Diff: main.cpp

Revision:

0:6444a20e1a0e

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Wed May 18 14:43:41 2022 +0000
@@ -0,0 +1,46 @@
+#include "mbed.h"
+#include "stdio.h"
+#include "stdint.h"
+#include "stdlib.h"
+#include "SPI.h"
+#include "SDFileSystem.h"
+
+Serial terminal(USBTX, USBRX);
+
+//Create an SDFileSystem object
+SDFileSystem sd(PA_7, PA_6, PA_5, PB_6, "sd"); // mosi, miso, sclk, cs
+
+int main()
+{
+   wait(0.5);
+    terminal.baud(115200);
+    //Mount the filesystem
+   sd.mount();
+    //Perform a write test
+    printf("\nWriting to SD card...");
+    FILE *fp = fopen("/sd/sdtest.txt", "w");
+    if (fp != NULL) {
+        fprintf(fp, "We're writing to an SD card!");
+        fclose(fp);
+        printf("success!\n");
+    } else {
+        printf("failed!\n");
+    }
+
+    //Perform a read test
+    printf("Reading from SD card...");
+    fp = fopen("/sd/sdtest.txt", "r");
+    if (fp != NULL) {
+        char c = fgetc(fp);
+        if (c == 'W')
+            printf("success!\n");
+        else
+            printf("incorrect char (%c)!\n", c);
+        fclose(fp);
+    } else {
+        printf("failed!\n");
+    }
+    sd.unmount();
+    //Unmount the filesystem
+ // sd.unmount();
+}