main.cpp

00001 #include "mbed.h"
00002 #include "SDFileSystem.h"
00003 
00004 SDFileSystem sd(PTE3, PTE1, PTE2, PTE4, "sd"); // MOSI, MISO, SCK, CS
00005 DigitalIn sd_cs(PTA16);
00006 Serial pc(USBTX, USBRX);
00007 FILE *fp;
00008 
00009 uint32_t do_list(const char *fsrc)
00010 {
00011     DIR *d = opendir(fsrc);
00012     struct dirent *p;
00013     uint32_t counter = 0;
00014 
00015     while ((p = readdir(d)) != NULL) {
00016         counter++;
00017         printf("%s\n", p->d_name);
00018     }
00019     closedir(d);
00020     return counter;
00021 }
00022 
00023 int main()
00024 {
00025     pc.printf("Initializing \n\r");
00026     wait(1);
00027     pc.printf("Opening nyah/nyoho.txt\n\r");
00028 
00029     wait(1);
00030     fp = fopen("/sd/nyah/nyoho.txt", "r+");
00031 
00032     if (fp == NULL) {
00033         pc.printf("Unable to open the file \r\n");
00034     } else {
00035         pc.printf("\n\rFile pointer address: 0x%X\n\r", &fp);
00036         
00037         pc.printf("\n\rWriting to nyah/nyoho.txt\n\r");
00038         wait(0.25);
00039 
00040         fprintf(fp, "The quick brown fox jumps over the lazy dog");
00041 
00042         rewind(fp);
00043         fprintf(fp, "Seiya is trying to eat the SD card please stop him");
00044         wait(0.25);
00045 
00046         pc.printf("\n\rFlushing the buffer...\n\r");
00047         int flush = fflush(fp);
00048         wait(0.25);
00049         if (flush == 0) pc.printf("Flush Successful!\n\r");
00050         else pc.printf("**WARNING** Flush Failed\n\r");
00051     }
00052     wait(1);
00053     fclose(fp);
00054     pc.printf("\n\rDone\r\n");
00055     wait(1);
00056     exit(3);
00057 }