Arduino functions millis, micros and eventually some more to come
Dependents: DigitalCamera_OV5642_WIZwiki-W7500 BMC F746NG_TestAll Prelude_OV5642_dev
Arduino basic compatibility millis(), micros(), evtl. more to come.
micros() and millis() are uint32_t and have a correct overflow at 2^32-1. micros() has a granularity/resolution of 50. This can be changed by a define. 1 microsecond is not realistic because every count needs an irq. A resolution of 50 microseconds means 20KHz irq. That should not take away more than 1 percent overall processing time.
Diff: Arduino.cpp
- Revision:
- 3:abbc3308dfa1
- Parent:
- 2:215810c8e89e
--- a/Arduino.cpp Fri Mar 27 15:36:20 2015 +0000 +++ b/Arduino.cpp Mon Mar 30 13:50:18 2015 +0000 @@ -33,7 +33,7 @@ #endif // Period of IRQ in µs. This is the minimum (!) granularity of micros(). -#define TICKER_PERIOD_US (32uL) +#define TICKER_PERIOD_US (50uL) static volatile uint32_t MilliSeconds_u32, MicroSeconds_u32, MicroSecondsLast_u32;