Diff: main.cpp

Revision:

0:3330756dbb42

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Mon Mar 28 15:51:48 2011 +0000
@@ -0,0 +1,99 @@
+#include "mbed.h"
+
+//LEDs to indicate key presses
+DigitalOut myled1(LED1);
+DigitalOut myled2(LED2);
+DigitalOut myled3(LED3);
+
+//init serial trx throught USB
+Serial pc(USBTX, USBRX);
+
+//init 1 sec timer
+Ticker secs;
+
+//variables
+char x,y,z,t,u,min = 0,sec = 0,hr = 0;
+
+//mytick give a second of delay and print the time out.
+void mytick() {
+    sec++;
+    if (sec >= 59) {
+        sec = 0;
+        min ++;
+        if (min >= 59) {
+            min = 0;
+            hr ++;
+            if (hr >= 23) {
+                hr = 0;
+            }
+        }
+    }
+    pc.printf(" %d:%d:%d   \r",hr,min,sec);
+}
+
+//software entry point
+void main(void){
+    //print general details
+    pc.printf("hour up/down = q/a\n\r");
+    pc.printf("minute up/down = w/s\n\r");
+    pc.printf("second up/down = e/d\r\n\n\n");
+    //activate the timer
+    secs.attach(&mytick,1);
+
+    //do forever
+    while (1) {
+
+        myled1 = 0;
+        myled2 = 0;
+        myled3 = 0;
+        //if any key is pressed, enter this portion of code
+        if (pc.readable() == 1) {
+            //get the character
+            char ch = pc.getc();
+            switch (ch) {
+                case 'q':
+                    if (hr >= 23)
+                        hr =0;
+                    myled1 = 1;
+                    hr++;
+                    pc.printf(" %d:%d:%d   \r",hr,min,sec);
+                    break;
+                case 'a':
+                    if (hr >= 23)
+                        hr =0;
+                    myled1 = 1;
+                    hr--;
+                    pc.printf(" %d:%d:%d   \r",hr,min,sec);
+                    break;
+                case 'w':
+                    if (min >= 59)
+                        min =0;
+                    myled2 = 1;
+                    min++;
+                    pc.printf(" %d:%d:%d   \r",hr,min,sec);
+                    break;
+                case 's':
+                    if (min >= 59)
+                        min =0;
+                    myled2 = 1;
+                    min--;
+                    pc.printf(" %d:%d:%d   \r",hr,min,sec);
+                    break;
+                case 'e':
+                    if (sec >= 59)
+                        sec =0;
+                    myled3 = 1;
+                    sec++;
+                    pc.printf(" %d:%d:%d   \r",hr,min,sec);
+                    break;
+                case 'd':
+                    if (sec >= 59)
+                        sec =0;
+                    myled3 = 1;
+                    sec--;
+                    pc.printf(" %d:%d:%d   \r",hr,min,sec);
+                    break;
+            }
+        }
+    }
+}