Hello cweese, Simple answer would be to use Renesas RFP to update the device in the field, but requires some mode pin manipulation. Perfectly legal. People have written their own "custom" PC side loader to talk to the built-in USB Boot loader, but it is not a simple task. Still requires mode pin manipulation. So if you can jumper to USB boot mode and download in the field, the first option is the simplest, otherwise you may be looking at a custom bootloader in the device and PC. Depends on your system requirements/design. -Kevin
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