Can't connect to CYUSB3014 after programming the firmware by Program->FX3->RAM in USB Control Center

[Anonymous]

Hi, I have a board with CYUSB3014 on it, and I made the PMODE[2:0] as "F11".

When I connect the board to PC, I can see "Cypress USE bootloader" in USB Control Center. Then I program the device using Program->FX3->RAM, after the programing, the USB Control Center will show "Program succeeded", but I can't find the device in USB Control Center after the programming. The image file is generated using Existing Project (Cypress\EZ-USB FX3 SDK\1.3\firmware\basic_examples\cyfxbulklpautoenum）using EZ USB Suite.

Is there any possible reason and solution for this phenomenon (can't connect to CYUSB3014 after programming the firmware)?

[YiZ_31]

Hi,

May I know have you done modification to cyfxbulklpdscr.cpp file? This phenomenon would happen usually because the Vender ID is changed and the computer cannot recognize the device.

Regards,

Eddie