diff options
| author | Shawn Nematbakhsh <shawnn@chromium.org> | 2016-06-30 17:38:10 -0700 |
|---|---|---|
| committer | chrome-bot <chrome-bot@chromium.org> | 2016-06-30 23:10:49 -0700 |
| commit | 4aba826dcf93eb67f30e816acbd02ceba530d335 (patch) | |
| tree | 5ed53ce258b5b9789612700fcac1f20a6648ac78 | |
| parent | d1138722dd6096a067b089b49229c6fe5d15b1c7 (diff) | |
| download | chrome-ec-4aba826dcf93eb67f30e816acbd02ceba530d335.tar.gz | |
kevin / gru: Wait to allow ADC 'version' cap to sufficiently charge
Allow at least 10ms for the 'version' cap to charge in order to have a
voltage on the ADC pin that reflects our voltage divider circuit.
BUG=chrome-os-partner:54768
BRANCH=None
TEST=Manual on kevin. Run 'ver', verify that rev3 board is recognized as
version 3.
Change-Id: I1f3326f4c99a165d77363834d5671aa357a89007
Signed-off-by: Shawn Nematbakhsh <shawnn@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/357970
Commit-Ready: Shawn N <shawnn@chromium.org>
Tested-by: Shawn N <shawnn@chromium.org>
Reviewed-by: Philip Chen <philipchen@chromium.org>
| -rw-r--r-- | board/kevin/board.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/board/kevin/board.c b/board/kevin/board.c index dd6daee24d..924f7ca3b4 100644 --- a/board/kevin/board.c +++ b/board/kevin/board.c @@ -313,7 +313,7 @@ int board_get_version(void) gpio_set_level(GPIO_EC_BOARD_ID_EN_L, 0); /* Wait to allow cap charge */ - msleep(1); + msleep(10); mv = adc_read_channel(ADC_BOARD_ID); gpio_set_level(GPIO_EC_BOARD_ID_EN_L, 1); |