diff options
| author | Keith Packard <keithp@keithp.com> | 2011-08-02 19:07:56 -0700 |
|---|---|---|
| committer | Keith Packard <keithp@keithp.com> | 2011-08-02 19:07:56 -0700 |
| commit | 6492218fc316f8cf6214a577807a8dd0a80a9b6a (patch) | |
| tree | 27c0c590dd237c481dbf576b709010c141ecab3b /src/ao_sample.c | |
| parent | 11a2bb8e28df7ed87542f2ee726f877971f5d52a (diff) | |
altos/altosui: Add pad orientation configure option
Allow TeleMetrum to be operated with the antenna pointing downwards on
the pad. This provides some additional flexibility when designing an
ebay.
The accelerometer calibration levels are flipped around to match, so
no re-calibration should be required.
Signed-off-by: Keith Packard <keithp@keithp.com>
Diffstat (limited to 'src/ao_sample.c')
| -rw-r--r-- | src/ao_sample.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/src/ao_sample.c b/src/ao_sample.c index ac156646..88ba58c5 100644 --- a/src/ao_sample.c +++ b/src/ao_sample.c @@ -179,6 +179,8 @@ ao_sample(void) * just dropped a bit of noise off the low end. */ ao_sample_accel = (uint16_t) ((((uint32_t) ao_sample_accel << 16) / (ao_accel_ref[ao_sample_adc] << 1))) >> 1; + if (ao_config.pad_orientation != AO_PAD_ORIENTATION_ANTENNA_UP) + ao_sample_accel = 0x7fff - ao_sample_accel; ao_adc->accel = ao_sample_accel; #endif #endif |