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@0:525c842a3c89, 2014-03-17 (annotated)

Committer:
screamer
Date:
Mon Mar 17 15:45:16 2014 +0000
Revision:
0:525c842a3c89
Child:
1:93d41c73ac7d
Initial release

Who changed what in which revision?

UserRevisionLine numberNew contents of line
screamer 0:525c842a3c89 1 #include "mbed.h"
screamer 0:525c842a3c89 2 #include "SDFileSystem.h"
screamer 0:525c842a3c89 3 #include "bdebug.h"
screamer 0:525c842a3c89 4
screamer 0:525c842a3c89 5 SDFileSystem sd(D11, D12, D13, D10, "sd"); // MOSI, MISO, SCK, CS
screamer 0:525c842a3c89 6 DigitalOut led1(LED1);
screamer 0:525c842a3c89 7 DigitalOut led2(LED2);
screamer 0:525c842a3c89 8 FILE *fp;
screamer 0:525c842a3c89 9
screamer 0:525c842a3c89 10 int main() {
screamer 0:525c842a3c89 11 blink(led1, 1, 1);
screamer 0:525c842a3c89 12
screamer 0:525c842a3c89 13 fp = fopen("/sd/hello.txt", "r");
screamer 0:525c842a3c89 14 if (fp != NULL) {
screamer 0:525c842a3c89 15 fclose(fp);
screamer 0:525c842a3c89 16 remove("/sd/hello.txt");
screamer 0:525c842a3c89 17 }
screamer 0:525c842a3c89 18
screamer 0:525c842a3c89 19 fp = fopen("/sd/hello.txt", "w");
screamer 0:525c842a3c89 20 if (fp == NULL) {
screamer 0:525c842a3c89 21 blink(led2, 2);
screamer 0:525c842a3c89 22 } else {
screamer 0:525c842a3c89 23 blink(led1, 20, 0.05);
screamer 0:525c842a3c89 24 led1 = 1;
screamer 0:525c842a3c89 25 fprintf(fp, "mbed SDCard application!");
screamer 0:525c842a3c89 26 fclose(fp);
screamer 0:525c842a3c89 27 }
screamer 0:525c842a3c89 28
screamer 0:525c842a3c89 29 blink(led2, 1, 10);
screamer 0:525c842a3c89 30 }