sync() involves 2 gpios on each board, each labeled
GPIO_HANDSHAKE_OUTPUT and GPIO_HANDSHAKE_INPUT on
their respective boards. They both start low,
then the th wiggles his line up and down, waiting
for the dut to mimic it.
BRANCH=None
BUG=None
TEST=manual
- Connect handshake lines to appropriate
pins on each board (pins found
in board's gpio.inc)
- Build tests
- Flash boards
- run 'cat /dev/ttyACM0' in one terminal
- run 'cat /dev/ttyACM1' in another
- They should each have printed
'successful sync'
Change-Id: I61233bca9605ba89c3628c2a65ca9013c56365ea
Reviewed-on: https://chromium-review.googlesource.com/359355
Commit-Ready: Chris Chen <twothreecc@google.com>
Tested-by: Chris Chen <twothreecc@google.com>
Reviewed-by: Daisuke Nojiri <dnojiri@chromium.org>
1b8fa6dbe4