nand.h File Reference

NAND. More...

#include <stdint.h>

Macros
#define	NAND_BLOCK_SIZE   512
	Number of bytes in a NAND block.

Functions
void	nandErase (uint32_t startAdddr, int numberOfBlocks)
	Erase blocks on NAND. More...
void	nandRead (uint32_t startAddr, int numberOfBlocks, void *dest)
	Read blocks from NAND. More...
void	nandWrite (uint32_t startAddr, int numberOfBlocks, void *src)
	Write blocks to NAND. More...

Function Documentation

nandErase()

void nandErase	(	uint32_t	startAdddr,
		int	numberOfBlocks
	)

Erase (set to 0xFF) 512B blocks on NAND. You must do this before writing due to the nature of NAND storage where a write operating can only unset bits.

Warning

You can brick a GP2X if you erase the first 512K of NAND, where the bootloader is stored.

Parameters

startAddr	Address to start erasing from (absolute, not in terms of blocks)
numberOfBlocks	Number of 512B blocks to erase

See also

nandWrite

nandRead()

void nandRead	(	uint32_t	startAddr,
		int	numberOfBlocks,
		void *	dest
	)

Read 512B blocks from NAND.

Parameters

startAddr	Address to start reading from (absolute, not in terms of blocks)
numberOfBlocks	Number of 512B blocks to read
dest	Pointer to memory location to store data

nandWrite()

void nandWrite	(	uint32_t	startAddr,
		int	numberOfBlocks,
		void *	src
	)

Write 512B blocks to NAND. You must first erase the blocks.

Warning

You can brick a GP2X if you write to the first 512K of NAND, where the bootloader is stored.

Parameters

startAddr	Address to start start writing to (absolute, not in terms of blocks)
numberOfBlocks	Number of 512B blocks to write
src	Pointer to memory location holding data to write

See also

nandWrite