Check rp235x-hal on RISC-V

Make the top level README reflect that there are two HALs now. #282

Sign in to view logs

Run time

Learn about OS pricing on GitHub Actions

Job	Run time
test	1m 31s
build	1m 11s
clippy	49s
udeps	1m 8s
Verify build on MSRV	1m 18s
fmt	16s
	6m 13s