STM32F105/7 USB MSD - STM32CubeMX

[aaronlynn]

Posted on September 02, 2015 at 13:40

I have generated code, using STM32CubeMX,  to operate and show up as a MSD on my windows computer - HOWEVER,  when I connect my device to the computer I can not see the device - instead it shows up in the Universal Serial Bus controllers section in Device manager as an Unknown device - Device Descriptor Request Failed.

Windows error Code 43. is there something I need to add to the generated code? I have attached the code. PLEASE HELP #otg #stm32f105/7-msd

[Nickname5522_O]

Posted on September 02, 2015 at 17:59

Hi lynn.aaron,

Try to run the example under STM32Cube_FW_F1_V1.2.0\Projects\STM3210E_EVAL\Applications\USB_Device\MSC_Standalone with STM32CubeMx 4.10.0, and compare your generated code with this one. -Shahrzad-

[aaronlynn]

Posted on September 03, 2015 at 12:42

I have tried running the code you have mentioned. The MSD does not show up, it instead installs the drivers and then flashes up as a removable device. Is this because there is no SD card as mentioned in the example? the dev board I am using has a SD card, do I just need to redirect to the sd card?