xmem.c File Reference

Device driver for the ST M25P16 40MHz 1Mbyte external memory. More...

#include <stdio.h>
#include <string.h>
#include "contiki.h"
#include "dev/spi-legacy.h"
#include "dev/xmem.h"
#include "dev/watchdog.h"

Go to the source code of this file.

Functions
void	xmem_init (void)
	Initialize the external memory.
int	xmem_pread (void *_p, int size, unsigned long offset)
	Read a number of bytes from an offset in the external memory.
int	xmem_pwrite (const void *_buf, int size, unsigned long addr)
int	xmem_erase (long size, unsigned long addr)
	Erase a sector in the flash memory.

Detailed Description

Device driver for the ST M25P16 40MHz 1Mbyte external memory.

Author

Björn Grönvall bg@si.nosp@m.cs.s.nosp@m.e Enric M. Calvo ecalv.nosp@m.o@zo.nosp@m.lerti.nosp@m.a.co.nosp@m.m

Data is written bit inverted (~-operator) to flash so that unwritten data will read as zeros (UNIX style).

Definition in file xmem.c.