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efabless / caravel_board

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Mention J2 use for serial communication through USB on chipignite Readme #94

Open mbalestrini opened 8 months ago

mbalestrini commented 8 months ago

I think it would be useful to mention that J2 on the development board connects Caravel UART to the FTDI chip on: https://github.com/efabless/caravel_board/blob/8b965cd39c64f28c24af80159d6b48bc4cc00404/firmware/chipignite/README.md

Maybe something like this?

Shorting J2 enables the serial communication between Caravel's UART and the on board FTDI USB chip. A serial terminal program like screen can then be used to exchange information between the computer and Caravel.

mbalestrini commented 8 months ago

Maybe adding that while J2 is shorted you can't flash the firmware? (at least that is what it happened in my tests)