Vincent Palatin 1a4bf7fdaa zinger: update current and voltage sensing gains ...

On the P2 boards, the operational amplifier gain for current sensing is
exactly x100 rather than x101.
(non-inverter configuration with R1=1.8kOhm R2=178kOhm)

The voltage gain constant had a typo introducing a 10% error.
the voltage divider is 10k/100k,so it's x11 gain.
ie it should be written (10+100)/10 rather than (10+110).

Signed-off-by: Vincent Palatin <vpalatin@chromium.org>

BRANCH=none
BUG=chrome-os-partner:28331
TEST=make BOARD=zinger
checked manually with a voltmeter and traces.

Change-Id: I8097ab50149fee319efc11ebae75802e8a49a7f8
Reviewed-on: https://chromium-review.googlesource.com/204540
Reviewed-by: Alec Berg <alecaberg@chromium.org>
Commit-Queue: Vincent Palatin <vpalatin@chromium.org>
Tested-by: Vincent Palatin <vpalatin@chromium.org>

2014-06-20 18:27:16 +00:00

..

bds

cleanup: Remove checkpatch warnings

2013-12-19 00:12:28 +00:00

big

Add cprints() and ccprints()

2014-05-21 20:32:17 +00:00

discovery

cleanup: Consolidate module IDs into a single shared enum

2013-10-25 03:09:51 +00:00

falco

Rename charge_state.[ch] to charge_state_v1.[ch]

2014-03-20 23:51:00 +00:00

firefly

samus: Allow samus to charge w/o battery or with dead battery

2014-06-09 22:20:48 +00:00

fruitpie

fruitpie: detect source disconnect and go to disconnected state

2014-06-13 05:35:16 +00:00

host

Increase test coverage of charge_state_v2.c

2014-04-11 15:37:53 +00:00

it8380dev

ite: Add initial support for ITE IT8380 chip

2014-01-08 02:24:23 +00:00

keyborg

Keyborg: implement methods needed for touch wake

2014-06-19 03:25:12 +00:00

link

Increase some task stack sizes to handle more FP regs.

2014-05-01 05:47:27 +00:00

mccroskey

cleanup: Consolidate module IDs into a single shared enum

2013-10-25 03:09:51 +00:00

mec1322_evb

mec1322: hibernation support

2014-01-28 04:35:50 +00:00

nyan

Add cprints() and ccprints()

2014-05-21 20:32:17 +00:00

peppy

Rename charge_state.[ch] to charge_state_v1.[ch]

2014-03-20 23:51:00 +00:00

pit

cleanup: Combined i2c unwedge code into one common function

2014-03-06 02:42:49 +00:00

rambi

Rambi, Squawks: Clean up old comment on keyboard IRQ

2014-04-01 00:47:28 +00:00

samus

samus: Power sequence changes for P2 boards

2014-06-13 20:37:26 +00:00

samus_pd

samus_pd: extend typec console cmd to work for both type C ports

2014-06-13 05:34:24 +00:00

snow

cleanup: Combined i2c unwedge code into one common function

2014-03-06 02:42:49 +00:00

spring

cleanup: Combined i2c unwedge code into one common function

2014-03-06 02:42:49 +00:00

squawks

Squawks: Adjust charge thresholds for altering LED behavior

2014-04-22 00:47:29 +00:00

twinkie

twinkie: initialize INAs at startup

2014-06-18 21:11:15 +00:00

zinger

zinger: update current and voltage sensing gains

2014-06-20 18:27:16 +00:00

OWNERS

Add OWNERS files

2014-04-02 19:58:53 +00:00