2020-03-12 07:22 AM
I tried all possible solutions but still not working...need some enlightenment :)
I am using STM32F070F6P6 china made breakout board
and has no on-board USB circuit so I made it on breadboard. please see attached circuit
I am using default STM32CubeIDE inbuilt MX created HAL driver and USB CDC VCP or HID middleware without any changes so not attaching any code.
STM32CubeIDE version 1.3.0
STM32Cube FW_F0 V1.11.0
Error: Unknown USB Device (Device Descriptor Request Failed)
Error Code: 43
Schematic
2020-04-15 01:33 AM
Hello @VPal.1 ,
Follow this FAQ: USB device not recognized, it may help you.
Also try changing CDC_DATA_HS_MAX_PACKET_SIZE in usbd_cdc_if.h (like in this thread),
#define CDC_DATA_HS_MAX_PACKET_SIZE 64 /* Endpoint IN & OUT Packet size */
Best Regards,
Imen