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avr: Implement internal avr specific timer to handle 16bit overflows
Don't rely on the generic scheduler code to always have a timer no more than 1ms in the future. Instead, create an avr specific timer that will be called every 0x8000 ticks. This simplifies the generic code and it reduces the amount of code that needs to be run every millisecond. Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
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5 changed files with 31 additions and 26 deletions
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@ -30,12 +30,6 @@ timer_is_before(uint32_t time1, uint32_t time2)
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return (int32_t)(time1 - time2) < 0;
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}
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// Called by main code once every millisecond. (IRQs disabled.)
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void
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timer_periodic(void)
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{
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}
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static uint32_t timer_repeat_until;
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#define TIMER_IDLE_REPEAT_TICKS timer_from_us(500)
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#define TIMER_REPEAT_TICKS timer_from_us(100)
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