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Nicolas Boichat 5a94f71db8 poppy: Detect base connection and enable power supply 
Base has 5.1K pull-down on detection pin, and there is a 100K
pull-up in the lid.

Accepts ADC values between 140 mV and 180 mV (4.4K to 5.8K) to
detect the base, and debounce for 5 ms. These values should be
verified later on with real hardware.

BRANCH=none
BUG=chrome-os-partner:61970
TEST=Manually with 5.1K resistor between BASE_DET_A and GND.

Change-Id: Ifded8475b06f8245e2636aa683beb0d2d0a9721d
Reviewed-on: https://chromium-review.googlesource.com/428733
Commit-Ready: Nicolas Boichat <drinkcat@chromium.org>
Tested-by: Nicolas Boichat <drinkcat@chromium.org>
Reviewed-by: Shawn N <shawnn@chromium.org>
2017-01-23 20:52:22 -08:00
board
poppy: Detect base connection and enable power supply
2017-01-23 20:52:22 -08:00
builtin
Adding offsetof macro to stddef.h.
2016-10-26 19:59:17 -07:00
chip
g: add a convenience wrapper for application data ciphering
2017-01-22 15:54:43 -08:00
common
device_state: signal if device_set_state changed the state
2017-01-23 13:38:22 -08:00
core
nds32: Add fabsf and sqrtf function
2017-01-18 22:50:54 -08:00
cts
eCTS: Test task priority
2016-11-10 21:28:33 -08:00
docs
USB Serial: Add README and update CCD docs
2016-06-15 17:54:51 -07:00
driver
driver: bmi160: Set odr to 0 at init.
2017-01-10 21:34:32 -08:00
extra
Revert "servo_v4: Remove PSTATE to create more space in RO"
2016-12-29 19:09:57 -08:00
include
device_state: signal if device_set_state changed the state
2017-01-23 13:38:22 -08:00
power
power/skylake: Add option to reset pmic using LDO_EN
2017-01-23 03:48:08 -08:00
test
CHERRY-PICK: motion_lid: Add more reliability measurements.
2017-01-20 22:40:32 -08:00
util
Makefile: Suppress 'Not a git repository' errors
2017-01-14 10:20:02 -08:00
.checkpatch.conf
checkpatch: prevent stupid complaints about description title
2016-07-21 13:13:27 -07:00
.gitignore
Makefile.rules: Add targets to see file size differences
2016-11-15 17:43:21 -08:00
COMMIT-QUEUE.ini
COMMIT-QUEUE.ini: Fix typo.
2016-09-09 19:20:12 -07:00
LICENSE
Add LICENSE file to project
2012-05-11 09:11:52 -07:00
Makefile
Makefile: Drop the extra whitespace in the 'export' line
2017-01-13 15:22:25 -08:00
Makefile.rules
Makefile: Suppress unwanted 'echo' output
2017-01-13 15:22:28 -08:00
Makefile.toolchain
Support alignment for EC host command structures
2016-10-19 20:07:09 -07:00
OWNERS
Add OWNERS files
2014-04-02 19:58:53 +00:00
PRESUBMIT.cfg
Put a newline at the end of PRESUBMIT.cfg
2016-10-07 16:47:02 -07:00
README
README: Add link to quick-build instructions
2015-12-07 13:49:35 -08:00
README.fmap
Update EC config and FMAP to reserve room for vboot signatures
2012-05-04 14:42:58 -07:00
setup.py
ec3po: Add setup script.
2015-12-08 20:05:05 -08:00

README 

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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