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SDFileSystem.h
- Committer:
- halfpitch
- Date:
- 2011-09-03
- Revision:
- 0:011aabf9f436
File content as of revision 0:011aabf9f436:
/* mbed Microcontroller Library - SDFileSystem
* Copyright (c) 2008-2009, sford
*/
// VERY DRAFT CODE!!!
#ifndef SDFILESYSTEM_H
#define SDFILESYSTEM_H
#include "mbed.h"
#include "FATFileSystem.h"
/* Class: SDFileSystem
* Access the filesystem on an SD Card using SPI
*
* Example:
* > SDFileSystem sd(p5, p6, p7, p12, "sd");
* >
* > int main() {
* > FILE *fp = fopen("/sd/myfile.txt", "w");
* > fprintf(fp, "Hello World!\n");
* > fclose(fp);
* > }
*/
class SDFileSystem : public FATFileSystem {
public:
/* Constructor: SDFileSystem
* Create the File System for accessing an SD Card using SPI
*
* Variables:
* mosi - SPI mosi pin connected to SD Card
* miso - SPI miso pin conencted to SD Card
* sclk - SPI sclk pin connected to SD Card
* cs - DigitalOut pin used as SD Card chip select
* name - The name used to access the filesystem
*/
SDFileSystem(PinName mosi, PinName miso, PinName sclk, PinName cs, const char* name);
virtual int disk_initialize();
virtual int disk_write(const char *buffer, int block_number);
virtual int disk_read(char *buffer, int block_number);
virtual int disk_status();
virtual int disk_sync();
virtual int disk_sectors();
protected:
int _cmd(int cmd, int arg);
int _cmdx(int cmd, int arg);
int _cmd8();
int _cmd58();
int initialise_card();
int initialise_card_v1();
int initialise_card_v2();
int _read(char *buffer, int length);
int _write(const char *buffer, int length);
int _sd_sectors();
int _sectors;
SPI _spi;
DigitalOut _cs;
};
#endif