Pendrive to sd card data transfer coding
Dependencies: FatFileSystem TextLCD mbed
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SDFileSystem.h@1:77e50c06ea01, 2015-04-16 (annotated)
- Committer:
- sathguru
- Date:
- Thu Apr 16 05:12:20 2015 +0000
- Revision:
- 1:77e50c06ea01
Pendrive to sd card data transfer coding
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
sathguru | 1:77e50c06ea01 | 1 | /* mbed Microcontroller Library - SDFileSystem |
sathguru | 1:77e50c06ea01 | 2 | * Copyright (c) 2008-2009, sford |
sathguru | 1:77e50c06ea01 | 3 | */ |
sathguru | 1:77e50c06ea01 | 4 | |
sathguru | 1:77e50c06ea01 | 5 | // VERY DRAFT CODE!!! |
sathguru | 1:77e50c06ea01 | 6 | |
sathguru | 1:77e50c06ea01 | 7 | #ifndef SDFILESYSTEM_H |
sathguru | 1:77e50c06ea01 | 8 | #define SDFILESYSTEM_H |
sathguru | 1:77e50c06ea01 | 9 | |
sathguru | 1:77e50c06ea01 | 10 | #include "mbed.h" |
sathguru | 1:77e50c06ea01 | 11 | #include "FATFileSystem.h" |
sathguru | 1:77e50c06ea01 | 12 | |
sathguru | 1:77e50c06ea01 | 13 | /* Class: SDFileSystem |
sathguru | 1:77e50c06ea01 | 14 | * Access the filesystem on an SD Card using SPI |
sathguru | 1:77e50c06ea01 | 15 | * |
sathguru | 1:77e50c06ea01 | 16 | * Example: |
sathguru | 1:77e50c06ea01 | 17 | * > SDFileSystem sd(p5, p6, p7, p12, "sd"); |
sathguru | 1:77e50c06ea01 | 18 | * > |
sathguru | 1:77e50c06ea01 | 19 | * > int main() { |
sathguru | 1:77e50c06ea01 | 20 | * > FILE *fp = fopen("/sd/myfile.txt", "w"); |
sathguru | 1:77e50c06ea01 | 21 | * > fprintf(fp, "Hello World!\n"); |
sathguru | 1:77e50c06ea01 | 22 | * > fclose(fp); |
sathguru | 1:77e50c06ea01 | 23 | * > } |
sathguru | 1:77e50c06ea01 | 24 | */ |
sathguru | 1:77e50c06ea01 | 25 | class SDFileSystem : public FATFileSystem { |
sathguru | 1:77e50c06ea01 | 26 | public: |
sathguru | 1:77e50c06ea01 | 27 | |
sathguru | 1:77e50c06ea01 | 28 | /* Constructor: SDFileSystem |
sathguru | 1:77e50c06ea01 | 29 | * Create the File System for accessing an SD Card using SPI |
sathguru | 1:77e50c06ea01 | 30 | * |
sathguru | 1:77e50c06ea01 | 31 | * Variables: |
sathguru | 1:77e50c06ea01 | 32 | * mosi - SPI mosi pin connected to SD Card |
sathguru | 1:77e50c06ea01 | 33 | * miso - SPI miso pin conencted to SD Card |
sathguru | 1:77e50c06ea01 | 34 | * sclk - SPI sclk pin connected to SD Card |
sathguru | 1:77e50c06ea01 | 35 | * cs - DigitalOut pin used as SD Card chip select |
sathguru | 1:77e50c06ea01 | 36 | * name - The name used to access the filesystem |
sathguru | 1:77e50c06ea01 | 37 | */ |
sathguru | 1:77e50c06ea01 | 38 | SDFileSystem(PinName mosi, PinName miso, PinName sclk, PinName cs, const char* name); |
sathguru | 1:77e50c06ea01 | 39 | virtual int disk_initialize(); |
sathguru | 1:77e50c06ea01 | 40 | virtual int disk_write(const char *buffer, int block_number); |
sathguru | 1:77e50c06ea01 | 41 | virtual int disk_read(char *buffer, int block_number); |
sathguru | 1:77e50c06ea01 | 42 | virtual int disk_status(); |
sathguru | 1:77e50c06ea01 | 43 | virtual int disk_sync(); |
sathguru | 1:77e50c06ea01 | 44 | virtual int disk_sectors(); |
sathguru | 1:77e50c06ea01 | 45 | |
sathguru | 1:77e50c06ea01 | 46 | protected: |
sathguru | 1:77e50c06ea01 | 47 | |
sathguru | 1:77e50c06ea01 | 48 | int _cmd(int cmd, int arg); |
sathguru | 1:77e50c06ea01 | 49 | int _cmdx(int cmd, int arg); |
sathguru | 1:77e50c06ea01 | 50 | int _cmd8(); |
sathguru | 1:77e50c06ea01 | 51 | int _cmd58(); |
sathguru | 1:77e50c06ea01 | 52 | int initialise_card(); |
sathguru | 1:77e50c06ea01 | 53 | int initialise_card_v1(); |
sathguru | 1:77e50c06ea01 | 54 | int initialise_card_v2(); |
sathguru | 1:77e50c06ea01 | 55 | |
sathguru | 1:77e50c06ea01 | 56 | |
sathguru | 1:77e50c06ea01 | 57 | int _read(char *buffer, int length); |
sathguru | 1:77e50c06ea01 | 58 | int _write(const char *buffer, int length); |
sathguru | 1:77e50c06ea01 | 59 | int _sd_sectors(); |
sathguru | 1:77e50c06ea01 | 60 | int _sectors; |
sathguru | 1:77e50c06ea01 | 61 | |
sathguru | 1:77e50c06ea01 | 62 | SPI _spi; |
sathguru | 1:77e50c06ea01 | 63 | DigitalOut _cs; |
sathguru | 1:77e50c06ea01 | 64 | }; |
sathguru | 1:77e50c06ea01 | 65 | |
sathguru | 1:77e50c06ea01 | 66 | #endif |