Diff: rtc.h

Revision:

1:81d0d835991d

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/rtc.h	Mon Dec 21 12:37:40 2015 +0000
@@ -0,0 +1,37 @@
+#include "mbed.h"
+Serial pc (USBTX,USBRX);
+C12832_LCD lcd;
+
+int main () {
+    char timeString[20];
+    pc.baud(115200);
+    lcd.cls();
+    lcd.set_contrast(30); // 0-63
+    
+    // setup time structure
+    struct tm t;
+    t.tm_sec = 00;    // 0-59
+    t.tm_min = 21;    // 0-59
+    t.tm_hour = 16;   // 0-23
+    t.tm_mday = 21;   // 1-31
+    t.tm_mon = 12;     // 0-11
+    t.tm_year = 115;  // year since 1900
+   
+    // convert to timestamp 
+    time_t secondsSince1970 = mktime(&t);
+    pc.printf("Seconds since January 1, 1970: %d\r\n", secondsSince1970);
+
+    // Set time and start RTC
+    set_time(secondsSince1970);
+     
+   while(1) { 
+        secondsSince1970 = time(NULL);            
+        strftime(timeString, 20, "%H:%M:%S\r\n", localtime(&secondsSince1970));
+        pc.printf("aktuelle Zeit = %s", timeString);
+        lcd.locate(0,0);
+        lcd.printf("aktuelle Zeit = %s", timeString);
+            
+        wait(1.0);
+    }
+}
+