Diff: main.cpp

Revision:

1:34f0bfc62803

Parent:

0:4f67859595b2

Child:

2:1c12897871e5

--- a/main.cpp	Mon Jan 20 21:08:57 2014 +0000
+++ b/main.cpp	Mon Jan 27 21:58:45 2014 +0000
@@ -1,18 +1,19 @@
 #include "mbed.h"
 #include "SLCD.h"
 
-time_t seconds = time(NULL); // needed to start rtc
+time_t seconds = time(NULL); // needed to start rtc on reset to maintain reasonable time if hard reset
 
 SLCD slcd;
 Timer scroll;
-
+DigitalOut  led1(LED1);
+DigitalOut  led2(LED2);
 InterruptIn setmin (SW1);
 InterruptIn sethour (SW3);
 
 struct tm t;
 
-int i,j,k,lastscroll,display,minute,hour,colon,dp;
-char message[80];
+int i,j,k,lastscroll,display_timer,minute,hour,colon,dp;
+char message[60];
 void scroll_message();
 char buffer[32];
 
@@ -21,82 +22,57 @@
 
 
 main()
-{   
+{
+    slcd.All_Segments(1);
+    wait(2);
+    slcd.All_Segments(0);
+    wait(1);    
+    
+    led1 = 1;led2 = 1;
+    
+    sprintf(message, "    rtc clock    s3 sets the hours    s1 sets the minutes");
     
-    slcd.LCD_All_Segments_ON();
-    wait(.5);
-    slcd.LCD_All_Segments_OFF ();
-    wait(.5);
-    slcd.printf("    ");
-    wait(.5);
-    slcd.COLON_ON();
-    wait(.5);
-    slcd.DP1_ON();
-    wait(.5);
-    slcd.DP2_ON();
-    wait(.5);
-    slcd.DP3_ON();
-    wait(.5);   
-    slcd.printf("8888");
-    wait(.5);
-    slcd.COLON_OFF();
-    wait(.5);
-    slcd.DP1_OFF();
-    wait(.5);
-    slcd.DP2_OFF();
-    wait(.5);
-    slcd.DP3_OFF();
-    wait(.5);
-    slcd.DP1_ON();
-    wait(.5);
-    slcd.DP2_ON();
-    wait(.5);
-    slcd.DP3_ON();
-    wait(.5); 
-    slcd.LCD_All_Segments_OFF();     
+// scrolling message    
+    scroll.start();
+    while (i<58) {
+
+        while (i<58) {
+            scroll_message();
+         }
+    }
+    wait(1);
+    
+    setmin.rise(setminIRQ);     // start set Minutes IRQ
+    sethour.rise(sethourIRQ);   // start set Hours IRQ
     
-    sprintf(message, "    1234567890    ABCDEFGHIJKLMNOPQRSTUVWXYZ");
-                
-    scroll.start();
-    while (i<44){
-        
-        while (i<44) {
-            scroll_message();                     
+// rtc clock function    
+    while(1) {
+
+        time_t seconds = time(NULL);
+
+        if(display_timer>6) {
+            strftime(buffer, 4, "%H%M", localtime(&seconds));// display Hours,Minutes for 2 seconds
+            slcd.Colon(1);led2=0;
+            slcd.DP2(0);led1=1;
+        } else {
+            strftime(buffer, 4, "%M%S", localtime(&seconds));// display Minutes,Seconds for 8 seconds            
+            slcd.Colon(0);led2=1;
+            slcd.DP2(1);led1=0;
         }
+        slcd.printf(buffer);
+        wait(.5);
+        slcd.DP2(0);led1=1;
+        display_timer++;
+        if (display_timer>9)display_timer=0;
+        wait(.5);
     }
-     
-    
-   setmin.rise(setminIRQ);
-   sethour.rise(sethourIRQ);
-     
-  while(1){
-    
-    time_t seconds = time(NULL); 
-        
-    if(display>14) {
-        strftime(buffer, 4, "%H%M", localtime(&seconds));colon=1;dp=0;;
-        }
-        else{strftime(buffer, 4, "%M%S", localtime(&seconds));dp=1;colon=0;}
-      
-    if(colon){slcd.COLON_ON();slcd.DP2_OFF();}
-    if(dp){slcd.DP2_ON();slcd.COLON_OFF();}
-    slcd.printf(buffer);
-    wait(.25);
-    if(colon)slcd.COLON_ON();
-    if(dp){slcd.DP2_OFF();slcd.COLON_OFF();}
-    slcd.printf(buffer);
-    display++;
-    if (display>19)display=0;
-     wait(.25); 
-       
- } 
-}   
+}
 
 void scroll_message()
 {
-    if (scroll.read_ms() > lastscroll + 200) {
+    if (scroll.read_ms() > lastscroll + 350) {
         scroll.reset();
-        if (i > 44) {
+        if (i > 58) {
             i=0;
         }
         int j, k = i;
@@ -113,46 +89,48 @@
     }
 }
 
-void setminIRQ(void)
+void setminIRQ(void) // set Minutes ISR
 {
-    display=15;
+    display_timer=7;
     time_t seconds = time(NULL);
-    char buffer[2]; 
+    char buffer[2];
     strftime(buffer, 2,"%H", localtime(&seconds));
-    hour = atoi(buffer);     
+    hour = atoi(buffer);    // get Hour integer
     strftime(buffer, 2,"%M", localtime(&seconds));
-    minute = atoi(buffer);
+    minute = atoi(buffer);  // get Minutes integer
     minute++;
-    if(minute>59) minute=0;     
-    t.tm_sec = 0; 
-    t.tm_min = minute;  
-    t.tm_hour = hour;   
-    t.tm_mday = 28;  
-    t.tm_mon = 1;     
-    t.tm_year = 114;  
+    if(minute>59) minute=0;
+    t.tm_sec = 0;   // Seconds reset to zero
+    t.tm_min = minute;
+    t.tm_hour = hour;
+    t.tm_mday = 1;
+    t.tm_mon = 2;
+    t.tm_year = 114;
     set_time (mktime(&t));
-    
+
 }
 
-void sethourIRQ(void)
+void sethourIRQ(void) // set Hours ISR
 {
-    display=15;
+    display_timer=7;
     time_t seconds = time(NULL);
     char buffer[2];
+    strftime(buffer, 2,"%H", localtime(&seconds));
+    hour = atoi(buffer);    // get Hour integer
     strftime(buffer, 2,"%M", localtime(&seconds));
-    minute = atoi(buffer);      
-    strftime(buffer, 2,"%H", localtime(&seconds));
-    hour = atoi(buffer);
+    minute = atoi(buffer);  // get Minutes integer
     hour++;
-    if(hour>23) hour=0;     
-    t.tm_sec = 0; 
-    t.tm_min = minute;  
-    t.tm_hour = hour;   
-    t.tm_mday = 28;  
-    t.tm_mon = 1;     
-    t.tm_year = 114;  
+    if(hour>23) hour=0;
+    t.tm_sec = 0;   // Seconds reset to zero
+    t.tm_min = minute;
+    t.tm_hour = hour;
+    t.tm_mday = 1;
+    t.tm_mon = 2;
+    t.tm_year = 114;
     set_time (mktime(&t));
-    
+
 }
 
 
+
+