USB HID writefile ( output report ) only works under some F103xx board, GetLastError is 31
Posted on January 25, 2015 at 16:42 I have 5 stm32 boards, 3 with F103RBT6 , 2 with F103C8T6. I build an USB HID firmware by using USB FS Device Library 4.0, the code is just modified from the custom HID demo in the ST USB device library...