karelv / USBSDFileSystem

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Dependents:   SD_USB_FS_HelloWorld

USBSDFileSystem.h@0:c3d2e89ca30d, 2013-08-26 (annotated)

Committer:
karelv
Date:
Mon Aug 26 19:42:12 2013 +0000
Revision:
0:c3d2e89ca30d
just hello world program for USBMSD together with FATFileSystem using USBFileSystem for SD-card

Who changed what in which revision?

UserRevisionLine numberNew contents of line
karelv 0:c3d2e89ca30d 1 #ifndef MBED_SDFILESYSTEM_H
karelv 0:c3d2e89ca30d 2 #define MBED_SDFILESYSTEM_H
karelv 0:c3d2e89ca30d 3
karelv 0:c3d2e89ca30d 4 #include "mbed.h"
karelv 0:c3d2e89ca30d 5 #include "USBFileSystem.h"
karelv 0:c3d2e89ca30d 6 #include <stdint.h>
karelv 0:c3d2e89ca30d 7
karelv 0:c3d2e89ca30d 8 /** Access the filesystem on an SD Card using SPI
karelv 0:c3d2e89ca30d 9 *
karelv 0:c3d2e89ca30d 10 * @code
karelv 0:c3d2e89ca30d 11 * #include "mbed.h"
karelv 0:c3d2e89ca30d 12 * #include "SDFileSystem.h"
karelv 0:c3d2e89ca30d 13 *
karelv 0:c3d2e89ca30d 14 * USBSDFileSystem sd("sd", p5, p6, p7, p12); // mosi, miso, sclk, cs
karelv 0:c3d2e89ca30d 15 *
karelv 0:c3d2e89ca30d 16 * int main() {
karelv 0:c3d2e89ca30d 17 * FILE *fp = fopen("/sd/myfile.txt", "w");
karelv 0:c3d2e89ca30d 18 * fprintf(fp, "Hello World!\n");
karelv 0:c3d2e89ca30d 19 * fclose(fp);
karelv 0:c3d2e89ca30d 20 * }
karelv 0:c3d2e89ca30d 21 */
karelv 0:c3d2e89ca30d 22 class USBSDFileSystem : public USBFileSystem {
karelv 0:c3d2e89ca30d 23 public:
karelv 0:c3d2e89ca30d 24
karelv 0:c3d2e89ca30d 25 /** Create the File System for accessing an SD Card using SPI
karelv 0:c3d2e89ca30d 26 *
karelv 0:c3d2e89ca30d 27 * @param mosi SPI mosi pin connected to SD Card
karelv 0:c3d2e89ca30d 28 * @param miso SPI miso pin conencted to SD Card
karelv 0:c3d2e89ca30d 29 * @param sclk SPI sclk pin connected to SD Card
karelv 0:c3d2e89ca30d 30 * @param cs DigitalOut pin used as SD Card chip select
karelv 0:c3d2e89ca30d 31 * @param name The name used to access the virtual filesystem
karelv 0:c3d2e89ca30d 32 */
karelv 0:c3d2e89ca30d 33 USBSDFileSystem(const char *name, PinName mosi, PinName miso, PinName sclk, PinName cs);
karelv 0:c3d2e89ca30d 34 virtual int disk_initialize();
karelv 0:c3d2e89ca30d 35 virtual int _disk_status();
karelv 0:c3d2e89ca30d 36 virtual int disk_read(uint8_t * buffer, uint64_t block_number);
karelv 0:c3d2e89ca30d 37 virtual int _disk_write(const uint8_t * buffer, uint64_t block_number);
karelv 0:c3d2e89ca30d 38 virtual int disk_sync();
karelv 0:c3d2e89ca30d 39 virtual uint64_t disk_sectors();
karelv 0:c3d2e89ca30d 40
karelv 0:c3d2e89ca30d 41 protected:
karelv 0:c3d2e89ca30d 42
karelv 0:c3d2e89ca30d 43 int _cmd(int cmd, int arg);
karelv 0:c3d2e89ca30d 44 int _cmdx(int cmd, int arg);
karelv 0:c3d2e89ca30d 45 int _cmd8();
karelv 0:c3d2e89ca30d 46 int _cmd58();
karelv 0:c3d2e89ca30d 47 int initialise_card();
karelv 0:c3d2e89ca30d 48 int initialise_card_v1();
karelv 0:c3d2e89ca30d 49 int initialise_card_v2();
karelv 0:c3d2e89ca30d 50
karelv 0:c3d2e89ca30d 51 int _read(uint8_t * buffer, uint32_t length);
karelv 0:c3d2e89ca30d 52 int _write(const uint8_t *buffer, uint32_t length);
karelv 0:c3d2e89ca30d 53 uint64_t _sd_sectors();
karelv 0:c3d2e89ca30d 54 uint64_t _sectors;
karelv 0:c3d2e89ca30d 55
karelv 0:c3d2e89ca30d 56 uint8_t _status;
karelv 0:c3d2e89ca30d 57
karelv 0:c3d2e89ca30d 58 SPI _spi;
karelv 0:c3d2e89ca30d 59 DigitalOut _cs;
karelv 0:c3d2e89ca30d 60 int cdv;
karelv 0:c3d2e89ca30d 61 };
karelv 0:c3d2e89ca30d 62
karelv 0:c3d2e89ca30d 63 #endif