STM32G0B1RE USB_DRD_FS

[sravani]

Hi everyone,

I am currently working on a project involving the STM32G0B1RE microcontroller and had encountered an issue while configuring the USB_DRD_FS (Dual Role Device Full Speed) in Device mode using STM32CubeIDE.

Here are the steps I followed:

1. I selected the USB_DRD_FS peripheral and set it to Device mode.
2. I configured the USB_Device in CDC (Communications Device Class) mode under Middleware.

After completing these configurations, I noticed that the GPIO pins associated with the USB_DRD_FS peripheral didn't appear in the generated code or usbd_conf.c

Best regards,

Sravani 

[AScha.3]

Hi,

did you look in usbd_conf.c   for :  HAL_xx_MspInit( ...) ?

There it should be...

[sravani]

Am not getting GPIO pins, I get below code inside of PCD_MSP_Init,

RCC_PeriphCLKInitTypeDef PeriphClkInit = {0};
if(pcdHandle->Instance==USB_DRD_FS)
{
/* USER CODE BEGIN USB_DRD_FS_MspInit 0 */

/* USER CODE END USB_DRD_FS_MspInit 0 */

/** Initializes the peripherals clocks
*/
PeriphClkInit.PeriphClockSelection = RCC_PERIPHCLK_USB;
PeriphClkInit.UsbClockSelection = RCC_USBCLKSOURCE_HSE;
if (HAL_RCCEx_PeriphCLKConfig(&PeriphClkInit) != HAL_OK)
{
Error_Handler();
}

/* Peripheral clock enable */
__HAL_RCC_USB_CLK_ENABLE();

/* Enable VDDUSB */
if(__HAL_RCC_PWR_IS_CLK_DISABLED())
{
__HAL_RCC_PWR_CLK_ENABLE();
HAL_PWREx_EnableVddUSB();
__HAL_RCC_PWR_CLK_DISABLE();
}
else
{
HAL_PWREx_EnableVddUSB();
}

/* Peripheral interrupt init */
HAL_NVIC_SetPriority(USB_UCPD1_2_IRQn, 0, 0);
HAL_NVIC_EnableIRQ(USB_UCPD1_2_IRQn);
/* USER CODE BEGIN USB_DRD_FS_MspInit 1 */

/* USER CODE END USB_DRD_FS_MspInit 1 */

[AScha.3]

Can you compile the project - or what errors you get ?

[sravani]

i get error: USB not recognized

[sravani]

AM follow the below link

https://shawnhymel.com/1795/getting-started-with-stm32-nucleo-usb-virtual-com-port/

[AScha.3]

Can you show i pic of the build - esp. the usb connection ?

[sravani]

[AScha.3]

Might work. :)

Sure about (2x green wire) DP+/- ? If puzzeled, it never works.

+

In Cube , setup: have you usb- PD enabled ? Disable, if you did.

[Pavel A.]

> Am not getting GPIO pins

The USB pins can be set up in yet another .c file (msp...) - check all generated .c files.