Hi, I am working on our custom made board having EZUSB-FX2 chip using Keil IDE. After plug in the device Enumaration works fine and all the request for Default descriptor and COnfiguration are correct. But after Enumaration when I download my firmware for FX2 chip, Host PC says "Unrecognised Device"? I have looked in to the memory map as well as EEPROM file. Looks like things are OK there. I am using C0 load for EEPROM. Can any body help me in this situation that where I have to look for finding the problem. On Windows side ,in .inf file device VendorId/Product Id are defined. Where else I have to look for solution
After the renumeration, EZUSB device identifies with VID and PID taken from your firmware. Check your DSCR.A51 There you will find new VID and PID that is used for renumeration. They must be the same as specified in your inf file. Franc