天宏 小原 / Mbed 2 deprecated main_SPC

private

Dependencies:   ADXL345 FATFileSystem LPS331_SPI mbed

SDFileSystem.h@0:e9f20ea63046, 2016-09-22 (annotated)

Committer:
obaratakahiro
Date:
Thu Sep 22 03:08:19 2016 +0000
Revision:
0:e9f20ea63046
SD????????????

Who changed what in which revision?

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obaratakahiro 0:e9f20ea63046 1 /* mbed Microcontroller Library
obaratakahiro 0:e9f20ea63046 2 * Copyright (c) 2006-2012 ARM Limited
obaratakahiro 0:e9f20ea63046 3 *
obaratakahiro 0:e9f20ea63046 4 * Permission is hereby granted, free of charge, to any person obtaining a copy
obaratakahiro 0:e9f20ea63046 5 * of this software and associated documentation files (the "Software"), to deal
obaratakahiro 0:e9f20ea63046 6 * in the Software without restriction, including without limitation the rights
obaratakahiro 0:e9f20ea63046 7 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
obaratakahiro 0:e9f20ea63046 8 * copies of the Software, and to permit persons to whom the Software is
obaratakahiro 0:e9f20ea63046 9 * furnished to do so, subject to the following conditions:
obaratakahiro 0:e9f20ea63046 10 *
obaratakahiro 0:e9f20ea63046 11 * The above copyright notice and this permission notice shall be included in
obaratakahiro 0:e9f20ea63046 12 * all copies or substantial portions of the Software.
obaratakahiro 0:e9f20ea63046 13 *
obaratakahiro 0:e9f20ea63046 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
obaratakahiro 0:e9f20ea63046 15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
obaratakahiro 0:e9f20ea63046 16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
obaratakahiro 0:e9f20ea63046 17 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
obaratakahiro 0:e9f20ea63046 18 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
obaratakahiro 0:e9f20ea63046 19 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
obaratakahiro 0:e9f20ea63046 20 * SOFTWARE.
obaratakahiro 0:e9f20ea63046 21 */
obaratakahiro 0:e9f20ea63046 22 #ifndef MBED_SDFILESYSTEM_H
obaratakahiro 0:e9f20ea63046 23 #define MBED_SDFILESYSTEM_H
obaratakahiro 0:e9f20ea63046 24
obaratakahiro 0:e9f20ea63046 25 #include "mbed.h"
obaratakahiro 0:e9f20ea63046 26 #include "FATFileSystem.h"
obaratakahiro 0:e9f20ea63046 27 #include <stdint.h>
obaratakahiro 0:e9f20ea63046 28
obaratakahiro 0:e9f20ea63046 29 /** Access the filesystem on an SD Card using SPI
obaratakahiro 0:e9f20ea63046 30 *
obaratakahiro 0:e9f20ea63046 31 * @code
obaratakahiro 0:e9f20ea63046 32 * #include "mbed.h"
obaratakahiro 0:e9f20ea63046 33 * #include "SDFileSystem.h"
obaratakahiro 0:e9f20ea63046 34 *
obaratakahiro 0:e9f20ea63046 35 * SDFileSystem sd(p5, p6, p7, p12, "sd"); // mosi, miso, sclk, cs
obaratakahiro 0:e9f20ea63046 36 *
obaratakahiro 0:e9f20ea63046 37 * int main() {
obaratakahiro 0:e9f20ea63046 38 * FILE *fp = fopen("/sd/myfile.txt", "w");
obaratakahiro 0:e9f20ea63046 39 * fprintf(fp, "Hello World!\n");
obaratakahiro 0:e9f20ea63046 40 * fclose(fp);
obaratakahiro 0:e9f20ea63046 41 * }
obaratakahiro 0:e9f20ea63046 42 */
obaratakahiro 0:e9f20ea63046 43 class SDFileSystem : public FATFileSystem {
obaratakahiro 0:e9f20ea63046 44 public:
obaratakahiro 0:e9f20ea63046 45
obaratakahiro 0:e9f20ea63046 46 /** Create the File System for accessing an SD Card using SPI
obaratakahiro 0:e9f20ea63046 47 *
obaratakahiro 0:e9f20ea63046 48 * @param mosi SPI mosi pin connected to SD Card
obaratakahiro 0:e9f20ea63046 49 * @param miso SPI miso pin conencted to SD Card
obaratakahiro 0:e9f20ea63046 50 * @param sclk SPI sclk pin connected to SD Card
obaratakahiro 0:e9f20ea63046 51 * @param cs DigitalOut pin used as SD Card chip select
obaratakahiro 0:e9f20ea63046 52 * @param name The name used to access the virtual filesystem
obaratakahiro 0:e9f20ea63046 53 */
obaratakahiro 0:e9f20ea63046 54 SDFileSystem(PinName mosi, PinName miso, PinName sclk, PinName cs, const char* name);
obaratakahiro 0:e9f20ea63046 55 virtual int disk_initialize();
obaratakahiro 0:e9f20ea63046 56 virtual int disk_status();
obaratakahiro 0:e9f20ea63046 57 virtual int disk_read(uint8_t* buffer, uint32_t block_number, uint32_t count);
obaratakahiro 0:e9f20ea63046 58 virtual int disk_write(const uint8_t* buffer, uint32_t block_number, uint32_t count);
obaratakahiro 0:e9f20ea63046 59 virtual int disk_sync();
obaratakahiro 0:e9f20ea63046 60 virtual uint32_t disk_sectors();
obaratakahiro 0:e9f20ea63046 61
obaratakahiro 0:e9f20ea63046 62 protected:
obaratakahiro 0:e9f20ea63046 63
obaratakahiro 0:e9f20ea63046 64 int _cmd(int cmd, int arg);
obaratakahiro 0:e9f20ea63046 65 int _cmdx(int cmd, int arg);
obaratakahiro 0:e9f20ea63046 66 int _cmd8();
obaratakahiro 0:e9f20ea63046 67 int _cmd58();
obaratakahiro 0:e9f20ea63046 68 int initialise_card();
obaratakahiro 0:e9f20ea63046 69 int initialise_card_v1();
obaratakahiro 0:e9f20ea63046 70 int initialise_card_v2();
obaratakahiro 0:e9f20ea63046 71
obaratakahiro 0:e9f20ea63046 72 int _read(uint8_t * buffer, uint32_t length);
obaratakahiro 0:e9f20ea63046 73 int _write(const uint8_t *buffer, uint32_t length);
obaratakahiro 0:e9f20ea63046 74 uint32_t _sd_sectors();
obaratakahiro 0:e9f20ea63046 75 uint32_t _sectors;
obaratakahiro 0:e9f20ea63046 76
obaratakahiro 0:e9f20ea63046 77 void set_init_sck(uint32_t sck) { _init_sck = sck; }
obaratakahiro 0:e9f20ea63046 78 // Note: The highest SPI clock rate is 20 MHz for MMC and 25 MHz for SD
obaratakahiro 0:e9f20ea63046 79 void set_transfer_sck(uint32_t sck) { _transfer_sck = sck; }
obaratakahiro 0:e9f20ea63046 80 uint32_t _init_sck;
obaratakahiro 0:e9f20ea63046 81 uint32_t _transfer_sck;
obaratakahiro 0:e9f20ea63046 82
obaratakahiro 0:e9f20ea63046 83 SPI _spi;
obaratakahiro 0:e9f20ea63046 84 DigitalOut _cs;
obaratakahiro 0:e9f20ea63046 85 int cdv;
obaratakahiro 0:e9f20ea63046 86 int _is_initialized;
obaratakahiro 0:e9f20ea63046 87 };
obaratakahiro 0:e9f20ea63046 88
obaratakahiro 0:e9f20ea63046 89 #endif