Konstantinos Fane / Mbed 2 deprecated mbed_PWM_workshop

Finished all tasks of the workshop, just need to do the final task where the main decided which functions to run

Dependencies:   mbed C12832

main.cpp@0:6d566e6d9aa7, 2020-11-17 (annotated)

Committer:
kwstasfane1
Date:
Tue Nov 17 15:26:43 2020 +0000
Revision:
0:6d566e6d9aa7
Finished all tasks, all i really need to do is to put them together 6.Task4)

Who changed what in which revision?

UserRevisionLine numberNew contents of line
kwstasfane1 0:6d566e6d9aa7 1 #include "mbed.h"
kwstasfane1 0:6d566e6d9aa7 2
kwstasfane1 0:6d566e6d9aa7 3 #include "C12832.h" //LCD display library
kwstasfane1 0:6d566e6d9aa7 4
kwstasfane1 0:6d566e6d9aa7 5 Serial pc(USBTX,USBRX); //serial port to communicate with pc
kwstasfane1 0:6d566e6d9aa7 6 //PwmOut PWM1(p21); //used for the pwm setup
kwstasfane1 0:6d566e6d9aa7 7 //PwmOut led (LED1);
kwstasfane1 0:6d566e6d9aa7 8
kwstasfane1 0:6d566e6d9aa7 9 //task5 testing and orages song
kwstasfane1 0:6d566e6d9aa7 10 DigitalIn fire(p14);
kwstasfane1 0:6d566e6d9aa7 11 PwmOut spkr(p26); //pwm directed to pin26 speaker
kwstasfane1 0:6d566e6d9aa7 12
kwstasfane1 0:6d566e6d9aa7 13
kwstasfane1 0:6d566e6d9aa7 14 //extra song, Star WARS
kwstasfane1 0:6d566e6d9aa7 15 float frequency [] = {175,175,175,233,349,311,294,523,932,698,622,587,523,932,698,622,587,622,523};
kwstasfane1 0:6d566e6d9aa7 16 float beat [] = {21,21,21,128,64,21,21,21,128,64,21,21,21,128,64,21,21,21,128};
kwstasfane1 0:6d566e6d9aa7 17 int length = sizeof(beat)/sizeof(beat[0]); //to get the length of the array //not use it in a main()
kwstasfane1 0:6d566e6d9aa7 18
kwstasfane1 0:6d566e6d9aa7 19 //oranges and lemons song
kwstasfane1 0:6d566e6d9aa7 20 //float frequency [] = {659, 554, 659, 554, 550, 494, 554, 587, 494, 659, 554, 440}; //frequency array
kwstasfane1 0:6d566e6d9aa7 21 //float beat[] = {1, 1, 1, 1, 1, 0.5, 0.5, 1, 1, 1, 1, 2}; //beat array
kwstasfane1 0:6d566e6d9aa7 22
kwstasfane1 0:6d566e6d9aa7 23 C12832 lcd(p5, p7, p6, p8, p11); //define lcd pins
kwstasfane1 0:6d566e6d9aa7 24
kwstasfane1 0:6d566e6d9aa7 25 char getChar();
kwstasfane1 0:6d566e6d9aa7 26 float getFloat();
kwstasfane1 0:6d566e6d9aa7 27 //void basicPWM();
kwstasfane1 0:6d566e6d9aa7 28 //void ledPwm(float);
kwstasfane1 0:6d566e6d9aa7 29
kwstasfane1 0:6d566e6d9aa7 30
kwstasfane1 0:6d566e6d9aa7 31 int main()
kwstasfane1 0:6d566e6d9aa7 32 {
kwstasfane1 0:6d566e6d9aa7 33 //Task2.1
kwstasfane1 0:6d566e6d9aa7 34 //pc.printf("Workshop 6\n\r"); //the \n\r gives new line and cariage return carriage return
kwstasfane1 0:6d566e6d9aa7 35
kwstasfane1 0:6d566e6d9aa7 36 //Task2.2
kwstasfane1 0:6d566e6d9aa7 37 /*char c; //this holds the data pc sends
kwstasfane1 0:6d566e6d9aa7 38 while(1)
kwstasfane1 0:6d566e6d9aa7 39 {
kwstasfane1 0:6d566e6d9aa7 40 c = pc.getc(); //gets character from input stream
kwstasfane1 0:6d566e6d9aa7 41 lcd.cls();
kwstasfane1 0:6d566e6d9aa7 42 lcd.locate(10,10);
kwstasfane1 0:6d566e6d9aa7 43 lcd.printf("%c", c); //display the character
kwstasfane1 0:6d566e6d9aa7 44 }*/
kwstasfane1 0:6d566e6d9aa7 45
kwstasfane1 0:6d566e6d9aa7 46 //Task2.3
kwstasfane1 0:6d566e6d9aa7 47 /*while(1)
kwstasfane1 0:6d566e6d9aa7 48 {
kwstasfane1 0:6d566e6d9aa7 49 float num = getFloat(); //read the formated data as printf prints it
kwstasfane1 0:6d566e6d9aa7 50 lcd.cls();
kwstasfane1 0:6d566e6d9aa7 51 lcd.locate(10,10);
kwstasfane1 0:6d566e6d9aa7 52 lcd.printf("%4.3f",num); //4.3 decimal accuracy
kwstasfane1 0:6d566e6d9aa7 53 }*/
kwstasfane1 0:6d566e6d9aa7 54 //basicPWM();
kwstasfane1 0:6d566e6d9aa7 55
kwstasfane1 0:6d566e6d9aa7 56 //Task4
kwstasfane1 0:6d566e6d9aa7 57 /*float brightness = 0.0;
kwstasfane1 0:6d566e6d9aa7 58 char c;
kwstasfane1 0:6d566e6d9aa7 59
kwstasfane1 0:6d566e6d9aa7 60 while(1)
kwstasfane1 0:6d566e6d9aa7 61 {
kwstasfane1 0:6d566e6d9aa7 62 pc.printf("Control of LED dimmer by host terminal \n\r");
kwstasfane1 0:6d566e6d9aa7 63 pc.printf("Press 'u'= brighter, 'd'=dimmer\n\r");
kwstasfane1 0:6d566e6d9aa7 64 pc.printf("%c %1.3f \n \r", c, brightness);
kwstasfane1 0:6d566e6d9aa7 65
kwstasfane1 0:6d566e6d9aa7 66 c = pc.getc();
kwstasfane1 0:6d566e6d9aa7 67
kwstasfane1 0:6d566e6d9aa7 68 if(brightness > 0.2) //set 0.2 upper limit
kwstasfane1 0:6d566e6d9aa7 69 {
kwstasfane1 0:6d566e6d9aa7 70 brightness = 0.2;
kwstasfane1 0:6d566e6d9aa7 71 }
kwstasfane1 0:6d566e6d9aa7 72 else if(brightness < 0.0) //set 0.0 lower limit
kwstasfane1 0:6d566e6d9aa7 73 {
kwstasfane1 0:6d566e6d9aa7 74 brightness = 0.0;
kwstasfane1 0:6d566e6d9aa7 75 }
kwstasfane1 0:6d566e6d9aa7 76 else
kwstasfane1 0:6d566e6d9aa7 77 {
kwstasfane1 0:6d566e6d9aa7 78 if(c == 'u')
kwstasfane1 0:6d566e6d9aa7 79 {
kwstasfane1 0:6d566e6d9aa7 80 brightness = brightness + 0.0001; //brightness increase
kwstasfane1 0:6d566e6d9aa7 81 }
kwstasfane1 0:6d566e6d9aa7 82 if(c == 'd')
kwstasfane1 0:6d566e6d9aa7 83 {
kwstasfane1 0:6d566e6d9aa7 84 brightness = brightness - 0.0001; //brightness decrease
kwstasfane1 0:6d566e6d9aa7 85 }
kwstasfane1 0:6d566e6d9aa7 86 }
kwstasfane1 0:6d566e6d9aa7 87
kwstasfane1 0:6d566e6d9aa7 88 ledPwm(brightness);
kwstasfane1 0:6d566e6d9aa7 89
kwstasfane1 0:6d566e6d9aa7 90
kwstasfane1 0:6d566e6d9aa7 91 }*/
kwstasfane1 0:6d566e6d9aa7 92
kwstasfane1 0:6d566e6d9aa7 93 //Task 5, speaker test
kwstasfane1 0:6d566e6d9aa7 94 /*while(1)
kwstasfane1 0:6d566e6d9aa7 95 {
kwstasfane1 0:6d566e6d9aa7 96 for(float i= 2000.0; i<10000.0; i+=100)
kwstasfane1 0:6d566e6d9aa7 97 {
kwstasfane1 0:6d566e6d9aa7 98 spkr.period(1.0/i); //frequency sweep from 2Khz to 10KHz, period=1/f
kwstasfane1 0:6d566e6d9aa7 99 spkr = 0.5; //50% duty cycle
kwstasfane1 0:6d566e6d9aa7 100 wait(0.1);
kwstasfane1 0:6d566e6d9aa7 101 }
kwstasfane1 0:6d566e6d9aa7 102
kwstasfane1 0:6d566e6d9aa7 103 spkr = 0.0; //nute speaker
kwstasfane1 0:6d566e6d9aa7 104 while(!fire){}
kwstasfane1 0:6d566e6d9aa7 105 }*/
kwstasfane1 0:6d566e6d9aa7 106
kwstasfane1 0:6d566e6d9aa7 107 //task5, speaker orange song
kwstasfane1 0:6d566e6d9aa7 108 /*while(1)
kwstasfane1 0:6d566e6d9aa7 109 {
kwstasfane1 0:6d566e6d9aa7 110 for(int i=0; i<= 11; i++)
kwstasfane1 0:6d566e6d9aa7 111 {
kwstasfane1 0:6d566e6d9aa7 112 spkr.period(1.0/frequency[i]); //variable frequency dewpending on song notes
kwstasfane1 0:6d566e6d9aa7 113 spkr = 0.5; //50% duty cycle
kwstasfane1 0:6d566e6d9aa7 114 wait(0.5*beat[i]); //hold for beat period
kwstasfane1 0:6d566e6d9aa7 115 }
kwstasfane1 0:6d566e6d9aa7 116
kwstasfane1 0:6d566e6d9aa7 117 spkr = 0.0; //mute speaker
kwstasfane1 0:6d566e6d9aa7 118 while(!fire){}
kwstasfane1 0:6d566e6d9aa7 119 }*/
kwstasfane1 0:6d566e6d9aa7 120
kwstasfane1 0:6d566e6d9aa7 121
kwstasfane1 0:6d566e6d9aa7 122 while(1)
kwstasfane1 0:6d566e6d9aa7 123 {
kwstasfane1 0:6d566e6d9aa7 124 for(int i=0; i<length; i++)
kwstasfane1 0:6d566e6d9aa7 125 {
kwstasfane1 0:6d566e6d9aa7 126 spkr.period(1.0/frequency[i]); //convert frequency to time and use it as period
kwstasfane1 0:6d566e6d9aa7 127 spkr = 0.5; //50% duty cycle
kwstasfane1 0:6d566e6d9aa7 128 wait(0.5*beat[i]*0.02); //0.02 is used to adjust the speed of the music
kwstasfane1 0:6d566e6d9aa7 129 }
kwstasfane1 0:6d566e6d9aa7 130
kwstasfane1 0:6d566e6d9aa7 131 spkr = 0.0; //mute the speaker
kwstasfane1 0:6d566e6d9aa7 132 while(!fire){}
kwstasfane1 0:6d566e6d9aa7 133 }
kwstasfane1 0:6d566e6d9aa7 134
kwstasfane1 0:6d566e6d9aa7 135 //return 0;
kwstasfane1 0:6d566e6d9aa7 136
kwstasfane1 0:6d566e6d9aa7 137
kwstasfane1 0:6d566e6d9aa7 138 }
kwstasfane1 0:6d566e6d9aa7 139
kwstasfane1 0:6d566e6d9aa7 140 /*void ledPwm(float brightness) //for the led online adjusting
kwstasfane1 0:6d566e6d9aa7 141 {
kwstasfane1 0:6d566e6d9aa7 142 led.period(0.001); //100Hz=T
kwstasfane1 0:6d566e6d9aa7 143 led = brightness;
kwstasfane1 0:6d566e6d9aa7 144 }*/
kwstasfane1 0:6d566e6d9aa7 145
kwstasfane1 0:6d566e6d9aa7 146 /*void basicPWM() //for the PWM online adjusting
kwstasfane1 0:6d566e6d9aa7 147 {
kwstasfane1 0:6d566e6d9aa7 148 //create a PWM signal to see on the osciloscope (Pulse = 100Hz and DT= 50%
kwstasfane1 0:6d566e6d9aa7 149 PWM1.period(getFloat()); //set the PWM period to 10ms, used to configure period remotel as well
kwstasfane1 0:6d566e6d9aa7 150 PWM1 = getFloat(); //set the duty cycle to 50% (from 0.0 to 1.0 0% to 100%)
kwstasfane1 0:6d566e6d9aa7 151 }*/
kwstasfane1 0:6d566e6d9aa7 152
kwstasfane1 0:6d566e6d9aa7 153 float getFloat()
kwstasfane1 0:6d566e6d9aa7 154 {
kwstasfane1 0:6d566e6d9aa7 155 float num;
kwstasfane1 0:6d566e6d9aa7 156 pc.scanf("%f", &num);
kwstasfane1 0:6d566e6d9aa7 157 return (num);
kwstasfane1 0:6d566e6d9aa7 158 }
kwstasfane1 0:6d566e6d9aa7 159
kwstasfane1 0:6d566e6d9aa7 160 char getChar()
kwstasfane1 0:6d566e6d9aa7 161 {
kwstasfane1 0:6d566e6d9aa7 162 char c;
kwstasfane1 0:6d566e6d9aa7 163 pc.getc();
kwstasfane1 0:6d566e6d9aa7 164 return c;
kwstasfane1 0:6d566e6d9aa7 165 }