USBMSD example using an SD card
Dependents: USBMSD_SD_HelloWorld_FRDM-KL25Z USBMSD_SD_HelloWorld_Mbed USBMSD_SD_HelloWorld_FRDM-KL25Z V09_01h ... more
Diff: USBMSD_SD.h
- Revision:
- 0:de50a209c5a9
- Child:
- 1:923991b026e7
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/USBMSD_SD.h Sun Dec 11 15:17:54 2011 +0000 @@ -0,0 +1,84 @@ +/* mbed USBMSD_SD Library, for providing file access to SD cards + * Copyright (c) 2008-2010, sford + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + */ + +#ifndef USBMSD_SD_H +#define USBMSD_SD_H + +#include "mbed.h" +#include "USBMSD.h" + +/** Use the SDcard as mass storage device using the USBMSD class + * + * @code + * #include "mbed.h" + * #include "USBMSD_SD.h" + * + * USBMSD_SD sd(p5, p6, p7, p8); + * + * int main() { + * while(1); + * } + * + * @endcode + */ +class USBMSD_SD : public USBMSD { +public: + + /** Create the File System for accessing an SD Card using SPI + * + * @param mosi SPI mosi pin connected to SD Card + * @param miso SPI miso pin conencted to SD Card + * @param sclk SPI sclk pin connected to SD Card + * @param cs DigitalOut pin used as SD Card chip select + * @param name The name used to access the virtual filesystem + */ + USBMSD_SD(PinName mosi, PinName miso, PinName sclk, PinName cs); + virtual int disk_initialize(); + virtual int disk_write(const char *buffer, int block_number); + virtual int disk_read(char *buffer, int block_number); + virtual int disk_status(); + virtual int disk_sync(); + virtual int disk_sectors(); + virtual int disk_size(); + +protected: + + int _cmd(int cmd, int arg); + int _cmdx(int cmd, int arg); + int _cmd8(); + int _cmd58(); + int initialise_card(); + int initialise_card_v1(); + int initialise_card_v2(); + + int _read(char *buffer, int length); + int _write(const char *buffer, int length); + int _sd_sectors(); + int _sectors; + + int capacity; + + SPI _spi; + DigitalOut _cs; +}; + +#endif