Keisha Brathwaite / Mbed 2 deprecated KBrat-SSD541-HW-9_2

KBrat-SSD541-HW-9.2

Dependencies:   SLCD mbed

Fork of kl46z_stop_watch_v2 by Stanley Cohen

main.cpp@1:0d13b6d7907f, 2016-10-12 (annotated)

Committer:
scohennm
Date:
Wed Oct 12 15:55:44 2016 +0000
Revision:
1:0d13b6d7907f
Parent:
0:04499bc54bee
Child:
2:1d77439751bf
Stop watch to demo mod buttons and timer class.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
scohennm 0:04499bc54bee 1 #include "mbed.h"
scohennm 1:0d13b6d7907f 2 #include <math.h>
scohennm 0:04499bc54bee 3 #include "SLCD.h"
scohennm 1:0d13b6d7907f 4
scohennm 1:0d13b6d7907f 5 #define LEDON false
scohennm 1:0d13b6d7907f 6 #define LEDOFF true
scohennm 1:0d13b6d7907f 7 #define NUMBUTS 2
scohennm 1:0d13b6d7907f 8 #define LBUT PTC12 // port addresses for buttons
scohennm 1:0d13b6d7907f 9 #define RBUT PTC3
scohennm 1:0d13b6d7907f 10 #define STOPPEDSTATE 0
scohennm 1:0d13b6d7907f 11 #define TIMINGSTATE 1
scohennm 1:0d13b6d7907f 12 #define RESETTINGSTATE 0
scohennm 1:0d13b6d7907f 13 #define PRINTDELTA 0.01
scohennm 0:04499bc54bee 14 #define LCDCHARLEN 10
scohennm 1:0d13b6d7907f 15 #define BUTTONTIME 0.2
scohennm 1:0d13b6d7907f 16 #define FULLMINUTE 60 //seconds
scohennm 1:0d13b6d7907f 17 #define PROGNAME "kl46z_stop_watch_v1\n\r"
scohennm 1:0d13b6d7907f 18 #define LCDTITLE "STPW"
scohennm 1:0d13b6d7907f 19 #define TITLEWAIT 2.0
scohennm 1:0d13b6d7907f 20
scohennm 1:0d13b6d7907f 21 //#define PRINTDBUG // uncomment if printing to serial port desired
scohennm 0:04499bc54bee 22
scohennm 0:04499bc54bee 23 SLCD slcd; //define LCD display
scohennm 0:04499bc54bee 24 Serial pc(USBTX, USBRX);
scohennm 0:04499bc54bee 25
scohennm 1:0d13b6d7907f 26 Timer ButtonTimer; // for reading button states
scohennm 1:0d13b6d7907f 27 DigitalIn buttons[NUMBUTS] = {RBUT, LBUT};
scohennm 1:0d13b6d7907f 28 int displayState = STOPPEDSTATE;
scohennm 1:0d13b6d7907f 29
scohennm 1:0d13b6d7907f 30
scohennm 1:0d13b6d7907f 31
scohennm 1:0d13b6d7907f 32 void initialize_global_vars(){
scohennm 1:0d13b6d7907f 33 pc.printf(PROGNAME);
scohennm 1:0d13b6d7907f 34 // set up DAQ timer
scohennm 1:0d13b6d7907f 35 // set up DAQ timers
scohennm 1:0d13b6d7907f 36 ButtonTimer.start();
scohennm 1:0d13b6d7907f 37 ButtonTimer.reset();
scohennm 1:0d13b6d7907f 38 }
scohennm 0:04499bc54bee 39
scohennm 0:04499bc54bee 40 void LCDMess(char *lMess){
scohennm 0:04499bc54bee 41 slcd.Home();
scohennm 0:04499bc54bee 42 slcd.clear();
scohennm 0:04499bc54bee 43 slcd.printf(lMess);
scohennm 0:04499bc54bee 44 }
scohennm 1:0d13b6d7907f 45 void showTitle(){
scohennm 1:0d13b6d7907f 46 LCDMess(LCDTITLE);
scohennm 1:0d13b6d7907f 47 wait(TITLEWAIT);
scohennm 1:0d13b6d7907f 48 return;
scohennm 1:0d13b6d7907f 49 }
scohennm 0:04499bc54bee 50 int main(void) {
scohennm 1:0d13b6d7907f 51 int i;
scohennm 0:04499bc54bee 52 char lcdData[LCDCHARLEN];
scohennm 0:04499bc54bee 53 PwmOut gled(LED_GREEN);
scohennm 0:04499bc54bee 54 PwmOut rled(LED_RED);
scohennm 0:04499bc54bee 55 pc.printf(PROGNAME);
scohennm 1:0d13b6d7907f 56 float secondsCount = 0.0;
scohennm 1:0d13b6d7907f 57 int minutesCount; // for displaying mininuts
scohennm 1:0d13b6d7907f 58 int seconds; //
scohennm 1:0d13b6d7907f 59 int fifthSeconds;
scohennm 1:0d13b6d7907f 60 bool statetoggle = false; //was in stopped state.
scohennm 1:0d13b6d7907f 61
scohennm 1:0d13b6d7907f 62 initialize_global_vars();
scohennm 1:0d13b6d7907f 63 showTitle();
scohennm 0:04499bc54bee 64
scohennm 0:04499bc54bee 65 while (true) {
scohennm 1:0d13b6d7907f 66 if (ButtonTimer > BUTTONTIME){
scohennm 1:0d13b6d7907f 67 for (i=0; i<NUMBUTS; i++){ // index will be 0 or 1
scohennm 1:0d13b6d7907f 68 if(!buttons[i]) { // a buttton is pressed
scohennm 1:0d13b6d7907f 69 displayState = i;
scohennm 1:0d13b6d7907f 70 switch (displayState){ // this keeps things generic
scohennm 1:0d13b6d7907f 71 case TIMINGSTATE: {
scohennm 1:0d13b6d7907f 72 statetoggle = !statetoggle;
scohennm 1:0d13b6d7907f 73 break;
scohennm 1:0d13b6d7907f 74 }
scohennm 1:0d13b6d7907f 75 case RESETTINGSTATE :{
scohennm 1:0d13b6d7907f 76 break;
scohennm 1:0d13b6d7907f 77 }
scohennm 1:0d13b6d7907f 78 }
scohennm 1:0d13b6d7907f 79 } // if ! buttons
scohennm 1:0d13b6d7907f 80 }// for loop to look at buttons
scohennm 1:0d13b6d7907f 81 ButtonTimer.reset();
scohennm 1:0d13b6d7907f 82 switch (displayState){
scohennm 1:0d13b6d7907f 83 /* this goes away
scohennm 1:0d13b6d7907f 84 case STOPPEDSTATE : {
scohennm 1:0d13b6d7907f 85 rled = 0.0;
scohennm 1:0d13b6d7907f 86 gled = 1.0;
scohennm 1:0d13b6d7907f 87 break;
scohennm 1:0d13b6d7907f 88 }
scohennm 1:0d13b6d7907f 89 */
scohennm 1:0d13b6d7907f 90 case RESETTINGSTATE:
scohennm 1:0d13b6d7907f 91 if (!statetoggle){
scohennm 1:0d13b6d7907f 92 secondsCount = 0;
scohennm 1:0d13b6d7907f 93 displayState = TIMINGSTATE;
scohennm 1:0d13b6d7907f 94 }
scohennm 1:0d13b6d7907f 95 rled = 0.0;
scohennm 1:0d13b6d7907f 96 gled = 1.0;
scohennm 1:0d13b6d7907f 97 break;
scohennm 1:0d13b6d7907f 98
scohennm 1:0d13b6d7907f 99
scohennm 1:0d13b6d7907f 100 case TIMINGSTATE : {
scohennm 1:0d13b6d7907f 101 if(statetoggle){
scohennm 1:0d13b6d7907f 102 secondsCount = secondsCount + BUTTONTIME;
scohennm 1:0d13b6d7907f 103 }
scohennm 1:0d13b6d7907f 104 rled = 1.0;
scohennm 1:0d13b6d7907f 105 gled = 0.0;
scohennm 1:0d13b6d7907f 106 break;
scohennm 1:0d13b6d7907f 107 }
scohennm 1:0d13b6d7907f 108 }
scohennm 1:0d13b6d7907f 109
scohennm 1:0d13b6d7907f 110 // Parse the seconds
scohennm 1:0d13b6d7907f 111 seconds = (int)secondsCount; // make seconds "mask"
scohennm 1:0d13b6d7907f 112 fifthSeconds = (int)((secondsCount - (float)seconds) * 10); // the 0.2 seconds
scohennm 1:0d13b6d7907f 113 minutesCount = seconds / FULLMINUTE;
scohennm 1:0d13b6d7907f 114 seconds = seconds % FULLMINUTE;
scohennm 1:0d13b6d7907f 115 sprintf (lcdData,"%1d.%02d.%1d",minutesCount,seconds,fifthSeconds);
scohennm 1:0d13b6d7907f 116 LCDMess(lcdData);
scohennm 1:0d13b6d7907f 117 }// end Button timer
scohennm 0:04499bc54bee 118 }
scohennm 0:04499bc54bee 119 }