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| author | Joey Castillo <jose.castillo@gmail.com> | 2021-09-18 14:26:18 -0400 |
|---|---|---|
| committer | Joey Castillo <jose.castillo@gmail.com> | 2021-09-18 14:50:20 -0400 |
| commit | 9baec592172efc3e21d93c7b0807fdffe2646ade (patch) | |
| tree | 0da40230fd41daf00e19b3b049e9533020c54edc | |
| parent | 5ff4a88374986f3e74dd17f2c17b8532c88debb1 (diff) | |
| download | Sensor-Watch-9baec592172efc3e21d93c7b0807fdffe2646ade.tar.gz Sensor-Watch-9baec592172efc3e21d93c7b0807fdffe2646ade.tar.bz2 Sensor-Watch-9baec592172efc3e21d93c7b0807fdffe2646ade.zip | |
support common anode LEDs
| -rw-r--r-- | watch-library/watch/watch_private.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/watch-library/watch/watch_private.c b/watch-library/watch/watch_private.c index d3da5426..bdf6b78a 100644 --- a/watch-library/watch/watch_private.c +++ b/watch-library/watch/watch_private.c @@ -88,6 +88,11 @@ void _watch_enable_tcc() { // period (i.e. a square wave with a 50% duty cycle). // * LEDs on CC[2] and CC[3] can be set to any value from 0 (off) to PER (fully on). hri_tcc_write_WAVE_reg(TCC0, TCC_WAVE_WAVEGEN_NPWM); + #ifdef WATCH_INVERT_LED_POLARITY + // This is here for the dev board, which uses a common anode LED (instead of common cathode like the actual watch). + hri_tcc_set_WAVE_reg(TCC0, (1 << (TCC_WAVE_POL0_Pos + WATCH_RED_TCC_CHANNEL)) | + (1 << (TCC_WAVE_POL0_Pos + WATCH_GREEN_TCC_CHANNEL))); + #endif // The buzzer will set the period depending on the tone it wants to play, but we have to set some period here to // get the LED working. Almost any period will do, tho it should be below 20000 (i.e. 50 Hz) to avoid flickering. hri_tcc_write_PER_reg(TCC0, 4096); |