Luke Cartwright / Mbed 2 deprecated ELEC2645_Project_el18loc_nearlythere

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Dependencies:   mbed

main.cpp@21:60f01b17b0a6, 2020-05-23 (annotated)

Committer:
lukeocarwright
Date:
Sat May 23 14:40:40 2020 +0000
Revision:
21:60f01b17b0a6
Parent:
20:fe235c124c67
Child:
24:c3bb1b0b2207
Publish to check Documentation;

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 21:60f01b17b0a6 11 Last Edited: 23/05/2020
eencae 0:b7f1f47bb26a 12 */
eencae 0:b7f1f47bb26a 13
lukeocarwright 5:e785b9cd58c9 14 /* TO DO:
lukeocarwright 21:60f01b17b0a6 15 Sort Squarewave+tri Sound
lukeocarwright 17:358987e9f30e 16 Add Menu from front.cpp
lukeocarwright 20:fe235c124c67 17 Master Volume
lukeocarwright 8:f305ea78b2b1 18 MIDI
lukeocarwright 5:e785b9cd58c9 19 */
lukeocarwright 2:07cef563acdf 20 // Includes
eencae 0:b7f1f47bb26a 21 #include "mbed.h"
eencae 0:b7f1f47bb26a 22 #include "Gamepad.h"
eencae 0:b7f1f47bb26a 23 #include "N5110.h"
lukeocarwright 8:f305ea78b2b1 24 #include "Menu.h"
lukeocarwright 7:33cb5f2db1ee 25 #include "startup.h"
lukeocarwright 7:33cb5f2db1ee 26 #include "Front.h"
eencae 0:b7f1f47bb26a 27
lukeocarwright 9:f6ba53e355a0 28 #ifdef DEBUG
lukeocarwright 9:f6ba53e355a0 29 # include "Debug.h"
lukeocarwright 9:f6ba53e355a0 30 #endif
lukeocarwright 9:f6ba53e355a0 31
lukeocarwright 2:07cef563acdf 32 // Objects
eencae 0:b7f1f47bb26a 33 Gamepad pad;
eencae 0:b7f1f47bb26a 34 N5110 lcd;
lukeocarwright 8:f305ea78b2b1 35 Menu menu;
lukeocarwright 7:33cb5f2db1ee 36 startup start;
lukeocarwright 14:9cfe0041cc4e 37 Ticker tick;
lukeocarwright 4:9b7ea5528a5c 38
lukeocarwright 14:9cfe0041cc4e 39 //DigitalOut rca(PTC4);
lukeocarwright 14:9cfe0041cc4e 40 //Serial pc(USBTX, USBRX);
lukeocarwright 2:07cef563acdf 41
lukeocarwright 2:07cef563acdf 42 //Functions
lukeocarwright 5:e785b9cd58c9 43 //void squareWave();
lukeocarwright 4:9b7ea5528a5c 44 //void sinspeak();
lukeocarwright 14:9cfe0041cc4e 45 void noise_isr();
lukeocarwright 2:07cef563acdf 46
lukeocarwright 2:07cef563acdf 47
lukeocarwright 2:07cef563acdf 48 //Global Variables
lukeocarwright 14:9cfe0041cc4e 49 volatile extern int g_isr_flag; //may need extern
lukeocarwright 10:258a1eca02cc 50
lukeocarwright 15:1c67f064278e 51
eencae 0:b7f1f47bb26a 52 int main()
eencae 0:b7f1f47bb26a 53 {
lukeocarwright 2:07cef563acdf 54 printf("RUNNING CODE \n");
lukeocarwright 7:33cb5f2db1ee 55 start.initialise(lcd,pad); //initialises board and displays start screen
lukeocarwright 14:9cfe0041cc4e 56
lukeocarwright 14:9cfe0041cc4e 57 #ifdef DEBUG
lukeocarwright 14:9cfe0041cc4e 58 printf("DEBUG COMPILE RUNNING\n");
lukeocarwright 14:9cfe0041cc4e 59 run_LUTs_debug();
lukeocarwright 14:9cfe0041cc4e 60 #endif
lukeocarwright 14:9cfe0041cc4e 61
lukeocarwright 14:9cfe0041cc4e 62 #ifdef SLOW_TIME //ATTACH TICKERS FOR SOUND
lukeocarwright 15:1c67f064278e 63 printf("Running in SLOW_TIME\n");
lukeocarwright 15:1c67f064278e 64 tick.attach(&noise_isr, 1); //extended for debug (1Hz)
lukeocarwright 15:1c67f064278e 65 #endif
lukeocarwright 18:204cd747b54a 66 #ifdef CSV
lukeocarwright 18:204cd747b54a 67 printf("Running in SLOW_TIME\n");
lukeocarwright 18:204cd747b54a 68 tick.attach_us(&noise_isr, 5000); //extended for debug (1Hz)
lukeocarwright 18:204cd747b54a 69 #endif
lukeocarwright 15:1c67f064278e 70 #ifndef SLOW_TIME
lukeocarwright 18:204cd747b54a 71 #ifndef CSV
lukeocarwright 18:204cd747b54a 72 tick.attach_us(&noise_isr, 63); //normal mode SR=16kHz
lukeocarwright 18:204cd747b54a 73 #endif
lukeocarwright 14:9cfe0041cc4e 74 #endif
lukeocarwright 14:9cfe0041cc4e 75
lukeocarwright 14:9cfe0041cc4e 76 menu.mainmenu(lcd,pad);
lukeocarwright 9:f6ba53e355a0 77
lukeocarwright 14:9cfe0041cc4e 78 //UNUSED FUNCTIONS:-------------------------------------------------------------
lukeocarwright 5:e785b9cd58c9 79 //squareWave(); //generates pulse wave modulated by sin wave
lukeocarwright 4:9b7ea5528a5c 80 //sinspeak();
lukeocarwright 2:07cef563acdf 81 }
lukeocarwright 2:07cef563acdf 82
lukeocarwright 14:9cfe0041cc4e 83 void noise_isr() {
lukeocarwright 14:9cfe0041cc4e 84 #ifdef SLOW_TIME
lukeocarwright 14:9cfe0041cc4e 85 if (g_isr_flag==0) {
lukeocarwright 18:204cd747b54a 86 //printf("ISR INTTERUPT = 1\n");
lukeocarwright 14:9cfe0041cc4e 87 }
lukeocarwright 14:9cfe0041cc4e 88 #endif
lukeocarwright 14:9cfe0041cc4e 89 g_isr_flag=1;
lukeocarwright 14:9cfe0041cc4e 90 }
lukeocarwright 14:9cfe0041cc4e 91
lukeocarwright 5:e785b9cd58c9 92 /*
lukeocarwright 4:9b7ea5528a5c 93 void squareWave()
lukeocarwright 4:9b7ea5528a5c 94 {
lukeocarwright 4:9b7ea5528a5c 95 printf("Generating SIN PWM \n");
lukeocarwright 4:9b7ea5528a5c 96
lukeocarwright 4:9b7ea5528a5c 97 int i=0; //int based iterator
lukeocarwright 4:9b7ea5528a5c 98 float ifl=0; //float based itterator
lukeocarwright 4:9b7ea5528a5c 99 float f=50; //frequency of sin wave produced
lukeocarwright 4:9b7ea5528a5c 100 period.attach_us(&up_isr,g_period_us); //ticker to write 1 to rca
lukeocarwright 4:9b7ea5528a5c 101 down.attach_us(&down_isr,g_uptime_us); //ticker to write 0 to rca
lukeocarwright 5:e785b9cd58c9 102
lukeocarwright 5:e785b9cd58c9 103
lukeocarwright 4:9b7ea5528a5c 104 printf("g_period_us: %d \n", g_period_us);
lukeocarwright 4:9b7ea5528a5c 105 printf("sin Frequency: %f \n", f);
lukeocarwright 4:9b7ea5528a5c 106
lukeocarwright 4:9b7ea5528a5c 107 while (1) { //continual loop for pulse production
lukeocarwright 4:9b7ea5528a5c 108 float dutyratio = wavtable[i]; //calcualtes duty ratio of pulse
lukeocarwright 5:e785b9cd58c9 109
lukeocarwright 4:9b7ea5528a5c 110 g_uptime_us= dutyratio*g_period_us; //calculates duty ratio in usecs
lukeocarwright 4:9b7ea5528a5c 111 if (g_uptime_us<1) {
lukeocarwright 4:9b7ea5528a5c 112 g_uptime_us=g_period_us/100;
lukeocarwright 4:9b7ea5528a5c 113 } //sets to be value for timebeing to eliminate 0 error
lukeocarwright 4:9b7ea5528a5c 114 //float f=440*(pad.read_pot1()+1); //removed for simplification
lukeocarwright 5:e785b9cd58c9 115
lukeocarwright 4:9b7ea5528a5c 116 if (g_upflag==0) {
lukeocarwright 5:e785b9cd58c9 117
lukeocarwright 4:9b7ea5528a5c 118 ifl = ifl + (4096*f*g_period); //once rca=1 itterate sin function
lukeocarwright 4:9b7ea5528a5c 119 if (ifl>4096) {
lukeocarwright 4:9b7ea5528a5c 120 ifl= ifl-4096;
lukeocarwright 4:9b7ea5528a5c 121 }
lukeocarwright 4:9b7ea5528a5c 122 i=ifl;
lukeocarwright 5:e785b9cd58c9 123
lukeocarwright 4:9b7ea5528a5c 124 g_upflag=1; //reset flag
lukeocarwright 4:9b7ea5528a5c 125 //printf("iterate i: i= %d, ifl= %f \n", i, ifl);
lukeocarwright 4:9b7ea5528a5c 126 }
lukeocarwright 5:e785b9cd58c9 127
lukeocarwright 4:9b7ea5528a5c 128 //printf("DR: %f \n",dutyratio);
lukeocarwright 4:9b7ea5528a5c 129 //printf("sleep \n");
lukeocarwright 4:9b7ea5528a5c 130 sleep(); //sleeps till next isr
lukeocarwright 4:9b7ea5528a5c 131 }
lukeocarwright 4:9b7ea5528a5c 132 }
lukeocarwright 4:9b7ea5528a5c 133
lukeocarwright 2:07cef563acdf 134 void sinspeak ()
lukeocarwright 2:07cef563acdf 135 {
lukeocarwright 2:07cef563acdf 136 float f1=440.0;
lukeocarwright 2:07cef563acdf 137 float i=0;
lukeocarwright 3:b7df72682b81 138 unsigned short v=0;
lukeocarwright 2:07cef563acdf 139 int inc=0;
lukeocarwright 2:07cef563acdf 140 pad.reset_buttons();
lukeocarwright 2:07cef563acdf 141 f1 = pad.read_pot1();
lukeocarwright 3:b7df72682b81 142 f1 = 440.0f+440.0f*f1;
lukeocarwright 3:b7df72682b81 143 //printf("f1= %f \n",f1); // Used for Debug
lukeocarwright 2:07cef563acdf 144
lukeocarwright 2:07cef563acdf 145 while (inc<3000) {
lukeocarwright 2:07cef563acdf 146 int inti = i;
lukeocarwright 2:07cef563acdf 147 v = o[inti];
lukeocarwright 4:9b7ea5528a5c 148 printf("OUTPUT: %u \n", v);
lukeocarwright 4:9b7ea5528a5c 149 //pad.write_u16(v);
lukeocarwright 3:b7df72682b81 150 wait_us(230); //fs= 4k Ts=250us
lukeocarwright 3:b7df72682b81 151
lukeocarwright 3:b7df72682b81 152 i = i + ((4096.0f*f1)/4000.0f); //i+((samples*f)*Ts)
lukeocarwright 2:07cef563acdf 153 if (i>=4096.0f) {
lukeocarwright 2:07cef563acdf 154 i=i-4096.0f;
lukeocarwright 3:b7df72682b81 155 }
lukeocarwright 3:b7df72682b81 156 else {
lukeocarwright 4:9b7ea5528a5c 157 wait_us(3); // used to attempt note stabilisation to match other loop
lukeocarwright 2:07cef563acdf 158 }
lukeocarwright 2:07cef563acdf 159 inc++;
lukeocarwright 2:07cef563acdf 160 }
lukeocarwright 2:07cef563acdf 161 }
lukeocarwright 4:9b7ea5528a5c 162 */