SDFileSystem for STM32F746NG Discovery with 4bit SDMMC interface on fixed pins in DMA mode

Dependencies:   BSP_DISCO_F746NG SDFileSystem mbed

Revision:
0:134f7a094930
Child:
1:7f463f6f904e
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Thu Mar 31 17:43:47 2016 +0000
@@ -0,0 +1,52 @@
+#include "mbed.h"
+#include "SDFileSystem.h"
+#include <stdio.h>
+
+DigitalOut myled(LED1);
+SDFileSystem sd("sd");
+
+// trim '\n'
+void ntrim(char *str)
+{
+    int i;
+    for (i = 0; str[i] != 0; ++i);
+
+    if (i > 0 && str[i - 1] == '\n')
+        str[i - 1] = 0;
+}
+
+
+int main() {  
+    sd.mount();
+    FILE * fp;
+        fp = fopen("/sd/test.txt", "w");
+        if (fp == NULL)
+        {
+            printf("open error!!\r\n");
+            while(1);
+        }
+        fprintf(fp,"Writing to SD Card");
+        fclose (fp);       
+        fp = fopen("/sd/test.txt", "r");
+        if (fp == NULL)
+        {
+            printf("open error!!\r\n");
+            while(1);
+        }
+        // read text file
+        char buf[1024];
+        while (fgets(buf, sizeof(buf), fp) != NULL)
+        {
+            ntrim(buf);
+            printf("%s\r\n", buf);
+        }
+
+        // file close
+        fclose(fp);
+    while(1) {
+        myled = 1; // LED is ON
+        wait(0.2); // 200 ms
+        myled = 0; // LED is OFF
+        wait(1.0); // 1 sec
+    }
+}