main.cpp

00001 #include "mbed.h"
00002 #include "LCD_DISCO_F429ZI.h"
00003 #include <math.h>
00004 
00005 LCD_DISCO_F429ZI lcd;
00006 
00007 DigitalOut green(LED1, 0);
00008 DigitalOut red(LED2, 1);
00009 
00010 InterruptIn button(USER_BUTTON);
00011 
00012 uint8_t str1[30], str2[30];
00013 
00014 int qsecs = 0;
00015 int seconds = 0;
00016 int minutes = 0;
00017 int hours = 0;
00018 
00019 float multiplier = 9.5;
00020 
00021 int radius = 70;
00022 int centerx = 120;
00023 int centery = 240;
00024 
00025 float delaytime = 0.25;
00026 
00027 struct save
00028 {
00029     bool exists;
00030     int h;
00031     int m;
00032     int s;
00033 }one, two;
00034 
00035 void button_pressed()
00036 {
00037     
00038     one.exists = 1;
00039     one.h = hours;
00040     one.m = minutes;
00041     one.s = seconds;
00042     
00043     red = 0;
00044     green = 1;   
00045     hours = 0; 
00046     minutes = 0;
00047     seconds = 0;
00048     qsecs = 0;
00049     
00050     lcd.Clear(LCD_COLOR_WHITE);
00051 }
00052 
00053 void button_notpressed()
00054 {
00055    green = 0; 
00056    red = 0;
00057 }
00058 
00059 void DrawClock(int second)
00060 {
00061     
00062     if (second == 0)
00063         lcd.Clear(LCD_COLOR_WHITE);
00064 
00065     double angle = second/multiplier;
00066     double endx = centerx+radius*sin(angle);
00067     double endy = centery-radius*cos(angle);
00068     lcd.DrawCircle(centerx, centery, radius);
00069     lcd.DrawLine(centerx, centery, endx, endy);
00070 }
00071 
00072 int main()
00073 {   
00074     BSP_LCD_SetFont(&Font20);
00075     lcd.DisplayStringAt(0, LINE(5), (uint8_t *)"Timer Program", CENTER_MODE);
00076     lcd.DisplayStringAt(0, LINE(6), (uint8_t *)"Mohammad Mustafa", CENTER_MODE);
00077     wait(2);
00078     lcd.Clear(LCD_COLOR_WHITE);
00079     
00080     one.exists = 0;
00081     
00082     while(1)
00083     {
00084         button.rise(&button_pressed);
00085         button.fall(&button_notpressed);
00086             
00087         if(button.read()==0)   
00088         {
00089             red = !red; 
00090             qsecs++;
00091         }   
00092         if(qsecs%4 == 0 && qsecs != 0)
00093         {
00094             qsecs = 0;
00095             seconds++;
00096         }
00097             
00098         if(seconds%60 == 0 && seconds != 0)
00099         {
00100             seconds = 0;
00101             minutes++;
00102         }
00103         if(minutes%12 == 0 && minutes != 0)
00104         {   
00105             minutes = 0;
00106             hours++;
00107         }
00108         
00109         if(one.exists)
00110         {
00111             sprintf((char*)str1, "Last Time: %d:%d:%d", one.h, one.m, one.s);
00112             lcd.DisplayStringAt(0, LINE(0), (uint8_t *)&str1, LEFT_MODE);
00113         }
00114         
00115         sprintf((char*)str1, "HR:MIN:SEC:qSEC");
00116         sprintf((char*)str2, "%d:%d:%d:%d", hours, minutes, seconds, qsecs);
00117         lcd.DisplayStringAt(0, LINE(6), (uint8_t *)&str1, CENTER_MODE);
00118         lcd.DisplayStringAt(0, LINE(7), (uint8_t *)&str2, CENTER_MODE);
00119         
00120         DrawClock(seconds%60);
00121         wait(delaytime);
00122     }
00123 }
00124 
00125 
00126