Luke Cartwright / Mbed 2 deprecated ELEC2645_Project_el18loc_nearlythere

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Dependencies:   mbed

main.cpp@7:33cb5f2db1ee, 2020-05-05 (annotated)

Committer:
lukeocarwright
Date:
Tue May 05 14:32:04 2020 +0000
Revision:
7:33cb5f2db1ee
Parent:
6:3a4e9ce12911
Child:
8:f305ea78b2b1
Added initial GUI for front and sorted menu bug

Who changed what in which revision?

UserRevisionLine numberNew contents of line
lukeocarwright 2:07cef563acdf 1 /*
eencae 0:b7f1f47bb26a 2 ELEC2645 Embedded Systems Project
eencae 0:b7f1f47bb26a 3 School of Electronic & Electrical Engineering
eencae 0:b7f1f47bb26a 4 University of Leeds
eencae 0:b7f1f47bb26a 5 2019/20
eencae 0:b7f1f47bb26a 6
lukeocarwright 1:766a293c9b07 7 Name: Luke Cartwright
lukeocarwright 1:766a293c9b07 8 Username: el18loc
lukeocarwright 1:766a293c9b07 9 Student ID Number: 201225242
lukeocarwright 2:07cef563acdf 10 Start Date: 06/02/2020
lukeocarwright 7:33cb5f2db1ee 11 Last Edited: 04/05/2020
eencae 0:b7f1f47bb26a 12 */
eencae 0:b7f1f47bb26a 13
lukeocarwright 5:e785b9cd58c9 14 /* TO DO:
lukeocarwright 5:e785b9cd58c9 15 LEDS INSTALL
lukeocarwright 6:3a4e9ce12911 16 pass variables between functions using pointers
lukeocarwright 7:33cb5f2db1ee 17 Settings tab
lukeocarwright 7:33cb5f2db1ee 18 Other wavetables
lukeocarwright 7:33cb5f2db1ee 19 Generate sound
lukeocarwright 7:33cb5f2db1ee 20 ADSR
lukeocarwright 7:33cb5f2db1ee 21 Startup.h
lukeocarwright 5:e785b9cd58c9 22
lukeocarwright 5:e785b9cd58c9 23 */
lukeocarwright 2:07cef563acdf 24 // Includes
eencae 0:b7f1f47bb26a 25 #include "mbed.h"
eencae 0:b7f1f47bb26a 26 #include "Gamepad.h"
eencae 0:b7f1f47bb26a 27 #include "N5110.h"
lukeocarwright 6:3a4e9ce12911 28 #include "menu.h"
lukeocarwright 7:33cb5f2db1ee 29 #include "startup.h"
lukeocarwright 7:33cb5f2db1ee 30 #include "Front.h"
eencae 0:b7f1f47bb26a 31
lukeocarwright 2:07cef563acdf 32 // Objects
eencae 0:b7f1f47bb26a 33 Gamepad pad;
eencae 0:b7f1f47bb26a 34 N5110 lcd;
lukeocarwright 6:3a4e9ce12911 35 menu menu;
lukeocarwright 7:33cb5f2db1ee 36 startup start;
lukeocarwright 7:33cb5f2db1ee 37 //Front front;
lukeocarwright 4:9b7ea5528a5c 38 Ticker down;
lukeocarwright 4:9b7ea5528a5c 39 Ticker period;
lukeocarwright 4:9b7ea5528a5c 40
lukeocarwright 4:9b7ea5528a5c 41 DigitalOut rca(PTC4);
lukeocarwright 2:07cef563acdf 42
lukeocarwright 2:07cef563acdf 43 Serial pc(USBTX, USBRX);
lukeocarwright 2:07cef563acdf 44
lukeocarwright 2:07cef563acdf 45 //Functions
lukeocarwright 5:e785b9cd58c9 46 //void squareWave();
lukeocarwright 4:9b7ea5528a5c 47 //void sinspeak();
lukeocarwright 5:e785b9cd58c9 48 //void down_isr();
lukeocarwright 5:e785b9cd58c9 49 //void up_isr();
lukeocarwright 2:07cef563acdf 50
lukeocarwright 2:07cef563acdf 51
lukeocarwright 2:07cef563acdf 52 //Global Variables
lukeocarwright 4:9b7ea5528a5c 53 // all times drastically slowed to attempt debugging in teraterm
lukeocarwright 7:33cb5f2db1ee 54 //float g_period = 0.002;
lukeocarwright 7:33cb5f2db1ee 55 //float g_unused= g_period*1000000.0f;
lukeocarwright 7:33cb5f2db1ee 56 //int g_period_us=g_unused;
lukeocarwright 7:33cb5f2db1ee 57 //volatile uint64_t g_uptime_us = g_period_us/2; // placeholder value
lukeocarwright 4:9b7ea5528a5c 58 //isr interrupt flags
lukeocarwright 7:33cb5f2db1ee 59 //volatile int g_upflag=1;
lukeocarwright 7:33cb5f2db1ee 60 //volatile int g_downflag=1;
eencae 0:b7f1f47bb26a 61
eencae 0:b7f1f47bb26a 62 int main()
eencae 0:b7f1f47bb26a 63 {
lukeocarwright 2:07cef563acdf 64 printf("RUNNING CODE \n");
lukeocarwright 7:33cb5f2db1ee 65 start.initialise(lcd,pad); //initialises board and displays start screen
lukeocarwright 7:33cb5f2db1ee 66 menu.mainmenu(lcd,pad);
lukeocarwright 7:33cb5f2db1ee 67 //menu.mainmenu(lcd, pad); //generates main menu
lukeocarwright 5:e785b9cd58c9 68 //squareWave(); //generates pulse wave modulated by sin wave
lukeocarwright 4:9b7ea5528a5c 69 //sinspeak();
lukeocarwright 2:07cef563acdf 70 }
lukeocarwright 2:07cef563acdf 71
lukeocarwright 5:e785b9cd58c9 72 /*
lukeocarwright 4:9b7ea5528a5c 73 void squareWave()
lukeocarwright 4:9b7ea5528a5c 74 {
lukeocarwright 4:9b7ea5528a5c 75 printf("Generating SIN PWM \n");
lukeocarwright 4:9b7ea5528a5c 76
lukeocarwright 4:9b7ea5528a5c 77 int i=0; //int based iterator
lukeocarwright 4:9b7ea5528a5c 78 float ifl=0; //float based itterator
lukeocarwright 4:9b7ea5528a5c 79 float f=50; //frequency of sin wave produced
lukeocarwright 4:9b7ea5528a5c 80 period.attach_us(&up_isr,g_period_us); //ticker to write 1 to rca
lukeocarwright 4:9b7ea5528a5c 81 down.attach_us(&down_isr,g_uptime_us); //ticker to write 0 to rca
lukeocarwright 5:e785b9cd58c9 82
lukeocarwright 5:e785b9cd58c9 83
lukeocarwright 4:9b7ea5528a5c 84 printf("g_period_us: %d \n", g_period_us);
lukeocarwright 4:9b7ea5528a5c 85 printf("sin Frequency: %f \n", f);
lukeocarwright 4:9b7ea5528a5c 86
lukeocarwright 4:9b7ea5528a5c 87 while (1) { //continual loop for pulse production
lukeocarwright 4:9b7ea5528a5c 88 float dutyratio = wavtable[i]; //calcualtes duty ratio of pulse
lukeocarwright 5:e785b9cd58c9 89
lukeocarwright 4:9b7ea5528a5c 90 g_uptime_us= dutyratio*g_period_us; //calculates duty ratio in usecs
lukeocarwright 4:9b7ea5528a5c 91 if (g_uptime_us<1) {
lukeocarwright 4:9b7ea5528a5c 92 g_uptime_us=g_period_us/100;
lukeocarwright 4:9b7ea5528a5c 93 } //sets to be value for timebeing to eliminate 0 error
lukeocarwright 4:9b7ea5528a5c 94 //float f=440*(pad.read_pot1()+1); //removed for simplification
lukeocarwright 5:e785b9cd58c9 95
lukeocarwright 4:9b7ea5528a5c 96 if (g_upflag==0) {
lukeocarwright 5:e785b9cd58c9 97
lukeocarwright 4:9b7ea5528a5c 98 ifl = ifl + (4096*f*g_period); //once rca=1 itterate sin function
lukeocarwright 4:9b7ea5528a5c 99 if (ifl>4096) {
lukeocarwright 4:9b7ea5528a5c 100 ifl= ifl-4096;
lukeocarwright 4:9b7ea5528a5c 101 }
lukeocarwright 4:9b7ea5528a5c 102 i=ifl;
lukeocarwright 5:e785b9cd58c9 103
lukeocarwright 4:9b7ea5528a5c 104 g_upflag=1; //reset flag
lukeocarwright 4:9b7ea5528a5c 105 //printf("iterate i: i= %d, ifl= %f \n", i, ifl);
lukeocarwright 4:9b7ea5528a5c 106 }
lukeocarwright 5:e785b9cd58c9 107
lukeocarwright 4:9b7ea5528a5c 108 //printf("DR: %f \n",dutyratio);
lukeocarwright 4:9b7ea5528a5c 109 //printf("sleep \n");
lukeocarwright 4:9b7ea5528a5c 110 sleep(); //sleeps till next isr
lukeocarwright 4:9b7ea5528a5c 111 }
lukeocarwright 4:9b7ea5528a5c 112 }
lukeocarwright 4:9b7ea5528a5c 113
lukeocarwright 4:9b7ea5528a5c 114 void down_isr() //sets rca to 0
lukeocarwright 4:9b7ea5528a5c 115 {
lukeocarwright 4:9b7ea5528a5c 116 //printf("downISR \n");
lukeocarwright 4:9b7ea5528a5c 117 if (g_downflag==0) {//stops error trigger
lukeocarwright 4:9b7ea5528a5c 118 rca.write(0);
lukeocarwright 4:9b7ea5528a5c 119 g_downflag=1;
lukeocarwright 4:9b7ea5528a5c 120 g_uptime_us= g_uptime_us+g_period_us; // eliminates it calling if =0
lukeocarwright 4:9b7ea5528a5c 121 //printf("0 \n");//print only in while v. slow freguency
lukeocarwright 4:9b7ea5528a5c 122 }
lukeocarwright 4:9b7ea5528a5c 123 }
lukeocarwright 4:9b7ea5528a5c 124
lukeocarwright 4:9b7ea5528a5c 125 void up_isr() //sets rca=1
lukeocarwright 4:9b7ea5528a5c 126 {
lukeocarwright 4:9b7ea5528a5c 127 //printf("upISR \n");
lukeocarwright 4:9b7ea5528a5c 128 rca.write(1);
lukeocarwright 4:9b7ea5528a5c 129 down.attach_us(&down_isr,g_uptime_us); //timer to set rca=0 after elapsed
lukeocarwright 4:9b7ea5528a5c 130 g_upflag=0; //sets flag to iterate
lukeocarwright 4:9b7ea5528a5c 131 g_downflag=0; //sets flag to allow set to 0
lukeocarwright 4:9b7ea5528a5c 132 //printf("1 \n"); //only in while at v low frequency
lukeocarwright 4:9b7ea5528a5c 133 }
lukeocarwright 4:9b7ea5528a5c 134
lukeocarwright 5:e785b9cd58c9 135 */
lukeocarwright 4:9b7ea5528a5c 136 /*
lukeocarwright 2:07cef563acdf 137 void sinspeak ()
lukeocarwright 2:07cef563acdf 138 {
lukeocarwright 2:07cef563acdf 139 float f1=440.0;
lukeocarwright 2:07cef563acdf 140 float i=0;
lukeocarwright 3:b7df72682b81 141 unsigned short v=0;
lukeocarwright 2:07cef563acdf 142 int inc=0;
lukeocarwright 2:07cef563acdf 143 pad.reset_buttons();
lukeocarwright 2:07cef563acdf 144 f1 = pad.read_pot1();
lukeocarwright 3:b7df72682b81 145 f1 = 440.0f+440.0f*f1;
lukeocarwright 3:b7df72682b81 146 //printf("f1= %f \n",f1); // Used for Debug
lukeocarwright 2:07cef563acdf 147
lukeocarwright 2:07cef563acdf 148 while (inc<3000) {
lukeocarwright 2:07cef563acdf 149 int inti = i;
lukeocarwright 2:07cef563acdf 150 v = o[inti];
lukeocarwright 4:9b7ea5528a5c 151 printf("OUTPUT: %u \n", v);
lukeocarwright 4:9b7ea5528a5c 152 //pad.write_u16(v);
lukeocarwright 3:b7df72682b81 153 wait_us(230); //fs= 4k Ts=250us
lukeocarwright 3:b7df72682b81 154
lukeocarwright 3:b7df72682b81 155 i = i + ((4096.0f*f1)/4000.0f); //i+((samples*f)*Ts)
lukeocarwright 2:07cef563acdf 156 if (i>=4096.0f) {
lukeocarwright 2:07cef563acdf 157 i=i-4096.0f;
lukeocarwright 3:b7df72682b81 158 }
lukeocarwright 3:b7df72682b81 159 else {
lukeocarwright 4:9b7ea5528a5c 160 wait_us(3); // used to attempt note stabilisation to match other loop
lukeocarwright 2:07cef563acdf 161 }
lukeocarwright 2:07cef563acdf 162 inc++;
lukeocarwright 2:07cef563acdf 163 }
lukeocarwright 2:07cef563acdf 164 }
lukeocarwright 4:9b7ea5528a5c 165 */