without iic eeprom, could re-enumeration possible with fw downloaded vid/pid? | Cypress Semiconductor
without iic eeprom, could re-enumeration possible with fw downloaded vid/pid?
I get hand to usb application recently and run into problem.
I want to do re-enumerate with the vendor specific VID/PID in the downloaded FW, but there is no i2c eeprom in my board, is this possible? note it's fx2lp 68013a.
I think it should be ok as
1, host do the initial enumeration with the default VID/PID.
2, host download FW to c51.
3, host release reset to c51 and vendor specific VID/PID replace the default VID/PID and do renumeration.
I download the fw example(buckloop.hex) after initial enumeration and host get unkown device with pid/vid =0. it seems doesn't work.
do I have to have i2c e2prom on board? or some modification to fw is needed?