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CommandStation-EX/FSH.h

31 lines
758 B
C

#ifndef FSH_h
#define FSH_h
/* This is an architecture support file to manage the differences
* between the nano/uno.mega and the later nanoEvery, unoWifiRev2 etc
*
* IMPORTANT:
* To maintain portability the main code should NOT contain ANY references
* to the following:
*
* __FlashStringHelper Use FSH instead.
* PROGMEM use FLASH instead
* pgm_read_byte_near use GETFLASH instead.
*
*/
#include <Arduino.h>
#if defined(ARDUINO_ARCH_MEGAAVR)
#ifdef F
#undef F
#endif
#define F(str) (str)
typedef char FSH;
#define GETFLASH(addr) (*(const unsigned char *)(addr))
#define FLASH
#else
typedef __FlashStringHelper FSH;
#define GETFLASH(addr) pgm_read_byte_near(addr)
#define FLASH PROGMEM
#endif
#endif