main.cpp

00001 #include "main.h"
00002 
00003 // objects defined here with pin numbers (if required)
00004 DigitalIn button_a(p29);
00005 DigitalIn button_b(p28);
00006 DigitalIn button_c(p27);
00007 DigitalIn button_d(p26);
00008 
00009 
00010 
00011 N5110 lcd(p8,p9,p10,p11,p13,p21);
00012 BusOut leds(LED4,LED3,LED2,LED1);
00013 
00014 AnalogIn ldr(p15);
00015 
00016 PwmOut red_led(p24);
00017 PwmOut green_led(p23);
00018 PwmOut blue_led(p22);
00019 
00020 AnalogIn tmp36(p16);
00021 
00022 AnalogIn pot_0(p20);
00023 AnalogIn pot_1(p19);
00024 AnalogIn pot_2(p17);
00025 
00026 Tone speaker(p18);
00027 ShiftReg shift;
00028 
00029 
00030 int main()
00031 {
00032     init();  // initialise peripherals
00033     welcome();  // display welcome message
00034 
00035     while(1) {  // infinite loop
00036 
00037         print_menu();  // this re-prints the menu at the start of every loop
00038 
00039         // if any buttons pressed then jump to appropriate menu function
00040         if (button_a.read() == 1) {
00041             mode_A();
00042         }
00043         if (button_b.read() == 1) {
00044             mode_B();
00045         }
00046         if (button_c.read() == 1) {
00047             mode_C();
00048         }
00049         if (button_d.read() == 1) {
00050             mode_D();
00051         }
00052 
00053         // delay to prevent multiple button presses being detected
00054         wait_ms(250);
00055 
00056     }lcd.clear();
00057 }
00058 
00059 void init()
00060 {
00061     // turn off LEDs
00062     red_led = 1.0;
00063     green_led = 1.0;
00064     blue_led = 1.0;
00065     
00066     // turn off 7-seg display
00067     shift.write(0x00);
00068 
00069     // initialise LCD
00070     lcd.init();
00071 
00072     // PCB has external pull-down resistors so turn the internal ones off
00073     button_a.mode(PullNone);
00074     button_b.mode(PullNone);
00075     button_c.mode(PullNone);
00076     button_d.mode(PullNone);
00077 }
00078 
00079 void print_menu()
00080 {
00081     lcd.clear();
00082     lcd.printString("Press button",0,0);
00083     lcd.printString("to select",0,1);
00084     lcd.printString("A: Mode A",0,2);
00085     lcd.printString("B: Mode B",0,3);
00086     lcd.printString("C: Mode C",0,4);
00087     lcd.printString("D: Mode D",0,5);
00088     lcd.refresh();
00089 }
00090 
00091 void welcome()
00092 {
00093     lcd.clear();
00094     lcd.printString("  Automotive",0,0);
00095     lcd.printString("  Electronics",0,1);
00096     lcd.printString("   Simulator",0,2);
00097     lcd.printString("   Al Husien",0,3);
00098     lcd.printString("    Dabashi",0,4);
00099     lcd.printString("  201042563",0,5);
00100     lcd.refresh();
00101     wait(5.0);
00102 }