[Libre-soc-dev] daily kan-ban update 11mar2022

[Boris Shingarov]

> if you don't get the external uart working, the usb serial adaptor 
> that's programmed into the fpga is known to work
FWIW I can confirm that the external uart works for me with zero problems.

Just be aware that the RX/TX polarity shown in Matt's "Little Guide" is 
misleading, in reality the IO0 pin is the crab's TX and IO1 is the 
crab's RX.