Hi Digvijay, Have you tested your custom board's USB communication by running the USB bootloader per Sal's suggestion in the previous thread? I think this is a good step to take to verify that your device's USB is configured correctly. Please look at the example within C2000ware : C:\ti\c2000\ C2000Ware _1_00_06_00\utilities\flash_programmers\usb_flash_programmer Best, Kevin
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