diff options
Diffstat (limited to 'timer.cpp')
-rw-r--r-- | timer.cpp | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/timer.cpp b/timer.cpp new file mode 100644 index 0000000..b4a1b12 --- /dev/null +++ b/timer.cpp @@ -0,0 +1,18 @@ +#include "timer.h" +#include "global.h" + +#include <avr/interrupt.h> + + +static volatile unsigned long ticks = 0; + + +SIGNAL(SIG_OVERFLOW0) { + ticks++; +} + +void sleep(unsigned long ms) { + unsigned long t = ticks + ms * (F_CPU/TIMER_PRESCALER/256000); + + while(ticks < t); +} |