Diff: main.cpp

Revision:

0:9eb1ed79e0a3

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Mon Nov 21 03:54:46 2011 +0000
@@ -0,0 +1,45 @@
+//
+// Toggle running with reset button  by K.Shibata
+// 
+// Push reset button to stop running.
+// Push reset button to run again. 
+//
+
+#include "mbed.h"
+
+DigitalOut myled(LED1);
+
+LocalFileSystem local( "local" );   // Create the local filesystem under the name "local"
+
+int main() {
+    FILE *fp;
+    bool is_checked = false;
+
+    fp = fopen( "/local/toggle.txt", "r" ); // Open "toggle.txt" on the local file system for reading.
+    if ( fp != NULL ) {
+        int c = fgetc( fp );
+        if ( c == '1' ) {
+            is_checked = true;
+        }
+        fclose( fp );
+    }
+
+    fp = fopen( "/local/toggle.txt", "w" ); // Open "toggle.txt" on the local file system for writing.
+    if ( fp != NULL ) {
+        if ( is_checked ) {
+            fputc( '0', fp );
+        } else {
+            fputc( '1', fp );
+        }
+        fclose( fp );
+    }
+
+    if ( is_checked ) while( 1 ); // Infinite loop.
+
+    while (1) {
+        myled = 1;
+        wait(0.2);
+        myled = 0;
+        wait(0.2);
+    }
+}