hardware.cpp

00001 // This header has all the (extern) declarations of the globals.
00002 // "extern" means "this is instantiated somewhere, but here's what the name
00003 // means.
00004 #include "globals.h"
00005 
00006 #include "hardware.h"
00007 
00008 // We need to actually instantiate all of the globals (i.e. declare them once
00009 // without the extern keyword). That's what this file does!
00010 
00011 // Hardware initialization: Instantiate all the things!
00012 uLCD_4DGL uLCD(p9,p10,p11);             // LCD Screen (tx, rx, reset)
00013 //SDFileSystem sd(p5, p6, p7, p8, "sd");  // SD Card(mosi, miso, sck, cs)
00014 Serial pc(USBTX,USBRX);                 // USB Console (tx, rx)
00015 MMA8452 acc(p28, p27, 100000);        // Accelerometer (sda, sdc, rate)
00016 DigitalIn button1(p21);                 // Pushbuttons (pin)
00017 DigitalIn button2(p22);
00018 DigitalIn button3(p23);
00019 DigitalIn button4(p24);
00020 AnalogOut DACout(p18);                  // Speaker (pin)
00021 PwmOut speaker(p26);
00022 wave_player waver(&DACout);
00023 
00024 // Some hardware also needs to have functions called before it will set up
00025 // properly. Do that here.
00026 int hardware_init()
00027 {
00028     // Crank up the speed
00029     uLCD.baudrate(3000000);
00030     pc.baud(115200);
00031         
00032     //Initialize pushbuttons
00033     button1.mode(PullUp); 
00034     button2.mode(PullUp);
00035     button3.mode(PullUp);
00036     button3.mode(PullUp);
00037     acc.activate();
00038     return ERROR_NONE;
00039 }
00040 
00041 GameInputs read_inputs() 
00042 {
00043     GameInputs in;
00044     
00045     in.b1 = button1; // top button
00046     in.b2 = button2; // second button 
00047     in.b3 = button3; // third button
00048     in.b4 = button4; // fourth, run button
00049     acc.readXGravity(&in.ax); // x axis acce
00050     acc.readYGravity(&in.ay); // y axis acce
00051     acc.readZGravity(&in.az); // z axis acce
00052     return in;
00053 }