USBMSD SD card Hello World for Mbed platforms
Dependencies: mbed USBMSD_SD USBDevice
USBDevice/USBMSD/USB_SDcard.h
- Committer:
- samux
- Date:
- 2011-11-12
- Revision:
- 4:980e6470dcce
- Child:
- 6:126c4d980196
File content as of revision 4:980e6470dcce:
/* mbed USB_SDcard Library, for accessing 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 USB_SDCARD_H #define USB_SDCARD_H #include "mbed.h" #include "USBMSD.h" class USB_SDcard : 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 */ USB_SDcard(PinName mosi = p5, PinName miso = p6, PinName sclk = p7, PinName cs = p8); /* * read a block on a storage chip * * @param data pointer where will be stored read data * @param block block number * @returns 0 if successful */ virtual int blockRead(uint8_t * data, uint16_t block); /* * write a block on a storage chip * * @param data data to write * @param block block number * @returns 0 if successful */ virtual int blockWrite(uint8_t * data, uint16_t block); protected: int init(); int disk_status(); int disk_sync(); int disk_sectors(); 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; SPI _spi; DigitalOut _cs; }; #endif