Code for autonomous ground vehicle, Data Bus, 3rd place winner in 2012 Sparkfun AVC.
Dependencies: Watchdog mbed Schedule SimpleFilter LSM303DLM PinDetect DebounceIn Servo
SDFileSystem/SDHCFileSystem.h@0:826c6171fc1b, 2012-06-20 (annotated)
- Committer:
- shimniok
- Date:
- Wed Jun 20 14:57:48 2012 +0000
- Revision:
- 0:826c6171fc1b
Updated documentation
Who changed what in which revision?
User | Revision | Line number | New contents of line |
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shimniok | 0:826c6171fc1b | 1 | /* mbed SDFileSystem Library, for providing file access to SD cards |
shimniok | 0:826c6171fc1b | 2 | * Copyright (c) 2008-2010, sford |
shimniok | 0:826c6171fc1b | 3 | * |
shimniok | 0:826c6171fc1b | 4 | * Permission is hereby granted, free of charge, to any person obtaining a copy |
shimniok | 0:826c6171fc1b | 5 | * of this software and associated documentation files (the "Software"), to deal |
shimniok | 0:826c6171fc1b | 6 | * in the Software without restriction, including without limitation the rights |
shimniok | 0:826c6171fc1b | 7 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
shimniok | 0:826c6171fc1b | 8 | * copies of the Software, and to permit persons to whom the Software is |
shimniok | 0:826c6171fc1b | 9 | * furnished to do so, subject to the following conditions: |
shimniok | 0:826c6171fc1b | 10 | * |
shimniok | 0:826c6171fc1b | 11 | * The above copyright notice and this permission notice shall be included in |
shimniok | 0:826c6171fc1b | 12 | * all copies or substantial portions of the Software. |
shimniok | 0:826c6171fc1b | 13 | * |
shimniok | 0:826c6171fc1b | 14 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
shimniok | 0:826c6171fc1b | 15 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
shimniok | 0:826c6171fc1b | 16 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
shimniok | 0:826c6171fc1b | 17 | * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
shimniok | 0:826c6171fc1b | 18 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
shimniok | 0:826c6171fc1b | 19 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
shimniok | 0:826c6171fc1b | 20 | * THE SOFTWARE. |
shimniok | 0:826c6171fc1b | 21 | */ |
shimniok | 0:826c6171fc1b | 22 | |
shimniok | 0:826c6171fc1b | 23 | #ifndef MBED_SDHCFILESYSTEM_H |
shimniok | 0:826c6171fc1b | 24 | #define MBED_SDHCFILESYSTEM_H |
shimniok | 0:826c6171fc1b | 25 | |
shimniok | 0:826c6171fc1b | 26 | /** Implements FAT32 filesystem on SDHC cards, Copyright (c) 2008-2010, sford */ |
shimniok | 0:826c6171fc1b | 27 | |
shimniok | 0:826c6171fc1b | 28 | #include "mbed.h" |
shimniok | 0:826c6171fc1b | 29 | #include "FATFileSystem.h" |
shimniok | 0:826c6171fc1b | 30 | |
shimniok | 0:826c6171fc1b | 31 | /* Double Words */ |
shimniok | 0:826c6171fc1b | 32 | typedef unsigned long long uint64_t; |
shimniok | 0:826c6171fc1b | 33 | typedef long long sint64_t; |
shimniok | 0:826c6171fc1b | 34 | |
shimniok | 0:826c6171fc1b | 35 | /** Access the filesystem on an SD Card using SPI |
shimniok | 0:826c6171fc1b | 36 | * |
shimniok | 0:826c6171fc1b | 37 | * @code |
shimniok | 0:826c6171fc1b | 38 | * #include "mbed.h" |
shimniok | 0:826c6171fc1b | 39 | * #include "SDFileSystem.h" |
shimniok | 0:826c6171fc1b | 40 | * |
shimniok | 0:826c6171fc1b | 41 | * SDFileSystem sd(p5, p6, p7, p12, "sd"); // mosi, miso, sclk, cs |
shimniok | 0:826c6171fc1b | 42 | * |
shimniok | 0:826c6171fc1b | 43 | * int main() { |
shimniok | 0:826c6171fc1b | 44 | * FILE *fp = fopen("/sd/myfile.txt", "w"); |
shimniok | 0:826c6171fc1b | 45 | * fprintf(fp, "Hello World!\n"); |
shimniok | 0:826c6171fc1b | 46 | * fclose(fp); |
shimniok | 0:826c6171fc1b | 47 | * } |
shimniok | 0:826c6171fc1b | 48 | */ |
shimniok | 0:826c6171fc1b | 49 | class SDFileSystem : public FATFileSystem { |
shimniok | 0:826c6171fc1b | 50 | public: |
shimniok | 0:826c6171fc1b | 51 | |
shimniok | 0:826c6171fc1b | 52 | /** Create the File System for accessing an SD Card using SPI |
shimniok | 0:826c6171fc1b | 53 | * |
shimniok | 0:826c6171fc1b | 54 | * @param mosi SPI mosi pin connected to SD Card |
shimniok | 0:826c6171fc1b | 55 | * @param miso SPI miso pin conencted to SD Card |
shimniok | 0:826c6171fc1b | 56 | * @param sclk SPI sclk pin connected to SD Card |
shimniok | 0:826c6171fc1b | 57 | * @param cs DigitalOut pin used as SD Card chip select |
shimniok | 0:826c6171fc1b | 58 | * @param name The name used to access the virtual filesystem |
shimniok | 0:826c6171fc1b | 59 | */ |
shimniok | 0:826c6171fc1b | 60 | SDFileSystem(PinName mosi, PinName miso, PinName sclk, PinName cs, const char* name); |
shimniok | 0:826c6171fc1b | 61 | virtual int disk_initialize(); |
shimniok | 0:826c6171fc1b | 62 | virtual int disk_status(); |
shimniok | 0:826c6171fc1b | 63 | virtual int disk_read(unsigned char *buffer, unsigned long block_number, unsigned char count); |
shimniok | 0:826c6171fc1b | 64 | virtual int disk_write(const unsigned char *buffer, unsigned long block_number, unsigned char count); |
shimniok | 0:826c6171fc1b | 65 | virtual int disk_sync(); |
shimniok | 0:826c6171fc1b | 66 | virtual unsigned long disk_sector_count(); |
shimniok | 0:826c6171fc1b | 67 | |
shimniok | 0:826c6171fc1b | 68 | protected: |
shimniok | 0:826c6171fc1b | 69 | |
shimniok | 0:826c6171fc1b | 70 | int _cmd(int cmd, int arg); |
shimniok | 0:826c6171fc1b | 71 | int _cmdx(int cmd, int arg); |
shimniok | 0:826c6171fc1b | 72 | int _cmd8(); |
shimniok | 0:826c6171fc1b | 73 | int _cmd58(); |
shimniok | 0:826c6171fc1b | 74 | int initialise_card(); |
shimniok | 0:826c6171fc1b | 75 | int initialise_card_v1(); |
shimniok | 0:826c6171fc1b | 76 | int initialise_card_v2(); |
shimniok | 0:826c6171fc1b | 77 | |
shimniok | 0:826c6171fc1b | 78 | int _read(unsigned char *buffer, int length); |
shimniok | 0:826c6171fc1b | 79 | int _write(const unsigned char *buffer, int length); |
shimniok | 0:826c6171fc1b | 80 | unsigned long _sd_sectors(); |
shimniok | 0:826c6171fc1b | 81 | unsigned long _sectors; |
shimniok | 0:826c6171fc1b | 82 | |
shimniok | 0:826c6171fc1b | 83 | SPI _spi; |
shimniok | 0:826c6171fc1b | 84 | DigitalOut _cs; |
shimniok | 0:826c6171fc1b | 85 | int cdv; |
shimniok | 0:826c6171fc1b | 86 | }; |
shimniok | 0:826c6171fc1b | 87 | |
shimniok | 0:826c6171fc1b | 88 | #endif |