Init.Mode = UART_MODE_TX_RX;
huart2.Init.HwFlowCtl = UART_HWCONTROL_NONE;
huart2.Init.OverSampling = UART_OVERSAMPLING_16;
if (HAL_UART_Init(&huart2) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN USART2_Init 2 */
/* USER CODE END USART2_Init 2 */
}
-----------------------------------------------------------------------------------------------------
Here my Callback functions
-----------------------------------------------------------------------------------------------------
/* USER CODE BEGIN 4 */
void HAL_UART_RxCpltCallback(UART_HandleTypeDef *huart)
{
HAL_UART_Receive_IT(&huart2, rx_buff, 5);
__NOP();
}
void HAL_UART_TxCpltCallback(UART_HandleTypeDef *huart)
{
__NOP();
}
void HAL_UART_ErrorCallback(UART_HandleTypeDef *huart)
{
__NOP();
}
/* USER CODE END 4 */
--------------------------------------------------------------------------------------------------------
Here my main:
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_USART2_UART_Init();
/* USER CODE BEGIN 2 */
//HAL_UART_Transmit_IT(&huart2, mess, 20);
HAL_UART_Receive_IT(&huart2, rx_buff, 5);
HAL_UART_Transmit_IT(&huart2, tx_buff, 5);
/* USER CODE END 2 */
/* Infinite loop */
/* USER CODE BEGIN WHILE */
while (1)
{
/* USER CODE END WHILE */
/* USER CODE BEGIN 3 */
HAL_GPIO_TogglePin(GPIOA, GPIO_PIN_5);
HAL_Delay(500);
}
/* USER CODE END 3 */
}
--------------------------------------------------------------------------------------------------------
To send the UART array I use the python's code
--------------------------------------------------------------------------------------------------------
import serial
#Test un envoie sur l'interruption
ser = serial.Serial("/dev/ttyACM0", baudrate=115200, bytesize=8, parity='N', stopbits=1, timeout=500)
array = bytearray([8,2,3,4,5])
ser.write(array) #Envoie sur le port UART
--------------------------------------------------------------------------------------------------------
Could you help me please? :(
Sincerely yours,
Julien