Nicolas Boichat cb9bd66ec6 hammer: Add staff board
hammer corresponds to poppy, and staff corresponds to soraka.

Current differences (hammer/staff):
 - USB id (5022/502b)
 - PWM frequency (10kHz/100Hz):
   - On staff, driving PWM at 10kHz leads to an actual duty cycle
     around 30-40%, with a PWM output at 1% (long rise/fall time).
     100Hz looks better, we get ~1.45% duty with 1% PWM output.

BRANCH=none
BUG=b:38277869
TEST=Flash staff, boots fine.
TEST=pwm 0 1 shows quite dim backlight on staff.

Change-Id: I66ba2adf89fbee8578ee473afb28e3e242b4d111
Reviewed-on: https://chromium-review.googlesource.com/505855
Commit-Ready: Nicolas Boichat <drinkcat@chromium.org>
Tested-by: Nicolas Boichat <drinkcat@chromium.org>
Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
2017-05-16 07:47:05 -07:00
2017-05-16 07:47:05 -07:00
2017-05-16 00:09:25 -07:00
2016-11-10 21:28:33 -08:00
2017-05-12 18:46:14 -07:00
2017-05-09 23:20:07 -07:00
2017-05-16 07:47:05 -07:00
2012-05-11 09:11:52 -07:00
2014-04-02 19:58:53 +00:00
2015-12-08 20:05:05 -08:00

For an overview of the Embedded Controller firmware, refer to

http://www.chromium.org/chromium-os/2014-firmware-summit

For instructions on building from source, refer to

http://www.chromium.org/chromium-os/ec-development/getting-started-building-ec-images-quickly
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