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STM32G0B1RCT6 Controller USB_DRD_FS Interrupt problem

Berlin-raj123
Associate III

hi,

i am Using STM32G0B1RCT6

USB_CLK = 48MHZ
USB_DRD_FS---Host_Only_FS,
USB_HOST---Mass Storage Host Class,
FATFS---USB Disk

USB Interrupt---Enable


If you set it to the above mode and operate it, the USB is recognized and i configured PB4 as an output, which is connected to a green LED. Whenever I plug in the USB to my controller, the green light appears, and whenever I remove the USB from the controller, the green light turns off. so usb detected successfully, but the USB Mount/Unmount function does not work.
It works fine with stm32f429zit6 with same configuration. What causes it? how to solve this problem?

static void USBH_UserProcess  (USBH_HandleTypeDef *phost, uint8_t id)
{
  /* USER CODE BEGIN CALL_BACK_1 */
  switch(id)
  {
  case HOST_USER_SELECT_CONFIGURATION:
  break;

  case HOST_USER_DISCONNECTION:
  Appli_state = APPLICATION_DISCONNECT;
  HAL_GPIO_WritePin(GPIOB, GPIO_PIN_4, RESET);
  Unmount_USB();
  break;

  case HOST_USER_CLASS_ACTIVE:
  Appli_state = APPLICATION_READY;
  HAL_GPIO_WritePin(GPIOB, GPIO_PIN_4, SET);
  Mount_USB();
  Check_USB_Details();//check Space Details
  Scan_USB("/");//Scan for files and Directories
  Create_File("/ROOTFILE.csv");
  char csv_data[] = "Name, Age, Salary\n\nBerlin, 27, 60000\nAlice, 28, 55000\nAlbert, 32, 55000\n";
  Write_CSV_File("ROOTFILE.csv", csv_data);
  break;

  case HOST_USER_CONNECTION:
  Appli_state = APPLICATION_START;
  break;

  default:
  break;
  }

  

1 ACCEPTED SOLUTION

Accepted Solutions
FBL
ST Employee

Hi @Berlin-raj123 

It seems you have custom implementation of Mount_USB() Unmount_USB() and they are not defined. Would you mind clarify?

Did you try the example using FatFs 

STM32CubeG0/Projects/STM32G0C1E-EV/Applications/USB_Host/MSC_Standalone at master · STMicroelectronics/STM32CubeG0 

To give better visibility on the answered topics, please click on Accept as Solution on the reply which solved your issue or answered your question.


I'm out of offce with limited access to my emails.
Happy New Year!

View solution in original post

1 REPLY 1
FBL
ST Employee

Hi @Berlin-raj123 

It seems you have custom implementation of Mount_USB() Unmount_USB() and they are not defined. Would you mind clarify?

Did you try the example using FatFs 

STM32CubeG0/Projects/STM32G0C1E-EV/Applications/USB_Host/MSC_Standalone at master · STMicroelectronics/STM32CubeG0 

To give better visibility on the answered topics, please click on Accept as Solution on the reply which solved your issue or answered your question.


I'm out of offce with limited access to my emails.
Happy New Year!