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| author | Lars-Dominik Braun <lars@6xq.net> | 2014-09-23 17:24:57 +0200 |
|---|---|---|
| committer | Lars-Dominik Braun <lars@6xq.net> | 2014-09-30 15:15:01 +0200 |
| commit | 6708da2661d693f855b6f56d69af1e2fb8502463 (patch) | |
| tree | 5b8eac0f6f40932417519cbdcd229caeabd8eee8 /pwm.c | |
| parent | 69cb10f51321a2443a3314c40fb2b8556aa804c0 (diff) | |
| download | hourglass-6708da2661d693f855b6f56d69af1e2fb8502463.tar.gz hourglass-6708da2661d693f855b6f56d69af1e2fb8502463.tar.bz2 hourglass-6708da2661d693f855b6f56d69af1e2fb8502463.zip | |
Add wakeup source mechanism
Should reduce amount of cpu wakeups with expensive computations.
Diffstat (limited to 'pwm.c')
| -rw-r--r-- | pwm.c | 5 |
1 files changed, 3 insertions, 2 deletions
@@ -19,7 +19,6 @@ static const uint8_t offbits[2] = {(uint8_t) ~((1 << PB6) | (1 << PB7)), (uint8_t) ~((1 << PD2) | (1 << PD3) | (1 << PD4) | (1 << PD5) | (1 << PD6))}; ISR(TIMER0_COMPA_vect) { -#warning "speaker works now, led1 and 2 do not work" if (speakerCount > 0) { --speakerCount; /* stop speaker after beep */ @@ -36,6 +35,8 @@ ISR(TIMER0_COMPA_vect) { /* auto wrap-around */ count = (count+1) & (PWM_MAX_BRIGHTNESS-1); + + /* no wakeup */ } static uint8_t ledToArray (const uint8_t i) { @@ -105,7 +106,7 @@ void pwmSet (const uint8_t i, const uint8_t value) { } } -void speakerStart (const speakerMode mode) { +void speakerStart (const speakerMode mode __unused__) { /* 12.8ms */ speakerCount = 100; for (uint8_t i = 0; i < PWM_MAX_BRIGHTNESS; i += 2) { |