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Board version: v7.0
https://twitter.com/Claude1079/status/1231194849350647808
SN74CBT3245APW 8bit bidirectional FET switches QS3245QG
https://github.com/antonblanchard/chiselwatt/commit/5a7fcbc8142ed2b390e1f8bfaaa801fe09a60351
UART RX is on J19, labelled key+ on the silk screen on the back UART TX is on J1, pin 1.
LOCATE COMP "clock" SITE "P6";
LOCATE COMP "io_tx" SITE "F3"; LOCATE COMP "io_rx" SITE "M13";
basic example of litex on colorLight 5A-75B based on fpga_101/lab004
https://twitter.com/adamgreig/status/1297255957320421383
I don't want to load a new image onto this totally blind, so I used the prjtrellis tools (https://github.com/YosysHQ/prjtrellis/) to write a script (https://github.com/adamgreig/cl/blob/master/pins.py) which works out input/output/bidi for all pins used in any ECP5 bitstream. It found only one unused pin...
https://github.com/adamgreig/cl/blob/master/pins.py
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