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Dependencies:   mbed Buffer

Fork of DISCO-L072CZ-LRWAN1_LoRa_PingPong by ST

SDCard/SDFileSystem.h@12:046346a16ff4, 2018-05-19 (annotated)

Committer:
wardm
Date:
Sat May 19 15:42:38 2018 +0000
Revision:
12:046346a16ff4
V1.0.0

Who changed what in which revision?

UserRevisionLine numberNew contents of line
wardm 12:046346a16ff4 1 /* mbed Microcontroller Library - SDFileSystem
wardm 12:046346a16ff4 2 * Copyright (c) 2008-2009, sford
wardm 12:046346a16ff4 3 */
wardm 12:046346a16ff4 4
wardm 12:046346a16ff4 5 // VERY DRAFT CODE!!!
wardm 12:046346a16ff4 6
wardm 12:046346a16ff4 7 #ifndef SDFILESYSTEM_H
wardm 12:046346a16ff4 8 #define SDFILESYSTEM_H
wardm 12:046346a16ff4 9 #include <cstdint>
wardm 12:046346a16ff4 10 #include "mbed.h"
wardm 12:046346a16ff4 11 #include "FATFileSystem.h"
wardm 12:046346a16ff4 12
wardm 12:046346a16ff4 13 /* Class: SDFileSystem
wardm 12:046346a16ff4 14 * Access the filesystem on an SD Card using SPI
wardm 12:046346a16ff4 15 *
wardm 12:046346a16ff4 16 * Example:
wardm 12:046346a16ff4 17 * > SDFileSystem sd(p5, p6, p7, p12, "sd");
wardm 12:046346a16ff4 18 * >
wardm 12:046346a16ff4 19 * > int main() {
wardm 12:046346a16ff4 20 * > FILE *fp = fopen("/sd/myfile.txt", "w");
wardm 12:046346a16ff4 21 * > fprintf(fp, "Hello World!\n");
wardm 12:046346a16ff4 22 * > fclose(fp);
wardm 12:046346a16ff4 23 * > }
wardm 12:046346a16ff4 24 */
wardm 12:046346a16ff4 25 class SDFileSystem : public FATFileSystem {
wardm 12:046346a16ff4 26 public:
wardm 12:046346a16ff4 27
wardm 12:046346a16ff4 28 /* Constructor: SDFileSystem
wardm 12:046346a16ff4 29 * Create the File System for accessing an SD Card using SPI
wardm 12:046346a16ff4 30 *
wardm 12:046346a16ff4 31 * Variables:
wardm 12:046346a16ff4 32 * mosi - SPI mosi pin connected to SD Card
wardm 12:046346a16ff4 33 * miso - SPI miso pin conencted to SD Card
wardm 12:046346a16ff4 34 * sclk - SPI sclk pin connected to SD Card
wardm 12:046346a16ff4 35 * cs - DigitalOut pin used as SD Card chip select
wardm 12:046346a16ff4 36 * name - The name used to access the filesystem
wardm 12:046346a16ff4 37 */
wardm 12:046346a16ff4 38 SDFileSystem(PinName mosi, PinName miso, PinName sclk, PinName cs, const char* name);
wardm 12:046346a16ff4 39 virtual int disk_initialize();
wardm 12:046346a16ff4 40 virtual int disk_write(const char *buffer, int block_number);
wardm 12:046346a16ff4 41 virtual int disk_read(char *buffer, int block_number);
wardm 12:046346a16ff4 42 virtual int disk_status();
wardm 12:046346a16ff4 43 virtual int disk_sync();
wardm 12:046346a16ff4 44 virtual std::uint32_t disk_sectors();
wardm 12:046346a16ff4 45
wardm 12:046346a16ff4 46 protected:
wardm 12:046346a16ff4 47
wardm 12:046346a16ff4 48 int _cmd(int cmd, int arg);
wardm 12:046346a16ff4 49 int _cmdx(int cmd, int arg);
wardm 12:046346a16ff4 50 int _cmd8();
wardm 12:046346a16ff4 51 int _cmd58();
wardm 12:046346a16ff4 52 int initialise_card();
wardm 12:046346a16ff4 53 int initialise_card_v1();
wardm 12:046346a16ff4 54 int initialise_card_v2();
wardm 12:046346a16ff4 55
wardm 12:046346a16ff4 56
wardm 12:046346a16ff4 57 int _read(char *buffer, int length);
wardm 12:046346a16ff4 58 int _write(const char *buffer, int length);
wardm 12:046346a16ff4 59 int _sd_sectors();
wardm 12:046346a16ff4 60 int _sectors;
wardm 12:046346a16ff4 61
wardm 12:046346a16ff4 62 SPI _spi;
wardm 12:046346a16ff4 63 DigitalOut _cs;
wardm 12:046346a16ff4 64 };
wardm 12:046346a16ff4 65
wardm 12:046346a16ff4 66 #endif