Diff: main.cpp

Revision:

0:795a02b2bb68

diff -r 000000000000 -r 795a02b2bb68 main.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Tue Nov 06 19:47:08 2018 +0000
@@ -0,0 +1,39 @@
+#include "mbed.h"
+#include "SDFileSystem.h"
+
+SDFileSystem sd(PTE3, PTE1, PTE2, PTE4, "sd"); // MOSI, MISO, SCK, CS
+Serial pc(USBTX, USBRX);
+FILE *fp;
+char buffer[1024];
+
+int main() {
+    pc.printf("Initializing \n");
+    wait(2);
+    /*
+    fp = fopen("/sd/hello.txt", "r");
+    if (fp != NULL) {
+        fclose(fp);
+        remove("/sd/hello.txt");
+        pc.printf("Remove an existing file with the same name \n");
+    }
+
+    printf("\nWriting data to the sd card \n");
+    fp = fopen("/sd/hello.txt", "w");
+    if (fp == NULL) {
+        pc.printf("Unable to write the file \n");
+    } else {
+        fprintf(fp, "mbed SDCard application!");
+        fclose(fp);
+        pc.printf("File successfully written! \n");
+    }
+
+    printf("\nReading data from the SD card. \n");
+    fp = fopen("/sd/hello.txt", "r");
+    if (fp != NULL) {
+        int size = fread(buffer, sizeof(char), 1024, fp);
+        printf("Number of data read: %d, text from hello.txt file: %s \n", size, buffer);
+        fclose(fp);
+    }
+    printf("End of Lab 4. \n");
+    */
+}