Code:
/* Copyright (c) 2002, 2003, 2004, 2007 Marek Michalkiewicz
Copyright (c) 2005, 2006 Bjoern Haase
Copyright (c) 2008 Atmel Corporation
Copyright (c) 2008 Wouter van Gulik
Copyright (c) 2009 Dmitry Xmelkov
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in
the documentation and/or other materials provided with the
distribution.
* Neither the name of the copyright holders nor the names of
contributors may be used to endorse or promote products derived
from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
POSSIBILITY OF SUCH DAMAGE. */
/* $Id: eeprom.h,v 1.21.2.13 2009/12/03 18:38:59 arcanum Exp $ */
#ifndef _AVR_EEPROM_H_
#define _AVR_EEPROM_H_ 1
#include <avr/io.h>
#if !E2END && !defined(__DOXYGEN__) && !defined(__COMPILING_AVR_LIBC__)
# warning "Device does not have EEPROM available."
#else
#ifndef __DOXYGEN__
#if defined (__AVR_AT94K__)
# define _EEPROM_SUFFIX _at94k
#elif defined (__AVR_AT43USB320__)
# define _EEPROM_SUFFIX _43u320
#elif defined (__AVR_AT43USB355__)
# define _EEPROM_SUFFIX _43u355
#elif defined (__AVR_AT76C711__)
# define _EEPROM_SUFFIX _76c711
#elif defined (__AVR_AT86RF401__)
# define _EEPROM_SUFFIX _86r401
#elif defined (__AVR_AT90PWM1__)
# define _EEPROM_SUFFIX _90pwm1
#elif defined (__AVR_AT90PWM2__)
# define _EEPROM_SUFFIX _90pwm2
#elif defined (__AVR_AT90PWM2B__)
# define _EEPROM_SUFFIX _90pwm2b
#elif defined (__AVR_AT90PWM3__)
# define _EEPROM_SUFFIX _90pwm3
#elif defined (__AVR_AT90PWM3B__)
# define _EEPROM_SUFFIX _90pwm3b
#elif defined (__AVR_AT90PWM216__)
# define _EEPROM_SUFFIX _90pwm216
#elif defined (__AVR_AT90PWM316__)
# define _EEPROM_SUFFIX _90pwm316
#elif defined (__AVR_AT90PWM81__)
# define _EEPROM_SUFFIX _90pwm81
#elif defined (__AVR_ATmega16M1__)
# define _EEPROM_SUFFIX _m16m1
#elif defined (__AVR_ATmega8U2__)
# define _EEPROM_SUFFIX _m8u2
#elif defined (__AVR_ATmega16U2__)
# define _EEPROM_SUFFIX _m16u2
#elif defined (__AVR_ATmega16U4__)
# define _EEPROM_SUFFIX _m16u4
#elif defined (__AVR_ATmega32C1__)
# define _EEPROM_SUFFIX _m32c1
#elif defined (__AVR_ATmega32M1__)
# define _EEPROM_SUFFIX _m32m1
#elif defined (__AVR_ATmega32U2__)
# define _EEPROM_SUFFIX _m32u2
#elif defined (__AVR_ATmega32U4__)
# define _EEPROM_SUFFIX _m32u4
#elif defined (__AVR_ATmega32U6__)
# define _EEPROM_SUFFIX _m32u6
#elif defined (__AVR_ATmega64C1__)
# define _EEPROM_SUFFIX _m64c1
#elif defined (__AVR_ATmega64M1__)
# define _EEPROM_SUFFIX _m64m1
#elif defined (__AVR_ATmega128__)
# define _EEPROM_SUFFIX _m128
#elif defined (__AVR_ATmega1280__)
# define _EEPROM_SUFFIX _m1280
#elif defined (__AVR_ATmega1281__)
# define _EEPROM_SUFFIX _m1281
#elif defined (__AVR_ATmega1284P__)
# define _EEPROM_SUFFIX _m1284p
#elif defined (__AVR_ATmega128RFA1__)
# define _EEPROM_SUFFIX _m128rfa1
#elif defined (__AVR_ATmega2560__)
# define _EEPROM_SUFFIX _m2560
#elif defined (__AVR_ATmega2561__)
# define _EEPROM_SUFFIX _m2561
#elif defined (__AVR_AT90CAN32__)
# define _EEPROM_SUFFIX _can32
#elif defined (__AVR_AT90CAN64__)
# define _EEPROM_SUFFIX _can64
#elif defined (__AVR_AT90CAN128__)
# define _EEPROM_SUFFIX _can128
#elif defined (__AVR_AT90USB82__)
# define _EEPROM_SUFFIX _usb82
#elif defined (__AVR_AT90USB162__)
# define _EEPROM_SUFFIX _usb162
#elif defined (__AVR_AT90USB646__)
# define _EEPROM_SUFFIX _usb646
#elif defined (__AVR_AT90USB647__)
# define _EEPROM_SUFFIX _usb647
#elif defined (__AVR_AT90USB1286__)
# define _EEPROM_SUFFIX _usb1286
#elif defined (__AVR_AT90USB1287__)
# define _EEPROM_SUFFIX _usb1287
#elif defined (__AVR_ATmega64__)
# define _EEPROM_SUFFIX _m64
#elif defined (__AVR_ATmega640__)
# define _EEPROM_SUFFIX _m640
#elif defined (__AVR_ATmega644__)
# define _EEPROM_SUFFIX _m644
#elif defined (__AVR_ATmega644A__)
# define _EEPROM_SUFFIX _m644a
#elif defined (__AVR_ATmega644P__)
# define _EEPROM_SUFFIX _m644p
#elif defined (__AVR_ATmega644PA__)
# define _EEPROM_SUFFIX _m644pa
#elif defined (__AVR_ATmega645__)
# define _EEPROM_SUFFIX _m645
#elif defined (__AVR_ATmega645A__)
# define _EEPROM_SUFFIX _m645a
#elif defined (__AVR_ATmega645P__)
# define _EEPROM_SUFFIX _m645p
#elif defined (__AVR_ATmega6450__)
# define _EEPROM_SUFFIX _m6450
#elif defined (__AVR_ATmega6450A__)
# define _EEPROM_SUFFIX _m6450a
#elif defined (__AVR_ATmega6450P__)
# define _EEPROM_SUFFIX _m6450p
#elif defined (__AVR_ATmega649__)
# define _EEPROM_SUFFIX _m649
#elif defined (__AVR_ATmega649A__)
# define _EEPROM_SUFFIX _m649a
#elif defined (__AVR_ATmega649P__)
# define _EEPROM_SUFFIX _m649p
#elif defined (__AVR_ATmega6490__)
# define _EEPROM_SUFFIX _m6490
#elif defined (__AVR_ATmega6490A__)
# define _EEPROM_SUFFIX _m6490a
#elif defined (__AVR_ATmega6490P__)
# define _EEPROM_SUFFIX _m6490p
#elif defined (__AVR_ATmega103__)
# define _EEPROM_SUFFIX _m103
#elif defined (__AVR_ATmega32__)
# define _EEPROM_SUFFIX _m32
#elif defined (__AVR_ATmega323__)
# define _EEPROM_SUFFIX _m323
#elif defined (__AVR_ATmega324A__)
# define _EEPROM_SUFFIX _m324a
#elif defined (__AVR_ATmega324P__)
# define _EEPROM_SUFFIX _m324p
#elif defined (__AVR_ATmega324PA__)
# define _EEPROM_SUFFIX _m324pa
#elif defined (__AVR_ATmega325__)
# define _EEPROM_SUFFIX _m325
#elif defined (__AVR_ATmega325P__)
# define _EEPROM_SUFFIX _m325p
#elif defined (__AVR_ATmega3250__)
# define _EEPROM_SUFFIX _m3250
#elif defined (__AVR_ATmega3250P__)
# define _EEPROM_SUFFIX _m3250p
#elif defined (__AVR_ATmega328__)
# define _EEPROM_SUFFIX _m328
#elif defined (__AVR_ATmega328P__)
# define _EEPROM_SUFFIX _m328p
#elif defined (__AVR_ATmega329__)
# define _EEPROM_SUFFIX _m329
#elif defined (__AVR_ATmega329P__)
# define _EEPROM_SUFFIX _m329p
#elif defined (__AVR_ATmega329PA__)
# define _EEPROM_SUFFIX _m329pa
#elif defined (__AVR_ATmega3290__)
# define _EEPROM_SUFFIX _m3290
#elif defined (__AVR_ATmega3290P__)
# define _EEPROM_SUFFIX _m3290p
#elif defined (__AVR_ATmega32HVB__)
# define _EEPROM_SUFFIX _m32hvb
#elif defined (__AVR_ATmega64HVE__)
# define _EEPROM_SUFFIX _m64hve
#elif defined (__AVR_ATmega406__)
# define _EEPROM_SUFFIX _m406
#elif defined (__AVR_ATmega16__)
# define _EEPROM_SUFFIX _m16
#elif defined (__AVR_ATmega16A__)
# define _EEPROM_SUFFIX _m16a
#elif defined (__AVR_ATmega161__)
# define _EEPROM_SUFFIX _m161
#elif defined (__AVR_ATmega162__)
# define _EEPROM_SUFFIX _m162
#elif defined (__AVR_ATmega163__)
# define _EEPROM_SUFFIX _m163
#elif defined (__AVR_ATmega164__)
# define _EEPROM_SUFFIX _m164
#elif defined (__AVR_ATmega164P__)
# define _EEPROM_SUFFIX _m164p
#elif defined (__AVR_ATmega165__)
# define _EEPROM_SUFFIX _m165
#elif defined (__AVR_ATmega165A__)
# define _EEPROM_SUFFIX _m165a
#elif defined (__AVR_ATmega165P__)
# define _EEPROM_SUFFIX _m165p
#elif defined (__AVR_ATmega168__)
# define _EEPROM_SUFFIX _m168
#elif defined (__AVR_ATmega168A__)
# define _EEPROM_SUFFIX _m168a
#elif defined (__AVR_ATmega168P__)
# define _EEPROM_SUFFIX _m168p
#elif defined (__AVR_ATmega169__)
# define _EEPROM_SUFFIX _m169
#elif defined (__AVR_ATmega169A__)
# define _EEPROM_SUFFIX _m169a
#elif defined (__AVR_ATmega169P__)
# define _EEPROM_SUFFIX _m169p
#elif defined (__AVR_ATmega169PA__)
# define _EEPROM_SUFFIX _m169pa
#elif defined (__AVR_ATmega8HVA__)
# define _EEPROM_SUFFIX _m8hva
#elif defined (__AVR_ATmega16HVA__)
# define _EEPROM_SUFFIX _m16hva
#elif defined (__AVR_ATmega16HVA2__)
# define _EEPROM_SUFFIX _m16hva2
#elif defined (__AVR_ATmega16HVB__)
# define _EEPROM_SUFFIX _m16hvb
#elif defined (__AVR_ATmega8__)
# define _EEPROM_SUFFIX _m8
#elif defined (__AVR_ATmega48__)
# define _EEPROM_SUFFIX _m48
#elif defined (__AVR_ATmega48A__)
# define _EEPROM_SUFFIX _m48a
#elif defined (__AVR_ATmega48P__)
# define _EEPROM_SUFFIX _m48p
#elif defined (__AVR_ATmega88__)
# define _EEPROM_SUFFIX _m88
#elif defined (__AVR_ATmega88A__)
# define _EEPROM_SUFFIX _m88a
#elif defined (__AVR_ATmega88P__)
# define _EEPROM_SUFFIX _m88p
#elif defined (__AVR_ATmega88PA__)
# define _EEPROM_SUFFIX _m88pa
#elif defined (__AVR_ATmega8515__)
# define _EEPROM_SUFFIX _m8515
#elif defined (__AVR_ATmega8535__)
# define _EEPROM_SUFFIX _m8535
#elif defined (__AVR_AT90S8535__)
# define _EEPROM_SUFFIX _8535
#elif defined (__AVR_AT90C8534__)
# define _EEPROM_SUFFIX _8534
#elif defined (__AVR_AT90S8515__)
# define _EEPROM_SUFFIX _8515
#elif defined (__AVR_AT90S4434__)
# define _EEPROM_SUFFIX _4434
#elif defined (__AVR_AT90S4433__)
# define _EEPROM_SUFFIX _4433
#elif defined (__AVR_AT90S4414__)
# define _EEPROM_SUFFIX _4414
#elif defined (__AVR_ATtiny22__)
# define _EEPROM_SUFFIX _tn22
#elif defined (__AVR_ATtiny26__)
# define _EEPROM_SUFFIX _tn26
#elif defined (__AVR_AT90S2343__)
# define _EEPROM_SUFFIX _2343
#elif defined (__AVR_AT90S2333__)
# define _EEPROM_SUFFIX _2333
#elif defined (__AVR_AT90S2323__)
# define _EEPROM_SUFFIX _2323
#elif defined (__AVR_AT90S2313__)
# define _EEPROM_SUFFIX _2313
#elif defined (__AVR_ATtiny2313__)
# define _EEPROM_SUFFIX _tn2313
#elif defined (__AVR_ATtiny2313A__)
# define _EEPROM_SUFFIX _tn2313a
#elif defined (__AVR_ATtiny4313__)
# define _EEPROM_SUFFIX _tn4313
#elif defined (__AVR_ATtiny13__)
# define _EEPROM_SUFFIX _tn13
#elif defined (__AVR_ATtiny13A__)
# define _EEPROM_SUFFIX _tn13a
#elif defined (__AVR_ATtiny25__)
# define _EEPROM_SUFFIX _tn25
#elif defined (__AVR_ATtiny45__)
# define _EEPROM_SUFFIX _tn45
#elif defined (__AVR_ATtiny85__)
# define _EEPROM_SUFFIX _tn85
#elif defined (__AVR_ATtiny24__)
# define _EEPROM_SUFFIX _tn24
#elif defined (__AVR_ATtiny24A__)
# define _EEPROM_SUFFIX _tn24a
#elif defined (__AVR_ATtiny44__)
# define _EEPROM_SUFFIX _tn44
#elif defined (__AVR_ATtiny44A__)
# define _EEPROM_SUFFIX _tn44a
#elif defined (__AVR_ATtiny84__)
# define _EEPROM_SUFFIX _tn84
#elif defined (__AVR_ATtiny261__)
# define _EEPROM_SUFFIX _tn261
#elif defined (__AVR_ATtiny261A__)
# define _EEPROM_SUFFIX _tn261a
#elif defined (__AVR_ATtiny461__)
# define _EEPROM_SUFFIX _tn461
#elif defined (__AVR_ATtiny461A__)
# define _EEPROM_SUFFIX _tn461a
#elif defined (__AVR_ATtiny861__)
# define _EEPROM_SUFFIX _tn861
#elif defined (__AVR_ATtiny861A__)
# define _EEPROM_SUFFIX _tn861a
#elif defined (__AVR_ATtiny43U__)
# define _EEPROM_SUFFIX _tn43u
#elif defined (__AVR_ATtiny48__)
# define _EEPROM_SUFFIX _tn48
#elif defined (__AVR_ATtiny88__)
# define _EEPROM_SUFFIX _tn88
#elif defined (__AVR_ATtiny87__)
# define _EEPROM_SUFFIX _tn87
#elif defined (__AVR_ATtiny167__)
# define _EEPROM_SUFFIX _tn167
#elif defined (__AVR_AT90SCR100__)
# define _EEPROM_SUFFIX _90scr100
#elif defined (__AVR_ATxmega16A4__)
# define _EEPROM_SUFFIX _x16a4
#elif defined (__AVR_ATxmega16D4__)
# define _EEPROM_SUFFIX _x16d4
#elif defined (__AVR_ATxmega32A4__)
# define _EEPROM_SUFFIX _x32a4
#elif defined (__AVR_ATxmega32D4__)
# define _EEPROM_SUFFIX _x32d4
#elif defined (__AVR_ATxmega64A1__)
# define _EEPROM_SUFFIX _x64a1
#elif defined (__AVR_ATxmega64A3__)
# define _EEPROM_SUFFIX _x64a3
#elif defined (__AVR_ATxmega64D3__)
# define _EEPROM_SUFFIX _x64d3
#elif defined (__AVR_ATxmega128A1__)
# define _EEPROM_SUFFIX _x128a1
#elif defined (__AVR_ATxmega128A3__)
# define _EEPROM_SUFFIX _x128a3
#elif defined (__AVR_ATxmega128D3__)
# define _EEPROM_SUFFIX _x128d3
#elif defined (__AVR_ATxmega192A3__)
# define _EEPROM_SUFFIX _x192a3
#elif defined (__AVR_ATxmega192D3__)
# define _EEPROM_SUFFIX _x192d3
#elif defined (__AVR_ATxmega256A3__)
# define _EEPROM_SUFFIX _x256a3
#elif defined (__AVR_ATxmega256A3B__)
# define _EEPROM_SUFFIX _x256a3b
#elif defined (__AVR_ATxmega256D3__)
# define _EEPROM_SUFFIX _x256d3
#elif defined (__AVR_ATA6289__)
# define _EEPROM_SUFFIX _a6289
/* AVR1: the following only supported for assembler programs */
#elif defined (__AVR_ATtiny28__)
# define _EEPROM_SUFFIX _tn28
#elif defined (__AVR_AT90S1200__)
# define _EEPROM_SUFFIX _1200
#elif defined (__AVR_ATtiny15__)
# define _EEPROM_SUFFIX _tn15
#elif defined (__AVR_ATtiny12__)
# define _EEPROM_SUFFIX _tn12
#elif defined (__AVR_ATtiny11__)
# define _EEPROM_SUFFIX _tn11
#else
# define _EEPROM_SUFFIX _UNKNOWN
#endif
#define _EEPROM_CONCAT1(s1, s2) s1 ## s2
#define _EEPROM_CONCAT2(s1, s2) _EEPROM_CONCAT1 (s1, s2)
#define eeprom_read_byte _EEPROM_CONCAT2 (__eerd_byte, _EEPROM_SUFFIX)
#define eeprom_read_word _EEPROM_CONCAT2 (__eerd_word, _EEPROM_SUFFIX)
#define eeprom_read_dword _EEPROM_CONCAT2 (__eerd_dword, _EEPROM_SUFFIX)
#define eeprom_read_float _EEPROM_CONCAT2 (__eerd_float, _EEPROM_SUFFIX)
#define eeprom_read_block _EEPROM_CONCAT2 (__eerd_block, _EEPROM_SUFFIX)
#define eeprom_write_byte _EEPROM_CONCAT2 (__eewr_byte, _EEPROM_SUFFIX)
#define eeprom_write_word _EEPROM_CONCAT2 (__eewr_word, _EEPROM_SUFFIX)
#define eeprom_write_dword _EEPROM_CONCAT2 (__eewr_dword, _EEPROM_SUFFIX)
#define eeprom_write_float _EEPROM_CONCAT2 (__eewr_float, _EEPROM_SUFFIX)
#define eeprom_write_block _EEPROM_CONCAT2 (__eewr_block, _EEPROM_SUFFIX)
#define eeprom_update_byte _EEPROM_CONCAT2 (__eeupd_byte, _EEPROM_SUFFIX)
#define eeprom_update_word _EEPROM_CONCAT2 (__eeupd_word, _EEPROM_SUFFIX)
#define eeprom_update_dword _EEPROM_CONCAT2 (__eeupd_dword, _EEPROM_SUFFIX)
#define eeprom_update_float _EEPROM_CONCAT2 (__eeupd_float, _EEPROM_SUFFIX)
#define eeprom_update_block _EEPROM_CONCAT2 (__eeupd_block, _EEPROM_SUFFIX)
#endif /* !__DOXYGEN__ */
#ifndef __ASSEMBLER__
#include <stddef.h> /* size_t */
#include <stdint.h>
/** \defgroup avr_eeprom <avr/eeprom.h>: EEPROM handling
\code #include <avr/eeprom.h> \endcode
This header file declares the interface to some simple library
routines suitable for handling the data EEPROM contained in the
AVR microcontrollers. The implementation uses a simple polled
mode interface. Applications that require interrupt-controlled
EEPROM access to ensure that no time will be wasted in spinloops
will have to deploy their own implementation.
\par Notes:
- In addition to the write functions there is a set of update ones.
This functions read each byte first and skip the burning if the
old value is the same with new. The scaning direction is from
high address to low, to obtain quick return in common cases.
- All of the read/write functions first make sure the EEPROM is
ready to be accessed. Since this may cause long delays if a
write operation is still pending, time-critical applications
should first poll the EEPROM e. g. using eeprom_is_ready() before
attempting any actual I/O. But this functions are not wait until
SELFPRGEN in SPMCSR becomes zero. Do this manually, if your
softwate contains the Flash burning.
- As these functions modify IO registers, they are known to be
non-reentrant. If any of these functions are used from both,
standard and interrupt context, the applications must ensure
proper protection (e.g. by disabling interrupts before accessing
them).
- All write functions force erase_and_write programming mode.
- For Xmega the EEPROM start address is 0, like other architectures.
The reading functions add the 0x2000 value to use EEPROM mapping into
data space.
*/
#ifdef __cplusplus
extern "C" {
#endif
#ifndef __ATTR_PURE__
# ifdef __DOXYGEN__
# define __ATTR_PURE__
# else
# define __ATTR_PURE__ __attribute__((__pure__))
# endif
#endif
/** \def EEMEM
\ingroup avr_eeprom
Attribute expression causing a variable to be allocated within the
.eeprom section. */
#define EEMEM __attribute__((section(".eeprom")))
/** \def eeprom_is_ready
\ingroup avr_eeprom
\returns 1 if EEPROM is ready for a new read/write operation, 0 if not.
*/
#if defined (__DOXYGEN__)
# define eeprom_is_ready()
#elif defined (__AVR_XMEGA__) && __AVR_XMEGA__
# define eeprom_is_ready() bit_is_clear (NVM_STATUS, NVM_NVMBUSY_bp)
#elif defined (DEECR)
# define eeprom_is_ready() bit_is_clear (DEECR, BSY)
#elif defined (EEPE)
# define eeprom_is_ready() bit_is_clear (EECR, EEPE)
#else
# define eeprom_is_ready() bit_is_clear (EECR, EEWE)
#endif
/** \def eeprom_busy_wait
\ingroup avr_eeprom
Loops until the eeprom is no longer busy.
\returns Nothing.
*/
#define eeprom_busy_wait() do {} while (!eeprom_is_ready())
/** \ingroup avr_eeprom
Read one byte from EEPROM address \a __p.
*/
uint8_t eeprom_read_byte (const uint8_t *__p) __ATTR_PURE__;
/** \ingroup avr_eeprom
Read one 16-bit word (little endian) from EEPROM address \a __p.
*/
uint16_t eeprom_read_word (const uint16_t *__p) __ATTR_PURE__;
/** \ingroup avr_eeprom
Read one 32-bit double word (little endian) from EEPROM address \a __p.
*/
uint32_t eeprom_read_dword (const uint32_t *__p) __ATTR_PURE__;
/** \ingroup avr_eeprom
Read one float value (little endian) from EEPROM address \a __p.
*/
float eeprom_read_float (const float *__p) __ATTR_PURE__;
/** \ingroup avr_eeprom
Read a block of \a __n bytes from EEPROM address \a __src to SRAM
\a __dst.
*/
void eeprom_read_block (void *__dst, const void *__src, size_t __n);
/** \ingroup avr_eeprom
Write a byte \a __value to EEPROM address \a __p.
*/
void eeprom_write_byte (uint8_t *__p, uint8_t __value);
/** \ingroup avr_eeprom
Write a word \a __value to EEPROM address \a __p.
*/
void eeprom_write_word (uint16_t *__p, uint16_t __value);
/** \ingroup avr_eeprom
Write a 32-bit double word \a __value to EEPROM address \a __p.
*/
void eeprom_write_dword (uint32_t *__p, uint32_t __value);
/** \ingroup avr_eeprom
Write a float \a __value to EEPROM address \a __p.
*/
void eeprom_write_float (float *__p, float __value);
/** \ingroup avr_eeprom
Write a block of \a __n bytes to EEPROM address \a __dst from \a __src.
\note The argument order is mismatch with common functions like strcpy().
*/
void eeprom_write_block (const void *__src, void *__dst, size_t __n);
/** \ingroup avr_eeprom
Update a byte \a __value to EEPROM address \a __p.
*/
void eeprom_update_byte (uint8_t *__p, uint8_t __value);
/** \ingroup avr_eeprom
Update a word \a __value to EEPROM address \a __p.
*/
void eeprom_update_word (uint16_t *__p, uint16_t __value);
/** \ingroup avr_eeprom
Update a 32-bit double word \a __value to EEPROM address \a __p.
*/
void eeprom_update_dword (uint32_t *__p, uint32_t __value);
/** \ingroup avr_eeprom
Update a float \a __value to EEPROM address \a __p.
*/
void eeprom_update_float (float *__p, float __value);
/** \ingroup avr_eeprom
Update a block of \a __n bytes to EEPROM address \a __dst from \a __src.
\note The argument order is mismatch with common functions like strcpy().
*/
void eeprom_update_block (const void *__src, void *__dst, size_t __n);
/** \name IAR C compatibility defines */
/*@{*/
/** \def _EEPUT
\ingroup avr_eeprom
Write a byte to EEPROM. Compatibility define for IAR C. */
#define _EEPUT(addr, val) eeprom_write_byte ((uint8_t *)(addr), (uint8_t)(val))
/** \def __EEPUT
\ingroup avr_eeprom
Write a byte to EEPROM. Compatibility define for IAR C. */
#define __EEPUT(addr, val) eeprom_write_byte ((uint8_t *)(addr), (uint8_t)(val))
/** \def _EEGET
\ingroup avr_eeprom
Read a byte from EEPROM. Compatibility define for IAR C. */
#define _EEGET(var, addr) (var) = eeprom_read_byte ((const uint8_t *)(addr))
/** \def __EEGET
\ingroup avr_eeprom
Read a byte from EEPROM. Compatibility define for IAR C. */
#define __EEGET(var, addr) (var) = eeprom_read_byte ((const uint8_t *)(addr))
/*@}*/
#ifdef __cplusplus
}
#endif
#endif /* !__ASSEMBLER__ */
#endif /* E2END || defined(__DOXYGEN__) || defined(__COMPILING_AVR_LIBC__) */
#endif /* !_AVR_EEPROM_H_ */
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Zitat von rogerberglen
Hoffentlich liegt das Ziel auch am Weg 
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