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EpoxyMockDigitalWriteFast Library

This is a simple mock for the digitalWriteFast library (https://github.com/NicksonYap/digitalWriteFast) to allow code written against that library to compile under EpoxyDuino. It provides stubs for the 3 functions provided by the digitalWriteFast library:

  • digitalWriteFast()
  • pinModeFast()
  • digitalReadFast()

Usage

Since the digitalWriteFast library works only for AVR processors, we would normally write some conditional code like this:

#if defined(ARDUINO_ARCH_AVR)
  #include <digitalWriteFast.h>
#endif

...

#define USE_DIGITAL_WRITE_FAST 0

void doSomething() {
  ...
  #if USE_DIGITAL_WRITE_FAST
    digitalWriteFast(PIN, LOW);
  #else
    digitalWrite(PIN, LOW);
  #endif
  ...
}

The problem is that this code will not compile under EpoxyDuino.

To fix that problem, change the code to look like this:

#if defined(ARDUINO_ARCH_AVR) || defined(EPOXY_DUINO)
  #include <digitalWriteFast.h>
#endif
...

Then add EpoxyMockDigitalWriteFast to the ARDUINO_LIBS in the EpoxyDuino Makefile:

APP_NAME := MyApp
ARDUINO_LIBS := EpoxyMockDigitalWriteFast ...
include ../../../../EpoxyDuino.mk