AVR-LibC
2.2.0
Standard C library for AVR-GCC
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Macros | |
#define | EEMEM __attribute__((__section__(".eeprom"))) |
#define | eeprom_is_ready() |
#define | eeprom_busy_wait() do {} while (!eeprom_is_ready()) |
Functions | |
uint8_t | eeprom_read_byte (const uint8_t *__p) |
uint16_t | eeprom_read_word (const uint16_t *__p) |
uint32_t | eeprom_read_dword (const uint32_t *__p) |
uint64_t | eeprom_read_qword (const uint64_t *__p) |
float | eeprom_read_float (const float *__p) |
double | eeprom_read_double (const double *__p) |
long double | eeprom_read_long_double (const long double *__p) |
void | eeprom_read_block (void *__dst, const void *__src, size_t __n) |
void | eeprom_write_byte (uint8_t *__p, uint8_t __value) |
void | eeprom_write_word (uint16_t *__p, uint16_t __value) |
void | eeprom_write_dword (uint32_t *__p, uint32_t __value) |
void | eeprom_write_qword (uint64_t *__p, uint64_t __value) |
void | eeprom_write_float (float *__p, float __value) |
void | eeprom_write_double (double *__p, double __value) |
void | eeprom_write_long_double (long double *__p, long double __value) |
void | eeprom_write_block (const void *__src, void *__dst, size_t __n) |
void | eeprom_update_byte (uint8_t *__p, uint8_t __value) |
void | eeprom_update_word (uint16_t *__p, uint16_t __value) |
void | eeprom_update_dword (uint32_t *__p, uint32_t __value) |
void | eeprom_update_qword (uint64_t *__p, uint64_t __value) |
void | eeprom_update_float (float *__p, float __value) |
void | eeprom_update_double (double *__p, double __value) |
void | eeprom_update_long_double (long double *__p, long double __value) |
void | eeprom_update_block (const void *__src, void *__dst, size_t __n) |
IAR C compatibility defines | |
#define | _EEPUT(addr, val) eeprom_write_byte ((uint8_t *)(addr), (uint8_t)(val)) |
#define | __EEPUT(addr, val) eeprom_write_byte ((uint8_t *)(addr), (uint8_t)(val)) |
#define | _EEGET(var, addr) (var) = eeprom_read_byte ((const uint8_t *)(addr)) |
#define | __EEGET(var, addr) (var) = eeprom_read_byte ((const uint8_t *)(addr)) |
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.
#define __EEGET | ( | var, | |
addr | |||
) | (var) = eeprom_read_byte ((const uint8_t *)(addr)) |
Read a byte from EEPROM. Compatibility define for IAR C.
#define __EEPUT | ( | addr, | |
val | |||
) | eeprom_write_byte ((uint8_t *)(addr), (uint8_t)(val)) |
Write a byte to EEPROM. Compatibility define for IAR C.
#define _EEGET | ( | var, | |
addr | |||
) | (var) = eeprom_read_byte ((const uint8_t *)(addr)) |
Read a byte from EEPROM. Compatibility define for IAR C.
#define _EEPUT | ( | addr, | |
val | |||
) | eeprom_write_byte ((uint8_t *)(addr), (uint8_t)(val)) |
Write a byte to EEPROM. Compatibility define for IAR C.
#define EEMEM __attribute__((__section__(".eeprom"))) |
Attribute expression causing a variable to be allocated within the .eeprom section.
#define eeprom_busy_wait | ( | ) | do {} while (!eeprom_is_ready()) |
Loops until the eeprom is no longer busy.
#define eeprom_is_ready | ( | ) |
void eeprom_read_block | ( | void * | __dst, |
const void * | __src, | ||
size_t | __n | ||
) |
Read a block of __n bytes from EEPROM address __src to SRAM __dst.
double eeprom_read_double | ( | const double * | __p | ) |
Read one double value (little endian) from EEPROM address __p.
Read one 32-bit double word (little endian) from EEPROM address __p.
float eeprom_read_float | ( | const float * | __p | ) |
Read one float value (little endian) from EEPROM address __p.
long double eeprom_read_long_double | ( | const long double * | __p | ) |
Read one long double value (little endian) from EEPROM address __p.
Read one 64-bit quad word (little endian) from EEPROM address __p.
Read one 16-bit word (little endian) from EEPROM address __p.
void eeprom_update_block | ( | const void * | __src, |
void * | __dst, | ||
size_t | __n | ||
) |
Update a block of __n bytes at EEPROM address __dst from __src.
Update a byte __value at EEPROM address __p.
void eeprom_update_double | ( | double * | __p, |
double | __value | ||
) |
Update a double __value at EEPROM address __p.
Update a 32-bit double word __value at EEPROM address __p.
void eeprom_update_float | ( | float * | __p, |
float | __value | ||
) |
Update a float __value at EEPROM address __p.
void eeprom_update_long_double | ( | long double * | __p, |
long double | __value | ||
) |
Update a long double __value at EEPROM address __p.
Update a 64-bit quad word __value at EEPROM address __p.
Update a word __value at EEPROM address __p.
void eeprom_write_block | ( | const void * | __src, |
void * | __dst, | ||
size_t | __n | ||
) |
Write a block of __n bytes to EEPROM address __dst from __src.
Write a byte __value to EEPROM address __p.
void eeprom_write_double | ( | double * | __p, |
double | __value | ||
) |
Write a double __value to EEPROM address __p.
Write a 32-bit double word __value to EEPROM address __p.
void eeprom_write_float | ( | float * | __p, |
float | __value | ||
) |
Write a float __value to EEPROM address __p.
void eeprom_write_long_double | ( | long double * | __p, |
long double | __value | ||
) |
Write a long double __value to EEPROM address __p.
Write a 64-bit quad word __value to EEPROM address __p.