Sean Nagle / Mbed 2 deprecated Assignment5

Assignment 5 for OCE360, timers, tickers, and interrupts.

Dependencies:   4DGL-uLCD-SE MMA8452Q SDFileSystem bouncing_ball mbed

Fork of OCE360_4 by OCE_360

main.cpp@8:2617100c441d, 2017-11-14 (annotated)

Committer:
rsean10
Date:
Tue Nov 14 14:20:06 2017 +0000
Revision:
8:2617100c441d
Parent:
7:614b40b85579
Child:
9:7a577d790538
2014/11/14 - 09:19 - Functioning Tickers for screen and LCD (50Hz wait time), semi-functioning interrupt (very little code, mostly POC)

Who changed what in which revision?

UserRevisionLine numberNew contents of line
slicht 2:552e6feb8709 1 // A solution to OCE360 Homework #4.
slicht 2:552e6feb8709 2 // Objective: Use object oriented programming to create a system that displays
slicht 2:552e6feb8709 3 // multiple balls bouncing around the LCD screen.
slicht 3:a7f02754bc99 4 // Stephen Licht, 11/7/2017
slicht 1:6b99ffa62cc8 5
slicht 0:8d3812068c6c 6 #include "mbed.h"
slicht 2:552e6feb8709 7 #include "MMA8452Q.h" //acceleromater library
slicht 2:552e6feb8709 8 #include "uLCD_4DGL.h" //LCD library
slicht 2:552e6feb8709 9 #include "bouncing_ball.h" //new ball phyics library
rsean10 8:2617100c441d 10 #include "SDFileSystem.h"
slicht 1:6b99ffa62cc8 11
slicht 2:552e6feb8709 12 #define UPDATE_TIME_S 0.02
slicht 2:552e6feb8709 13 #define START_X_1 10
slicht 2:552e6feb8709 14 #define START_Y_1 10
slicht 2:552e6feb8709 15 #define START_X_2 20
slicht 2:552e6feb8709 16 #define START_Y_2 20
slicht 2:552e6feb8709 17 #define RADIUS_1 6
slicht 2:552e6feb8709 18 #define RADIUS_2 3
slicht 0:8d3812068c6c 19
slicht 2:552e6feb8709 20 #define DEBUG_MODE 0
slicht 2:552e6feb8709 21
rsean10 6:050104c0dc75 22 #define LCD_UPDATE .091 //11 Hz
rsean10 6:050104c0dc75 23 #define DRAW_UPDATE 0.075
rsean10 5:93f88deda5ba 24
rsean10 5:93f88deda5ba 25 //Initialize Serial communication
rsean10 5:93f88deda5ba 26 Serial pc(USBTX, USBRX);
rsean10 5:93f88deda5ba 27
rsean10 8:2617100c441d 28 // SD card (SPI pins)
rsean10 8:2617100c441d 29 SDFileSystem sd(p5, p6, p7, p8, "sd");
rsean10 8:2617100c441d 30
rsean10 6:050104c0dc75 31 //Led Initialization
rsean10 6:050104c0dc75 32 DigitalOut led1(LED1); //update leds
rsean10 6:050104c0dc75 33 DigitalOut led2(LED2);
rsean10 7:614b40b85579 34 DigitalOut led3(LED3);
rsean10 6:050104c0dc75 35
rsean10 7:614b40b85579 36 //Toggle Initialization
rsean10 7:614b40b85579 37 InterruptIn button(p13); //Interrupt on the button on pin 13
rsean10 7:614b40b85579 38 Timer debounce; //defines debounce timer for proper switching
rsean10 7:614b40b85579 39
rsean10 8:2617100c441d 40 int recorder = 0;
rsean10 8:2617100c441d 41
rsean10 7:614b40b85579 42 void toggle(){
rsean10 7:614b40b85579 43 if(debounce.read_ms()>175){
rsean10 7:614b40b85579 44 led3=!led3;
rsean10 8:2617100c441d 45 recorder = !recorder;
rsean10 7:614b40b85579 46 debounce.reset(); //restart timer after toggle occurs
rsean10 7:614b40b85579 47 }
rsean10 7:614b40b85579 48 }
rsean10 6:050104c0dc75 49
rsean10 8:2617100c441d 50 //Position recorder
rsean10 8:2617100c441d 51 Timer logtime;
rsean10 8:2617100c441d 52
rsean10 8:2617100c441d 53
slicht 2:552e6feb8709 54 //Function prototype for color selection function:
slicht 2:552e6feb8709 55 int get_LCD_color(int color_integer);
slicht 1:6b99ffa62cc8 56
slicht 1:6b99ffa62cc8 57 // Graphic LCD - TX, RX, and RES pins
slicht 2:552e6feb8709 58 uLCD_4DGL uLCD(p9,p10,p11); //initialize a driver object for an LCD connected on pins 9-11
slicht 1:6b99ffa62cc8 59
slicht 1:6b99ffa62cc8 60 // Accelerometer - SDA, SCL, and I2C address
slicht 2:552e6feb8709 61 MMA8452Q accel(p28, p27, 0x1D); //initialize a driver object for an accelerometer connected on pins 27-28.
slicht 1:6b99ffa62cc8 62
slicht 2:552e6feb8709 63 physics_ball ball1; //initialize two balls for bouncing
slicht 2:552e6feb8709 64 physics_ball ball2; //the default states from the library will be used initially
slicht 0:8d3812068c6c 65
rsean10 6:050104c0dc75 66 //Ticker for update
rsean10 6:050104c0dc75 67 Ticker update1; //ball 1 ticker for update position
rsean10 6:050104c0dc75 68 Ticker update2; //ball 2 ticker for update position
rsean10 6:050104c0dc75 69
rsean10 6:050104c0dc75 70 void ball1up(){
rsean10 6:050104c0dc75 71 ball1.update(UPDATE_TIME_S,accel); //updates position
rsean10 6:050104c0dc75 72 led1 = !led1; //changes led state every update
rsean10 6:050104c0dc75 73 }
rsean10 6:050104c0dc75 74
rsean10 6:050104c0dc75 75 void ball2up(){
rsean10 6:050104c0dc75 76 ball2.update(UPDATE_TIME_S,accel); //updates position
rsean10 6:050104c0dc75 77 led2 = !led2; //changes led state every update
rsean10 6:050104c0dc75 78 }
rsean10 6:050104c0dc75 79
rsean10 6:050104c0dc75 80 //Ticker for display
rsean10 6:050104c0dc75 81 Ticker displayup; //ticker for displaying ball on lcd
rsean10 6:050104c0dc75 82
rsean10 6:050104c0dc75 83 void display(){
rsean10 6:050104c0dc75 84 // Draw circles in the x and y positions stored by the ball objects:
rsean10 6:050104c0dc75 85 uLCD.filled_circle(ball1.posx, ball1.posy, ball1.radius, get_LCD_color(ball1.color));
rsean10 6:050104c0dc75 86 uLCD.filled_circle(ball2.posx, ball2.posy, ball2.radius, get_LCD_color(ball2.color));
rsean10 6:050104c0dc75 87
rsean10 6:050104c0dc75 88 // Wait before erasing old circles:
rsean10 8:2617100c441d 89 wait(UPDATE_TIME_S); // In seconds
rsean10 6:050104c0dc75 90
rsean10 6:050104c0dc75 91 // Erase old circles by writing over there locations using the screen color:
rsean10 6:050104c0dc75 92 uLCD.filled_circle(ball1.posx, ball1.posy, ball1.radius, BLACK);
rsean10 6:050104c0dc75 93 uLCD.filled_circle(ball2.posx, ball2.posy, ball2.radius, BLACK);
rsean10 5:93f88deda5ba 94 }
rsean10 5:93f88deda5ba 95
rsean10 5:93f88deda5ba 96 int main(){
rsean10 7:614b40b85579 97
rsean10 5:93f88deda5ba 98 /*
rsean10 7:614b40b85579 99 logger1.attach(&pos_log1, LCD_UPDATE);
rsean10 7:614b40b85579 100 logger2.attach(&pos_log2, LCD_UPDATE);
rsean10 5:93f88deda5ba 101 */
rsean10 7:614b40b85579 102
slicht 1:6b99ffa62cc8 103 // Initialize uLCD
slicht 1:6b99ffa62cc8 104 uLCD.baudrate(115200);
slicht 1:6b99ffa62cc8 105 uLCD.background_color(BLACK);
slicht 1:6b99ffa62cc8 106 uLCD.cls();
rsean10 8:2617100c441d 107
slicht 1:6b99ffa62cc8 108 // Initialize accelerometer
slicht 1:6b99ffa62cc8 109 accel.init();
slicht 1:6b99ffa62cc8 110
slicht 2:552e6feb8709 111 //Initialize balls:
slicht 2:552e6feb8709 112 ball1.set_state(START_X_1,START_Y_1,0,0); //speeds are set to zero
slicht 2:552e6feb8709 113 ball1.set_state(START_X_2,START_Y_2,0,0);
slicht 2:552e6feb8709 114
slicht 2:552e6feb8709 115 //Set ball radius and color:
slicht 2:552e6feb8709 116 ball1.set_param(RADIUS_1,0); //color is unimportant
slicht 2:552e6feb8709 117 ball2.set_param(RADIUS_2,1); //just making sure the colors are different
slicht 2:552e6feb8709 118
rsean10 6:050104c0dc75 119 update1.attach(&ball1up,UPDATE_TIME_S); //ticker force position update ball 1
rsean10 6:050104c0dc75 120 update2.attach(&ball2up,UPDATE_TIME_S); //ticker force position update ball 2
rsean10 6:050104c0dc75 121
rsean10 6:050104c0dc75 122 displayup.attach(&display,LCD_UPDATE); //ticker force lcd update
rsean10 6:050104c0dc75 123
rsean10 8:2617100c441d 124 debounce.start(); //starts debounce timer
rsean10 8:2617100c441d 125 button.rise(&toggle); //toggles on button press
rsean10 8:2617100c441d 126
rsean10 8:2617100c441d 127
slicht 2:552e6feb8709 128 while (1) { //execute 'forever'
rsean10 6:050104c0dc75 129
slicht 2:552e6feb8709 130 if (DEBUG_MODE) {
slicht 3:a7f02754bc99 131 //If compiled with DEBUG_MODE flag raised, print values to screen.
slicht 2:552e6feb8709 132 uLCD.locate(0,4);
slicht 2:552e6feb8709 133 uLCD.printf("X: %d.1\nY: %.1d",ball1.posx,ball1.posy);
slicht 2:552e6feb8709 134
slicht 2:552e6feb8709 135 uLCD.locate(0,6);
slicht 2:552e6feb8709 136 uLCD.printf("VX: %f.1\nVY: %.1f",ball1.speedx,ball1.speedy);
slicht 1:6b99ffa62cc8 137
slicht 2:552e6feb8709 138 uLCD.locate(0,10);
slicht 2:552e6feb8709 139 uLCD.printf("AX: %f.1\nAY: %.1f\nAZ: %0.1f",accel.readX(),accel.readY(),accel.readZ());
slicht 2:552e6feb8709 140 }
slicht 2:552e6feb8709 141 }
slicht 2:552e6feb8709 142 }
slicht 1:6b99ffa62cc8 143
slicht 3:a7f02754bc99 144 //Interpret LCD colors.
slicht 2:552e6feb8709 145 int get_LCD_color(int color_integer)
slicht 2:552e6feb8709 146 {
slicht 2:552e6feb8709 147 switch (color_integer) {
slicht 2:552e6feb8709 148 case 0:
slicht 2:552e6feb8709 149 return(RED);
slicht 2:552e6feb8709 150 case 1:
slicht 2:552e6feb8709 151 return(BLUE);
slicht 2:552e6feb8709 152 case 2:
slicht 2:552e6feb8709 153 return(GREEN);
slicht 2:552e6feb8709 154 default:
slicht 2:552e6feb8709 155 return(WHITE);
slicht 0:8d3812068c6c 156 }
slicht 1:6b99ffa62cc8 157 }