Simon Glass 9bf1539d21 stm32: Reduce keyboard scan period from 10ms to 3ms ...

Experimentally it is possible to press a key on snow for only 4.8ms.
We should aim to scan more frequently to catch those who only just
touch the keys, or type very quickly.

It takes a little over 2ms to complete a keyboard scan at present.
We shold aim to reduce this, but for now, it seems safe to reduce the
default scanning frequency to 3ms.

BUG=chrome-os-partner:12179
TEST=manual
Type on keyboard on snow in browser, and see that we still get results
and the EC is stable.

Change-Id: I60827c33a58c34dd808504e58bca480bd61f5932
BRANCH=snow
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/34634
Reviewed-by: Randall Spangler <rspangler@chromium.org>

2012-10-05 10:41:20 -07:00

..

lm4

link: fix race condition enabling keyboard interrupt

2012-10-05 04:26:19 -07:00

stm32

stm32: Reduce keyboard scan period from 10ms to 3ms

2012-10-05 10:41:20 -07:00