Hello,
I've been trying to make USBx (device_only mode) MSC work on my NUCLEO-U5A5ZJ-Q for 2 weeks now, and I don't know what I'm doing wrong.
I've tried to run the tinyUSB MSC example and it works fine so the hardware is ok.
When using USBx, after some hours of digging around, I've managed to make windows recognize the device as a USB Mass Storage, but after some time (probably 20s) the device manager shows this:
If I look at the USB frames in wireshark I see this:
The first descriptor response string appears to be malformed according to wireshark, but that doesn't seem to bother windows
The real problem seems to be in the SCSI Inquiry: it took the device 20s to reply to the frame number 307 (host -> device URB_BULK in).
The setup:
- STM32CubeIde 1.16.1
- The ioc file attached to this post
- In USBx/App/ux_device_msc.c the USBD_STORAGE_GetMediaLastLba function returns 63 and the USBD_STORAGE_GetMediaBlocklength function returns 512
- In the main function I called MX_USB_OTG_HS_PCD_Init();
- In the main.c file I defined this function:
Spoiler
void start_usb_device(void) {
//MX_USB_OTG_HS_PCD_Init();
ux_dcd_stm32_initialize((unsigned long) 0, (unsigned long)&hpcd_USB_OTG_HS);
HAL_PCD_MspInit(&hpcd_USB_OTG_HS);
/*HAL_PCD_EP_Open(&hpcd_USB_OTG_HS, 0x83, 512, EP_TYPE_BULK);
HAL_PCD_EP_Open(&hpcd_USB_OTG_HS, 0x04, 512, EP_TYPE_BULK);*/
SysTick_Config(SystemCoreClock / 1000);
HAL_PCD_Start(&hpcd_USB_OTG_HS);
}
- I called the function above in the MX_USBX_Device_Init function (USBx/App/app_usbx_device.c)
- I added this include [#include "ux_api.h"] in the Middlewares/ST/usbx/common/usbx_stm32_device_controllers/ux_dcd_stm32.h file to make the project compile
Any help is appreciated, thank you in advance.
