snekboard: Add samd21 SPI test function
authorKeith Packard <keithp@keithp.com>
Sat, 5 Nov 2022 22:18:27 +0000 (15:18 -0700)
committerKeith Packard <keithp@keithp.com>
Sat, 5 Nov 2022 22:18:27 +0000 (15:18 -0700)
commitfdc1facebf1d2818394b155a91b68e06db198728
tree8c7df34ac90dc1bd8607573edcf83a77d932bf68
parenta54f4fae343b7524db508dc1a29d36847a2decde
snekboard: Add samd21 SPI test function

Just sends 'hello'

Signed-off-by: Keith Packard <keithp@keithp.com>
src/snekboard/Makefile
src/snekboard/ao_pins.h
src/snekboard/snekboard.c