I am using Nucleo-F401RE to control a LED and an X-Nucleo-IHM01A1 that drives a stepper motor.
The MCU receives message rxdata[3] through UART DMA Interrupt. The controlling of the LED is working correctly. However, the motor is spinning continuously without stopping when MCU receives a message to control the motor.
How can I make the stepper motor work correctly with DMA interrupt?
/* USER CODE BEGIN 1 */
void HAL_UART_RxCpltCallback(UART_HandleTypeDef *huart)
{
/* Prevent unused argument(s) compilation warning */
UNUSED(huart);
/* NOTE: This function should not be modified, when the callback is needed,
the HAL_UART_RxCpltCallback could be implemented in the user file
*/
///Copy message
MessageReceived();
}
void MessageReceived(){
if (rxdata[0] == 0x0A) //Led
{
HAL_UART_Transmit(&huart2, rxdata, 3, 500);
if(rxdata[1] == 1){
HAL_GPIO_WritePin(GPIOA, GPIO_PIN_1, GPIO_PIN_RESET); //Turn on
} else if(rxdata[1] == 2){
HAL_GPIO_WritePin(GPIOA, GPIO_PIN_1, GPIO_PIN_SET); // Turn off
}
} else if (rxdata[0] == 0x0B) // Motor Control
{
HAL_UART_Transmit(&huart2, rxdata, 3, 500);
uint32_t n_steps = rxdata[2];
if(rxdata[1] == 0x01){ //If receive move forward command
BSP_MotorControl_Move(0, FORWARD, n_steps);
BSP_MotorControl_WaitWhileActive(0);
} else if(rxdata[1] == 0x02){ //If receive move backward command
BSP_MotorControl_Move(0, BACKWARD, n_steps);
BSP_MotorControl_WaitWhileActive(0);
}
}
}
