Diff: main.cpp

Revision:

0:1e94dd911147

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Wed Oct 19 06:03:34 2016 +0000
@@ -0,0 +1,34 @@
+#include "mbed.h"
+
+DigitalOut myled(LED1);
+
+int main() {
+    
+    printf("RTC example\n"); 
+    //set_time(1387188300); // 起始时间Set RTC time to 16 December 2013 10:05:00 UTC
+                           //从2013 10:05:00 开始计时
+                           //按秒调整时间
+                           //起始时间加一天即1387188300+86400
+                           //起始时间加一月即1387188300+2592000  按30天算
+                           //起始时间加一月即1387188300+31536000 按365天算
+                           //1476612300
+    set_time(1476612300); // Sun Oct 16 10:05:53 2016
+                          
+    printf("Date and time are set.\n");
+
+    while(1) {
+
+        time_t seconds = time(NULL);
+
+        //printf("Time as seconds since January 1, 1970 = %d\n", seconds);
+        
+        printf("Time as a basic string = %s", ctime(&seconds));//把time_t类型转换成字符串类型
+
+        //char buffer[32];
+        //strftime(buffer, 32, "%I:%M:%S %p\n", localtime(&seconds));
+        //printf("Time as a custom formatted string = %s", buffer);
+
+        myled = !myled;      
+        wait(1);
+    }
+}
\ No newline at end of file