How to access a SD-Card connected by STM32 SDIO as a U-Disk by PC?

[Junde]

Hi there,

I am working on STM32F429BIT6, and I have a SD-Card connected.

Now, I want to copy some data between the PC and SD-Card by USB directly.

Is there any example or document?

Anything is welcome, thank you!

[Tesla DeLorean]

There should be a MSC USB Device example amongst those ib CubeF4, perhaps as Applications for EVAL or DISCO series boards that map operations to SDIO port.

[Junde]

@Tesla DeLorean  Thank you for your information!

I find a example similar with my requirement at STM32Cube_FW_F4_V1.28.0\Projects\STM32F412G-Discovery\Applications\USB_Device\MSC_Standalone, I will read it carefully.

[Junde]

Hi, @Tesla DeLorean 

I have read the example and this tutorial carefully.

But my program always can't work, the code is stopped at USBD_GetEpDesc() because pdesc->bDescriptorType always NOT equals to USB_DESC_TYPE_ENDPOINT

I am not skillful at USB, but I can sure the hardware is work well, as I have a project can do that thins.

If need, refer my project at attachment.

Thanks for your help!

[Junde · Accepted solution]

For MDK IDE, the USB related code must compiled by "MDK compiler V5", the binary by "MDK compiler V6" will NOT work!

Demo reference: https://github.com/ShadowThree/STM32V6_extFlash_SDcard_FatFS_Udisk_Demo