akinori oda / Mbed 2 deprecated SDHCFileSystem4

SDHC support till 32GB

Dependencies:   mbed FatFileSystem

SDHCFileSystem.h@1:bdc284d67f77, 2021-07-14 (annotated)

Committer:
odaki62
Date:
Wed Jul 14 21:54:47 2021 +0000
Revision:
1:bdc284d67f77
Parent:
0:90601632692f 
test

Who changed what in which revision?

UserRevisionLine numberNew contents of line
xxll 0:90601632692f 1 /* mbed SDFileSystem Library, for providing file access to SD cards
xxll 0:90601632692f 2 * Copyright (c) 2008-2010, sford
xxll 0:90601632692f 3 *
xxll 0:90601632692f 4 * Permission is hereby granted, free of charge, to any person obtaining a copy
xxll 0:90601632692f 5 * of this software and associated documentation files (the "Software"), to deal
xxll 0:90601632692f 6 * in the Software without restriction, including without limitation the rights
xxll 0:90601632692f 7 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
xxll 0:90601632692f 8 * copies of the Software, and to permit persons to whom the Software is
xxll 0:90601632692f 9 * furnished to do so, subject to the following conditions:
xxll 0:90601632692f 10 *
xxll 0:90601632692f 11 * The above copyright notice and this permission notice shall be included in
xxll 0:90601632692f 12 * all copies or substantial portions of the Software.
xxll 0:90601632692f 13 *
xxll 0:90601632692f 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
xxll 0:90601632692f 15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
xxll 0:90601632692f 16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
xxll 0:90601632692f 17 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
xxll 0:90601632692f 18 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
xxll 0:90601632692f 19 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
xxll 0:90601632692f 20 * THE SOFTWARE.
xxll 0:90601632692f 21 */
xxll 0:90601632692f 22
xxll 0:90601632692f 23 #ifndef MBED_SDHCFILESYSTEM_H
xxll 0:90601632692f 24 #define MBED_SDHCFILESYSTEM_H
xxll 0:90601632692f 25
xxll 0:90601632692f 26 #include "mbed.h"
xxll 0:90601632692f 27 #include "FATFileSystem.h"
xxll 0:90601632692f 28
xxll 0:90601632692f 29 /* Double Words */
xxll 0:90601632692f 30 typedef unsigned long long uint64_t;
xxll 0:90601632692f 31 typedef long long sint64_t;
xxll 0:90601632692f 32
xxll 0:90601632692f 33 /** Access the filesystem on an SD Card using SPI
xxll 0:90601632692f 34 *
xxll 0:90601632692f 35 * @code
xxll 0:90601632692f 36 * #include "mbed.h"
xxll 0:90601632692f 37 * #include "SDFileSystem.h"
xxll 0:90601632692f 38 *
xxll 0:90601632692f 39 * SDFileSystem sd(p5, p6, p7, p12, "sd"); // mosi, miso, sclk, cs
xxll 0:90601632692f 40 *
xxll 0:90601632692f 41 * int main() {
xxll 0:90601632692f 42 * FILE *fp = fopen("/sd/myfile.txt", "w");
xxll 0:90601632692f 43 * fprintf(fp, "Hello World!\n");
xxll 0:90601632692f 44 * fclose(fp);
xxll 0:90601632692f 45 * }
xxll 0:90601632692f 46 */
xxll 0:90601632692f 47 class SDFileSystem : public FATFileSystem {
xxll 0:90601632692f 48 public:
xxll 0:90601632692f 49
xxll 0:90601632692f 50 /** Create the File System for accessing an SD Card using SPI
xxll 0:90601632692f 51 *
xxll 0:90601632692f 52 * @param mosi SPI mosi pin connected to SD Card
xxll 0:90601632692f 53 * @param miso SPI miso pin conencted to SD Card
xxll 0:90601632692f 54 * @param sclk SPI sclk pin connected to SD Card
xxll 0:90601632692f 55 * @param cs DigitalOut pin used as SD Card chip select
xxll 0:90601632692f 56 * @param name The name used to access the virtual filesystem
xxll 0:90601632692f 57 */
xxll 0:90601632692f 58 SDFileSystem(PinName mosi, PinName miso, PinName sclk, PinName cs, const char* name);
xxll 0:90601632692f 59 virtual int disk_initialize();
xxll 0:90601632692f 60 virtual int disk_write(const char *buffer, int block_number);
xxll 0:90601632692f 61 virtual int disk_read(char *buffer, int block_number);
xxll 0:90601632692f 62 virtual int disk_status();
xxll 0:90601632692f 63 virtual int disk_sync();
xxll 0:90601632692f 64 virtual int disk_sectors();
xxll 0:90601632692f 65
xxll 0:90601632692f 66 protected:
xxll 0:90601632692f 67
xxll 0:90601632692f 68 int _cmd(int cmd, int arg);
xxll 0:90601632692f 69 int _cmdx(int cmd, int arg);
xxll 0:90601632692f 70 int _cmd8();
xxll 0:90601632692f 71 int _cmd58();
xxll 0:90601632692f 72 int initialise_card();
xxll 0:90601632692f 73 int initialise_card_v1();
xxll 0:90601632692f 74 int initialise_card_v2();
xxll 0:90601632692f 75
xxll 0:90601632692f 76 int _read(char *buffer, int length);
xxll 0:90601632692f 77 int _write(const char *buffer, int length);
xxll 0:90601632692f 78 int _sd_sectors();
xxll 0:90601632692f 79 int _sectors;
xxll 0:90601632692f 80
xxll 0:90601632692f 81 SPI _spi;
xxll 0:90601632692f 82 DigitalOut _cs;
xxll 0:90601632692f 83 int cdv;
xxll 0:90601632692f 84 };
xxll 0:90601632692f 85
xxll 0:90601632692f 86 #endif