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 N5110 lcd(p8,p9,p10,p11,p13,p21);
00010 BusOut leds(LED4,LED3,LED2,LED1);
00011 
00012 AnalogIn ldr(p15);
00013 
00014 PwmOut red_led(p24);
00015 PwmOut green_led(p23);
00016 PwmOut blue_led(p22);
00017 
00018 AnalogIn tmp36(p16);
00019 
00020 AnalogIn pot_0(p20);
00021 AnalogIn pot_1(p19);
00022 AnalogIn pot_2(p17);
00023 
00024 Tone speaker(p18);
00025 ShiftReg shift;
00026 
00027 int main()
00028 {
00029     init();  // initialise peripherals
00030     welcome();  // display welcome message
00031 
00032     while(1) {  // infinite loop
00033 
00034         print_menu();  // this re-prints the menu at the start of every loop
00035 
00036         // if any buttons pressed then jump to appropriate menu function
00037         if (button_a.read() == 1) {
00038             mode_A();
00039         }
00040         if (button_b.read() == 1) {
00041             mode_B();
00042         }
00043         if (button_c.read() == 1) {
00044             mode_C();
00045         }
00046         if (button_d.read() == 1) {
00047             mode_D();
00048         }
00049 
00050         // delay to prevent multiple button presses being detected
00051         wait_ms(250);
00052 
00053     }
00054 }
00055 
00056 void init()
00057 {
00058     // turn off LEDs
00059     red_led = 1.0;
00060     green_led = 1.0;
00061     blue_led = 1.0;
00062     
00063     // turn off 7-seg display
00064     shift.write(0x00);
00065 
00066     // initialise LCD
00067     lcd.init();
00068 
00069     // PCB has external pull-down resistors so turn the internal ones off
00070     button_a.mode(PullNone);
00071     button_b.mode(PullNone);
00072     button_c.mode(PullNone);
00073     button_d.mode(PullNone);
00074 }
00075 
00076 void print_menu()
00077 {
00078     lcd.clear();
00079     lcd.printString("Press button",0,0);
00080     lcd.printString("to select",0,1);
00081     lcd.printString("A: Mode A",0,2);
00082     lcd.printString("B: Mode B",0,3);
00083     lcd.printString("C: Mode C",0,4);
00084     lcd.printString("D: Mode D",0,5);
00085     lcd.refresh();
00086 }
00087 
00088 void welcome()
00089 {
00090     lcd.clear();
00091     lcd.printString("  Automotive",0,0);
00092     lcd.printString("  Electronics",0,1);
00093     lcd.printString("   Simulator",0,2);
00094     lcd.printString("Craig A. Evans",0,4);
00095     lcd.printString("  0123456789",0,5);
00096     lcd.refresh();
00097     wait(5.0);
00098 }