SNAKE GAME
Dependencies: mbed wave_player 4DGL-uLCD-SE MMA8452
hardware.cpp@0:24041b847eb5, 2020-11-25 (annotated)
- Committer:
- congvu
- Date:
- Wed Nov 25 04:25:25 2020 +0000
- Revision:
- 0:24041b847eb5
ECE2035 SNAKE GAME;
Who changed what in which revision?
User | Revision | Line number | New contents of line |
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congvu | 0:24041b847eb5 | 1 | // Copyright 2020 Georgia Tech. All rights reserved. |
congvu | 0:24041b847eb5 | 2 | // The materials provided by the instructor in this course are for |
congvu | 0:24041b847eb5 | 3 | // the use of the students currently enrolled in the course. |
congvu | 0:24041b847eb5 | 4 | // Copyrighted course materials may not be further disseminated. |
congvu | 0:24041b847eb5 | 5 | // This file must not be made publicly available anywhere. |
congvu | 0:24041b847eb5 | 6 | |
congvu | 0:24041b847eb5 | 7 | // This header has all the (extern) declarations of the globals. |
congvu | 0:24041b847eb5 | 8 | // "extern" means "this is instantiated somewhere, but here's what the name |
congvu | 0:24041b847eb5 | 9 | // means. |
congvu | 0:24041b847eb5 | 10 | #include "globals.h" |
congvu | 0:24041b847eb5 | 11 | |
congvu | 0:24041b847eb5 | 12 | #include "hardware.h" |
congvu | 0:24041b847eb5 | 13 | #include "Speaker.h" |
congvu | 0:24041b847eb5 | 14 | // We need to actually instantiate all of the globals (i.e. declare them once |
congvu | 0:24041b847eb5 | 15 | // without the extern keyword). That's what this file does! |
congvu | 0:24041b847eb5 | 16 | |
congvu | 0:24041b847eb5 | 17 | // Hardware initialization: Instantiate all the things! |
congvu | 0:24041b847eb5 | 18 | uLCD_4DGL uLCD(p9,p10,p11); // LCD Screen (tx, rx, reset) |
congvu | 0:24041b847eb5 | 19 | //SDFileSystem sd(p5, p6, p7, p8, "sd"); // SD Card(mosi, miso, sck, cs) |
congvu | 0:24041b847eb5 | 20 | Serial pc(USBTX,USBRX); // USB Console (tx, rx) |
congvu | 0:24041b847eb5 | 21 | MMA8452 acc(p28, p27, 100000); // Accelerometer (sda, sdc, rate) |
congvu | 0:24041b847eb5 | 22 | DigitalIn button1(p21); // Pushbuttons (pin) |
congvu | 0:24041b847eb5 | 23 | DigitalIn button2(p22); |
congvu | 0:24041b847eb5 | 24 | DigitalIn button3(p23); |
congvu | 0:24041b847eb5 | 25 | AnalogOut DACout(p18); // Speaker (pin) |
congvu | 0:24041b847eb5 | 26 | PwmOut speaker(p26); |
congvu | 0:24041b847eb5 | 27 | wave_player waver(&DACout); |
congvu | 0:24041b847eb5 | 28 | |
congvu | 0:24041b847eb5 | 29 | |
congvu | 0:24041b847eb5 | 30 | // Some hardware also needs to have functions called before it will set up |
congvu | 0:24041b847eb5 | 31 | // properly. Do that here. |
congvu | 0:24041b847eb5 | 32 | |
congvu | 0:24041b847eb5 | 33 | int hardware_init() |
congvu | 0:24041b847eb5 | 34 | { |
congvu | 0:24041b847eb5 | 35 | // Crank up the speed |
congvu | 0:24041b847eb5 | 36 | uLCD.baudrate(3000000); |
congvu | 0:24041b847eb5 | 37 | pc.baud(115200); |
congvu | 0:24041b847eb5 | 38 | |
congvu | 0:24041b847eb5 | 39 | //Initialize pushbuttons |
congvu | 0:24041b847eb5 | 40 | button1.mode(PullUp); |
congvu | 0:24041b847eb5 | 41 | button2.mode(PullUp); |
congvu | 0:24041b847eb5 | 42 | button3.mode(PullUp); |
congvu | 0:24041b847eb5 | 43 | |
congvu | 0:24041b847eb5 | 44 | return ERROR_NONE; |
congvu | 0:24041b847eb5 | 45 | } |
congvu | 0:24041b847eb5 | 46 | |
congvu | 0:24041b847eb5 | 47 | // Implement this function. |
congvu | 0:24041b847eb5 | 48 | // HINT: lookup your accelerometer under mbed site > Hardware> Components |
congvu | 0:24041b847eb5 | 49 | // and look at demo code |
congvu | 0:24041b847eb5 | 50 | GameInputs read_inputs() |
congvu | 0:24041b847eb5 | 51 | { |
congvu | 0:24041b847eb5 | 52 | GameInputs in; |
congvu | 0:24041b847eb5 | 53 | |
congvu | 0:24041b847eb5 | 54 | // Read the values and store them in in |
congvu | 0:24041b847eb5 | 55 | //tilting board left = -x |
congvu | 0:24041b847eb5 | 56 | //tilting board down towards table = +y |
congvu | 0:24041b847eb5 | 57 | |
congvu | 0:24041b847eb5 | 58 | in.b1 = button3; //top button on breadboard is connected to p23 |
congvu | 0:24041b847eb5 | 59 | in.b2 = button2; //middle button on breadboard is connected to p22 |
congvu | 0:24041b847eb5 | 60 | in.b3 = button1; //bottom button ob breadboard is connected to p21 |
congvu | 0:24041b847eb5 | 61 | |
congvu | 0:24041b847eb5 | 62 | acc.readXGravity(&in.ax); |
congvu | 0:24041b847eb5 | 63 | acc.readYGravity(&in.ay); |
congvu | 0:24041b847eb5 | 64 | acc.readZGravity(&in.az); |
congvu | 0:24041b847eb5 | 65 | |
congvu | 0:24041b847eb5 | 66 | //pc.printf("xAccel: %f yAccel: %f zAccel: %f\n",in.ax,in.ay,in.az); |
congvu | 0:24041b847eb5 | 67 | return in; |
congvu | 0:24041b847eb5 | 68 | } |
congvu | 0:24041b847eb5 | 69 |