Shields / Mbed 2 deprecated Seeed_SDCard_Shield

Example program for SD card shield on SPI pins D10-D13

Dependencies:   SDFileSystem mbed

The program uses the standard Arduino shields SPI pins:

SignalPin
SCKD13
MISOD12
MOSID11
CSD10

Note that this shield doesn't use the standard SPI pins, but relies on non-standard 6-pin SPI header located at the shield bottom. To make it work you will have to bridge those pins as shown on the image (the green SPI pins).

SignalPin 1Pin 2
MOSID11SPI4
MISOD12SPI1
SCKD13SPI3
CSD10D4

main.cpp

Committer:
screamer
Date:
2014-03-17
Revision:
0:525c842a3c89
Child:
1:93d41c73ac7d

File content as of revision 0:525c842a3c89:

#include "mbed.h"
#include "SDFileSystem.h"
#include "bdebug.h"

SDFileSystem sd(D11, D12, D13, D10, "sd"); // MOSI, MISO, SCK, CS
DigitalOut led1(LED1);
DigitalOut led2(LED2);
FILE *fp;

int main() {
    blink(led1, 1, 1);
    
    fp = fopen("/sd/hello.txt", "r");
    if (fp != NULL) {
        fclose(fp);
        remove("/sd/hello.txt");
    }
    
    fp = fopen("/sd/hello.txt", "w");
    if (fp == NULL) {
        blink(led2, 2);
    } else {
        blink(led1, 20, 0.05);
        led1 = 1;
        fprintf(fp, "mbed SDCard application!");
        fclose(fp);
    }
    
    blink(led2, 1, 10);
}