Diff: sd.cpp

Revision:

2:bcd60a69583f

Parent:

0:77857a36b4ff

--- a/sd.cpp	Fri Mar 27 08:40:00 2015 +0000
+++ b/sd.cpp	Thu Apr 02 20:09:44 2015 +0000
@@ -1,9 +1,13 @@
 #include "mbed.h"
 #include "SDFileSystem.h"
+#include "debug.h"
 //#include "main.h"
 
 int sd_append(char*);
 
+DigitalIn sdDetect(PTE6,PullDown);      // SD Detect Pin
+
+
 SDFileSystem sd(PTE3, PTE1, PTE2, PTE4, "sd"); // MOSI, MISO, SCK, CS
 FILE *fp;
 //Serial pc(USBTX, USBRX);
@@ -14,25 +18,37 @@
 double la = 12345.67;
 
 int sd_append(char* CSVOutput) {
-    printf("Initializing \n");
-    wait(2);
+    
+    D(printf("Booting... SD Preset?=%d\r\n",sdDetect.read()));
+    
+    // Test to see if SD card is present, if not return.
+    if (sdDetect == NULL){
+        D(printf("No SD card present\r\n"));
+        return -1;
+    }
+    
+    
+    D(printf("Initializing \r\n"));
 
+/*
     fp = fopen("/sd/metaData.csv", "r");
     if (fp != NULL) {
         fclose(fp);
         //remove("/sd/hello.txt");
-        printf("Could not open file\n");
+        D(printf("Could not open file\n"));
+        return -1;
     }
+*/
 
-
-    printf("\r\nAppending data to the sd card \r\n");
+    D(printf("Appending data to the sd card \r\n"));
     fp = fopen("/sd/metaData.csv", "a");
     if (fp == NULL) {
-        printf("Unable to write the file \r\n");
+        D(printf("Unable to write the file \r\n"));
     } else {
         fprintf(fp, "%s", CSVOutput);
         fclose(fp);
-        printf("File successfully written! \r\n");
+        D(printf("File successfully written! \r\n"));
+        return -1;
     }
 
 /*