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STM32F446RE Nucleo 64

Question asked by brammer.benjamin on Oct 24, 2016
Latest reply on Nov 14, 2016 by kh.Mehran
Hi Guys,

i try to experiment a bit with the USB CDC library. Sadly I don't get it to work out of the box after I configured everything in STMCubeMX.
I tried to learn something from the F4 firmware libraray tutorial projects on CDC. But I find it quite complicated to understand, since there's a complete different board used and also an USART used for communicating.
Basically I want to configure my STM446RE to behave as a USB CDC device with messages send over parallel port as a VCP device. But when I run the program Windows doesn't recognize my new device. Just the one created by the STV/Link debugger.
To send data over USB I added a message which I send in main while(1) loop:

/* USER CODE BEGIN 0 */
uint8_t HiMsg[] = "hello  HHI\r\n";


/* USER CODE END 0 */


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();


  /* Configure the system clock */
  SystemClock_Config();


  /* Initialize all configured peripherals */
  MX_GPIO_Init();
  MX_TIM3_Init();
  MX_TIM2_Init();
  MX_USB_DEVICE_Init();
  MX_USART3_UART_Init();


  /* USER CODE BEGIN 2 */


  /* USER CODE END 2 */


  /* Infinite loop */
  /* USER CODE BEGIN WHILE */
  while (1)
  {


       CDC_Transmit_FS(HiMsg, strlen(HiMsg));
       HAL_Delay(500);


  }
  /* USER CODE END 3 */


}

Would be glad if someone could help.
Thanks!

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