Luke Cartwright / Mbed 2 deprecated ELEC2645_Project_el18loc_nearlythere

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Dependencies:   mbed

main.cpp@17:358987e9f30e, 2020-05-21 (annotated)

Committer:
lukeocarwright
Date:
Thu May 21 12:50:43 2020 +0000
Revision:
17:358987e9f30e
Parent:
16:14c231624f3e
Child:
18:204cd747b54a
Contrast Setting working.

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