Example for reading and writing SD card using SPI mode.
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SDFileSystem Class Reference
Access the filesystem on an SD Card using SPI. More...
#include <SDFileSystem.h>
Inherits FATFileSystem.
Public Member Functions | |
SDFileSystem (PinName mosi, PinName miso, PinName sclk, PinName cs, const char *name) | |
Create the File System for accessing an SD Card using SPI. | |
virtual FileHandle * | open (const char *name, int flags) |
Opens a file on the filesystem. | |
virtual int | remove (const char *filename) |
Removes a file path. | |
virtual int | format () |
Formats a logical drive, FDISK artitioning rule, 512 bytes per cluster. | |
virtual DirHandle * | opendir (const char *name) |
Opens a directory on the filesystem. | |
virtual int | mkdir (const char *name, mode_t mode) |
Creates a directory path. |
Detailed Description
Access the filesystem on an SD Card using SPI.
#include "mbed.h" #include "SDFileSystem.h" SDFileSystem sd(p5, p6, p7, p12, "sd"); // MOSI, MISO, SCLK, SSEL int main() { FILE *fp = fopen("/sd/mbed.txt", "w"); fprintf(fp, "Hello World!\n"); fclose(fp); }
Definition at line 44 of file SDFileSystem.h.
Constructor & Destructor Documentation
SDFileSystem | ( | PinName | mosi, |
PinName | miso, | ||
PinName | sclk, | ||
PinName | cs, | ||
const char * | name | ||
) |
Create the File System for accessing an SD Card using SPI.
- Parameters:
-
mosi SPI mosi pin connected to SD Card miso SPI miso pin conencted to SD Card sclk SPI sclk pin connected to SD Card cs DigitalOut pin used as SD Card chip select name The name used to access the virtual filesystem
Definition at line 123 of file SDFileSystem.cpp.
Member Function Documentation
int format | ( | ) | [virtual, inherited] |
Formats a logical drive, FDISK artitioning rule, 512 bytes per cluster.
Definition at line 111 of file FATFileSystem.cpp.
int mkdir | ( | const char * | name, |
mode_t | mode | ||
) | [virtual, inherited] |
Creates a directory path.
Definition at line 129 of file FATFileSystem.cpp.
FileHandle * open | ( | const char * | name, |
int | flags | ||
) | [virtual, inherited] |
Opens a file on the filesystem.
Definition at line 68 of file FATFileSystem.cpp.
DirHandle * opendir | ( | const char * | name ) | [virtual, inherited] |
Opens a directory on the filesystem.
Definition at line 120 of file FATFileSystem.cpp.
int remove | ( | const char * | filename ) | [virtual, inherited] |
Removes a file path.
Definition at line 102 of file FATFileSystem.cpp.
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