Hepta 2 / SDHCFileSystem

SD_hepta

Dependencies:   FatFileSystem

Dependents:   HEPTA2_assembly_0720 HEPTA2_ALL HEPTA2_ALL_ver0803_02 HEPTA

SDHCFileSystem.h@0:ee6c3a0bbbbb, 2017-07-24 (annotated)

Committer:
hepta2ume
Date:
Mon Jul 24 05:52:49 2017 +0000
Revision:
0:ee6c3a0bbbbb
Hepta SD

Who changed what in which revision?

UserRevisionLine numberNew contents of line
hepta2ume 0:ee6c3a0bbbbb 1 /* mbed SDFileSystem Library, for providing file access to SD cards
hepta2ume 0:ee6c3a0bbbbb 2 * Copyright (c) 2008-2010, sford
hepta2ume 0:ee6c3a0bbbbb 3 *
hepta2ume 0:ee6c3a0bbbbb 4 * Permission is hereby granted, free of charge, to any person obtaining a copy
hepta2ume 0:ee6c3a0bbbbb 5 * of this software and associated documentation files (the "Software"), to deal
hepta2ume 0:ee6c3a0bbbbb 6 * in the Software without restriction, including without limitation the rights
hepta2ume 0:ee6c3a0bbbbb 7 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
hepta2ume 0:ee6c3a0bbbbb 8 * copies of the Software, and to permit persons to whom the Software is
hepta2ume 0:ee6c3a0bbbbb 9 * furnished to do so, subject to the following conditions:
hepta2ume 0:ee6c3a0bbbbb 10 *
hepta2ume 0:ee6c3a0bbbbb 11 * The above copyright notice and this permission notice shall be included in
hepta2ume 0:ee6c3a0bbbbb 12 * all copies or substantial portions of the Software.
hepta2ume 0:ee6c3a0bbbbb 13 *
hepta2ume 0:ee6c3a0bbbbb 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
hepta2ume 0:ee6c3a0bbbbb 15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
hepta2ume 0:ee6c3a0bbbbb 16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
hepta2ume 0:ee6c3a0bbbbb 17 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
hepta2ume 0:ee6c3a0bbbbb 18 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
hepta2ume 0:ee6c3a0bbbbb 19 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
hepta2ume 0:ee6c3a0bbbbb 20 * THE SOFTWARE.
hepta2ume 0:ee6c3a0bbbbb 21 */
hepta2ume 0:ee6c3a0bbbbb 22
hepta2ume 0:ee6c3a0bbbbb 23 #ifndef MBED_SDHCFILESYSTEM_H
hepta2ume 0:ee6c3a0bbbbb 24 #define MBED_SDHCFILESYSTEM_H
hepta2ume 0:ee6c3a0bbbbb 25
hepta2ume 0:ee6c3a0bbbbb 26 #include "mbed.h"
hepta2ume 0:ee6c3a0bbbbb 27 #include "FATFileSystem.h"
hepta2ume 0:ee6c3a0bbbbb 28
hepta2ume 0:ee6c3a0bbbbb 29 /* Double Words */
hepta2ume 0:ee6c3a0bbbbb 30 typedef unsigned long long uint64_t;
hepta2ume 0:ee6c3a0bbbbb 31 typedef long long sint64_t;
hepta2ume 0:ee6c3a0bbbbb 32
hepta2ume 0:ee6c3a0bbbbb 33 /** Access the filesystem on an SD Card using SPI
hepta2ume 0:ee6c3a0bbbbb 34 *
hepta2ume 0:ee6c3a0bbbbb 35 * @code
hepta2ume 0:ee6c3a0bbbbb 36 * #include "mbed.h"
hepta2ume 0:ee6c3a0bbbbb 37 * #include "SDFileSystem.h"
hepta2ume 0:ee6c3a0bbbbb 38 *
hepta2ume 0:ee6c3a0bbbbb 39 * SDFileSystem sd(p5, p6, p7, p12, "sd"); // mosi, miso, sclk, cs
hepta2ume 0:ee6c3a0bbbbb 40 *
hepta2ume 0:ee6c3a0bbbbb 41 * int main() {
hepta2ume 0:ee6c3a0bbbbb 42 * FILE *fp = fopen("/sd/myfile.txt", "w");
hepta2ume 0:ee6c3a0bbbbb 43 * fprintf(fp, "Hello World!\n");
hepta2ume 0:ee6c3a0bbbbb 44 * fclose(fp);
hepta2ume 0:ee6c3a0bbbbb 45 * }
hepta2ume 0:ee6c3a0bbbbb 46 */
hepta2ume 0:ee6c3a0bbbbb 47 class SDFileSystem : public FATFileSystem {
hepta2ume 0:ee6c3a0bbbbb 48 public:
hepta2ume 0:ee6c3a0bbbbb 49
hepta2ume 0:ee6c3a0bbbbb 50 /** Create the File System for accessing an SD Card using SPI
hepta2ume 0:ee6c3a0bbbbb 51 *
hepta2ume 0:ee6c3a0bbbbb 52 * @param mosi SPI mosi pin connected to SD Card
hepta2ume 0:ee6c3a0bbbbb 53 * @param miso SPI miso pin conencted to SD Card
hepta2ume 0:ee6c3a0bbbbb 54 * @param sclk SPI sclk pin connected to SD Card
hepta2ume 0:ee6c3a0bbbbb 55 * @param cs DigitalOut pin used as SD Card chip select
hepta2ume 0:ee6c3a0bbbbb 56 * @param name The name used to access the virtual filesystem
hepta2ume 0:ee6c3a0bbbbb 57 */
hepta2ume 0:ee6c3a0bbbbb 58 SDFileSystem(PinName mosi, PinName miso, PinName sclk, PinName cs, const char* name);
hepta2ume 0:ee6c3a0bbbbb 59 virtual int disk_initialize();
hepta2ume 0:ee6c3a0bbbbb 60 virtual int disk_write(const char *buffer, int block_number);
hepta2ume 0:ee6c3a0bbbbb 61 virtual int disk_read(char *buffer, int block_number);
hepta2ume 0:ee6c3a0bbbbb 62 virtual int disk_status();
hepta2ume 0:ee6c3a0bbbbb 63 virtual int disk_sync();
hepta2ume 0:ee6c3a0bbbbb 64 virtual int disk_sectors();
hepta2ume 0:ee6c3a0bbbbb 65
hepta2ume 0:ee6c3a0bbbbb 66 protected:
hepta2ume 0:ee6c3a0bbbbb 67
hepta2ume 0:ee6c3a0bbbbb 68 int _cmd(int cmd, int arg);
hepta2ume 0:ee6c3a0bbbbb 69 int _cmdx(int cmd, int arg);
hepta2ume 0:ee6c3a0bbbbb 70 int _cmd8();
hepta2ume 0:ee6c3a0bbbbb 71 int _cmd58();
hepta2ume 0:ee6c3a0bbbbb 72 int initialise_card();
hepta2ume 0:ee6c3a0bbbbb 73 int initialise_card_v1();
hepta2ume 0:ee6c3a0bbbbb 74 int initialise_card_v2();
hepta2ume 0:ee6c3a0bbbbb 75
hepta2ume 0:ee6c3a0bbbbb 76 int _read(char *buffer, int length);
hepta2ume 0:ee6c3a0bbbbb 77 int _write(const char *buffer, int length);
hepta2ume 0:ee6c3a0bbbbb 78 int _sd_sectors();
hepta2ume 0:ee6c3a0bbbbb 79 int _sectors;
hepta2ume 0:ee6c3a0bbbbb 80
hepta2ume 0:ee6c3a0bbbbb 81 SPI _spi;
hepta2ume 0:ee6c3a0bbbbb 82 DigitalOut _cs;
hepta2ume 0:ee6c3a0bbbbb 83 int cdv;
hepta2ume 0:ee6c3a0bbbbb 84 };
hepta2ume 0:ee6c3a0bbbbb 85
hepta2ume 0:ee6c3a0bbbbb 86 #endif