Code for autonomous ground vehicle, Data Bus, 3rd place winner in 2012 Sparkfun AVC.
Dependencies: Watchdog mbed Schedule SimpleFilter LSM303DLM PinDetect DebounceIn Servo
SDHCFileSystem.h
00001 /* mbed SDFileSystem Library, for providing file access to SD cards 00002 * Copyright (c) 2008-2010, sford 00003 * 00004 * Permission is hereby granted, free of charge, to any person obtaining a copy 00005 * of this software and associated documentation files (the "Software"), to deal 00006 * in the Software without restriction, including without limitation the rights 00007 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 00008 * copies of the Software, and to permit persons to whom the Software is 00009 * furnished to do so, subject to the following conditions: 00010 * 00011 * The above copyright notice and this permission notice shall be included in 00012 * all copies or substantial portions of the Software. 00013 * 00014 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 00015 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 00016 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 00017 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 00018 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 00019 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 00020 * THE SOFTWARE. 00021 */ 00022 00023 #ifndef MBED_SDHCFILESYSTEM_H 00024 #define MBED_SDHCFILESYSTEM_H 00025 00026 /** Implements FAT32 filesystem on SDHC cards, Copyright (c) 2008-2010, sford */ 00027 00028 #include "mbed.h" 00029 #include "FATFileSystem.h" 00030 00031 /* Double Words */ 00032 typedef unsigned long long uint64_t; 00033 typedef long long sint64_t; 00034 00035 /** Access the filesystem on an SD Card using SPI 00036 * 00037 * @code 00038 * #include "mbed.h" 00039 * #include "SDFileSystem.h" 00040 * 00041 * SDFileSystem sd(p5, p6, p7, p12, "sd"); // mosi, miso, sclk, cs 00042 * 00043 * int main() { 00044 * FILE *fp = fopen("/sd/myfile.txt", "w"); 00045 * fprintf(fp, "Hello World!\n"); 00046 * fclose(fp); 00047 * } 00048 */ 00049 class SDFileSystem : public FATFileSystem { 00050 public: 00051 00052 /** Create the File System for accessing an SD Card using SPI 00053 * 00054 * @param mosi SPI mosi pin connected to SD Card 00055 * @param miso SPI miso pin conencted to SD Card 00056 * @param sclk SPI sclk pin connected to SD Card 00057 * @param cs DigitalOut pin used as SD Card chip select 00058 * @param name The name used to access the virtual filesystem 00059 */ 00060 SDFileSystem(PinName mosi, PinName miso, PinName sclk, PinName cs, const char* name); 00061 virtual int disk_initialize(); 00062 virtual int disk_status(); 00063 virtual int disk_read(unsigned char *buffer, unsigned long block_number, unsigned char count); 00064 virtual int disk_write(const unsigned char *buffer, unsigned long block_number, unsigned char count); 00065 virtual int disk_sync(); 00066 virtual unsigned long disk_sector_count(); 00067 00068 protected: 00069 00070 int _cmd(int cmd, int arg); 00071 int _cmdx(int cmd, int arg); 00072 int _cmd8(); 00073 int _cmd58(); 00074 int initialise_card(); 00075 int initialise_card_v1(); 00076 int initialise_card_v2(); 00077 00078 int _read(unsigned char *buffer, int length); 00079 int _write(const unsigned char *buffer, int length); 00080 unsigned long _sd_sectors(); 00081 unsigned long _sectors; 00082 00083 SPI _spi; 00084 DigitalOut _cs; 00085 int cdv; 00086 }; 00087 00088 #endif
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