Martin Sturm / Mbed 2 deprecated Lab3

Dependencies:   mbed

SDFileSystem/SDFileSystem.h@0:c546b51ecf0b, 2011-10-11 (annotated)

Committer:
XkLi
Date:
Tue Oct 11 01:24:18 2011 +0000
Revision:
0:c546b51ecf0b
v1.0

Who changed what in which revision?

UserRevisionLine numberNew contents of line
XkLi 0:c546b51ecf0b 1 /* mbed SDFileSystem Library, for providing file access to SD cards
XkLi 0:c546b51ecf0b 2 * Copyright (c) 2008-2010, sford
XkLi 0:c546b51ecf0b 3 *
XkLi 0:c546b51ecf0b 4 * Permission is hereby granted, free of charge, to any person obtaining a copy
XkLi 0:c546b51ecf0b 5 * of this software and associated documentation files (the "Software"), to deal
XkLi 0:c546b51ecf0b 6 * in the Software without restriction, including without limitation the rights
XkLi 0:c546b51ecf0b 7 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
XkLi 0:c546b51ecf0b 8 * copies of the Software, and to permit persons to whom the Software is
XkLi 0:c546b51ecf0b 9 * furnished to do so, subject to the following conditions:
XkLi 0:c546b51ecf0b 10 *
XkLi 0:c546b51ecf0b 11 * The above copyright notice and this permission notice shall be included in
XkLi 0:c546b51ecf0b 12 * all copies or substantial portions of the Software.
XkLi 0:c546b51ecf0b 13 *
XkLi 0:c546b51ecf0b 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
XkLi 0:c546b51ecf0b 15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
XkLi 0:c546b51ecf0b 16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
XkLi 0:c546b51ecf0b 17 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
XkLi 0:c546b51ecf0b 18 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
XkLi 0:c546b51ecf0b 19 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
XkLi 0:c546b51ecf0b 20 * THE SOFTWARE.
XkLi 0:c546b51ecf0b 21 */
XkLi 0:c546b51ecf0b 22
XkLi 0:c546b51ecf0b 23 #ifndef MBED_SDFILESYSTEM_H
XkLi 0:c546b51ecf0b 24 #define MBED_SDFILESYSTEM_H
XkLi 0:c546b51ecf0b 25
XkLi 0:c546b51ecf0b 26 #include "mbed.h"
XkLi 0:c546b51ecf0b 27 #include "FATFileSystem.h"
XkLi 0:c546b51ecf0b 28
XkLi 0:c546b51ecf0b 29 /** Access the filesystem on an SD Card using SPI
XkLi 0:c546b51ecf0b 30 *
XkLi 0:c546b51ecf0b 31 * @code
XkLi 0:c546b51ecf0b 32 * #include "mbed.h"
XkLi 0:c546b51ecf0b 33 * #include "SDFileSystem.h"
XkLi 0:c546b51ecf0b 34 *
XkLi 0:c546b51ecf0b 35 * SDFileSystem sd(p5, p6, p7, p12, "sd"); // mosi, miso, sclk, cs
XkLi 0:c546b51ecf0b 36 *
XkLi 0:c546b51ecf0b 37 * int main() {
XkLi 0:c546b51ecf0b 38 * FILE *fp = fopen("/sd/myfile.txt", "w");
XkLi 0:c546b51ecf0b 39 * fprintf(fp, "Hello World!\n");
XkLi 0:c546b51ecf0b 40 * fclose(fp);
XkLi 0:c546b51ecf0b 41 * }
XkLi 0:c546b51ecf0b 42 */
XkLi 0:c546b51ecf0b 43 class SDFileSystem : public FATFileSystem {
XkLi 0:c546b51ecf0b 44 public:
XkLi 0:c546b51ecf0b 45
XkLi 0:c546b51ecf0b 46 /** Create the File System for accessing an SD Card using SPI
XkLi 0:c546b51ecf0b 47 *
XkLi 0:c546b51ecf0b 48 * @param mosi SPI mosi pin connected to SD Card
XkLi 0:c546b51ecf0b 49 * @param miso SPI miso pin conencted to SD Card
XkLi 0:c546b51ecf0b 50 * @param sclk SPI sclk pin connected to SD Card
XkLi 0:c546b51ecf0b 51 * @param cs DigitalOut pin used as SD Card chip select
XkLi 0:c546b51ecf0b 52 * @param name The name used to access the virtual filesystem
XkLi 0:c546b51ecf0b 53 */
XkLi 0:c546b51ecf0b 54 SDFileSystem(PinName mosi, PinName miso, PinName sclk, PinName cs, const char* name);
XkLi 0:c546b51ecf0b 55 virtual int disk_initialize();
XkLi 0:c546b51ecf0b 56 virtual int disk_write(const char *buffer, int block_number);
XkLi 0:c546b51ecf0b 57 virtual int disk_read(char *buffer, int block_number);
XkLi 0:c546b51ecf0b 58 virtual int disk_status();
XkLi 0:c546b51ecf0b 59 virtual int disk_sync();
XkLi 0:c546b51ecf0b 60 virtual int disk_sectors();
XkLi 0:c546b51ecf0b 61
XkLi 0:c546b51ecf0b 62 protected:
XkLi 0:c546b51ecf0b 63
XkLi 0:c546b51ecf0b 64 int _cmd(int cmd, int arg);
XkLi 0:c546b51ecf0b 65 int _cmdx(int cmd, int arg);
XkLi 0:c546b51ecf0b 66 int _cmd8();
XkLi 0:c546b51ecf0b 67 int _cmd58();
XkLi 0:c546b51ecf0b 68 int initialise_card();
XkLi 0:c546b51ecf0b 69 int initialise_card_v1();
XkLi 0:c546b51ecf0b 70 int initialise_card_v2();
XkLi 0:c546b51ecf0b 71
XkLi 0:c546b51ecf0b 72 int _read(char *buffer, int length);
XkLi 0:c546b51ecf0b 73 int _write(const char *buffer, int length);
XkLi 0:c546b51ecf0b 74 int _sd_sectors();
XkLi 0:c546b51ecf0b 75 int _sectors;
XkLi 0:c546b51ecf0b 76
XkLi 0:c546b51ecf0b 77 SPI _spi;
XkLi 0:c546b51ecf0b 78 DigitalOut _cs;
XkLi 0:c546b51ecf0b 79 };
XkLi 0:c546b51ecf0b 80
XkLi 0:c546b51ecf0b 81 #endif