Bresdin O'Malley / Mbed 2 deprecated slider_diatonic_v2_buttonTimers

HW 7.1 Attempt to use button timers to check for button status instead of interrupts

Dependencies:   SLCD TSI mbed

Fork of slider_diatonic_v1 by Stanley Cohen

slider_diatonic_v1.cpp@4:922d6f8fe95f, 2015-02-25 (annotated)

Committer:
bomalley
Date:
Wed Feb 25 18:28:52 2015 +0000
Revision:
4:922d6f8fe95f
Parent:
3:f68e9cdfaf2d 
HW 7.1

Who changed what in which revision?

UserRevisionLine numberNew contents of line
scohennm 2:7f347d6a6422 1 #include "mbed.h"
scohennm 2:7f347d6a6422 2 #include "SLCD.h"
scohennm 2:7f347d6a6422 3 #include "TSISensor.h"
scohennm 2:7f347d6a6422 4
scohennm 2:7f347d6a6422 5
scohennm 2:7f347d6a6422 6 #define CHANNELON 0
scohennm 2:7f347d6a6422 7 #define CHANNELOFF 1
scohennm 2:7f347d6a6422 8 #define LCDLEN 10
scohennm 3:f68e9cdfaf2d 9 #define DATATIME 100 //milli seccnds
scohennm 2:7f347d6a6422 10 //LCD messages
scohennm 2:7f347d6a6422 11
scohennm 2:7f347d6a6422 12
scohennm 2:7f347d6a6422 13
scohennm 2:7f347d6a6422 14 // Operating parameters
scohennm 2:7f347d6a6422 15 #define SIDETONE 700.0
scohennm 2:7f347d6a6422 16 #define TONEMIN 200.0
scohennm 2:7f347d6a6422 17 #define TONEINT 800.00 // So tone max is 1000
scohennm 2:7f347d6a6422 18 #define TONEON 0.50
scohennm 2:7f347d6a6422 19 #define TONEOFF 0.0
scohennm 2:7f347d6a6422 20 #define SPEEDAST 0
scohennm 2:7f347d6a6422 21 #define TONEAST 1
scohennm 3:f68e9cdfaf2d 22 #define NUMTONES 10
scohennm 3:f68e9cdfaf2d 23 #define LEDPERIOD 0.001
scohennm 3:f68e9cdfaf2d 24 //#define PRINTDEBUG
scohennm 2:7f347d6a6422 25
bomalley 4:922d6f8fe95f 26 #define NUMOCTS 1
bomalley 4:922d6f8fe95f 27 //Button -->
bomalley 4:922d6f8fe95f 28 #define BUTOFF 1
bomalley 4:922d6f8fe95f 29 #define BUTON 0
bomalley 4:922d6f8fe95f 30 #define BUTTON PTC3
bomalley 4:922d6f8fe95f 31 #define PUSHTIME 1000 //wait to check for button press
bomalley 4:922d6f8fe95f 32
scohennm 3:f68e9cdfaf2d 33 Serial pc(USBTX, USBRX);
scohennm 3:f68e9cdfaf2d 34
scohennm 3:f68e9cdfaf2d 35 float diatonicScale[NUMTONES] = {246.94, 261.63,293.66,329.63,349.23,392.00,440.00,493.88,523.25,587.33};
scohennm 2:7f347d6a6422 36 SLCD slcd; //define LCD display
scohennm 2:7f347d6a6422 37
scohennm 2:7f347d6a6422 38 TSISensor tsiScaling; // Capacitive sensor/slider
scohennm 2:7f347d6a6422 39
scohennm 3:f68e9cdfaf2d 40
scohennm 2:7f347d6a6422 41 PwmOut led(LED_RED);
scohennm 2:7f347d6a6422 42 DigitalOut outPin(PTC9); //J1-16
scohennm 2:7f347d6a6422 43 PwmOut soundOut(PTA13);
scohennm 3:f68e9cdfaf2d 44 Timer dataTimer;
scohennm 2:7f347d6a6422 45 // Global scalars
scohennm 2:7f347d6a6422 46 char lcdData[LCDLEN];
scohennm 2:7f347d6a6422 47
scohennm 2:7f347d6a6422 48 float tonePeriod;
scohennm 2:7f347d6a6422 49 float toneFreq = SIDETONE;
scohennm 2:7f347d6a6422 50
bomalley 4:922d6f8fe95f 51 //Timers-->
bomalley 4:922d6f8fe95f 52 Timer buttonTimer;//checks for button state change after set amout of time.
scohennm 2:7f347d6a6422 53
bomalley 4:922d6f8fe95f 54 //buttons -->
bomalley 4:922d6f8fe95f 55
bomalley 4:922d6f8fe95f 56 int LButtonState = BUTOFF; //Set the button state to off
bomalley 4:922d6f8fe95f 57 DigitalIn LftButton(BUTTON); //PTC3
bomalley 4:922d6f8fe95f 58
bomalley 4:922d6f8fe95f 59 //Octave changer -->
bomalley 4:922d6f8fe95f 60 int octaveState = NUMOCTS; //Not sure what value this should be
scohennm 2:7f347d6a6422 61
scohennm 2:7f347d6a6422 62 void LCDMessNoDwell(char *lMess){
scohennm 2:7f347d6a6422 63 slcd.Home();
scohennm 2:7f347d6a6422 64 slcd.clear();
scohennm 2:7f347d6a6422 65 slcd.printf(lMess);
scohennm 2:7f347d6a6422 66 }
scohennm 2:7f347d6a6422 67
scohennm 3:f68e9cdfaf2d 68 void diatonicAdjust( float scaling) {
scohennm 2:7f347d6a6422 69 int tempInt;
scohennm 3:f68e9cdfaf2d 70 int scaleIndex;
scohennm 3:f68e9cdfaf2d 71 static int oldScaleIndex = 0;
scohennm 3:f68e9cdfaf2d 72 /* There appears to be a set up time for setting the PWM time period
scohennm 3:f68e9cdfaf2d 73 only do a nes set up if the indext changes.
scohennm 3:f68e9cdfaf2d 74 */
scohennm 3:f68e9cdfaf2d 75 scaleIndex = (int)(NUMTONES * scaling);
scohennm 3:f68e9cdfaf2d 76 if (scaleIndex != oldScaleIndex) {
scohennm 3:f68e9cdfaf2d 77 toneFreq = diatonicScale[scaleIndex];
scohennm 3:f68e9cdfaf2d 78 tonePeriod = 1.0/toneFreq;
scohennm 3:f68e9cdfaf2d 79 soundOut.period(tonePeriod); // adjusting period
scohennm 3:f68e9cdfaf2d 80 soundOut.write(TONEON); // there is a setup time for both period and DF
scohennm 3:f68e9cdfaf2d 81 oldScaleIndex = scaleIndex;
scohennm 3:f68e9cdfaf2d 82 } else {
scohennm 3:f68e9cdfaf2d 83 return;
scohennm 3:f68e9cdfaf2d 84 }
scohennm 3:f68e9cdfaf2d 85 #ifdef PRINTDEBUG
scohennm 3:f68e9cdfaf2d 86 pc.printf(" %f,%d\n\r",scaling, scaleIndex );
scohennm 3:f68e9cdfaf2d 87 #endif
scohennm 2:7f347d6a6422 88 tempInt = (int)toneFreq;
scohennm 2:7f347d6a6422 89 sprintf (lcdData,"%4d",tempInt);
scohennm 2:7f347d6a6422 90 LCDMessNoDwell(lcdData);
scohennm 2:7f347d6a6422 91 return;
scohennm 2:7f347d6a6422 92 }
scohennm 2:7f347d6a6422 93 void lightAdjust( float scaling) { // Control brightness of LED
scohennm 2:7f347d6a6422 94 float tempDutyFactor;
scohennm 2:7f347d6a6422 95
scohennm 3:f68e9cdfaf2d 96 tempDutyFactor = 1.0 - scaling; //LED is a sinking connection // anode is held at 5V
scohennm 3:f68e9cdfaf2d 97 led.write(tempDutyFactor); //adjusting duty factor
scohennm 2:7f347d6a6422 98 return;
scohennm 2:7f347d6a6422 99 }
scohennm 3:f68e9cdfaf2d 100
scohennm 2:7f347d6a6422 101 int main(){
scohennm 2:7f347d6a6422 102 int tempInt;
scohennm 2:7f347d6a6422 103 float tempValue;
scohennm 3:f68e9cdfaf2d 104
scohennm 2:7f347d6a6422 105 tonePeriod = 1.0/toneFreq;
scohennm 2:7f347d6a6422 106 soundOut.period(tonePeriod);
scohennm 3:f68e9cdfaf2d 107 led.period(tonePeriod);
scohennm 3:f68e9cdfaf2d 108 led.write(CHANNELOFF);
scohennm 3:f68e9cdfaf2d 109 outPin.write(CHANNELOFF);
scohennm 2:7f347d6a6422 110
scohennm 2:7f347d6a6422 111 tempInt = (int)toneFreq;
scohennm 2:7f347d6a6422 112 sprintf (lcdData,"%4d",tempInt);
scohennm 2:7f347d6a6422 113 LCDMessNoDwell(lcdData);
scohennm 3:f68e9cdfaf2d 114 // Start data timer
scohennm 3:f68e9cdfaf2d 115 dataTimer.start();
scohennm 3:f68e9cdfaf2d 116 dataTimer.reset();
bomalley 4:922d6f8fe95f 117 buttonTimer.start(); //checks for button state change after set amout of time.
bomalley 4:922d6f8fe95f 118 buttonTimer.reset();
bomalley 4:922d6f8fe95f 119
scohennm 2:7f347d6a6422 120 while (true) {
bomalley 4:922d6f8fe95f 121
bomalley 4:922d6f8fe95f 122 if(buttonTimer.read_ms() > PUSHTIME) {
bomalley 4:922d6f8fe95f 123 //check button first
bomalley 4:922d6f8fe95f 124 LButtonState = !LftButton; //button is off or on
bomalley 4:922d6f8fe95f 125 if(LButtonState) {
bomalley 4:922d6f8fe95f 126 octaveState++;
bomalley 4:922d6f8fe95f 127 octaveState = octaveState % NUMOCTS;
bomalley 4:922d6f8fe95f 128 }
bomalley 4:922d6f8fe95f 129 }
bomalley 4:922d6f8fe95f 130
scohennm 3:f68e9cdfaf2d 131 if (dataTimer.read_ms() > DATATIME){ // check to see if enough time has passed
scohennm 3:f68e9cdfaf2d 132 // to read the touch pad
scohennm 3:f68e9cdfaf2d 133 tempValue = tsiScaling.readPercentage();
scohennm 3:f68e9cdfaf2d 134 if(tempValue > 0) {
scohennm 3:f68e9cdfaf2d 135 // soundOut.write(TONEON); // set duty factor to 50%
scohennm 3:f68e9cdfaf2d 136 diatonicAdjust(tempValue);
scohennm 3:f68e9cdfaf2d 137 lightAdjust(tempValue);
scohennm 3:f68e9cdfaf2d 138 } else {
scohennm 3:f68e9cdfaf2d 139 soundOut.write(TONEOFF); // set dutyfactor to 0%
bomalley 4:922d6f8fe95f 140 sprintf(lcdData, "%4d", octaveState + 1);
bomalley 4:922d6f8fe95f 141 LCDMessNoDwell("lcdData");
scohennm 3:f68e9cdfaf2d 142 }
scohennm 3:f68e9cdfaf2d 143 dataTimer.reset();
scohennm 3:f68e9cdfaf2d 144 }
scohennm 2:7f347d6a6422 145 } // while forever
scohennm 2:7f347d6a6422 146 }// end main