Timóteo Mendes / Mbed 2 deprecated SD_read_write

Example for reading and writing SD card using SPI mode.

Dependencies:   mbed

Fork of Demo_NucleoF4xx_SD_Card by 不韋 呂

SDFileSystem/SDFileSystem.h@2:849ac2c01cb1, 2016-12-01 (annotated)

Committer:
Timoteo
Date:
Thu Dec 01 14:09:19 2016 +0000
Revision:
2:849ac2c01cb1
Parent:
0:08b4a59451e5 
mbed error

Who changed what in which revision?

UserRevisionLine numberNew contents of line
MikamiUitOpen 0:08b4a59451e5 1 /* mbed Microcontroller Library
MikamiUitOpen 0:08b4a59451e5 2 * Copyright (c) 2006-2012 ARM Limited
MikamiUitOpen 0:08b4a59451e5 3 *
MikamiUitOpen 0:08b4a59451e5 4 * Permission is hereby granted, free of charge, to any person obtaining a copy
MikamiUitOpen 0:08b4a59451e5 5 * of this software and associated documentation files (the "Software"), to deal
MikamiUitOpen 0:08b4a59451e5 6 * in the Software without restriction, including without limitation the rights
MikamiUitOpen 0:08b4a59451e5 7 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
MikamiUitOpen 0:08b4a59451e5 8 * copies of the Software, and to permit persons to whom the Software is
MikamiUitOpen 0:08b4a59451e5 9 * furnished to do so, subject to the following conditions:
MikamiUitOpen 0:08b4a59451e5 10 *
MikamiUitOpen 0:08b4a59451e5 11 * The above copyright notice and this permission notice shall be included in
MikamiUitOpen 0:08b4a59451e5 12 * all copies or substantial portions of the Software.
MikamiUitOpen 0:08b4a59451e5 13 *
MikamiUitOpen 0:08b4a59451e5 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
MikamiUitOpen 0:08b4a59451e5 15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
MikamiUitOpen 0:08b4a59451e5 16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
MikamiUitOpen 0:08b4a59451e5 17 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
MikamiUitOpen 0:08b4a59451e5 18 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
MikamiUitOpen 0:08b4a59451e5 19 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
MikamiUitOpen 0:08b4a59451e5 20 * SOFTWARE.
MikamiUitOpen 0:08b4a59451e5 21 */
MikamiUitOpen 0:08b4a59451e5 22 #ifndef MBED_SDFILESYSTEM_H
MikamiUitOpen 0:08b4a59451e5 23 #define MBED_SDFILESYSTEM_H
MikamiUitOpen 0:08b4a59451e5 24
MikamiUitOpen 0:08b4a59451e5 25 #include "mbed.h"
MikamiUitOpen 0:08b4a59451e5 26 #include "FATFileSystem.h"
MikamiUitOpen 0:08b4a59451e5 27 #include <stdint.h>
MikamiUitOpen 0:08b4a59451e5 28
MikamiUitOpen 0:08b4a59451e5 29 /** Access the filesystem on an SD Card using SPI
MikamiUitOpen 0:08b4a59451e5 30 *
MikamiUitOpen 0:08b4a59451e5 31 * @code
MikamiUitOpen 0:08b4a59451e5 32 * #include "mbed.h"
MikamiUitOpen 0:08b4a59451e5 33 * #include "SDFileSystem.h"
MikamiUitOpen 0:08b4a59451e5 34 *
MikamiUitOpen 0:08b4a59451e5 35 * SDFileSystem sd(p5, p6, p7, p12, "sd"); // MOSI, MISO, SCLK, SSEL
MikamiUitOpen 0:08b4a59451e5 36 *
MikamiUitOpen 0:08b4a59451e5 37 * int main() {
MikamiUitOpen 0:08b4a59451e5 38 * FILE *fp = fopen("/sd/mbed.txt", "w");
MikamiUitOpen 0:08b4a59451e5 39 * fprintf(fp, "Hello World!\n");
MikamiUitOpen 0:08b4a59451e5 40 * fclose(fp);
MikamiUitOpen 0:08b4a59451e5 41 * }
MikamiUitOpen 0:08b4a59451e5 42 * @endcode
MikamiUitOpen 0:08b4a59451e5 43 */
MikamiUitOpen 0:08b4a59451e5 44 class SDFileSystem : public FATFileSystem {
MikamiUitOpen 0:08b4a59451e5 45 public:
MikamiUitOpen 0:08b4a59451e5 46
MikamiUitOpen 0:08b4a59451e5 47 /** Create the File System for accessing an SD Card using SPI
MikamiUitOpen 0:08b4a59451e5 48 *
MikamiUitOpen 0:08b4a59451e5 49 * @param mosi SPI mosi pin connected to SD Card
MikamiUitOpen 0:08b4a59451e5 50 * @param miso SPI miso pin conencted to SD Card
MikamiUitOpen 0:08b4a59451e5 51 * @param sclk SPI sclk pin connected to SD Card
MikamiUitOpen 0:08b4a59451e5 52 * @param cs DigitalOut pin used as SD Card chip select
MikamiUitOpen 0:08b4a59451e5 53 * @param name The name used to access the virtual filesystem
MikamiUitOpen 0:08b4a59451e5 54 */
MikamiUitOpen 0:08b4a59451e5 55 SDFileSystem(PinName mosi, PinName miso, PinName sclk, PinName cs, const char* name);
MikamiUitOpen 0:08b4a59451e5 56
MikamiUitOpen 0:08b4a59451e5 57 virtual int disk_initialize();
MikamiUitOpen 0:08b4a59451e5 58 virtual int disk_status();
MikamiUitOpen 0:08b4a59451e5 59 virtual int disk_read(uint8_t * buffer, uint64_t block_number);
MikamiUitOpen 0:08b4a59451e5 60 virtual int disk_write(const uint8_t * buffer, uint64_t block_number);
MikamiUitOpen 0:08b4a59451e5 61 virtual int disk_sync();
MikamiUitOpen 0:08b4a59451e5 62 virtual uint64_t disk_sectors();
MikamiUitOpen 0:08b4a59451e5 63
MikamiUitOpen 0:08b4a59451e5 64 protected:
MikamiUitOpen 0:08b4a59451e5 65
MikamiUitOpen 0:08b4a59451e5 66 int _cmd(int cmd, int arg);
MikamiUitOpen 0:08b4a59451e5 67 int _cmdx(int cmd, int arg);
MikamiUitOpen 0:08b4a59451e5 68 int _cmd8();
MikamiUitOpen 0:08b4a59451e5 69 int _cmd58();
MikamiUitOpen 0:08b4a59451e5 70 int initialise_card();
MikamiUitOpen 0:08b4a59451e5 71 int initialise_card_v1();
MikamiUitOpen 0:08b4a59451e5 72 int initialise_card_v2();
MikamiUitOpen 0:08b4a59451e5 73
MikamiUitOpen 0:08b4a59451e5 74 int _read(uint8_t * buffer, uint32_t length);
MikamiUitOpen 0:08b4a59451e5 75 int _write(const uint8_t *buffer, uint32_t length);
MikamiUitOpen 0:08b4a59451e5 76 uint64_t _sd_sectors();
MikamiUitOpen 0:08b4a59451e5 77 uint64_t _sectors;
MikamiUitOpen 0:08b4a59451e5 78
MikamiUitOpen 0:08b4a59451e5 79 SPI _spi;
MikamiUitOpen 0:08b4a59451e5 80 DigitalOut _cs;
MikamiUitOpen 0:08b4a59451e5 81 int cdv;
MikamiUitOpen 0:08b4a59451e5 82 };
MikamiUitOpen 0:08b4a59451e5 83
MikamiUitOpen 0:08b4a59451e5 84 #endif