Yu Jun Qin / Mbed 2 deprecated ECE_4180_Final

ECE 4180 Final

Dependencies:   mbed wave_player mbed-rtos C12832_lcd 4DGL-uLCD-SE LCD_fonts SDFileSystem

main.cpp@2:765774781bb1, 2019-12-03 (annotated)

Committer:
yqin70
Date:
Tue Dec 03 22:57:12 2019 +0000
Revision:
2:765774781bb1
Parent:
1:a1aa9a79070a 
v3

Who changed what in which revision?

UserRevisionLine numberNew contents of line
yqin70 0:4f77ae831ee7 1 #include "mbed.h"
yqin70 0:4f77ae831ee7 2 #include "SDFileSystem.h"
yqin70 0:4f77ae831ee7 3 #include "wave_player.h"
yqin70 0:4f77ae831ee7 4 #include "uLCD_4DGL.h"
yqin70 0:4f77ae831ee7 5 //setup some color objects in flash using const's
yqin70 0:4f77ae831ee7 6
yqin70 0:4f77ae831ee7 7 #include "rtos.h"
yqin70 0:4f77ae831ee7 8 #include "Small_6.h"
yqin70 0:4f77ae831ee7 9 #include "Small_7.h"
yqin70 0:4f77ae831ee7 10 #include "Arial_9.h"
yqin70 0:4f77ae831ee7 11 #include "stdio.h"
yqin70 0:4f77ae831ee7 12 #include "C12832_lcd.h"
yqin70 0:4f77ae831ee7 13
yqin70 0:4f77ae831ee7 14 //class for 3 PWM color values for RGBLED
yqin70 0:4f77ae831ee7 15 class LEDColor
yqin70 0:4f77ae831ee7 16 {
yqin70 0:4f77ae831ee7 17 public:
yqin70 0:4f77ae831ee7 18 LEDColor(float r, float g, float b);
yqin70 0:4f77ae831ee7 19 float red;
yqin70 0:4f77ae831ee7 20 float green;
yqin70 0:4f77ae831ee7 21 float blue;
yqin70 0:4f77ae831ee7 22 };
yqin70 0:4f77ae831ee7 23 LEDColor:: LEDColor(float r, float g, float b)
yqin70 0:4f77ae831ee7 24 : red(r), green(g), blue(b)
yqin70 0:4f77ae831ee7 25 {
yqin70 0:4f77ae831ee7 26 }
yqin70 0:4f77ae831ee7 27 //Operator overload to adjust brightness with no color change
yqin70 0:4f77ae831ee7 28 LEDColor operator * (const LEDColor& x, const float& b)
yqin70 0:4f77ae831ee7 29 {
yqin70 0:4f77ae831ee7 30 return LEDColor(x.red*b,x.green*b,x.blue*b);
yqin70 0:4f77ae831ee7 31 }
yqin70 0:4f77ae831ee7 32 //Operator overload to add colors
yqin70 0:4f77ae831ee7 33 LEDColor operator + (const LEDColor& x, const LEDColor& y)
yqin70 0:4f77ae831ee7 34 {
yqin70 0:4f77ae831ee7 35 return LEDColor(x.red+y.red,x.green+y.green,x.blue+y.blue);
yqin70 0:4f77ae831ee7 36 }
yqin70 0:4f77ae831ee7 37
yqin70 0:4f77ae831ee7 38 //Class to control an RGB LED using three PWM pins
yqin70 0:4f77ae831ee7 39 class RGBLed
yqin70 0:4f77ae831ee7 40 {
yqin70 0:4f77ae831ee7 41 public:
yqin70 0:4f77ae831ee7 42 RGBLed(PinName redpin, PinName greenpin, PinName bluepin);
yqin70 0:4f77ae831ee7 43 void write(float red,float green, float blue);
yqin70 0:4f77ae831ee7 44 void write(LEDColor c);
yqin70 0:4f77ae831ee7 45 RGBLed operator = (LEDColor c) {
yqin70 0:4f77ae831ee7 46 write(c);
yqin70 0:4f77ae831ee7 47 return *this;
yqin70 0:4f77ae831ee7 48 };
yqin70 0:4f77ae831ee7 49 private:
yqin70 0:4f77ae831ee7 50 PwmOut _redpin;
yqin70 0:4f77ae831ee7 51 PwmOut _greenpin;
yqin70 0:4f77ae831ee7 52 PwmOut _bluepin;
yqin70 0:4f77ae831ee7 53 };
yqin70 0:4f77ae831ee7 54
yqin70 0:4f77ae831ee7 55 RGBLed::RGBLed (PinName redpin, PinName greenpin, PinName bluepin)
yqin70 0:4f77ae831ee7 56 : _redpin(redpin), _greenpin(greenpin), _bluepin(bluepin)
yqin70 0:4f77ae831ee7 57 {
yqin70 0:4f77ae831ee7 58 //50Hz PWM clock default a bit too low, go to 2000Hz (less flicker)
yqin70 0:4f77ae831ee7 59 _redpin.period(0.0005);
yqin70 0:4f77ae831ee7 60 }
yqin70 0:4f77ae831ee7 61
yqin70 0:4f77ae831ee7 62 void RGBLed::write(float red,float green, float blue)
yqin70 0:4f77ae831ee7 63 {
yqin70 0:4f77ae831ee7 64 _redpin = red;
yqin70 0:4f77ae831ee7 65 _greenpin = green;
yqin70 0:4f77ae831ee7 66 _bluepin = blue;
yqin70 0:4f77ae831ee7 67 }
yqin70 0:4f77ae831ee7 68 void RGBLed::write(LEDColor c)
yqin70 0:4f77ae831ee7 69 {
yqin70 0:4f77ae831ee7 70 _redpin = c.red;
yqin70 0:4f77ae831ee7 71 _greenpin = c.green;
yqin70 0:4f77ae831ee7 72 _bluepin = c.blue;
yqin70 0:4f77ae831ee7 73 }
yqin70 0:4f77ae831ee7 74
yqin70 0:4f77ae831ee7 75 //classes could be moved to include file
yqin70 0:4f77ae831ee7 76
yqin70 0:4f77ae831ee7 77 //Setup RGB led using PWM pins and class
yqin70 0:4f77ae831ee7 78 RGBLed myRGBled(p23,p22,p21); //RGB PWM pins
yqin70 0:4f77ae831ee7 79 const LEDColor red(1.0,0.0,0.0);
yqin70 0:4f77ae831ee7 80 const LEDColor green(0.0,0.2,0.0);
yqin70 0:4f77ae831ee7 81 //brighter green LED is scaled down to same as red and
yqin70 0:4f77ae831ee7 82 //blue LED outputs on Sparkfun RGBLED
yqin70 0:4f77ae831ee7 83 const LEDColor blue(0.0,0.0,1.0);
yqin70 0:4f77ae831ee7 84 const LEDColor yellow(1.0,0.2,0.0);
yqin70 0:4f77ae831ee7 85 const LEDColor white(1.0,0.2,1.0);
yqin70 0:4f77ae831ee7 86 const LEDColor black(0.0,0.0,0.0);
yqin70 0:4f77ae831ee7 87 char bred=0;
yqin70 0:4f77ae831ee7 88 char bgreen=0;
yqin70 0:4f77ae831ee7 89 char bblue=0;
yqin70 0:4f77ae831ee7 90
yqin70 0:4f77ae831ee7 91 volatile bool songselect = false;
yqin70 0:4f77ae831ee7 92 volatile bool homescreen = true;
yqin70 0:4f77ae831ee7 93 uLCD_4DGL uLCD(p28,p27,p30);
yqin70 0:4f77ae831ee7 94 SDFileSystem sd(p5, p6, p7, p8, "sd"); //SD card
yqin70 0:4f77ae831ee7 95 DigitalOut myled(LED1);
yqin70 0:4f77ae831ee7 96 DigitalIn pb1(p20);
yqin70 0:4f77ae831ee7 97 DigitalIn pb2(p19);
yqin70 1:a1aa9a79070a 98 AnalogOut DACout(p18);
yqin70 1:a1aa9a79070a 99 wave_player waver(&DACout);
yqin70 0:4f77ae831ee7 100
yqin70 0:4f77ae831ee7 101 // mutex to make the lcd lib thread safe
yqin70 0:4f77ae831ee7 102 Mutex lcd_mutex;
yqin70 0:4f77ae831ee7 103 int songnum = 1;
yqin70 0:4f77ae831ee7 104 AnalogIn joy_pot(p16);
yqin70 0:4f77ae831ee7 105 // Thread 1
yqin70 1:a1aa9a79070a 106 // print homescreen to LCD
yqin70 0:4f77ae831ee7 107 void thread1(void const *args)
yqin70 0:4f77ae831ee7 108 {
yqin70 0:4f77ae831ee7 109
yqin70 0:4f77ae831ee7 110 while(true) { // thread loop
yqin70 0:4f77ae831ee7 111
yqin70 0:4f77ae831ee7 112 if (homescreen){
yqin70 0:4f77ae831ee7 113 lcd_mutex.lock();
yqin70 0:4f77ae831ee7 114 uLCD.cls();
yqin70 2:765774781bb1 115 uLCD.text_height(1.9);
yqin70 2:765774781bb1 116 uLCD.text_width(1.9);
yqin70 0:4f77ae831ee7 117 uLCD.color(WHITE);
yqin70 0:4f77ae831ee7 118 uLCD.locate(0,0);
yqin70 0:4f77ae831ee7 119 uLCD.printf("Pick a song");
yqin70 2:765774781bb1 120 uLCD.text_height(1.9);
yqin70 2:765774781bb1 121 uLCD.text_width(1.9);
yqin70 0:4f77ae831ee7 122 uLCD.locate(1,2);
yqin70 0:4f77ae831ee7 123 uLCD.printf("Song1");
yqin70 0:4f77ae831ee7 124 uLCD.locate(1,4);
yqin70 0:4f77ae831ee7 125 uLCD.printf("Song2");
yqin70 0:4f77ae831ee7 126 uLCD.locate(1,6);
yqin70 0:4f77ae831ee7 127 uLCD.printf("Song3");
yqin70 2:765774781bb1 128 uLCD.locate(1,8);
yqin70 2:765774781bb1 129 uLCD.printf("Song4");
yqin70 2:765774781bb1 130 uLCD.rectangle(5, songnum*16-2, 100, songnum*16+8 ,GREEN);
yqin70 0:4f77ae831ee7 131 lcd_mutex.unlock();
yqin70 1:a1aa9a79070a 132
yqin70 0:4f77ae831ee7 133 }
yqin70 0:4f77ae831ee7 134 Thread::wait(200);
yqin70 0:4f77ae831ee7 135 }
yqin70 0:4f77ae831ee7 136 }
yqin70 0:4f77ae831ee7 137
yqin70 1:a1aa9a79070a 138 //for song selection during homescreen
yqin70 0:4f77ae831ee7 139 void thread2(void const *args)
yqin70 0:4f77ae831ee7 140 {
yqin70 0:4f77ae831ee7 141
yqin70 0:4f77ae831ee7 142 while(1){
yqin70 1:a1aa9a79070a 143 if (homescreen){
yqin70 0:4f77ae831ee7 144 if ((joy_pot <= (1.4/3.3)) && songnum>1) {
yqin70 0:4f77ae831ee7 145 songnum--;
yqin70 0:4f77ae831ee7 146 }
yqin70 2:765774781bb1 147 else if ((joy_pot >= (1.8/3.3)) && songnum<4){
yqin70 0:4f77ae831ee7 148 songnum++;
yqin70 0:4f77ae831ee7 149 }
yqin70 1:a1aa9a79070a 150 }
yqin70 0:4f77ae831ee7 151 Thread::wait(250);
yqin70 0:4f77ae831ee7 152
yqin70 0:4f77ae831ee7 153 }
yqin70 0:4f77ae831ee7 154 }
yqin70 0:4f77ae831ee7 155
yqin70 0:4f77ae831ee7 156 // Thread 3
yqin70 1:a1aa9a79070a 157 //pb1 is to select song
yqin70 1:a1aa9a79070a 158 //pb2 is to return to homescreen
yqin70 0:4f77ae831ee7 159 void thread3(void const *args)
yqin70 0:4f77ae831ee7 160 {
yqin70 0:4f77ae831ee7 161 pb1.mode(PullUp);
yqin70 0:4f77ae831ee7 162 pb2.mode(PullUp);
yqin70 0:4f77ae831ee7 163 while(true) { // thread loop
yqin70 0:4f77ae831ee7 164 if (!pb2)
yqin70 0:4f77ae831ee7 165 {
yqin70 0:4f77ae831ee7 166 homescreen = true;
yqin70 0:4f77ae831ee7 167 songselect = false;
yqin70 0:4f77ae831ee7 168 }
yqin70 0:4f77ae831ee7 169 if (!pb1)
yqin70 0:4f77ae831ee7 170 {
yqin70 0:4f77ae831ee7 171 songselect = true;
yqin70 0:4f77ae831ee7 172 }
yqin70 0:4f77ae831ee7 173 Thread::wait(100); // value of pot1 / 100
yqin70 0:4f77ae831ee7 174 }
yqin70 0:4f77ae831ee7 175 }
yqin70 0:4f77ae831ee7 176
yqin70 0:4f77ae831ee7 177 int main()
yqin70 0:4f77ae831ee7 178 {
yqin70 1:a1aa9a79070a 179 //doesnt work yet, need to ask hamblen
yqin70 1:a1aa9a79070a 180
yqin70 0:4f77ae831ee7 181 uLCD.media_init();
yqin70 0:4f77ae831ee7 182 uLCD.set_sector_address(0x001D, 0x4C01);
yqin70 0:4f77ae831ee7 183 uLCD.display_image(0,0);
yqin70 0:4f77ae831ee7 184 // t1.start(thread1);
yqin70 0:4f77ae831ee7 185 // t2.start(thread2);
yqin70 0:4f77ae831ee7 186 // t3.start(thread3);
yqin70 0:4f77ae831ee7 187 Thread t1(thread1);
yqin70 0:4f77ae831ee7 188 Thread t2(thread2);
yqin70 0:4f77ae831ee7 189 Thread t3(thread3);
yqin70 1:a1aa9a79070a 190 //startup sound. Commented out for testing without SD card
yqin70 1:a1aa9a79070a 191 //FILE *wave_file;
yqin70 1:a1aa9a79070a 192 //wave_file=fopen("/sd/cheer.wav","r");
yqin70 1:a1aa9a79070a 193 //waver.play(wave_file);
yqin70 1:a1aa9a79070a 194 //fclose(wave_file);
yqin70 0:4f77ae831ee7 195 while(1)
yqin70 0:4f77ae831ee7 196 {
yqin70 0:4f77ae831ee7 197
yqin70 1:a1aa9a79070a 198 if (songselect){
yqin70 1:a1aa9a79070a 199 myled = 0;
yqin70 1:a1aa9a79070a 200 homescreen = false;
yqin70 1:a1aa9a79070a 201 lcd_mutex.lock();
yqin70 1:a1aa9a79070a 202 uLCD.cls();
yqin70 1:a1aa9a79070a 203 uLCD.printf("You selected song %2d",songnum);
yqin70 1:a1aa9a79070a 204 lcd_mutex.unlock();
yqin70 1:a1aa9a79070a 205 //add case statement based on songnum or something
yqin70 1:a1aa9a79070a 206 //code for playing song from sd
yqin70 1:a1aa9a79070a 207 //FILE *wave_file;
yqin70 1:a1aa9a79070a 208 //wave_file=fopen("/sd/sample1.wav","r");
yqin70 1:a1aa9a79070a 209 //waver.play(wave_file);
yqin70 1:a1aa9a79070a 210 //fclose(wave_file);
yqin70 1:a1aa9a79070a 211 //end
yqin70 1:a1aa9a79070a 212 }
yqin70 0:4f77ae831ee7 213 Thread::wait(100);
yqin70 0:4f77ae831ee7 214 }
yqin70 0:4f77ae831ee7 215 }
yqin70 0:4f77ae831ee7 216
yqin70 0:4f77ae831ee7 217