Diff: main.cpp

Revision:

4:8b1816e38262

Parent:

2:8e082c838a45

Child:

6:8f5c84d52659

--- a/main.cpp	Thu Dec 04 04:18:10 2014 +0000
+++ b/main.cpp	Tue Dec 09 04:27:42 2014 +0000
@@ -1,7 +1,7 @@
 //------------------------------------------------------------
 // Demo program for LCD ACM1602NI using I2C interface
 //      Pullup resistors for SDA and SCL: 4.7 kΩ
-// 2014/12/03, Copyright (c) 2014 MIKAMI, Naoki
+// 2014/12/09, Copyright (c) 2014 MIKAMI, Naoki
 //------------------------------------------------------------
 
 #include "ACM1602NI.hpp"
@@ -21,9 +21,15 @@
 void TimerIsr()
 {
     static int k = 0;
+    int sec = k % 60;   // seconds
+    int min = k / 60;   // minits
     char str[20];
-    sprintf(str, "%d", k++);
-    lcd_.WriteStringXY(str, 0, 1);
+    sprintf(str, "%d'", min);
+    string minSec = str;
+    sprintf(str, "%2d\"", sec);
+    minSec = minSec + str;
+    lcd_.WriteStringXY(minSec, 0, 1);
+    k++;
 }
 
 int main()