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| author | Wai-Hong Tam <waihong@google.com> | 2020-05-14 09:54:23 -0700 |
|---|---|---|
| committer | Commit Bot <commit-bot@chromium.org> | 2020-05-16 08:33:36 +0000 |
| commit | 400ea24bb0d0103f04749a5508de755ce544f467 (patch) | |
| tree | d1efa931cf370740c9351082bc81f0785a6f2c00 /board/lazor | |
| parent | d3f7940da1510b6dc9726556ce483aff01833c38 (diff) | |
| download | chrome-ec-400ea24bb0d0103f04749a5508de755ce544f467.tar.gz | |
Lazor: Correct the lid g-sensor's matrix configuration
The lid g-sensor placement is like:
+------------------+
| |
| +----+ |
| | | |
| |O | | O is the pin 1 marker,
| +----+ | which faces to the user.
+------------------+
/ /
/ /
/ /
/ /
+------------------+
The sensor's coordinate system is:
x <-----+
/|
/ |
v v
z y
The standard reference frame is:
y
^
|
|
+-----> x
/
/
v
z
So the matrix contributing to the standard reference frame should be:
{ { -1, 0, 0},
{ 0, -1, 0},
{ 0, 0, 1} }
BRANCH=None
BUG=b:155853349
TEST=Used 'accelinfo on' command to check the g-sensor's values.
Change-Id: I98aa49665659374d0fda0d8a3c7622ec5f9a27bc
Signed-off-by: Wai-Hong Tam <waihong@google.com>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2202164
Reviewed-by: Alexandru M Stan <amstan@chromium.org>
Diffstat (limited to 'board/lazor')
| -rw-r--r-- | board/lazor/board.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/board/lazor/board.c b/board/lazor/board.c index 71d07b1c62..f22ec13871 100644 --- a/board/lazor/board.c +++ b/board/lazor/board.c @@ -430,9 +430,9 @@ const mat33_fp_t base_standard_ref = { }; static const mat33_fp_t lid_standard_ref = { - { 0, FLOAT_TO_FP(1), 0}, - { FLOAT_TO_FP(1), 0, 0}, - { 0, 0, FLOAT_TO_FP(-1)} + { FLOAT_TO_FP(-1), 0, 0}, + { 0, FLOAT_TO_FP(-1), 0}, + { 0, 0, FLOAT_TO_FP(1)} }; struct motion_sensor_t motion_sensors[] = { |