trying to add cmd1
reverting back to specifying things in binary
rewrite sd_controller basing it off of Edward's code
try using different CRC
following protocol from embed lab 9
cmd58 voltage bit 1 indicates working, not error
use the write CRC checksums
acmd41 is just cmd55 followed by cmd41
trying to figure out correct protocol
try to figure out where it's getting stuck
better debugging outputs
instead of resending acmd41, keep reading bytes on input until ready
go to deselect when last_resp = '1' not other way around
don't deselect between commands
more debugging
start implementing sd card read
use push button to control sd card reading
drop support for v1 protocol, send cmd58 after initialization
more switches and leds
make sure command and address are correct