Rewrite digitalRead and digitalWrite in time critical code.
bengtmartensson opened this issue · 0 comments
bengtmartensson commented
These functions (which all "real professionals" hate :-)) do some constant computations at each invocation. These intermediate results can be kept as local variables in calling classes. Portability must not be sacrificed.
Possible usable libraries:
- https://github.com/greiman/DigitalIO
- https://github.com/pololu/fastgpio-arduino
- https://github.com/fenichelar/Pin
- https://github.com/hippymulehead/FastDigitalPin
- https://github.com/NicksonYap/digitalWriteFast
- https://github.com/bengtmartensson/DigitalIOPins ???
Branch: speedup.