lpc177x_8x_eeprom.h File Reference

#include <inttypes.h>

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Defines
#define	EEPROM_SIZE   (4096 - 64)
#define	EEPROM_CMD_8_BIT_READ   0
#define	EEPROM_CMD_16_BIT_READ   1
#define	EEPROM_CMD_32_BIT_READ   2
#define	EEPROM_CMD_8_BIT_WRITE   3
#define	EEPROM_CMD_16_BIT_WRITE   4
#define	EEPROM_CMD_32_BIT_WRITE   5
#define	EEPROM_CMD_ERASE_PRG_PAGE   6
#define	EEPROM_CMD_RDPREFETCH   _BV(3)
#define	EEPROM_PAGE_SIZE   64
#define	EEPROM_PAGE_NUM   64
#define	EEPROM_PAGE_OFFSET_MASK   0x3F
#define	EEPROM_PAGE_NUM_MASK   (0x3F << 6)
#define	EEPROM_PAGE_OFFSET(n)   ((n) & 0x3F)
#define	EEPROM_PAGE_ADRESS(n)   (((n) & 0x3F) << 6)
#define	EEPROM_WDATA_8_BIT(n)   ((n) & 0x000000FF)
#define	EEPROM_WDATA_16_BIT(n)   ((n) & 0x0000FFFF)
#define	EEPROM_WDATA_32_BIT(n)   ((n) & 0xFFFFFFFF)
#define	EEPROM_RDATA_8_BIT(n)   ((n) & 0x000000FF)
#define	EEPROM_RDATA_16_BIT(n)   ((n) & 0x0000FFFF)
#define	EEPROM_RDATA_32_BIT(n)   ((n) & 0xFFFFFFFF)
#define	EEPROM_PWRDWN   _BV(0)
#define	EEPROM_ENDOF_RW   26
#define	EEPROM_ENDOF_PROG   28
Functions
void	Lpc177x_8x_EepromInit (void)
	Initialize EEPROM.
int	Lpc177x_8x_EepromRead (uint16_t addr, void *buff, size_t size)
	Read data from EEPROM at specific address.
int	Lpc177x_8x_EepromWrite (uint16_t addr, const void *buff, size_t size)
	Write data to EEPROM at specific address.

---

Define Documentation

#define EEPROM_SIZE   (4096 - 64)

Referenced by Lpc177x_8x_EepromRead(), and Lpc177x_8x_EepromWrite().

#define EEPROM_CMD_8_BIT_READ   0

Referenced by Lpc177x_8x_EepromRead().

#define EEPROM_CMD_16_BIT_READ   1

#define EEPROM_CMD_32_BIT_READ   2

#define EEPROM_CMD_8_BIT_WRITE   3

Referenced by Lpc177x_8x_EepromWrite().

#define EEPROM_CMD_16_BIT_WRITE   4

#define EEPROM_CMD_32_BIT_WRITE   5

#define EEPROM_CMD_ERASE_PRG_PAGE   6

Referenced by Lpc177x_8x_EepromWrite().

#define EEPROM_CMD_RDPREFETCH   _BV(3)

Referenced by Lpc177x_8x_EepromRead().

#define EEPROM_PAGE_SIZE   64

Referenced by Lpc177x_8x_EepromRead(), and Lpc177x_8x_EepromWrite().

#define EEPROM_PAGE_NUM   64

Referenced by Lpc177x_8x_EepromRead(), and Lpc177x_8x_EepromWrite().

#define EEPROM_PAGE_OFFSET_MASK   0x3F

Referenced by Lpc177x_8x_EepromRead(), and Lpc177x_8x_EepromWrite().

#define EEPROM_PAGE_NUM_MASK   (0x3F << 6)

Referenced by Lpc177x_8x_EepromRead(), and Lpc177x_8x_EepromWrite().

#define EEPROM_PAGE_OFFSET

(

n

)

((n) & 0x3F)

Referenced by Lpc177x_8x_EepromRead(), and Lpc177x_8x_EepromWrite().

#define EEPROM_PAGE_ADRESS

(

n

)

(((n) & 0x3F) << 6)

Referenced by Lpc177x_8x_EepromRead(), and Lpc177x_8x_EepromWrite().

#define EEPROM_WDATA_8_BIT

(

n

)

((n) & 0x000000FF)

#define EEPROM_WDATA_16_BIT

(

n

)

((n) & 0x0000FFFF)

#define EEPROM_WDATA_32_BIT

(

n

)

((n) & 0xFFFFFFFF)

#define EEPROM_RDATA_8_BIT

(

n

)

((n) & 0x000000FF)

#define EEPROM_RDATA_16_BIT

(

n

)

((n) & 0x0000FFFF)

#define EEPROM_RDATA_32_BIT

(

n

)

((n) & 0xFFFFFFFF)

#define EEPROM_PWRDWN   _BV(0)

#define EEPROM_ENDOF_RW   26

Referenced by Lpc177x_8x_EepromRead(), and Lpc177x_8x_EepromWrite().

#define EEPROM_ENDOF_PROG   28

Referenced by Lpc177x_8x_EepromRead(), and Lpc177x_8x_EepromWrite().

---

Function Documentation

void Lpc177x_8x_EepromInit

(

void

)

Initialize EEPROM.

Initialize the eeprom memeory. Therefore enable power and setup clocks

Parameters:

none

Returns:

none

References LPC_EEPROM, NUT_HWCLK_CPU, and NutArchClockGet().

Referenced by Lpc177x_8x_EepromRead(), and Lpc177x_8x_EepromWrite().

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int Lpc177x_8x_EepromRead	(	uint16_t	addr,
		void *	buff,
		size_t	size
	)

Read data from EEPROM at specific address.

Parameters:

address	EEPROM address that start to write data, it must be in range 0..0x1000
buff	buffer to place the read data in
size	number of bytes to be read

Returns:

none

References _BV, EEPROM_CMD_8_BIT_READ, EEPROM_CMD_RDPREFETCH, EEPROM_ENDOF_PROG, EEPROM_ENDOF_RW, EEPROM_PAGE_ADRESS, EEPROM_PAGE_NUM, EEPROM_PAGE_NUM_MASK, EEPROM_PAGE_OFFSET, EEPROM_PAGE_OFFSET_MASK, EEPROM_PAGE_SIZE, EEPROM_SIZE, Lpc177x_8x_EepromInit(), and LPC_EEPROM.

Referenced by NutNvMemLoad().

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int Lpc177x_8x_EepromWrite	(	uint16_t	addr,
		const void *	buff,
		size_t	size
	)

Write data to EEPROM at specific address.

Parameters:

address	EEPROM address that start to write data, it must be in range 0..0x1000
buff	buffer that contain data that will be written to buffer
size	number of bytes to be written

Returns:

none

References _BV, EEPROM_CMD_8_BIT_WRITE, EEPROM_CMD_ERASE_PRG_PAGE, EEPROM_ENDOF_PROG, EEPROM_ENDOF_RW, EEPROM_PAGE_ADRESS, EEPROM_PAGE_NUM, EEPROM_PAGE_NUM_MASK, EEPROM_PAGE_OFFSET, EEPROM_PAGE_OFFSET_MASK, EEPROM_PAGE_SIZE, EEPROM_SIZE, Lpc177x_8x_EepromInit(), and LPC_EEPROM.

Referenced by NutNvMemSave().

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