flash.h File Reference

Flash memory utilities. More...

#include "boards/io.h"
#include <avr/pgmspace.h>

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Classes
class	flash::FlashReader< T >
	Functor reading items from an address in AVR Flash memory (PROGMEM). More...

Namespaces
namespace	flash
	Defines API to handle flash memory storage.

Macros
#define	F(ptr)
	Force string constant to be stored as flash storage. More...

Functions
template<typename T = uint8_t>
T *	flash::read_flash (uint16_t address, T *buffer, uint8_t size)
	Read flash memory content at given address into buffer. More...
template<typename T >
T &	flash::read_flash (uint16_t address, T &item)
	Read flash memory content at given address into item. More...
template<typename T >
T &	flash::read_flash (const T *address, T &item)
	Read flash memory content at given address into item. More...

Detailed Description

Flash memory utilities.

Definition in file flash.h.

Macro Definition Documentation

F

#define F

(

ptr

)

Value:

    (__extension__({                             \
        static const char __c[] PROGMEM = (ptr); \
        (const flash::FlashStorage*) &__c[0];    \
    }))

Force string constant to be stored as flash storage.

Here is a classical usage here:

char buffer[64];
streams::ostreambuf out{buffer};
out << F("Hello, world!\n");

Parameters

ptr	the string to be automatically stored on flash

See also

streams::ostreambuf::sputn(const flash::FlashStorage*)

Definition at line 150 of file flash.h.