Hi!
With the use of USB FS I want to design application & emwin on board stm32h743i-eval. When usb is attached, the function of enumeration does not work. Function USBH_Get_DevDesc get back as USBH_BUSY always and USB is found in condition of ENUM_IDLE. In case if I give remarks that function GUI_Init enumeration works good and some of the usb descriptors can be seen on uart terminal. Something stopping usb that is taking place in GUI_Ini .It’s strange that USB (HS) Host camera device working well with or without GUI_Init.
Following code functions well:
SystemClock_Config();
__HAL_RCC_CRC_CLK_ENABLE();
//GUI_Init();
USBH_Init(&usb_storage_handle, usb_storage_process , USB_STORAGE_ID);
USBH_RegisterClass(&usb_storage_handle, USBH_MSC_CLASS);
USBH_Start(&usb_storage_handle);
while (1) {
USBH_Process(&usb_storage_handle);
}
But USB stops working If I make changes in
//GUI_Init();
on
GUI_Init();
Kindly help me in this issue.
Thanks
