Diff: main.cpp

Revision:

1:0d13b6d7907f

Parent:

0:04499bc54bee

--- a/main.cpp	Fri Sep 09 17:51:13 2016 +0000
+++ b/main.cpp	Wed Oct 12 15:55:44 2016 +0000
@@ -1,41 +1,119 @@
 #include "mbed.h"
-#include "TSISensor.h"
+#include <math.h>  
 #include "SLCD.h"
-#define TSILIMIT 0.99
+
+#define LEDON false
+#define LEDOFF true
+#define NUMBUTS 2
+#define LBUT PTC12  // port addresses for buttons
+#define RBUT PTC3
+#define STOPPEDSTATE 0
+#define TIMINGSTATE  1
+#define RESETTINGSTATE 0
+#define PRINTDELTA 0.01
 #define LCDCHARLEN 10
-#define DATAINTERVAL 0.1
-#define PROGNAME "kl46z_slider_test_v1\n\r"
+#define BUTTONTIME 0.2
+#define FULLMINUTE 60 //seconds
+#define PROGNAME "kl46z_stop_watch_v1\n\r"
+#define LCDTITLE "STPW"
+#define TITLEWAIT 2.0
+
+//#define PRINTDBUG // uncomment if printing to serial port desired
 
 SLCD slcd; //define LCD display
 Serial pc(USBTX, USBRX);
 
-float tsidata;
+Timer ButtonTimer; // for reading button states
+DigitalIn buttons[NUMBUTS] = {RBUT, LBUT};
+int displayState = STOPPEDSTATE;
+
+
+
+void initialize_global_vars(){
+    pc.printf(PROGNAME);
+    // set up DAQ timer
+    // set up DAQ timers
+    ButtonTimer.start();
+    ButtonTimer.reset(); 
+} 
 
 void LCDMess(char *lMess){
         slcd.Home();
         slcd.clear();
         slcd.printf(lMess);
 }
-
+void showTitle(){
+    LCDMess(LCDTITLE);
+    wait(TITLEWAIT);
+    return;
+}
 int main(void) {
+    int i;
     char lcdData[LCDCHARLEN];
     PwmOut gled(LED_GREEN);
     PwmOut rled(LED_RED);
     pc.printf(PROGNAME);
-    TSISensor tsi;
+    float secondsCount = 0.0;
+    int minutesCount; // for displaying mininuts
+    int seconds; //
+    int fifthSeconds;
+    bool statetoggle = false; //was in stopped state.
+    
+    initialize_global_vars();
+    showTitle();
 
      while (true) {
-        tsidata = tsi.readPercentage();
-        if (tsidata > TSILIMIT){
-            gled = 0.0;
-            rled = 0.0;
-        }else {
-            pc.printf("\n Position %f\n\r", tsidata);
-            sprintf (lcdData,"%0.4f",tsidata);  
-            LCDMess(lcdData);  
-            gled = tsidata;
-            rled = 1.0 - tsidata;
-        }
-            wait(DATAINTERVAL);
+        if (ButtonTimer > BUTTONTIME){
+            for (i=0; i<NUMBUTS; i++){ // index will be 0 or 1 
+                if(!buttons[i]) { // a buttton is pressed
+                    displayState = i; 
+                    switch (displayState){  // this keeps things generic
+                        case TIMINGSTATE: {              
+                         statetoggle = !statetoggle;
+                         break;
+                        }
+                        case RESETTINGSTATE :{
+                        break;
+                        }
+                    }   
+                } // if ! buttons
+            }// for loop to look at buttons
+            ButtonTimer.reset();
+            switch (displayState){
+                    /* this goes away
+                    case STOPPEDSTATE : {                     
+                        rled = 0.0;
+                        gled = 1.0;
+                        break;
+                    }
+                    */
+                    case RESETTINGSTATE:
+                        if (!statetoggle){
+                            secondsCount = 0;
+                            displayState = TIMINGSTATE;
+                        }
+                        rled = 0.0;
+                        gled = 1.0;
+                        break;
+                        
+                        
+                    case TIMINGSTATE : {
+                        if(statetoggle){
+                            secondsCount = secondsCount + BUTTONTIME; 
+                        }                   
+                        rled = 1.0;
+                        gled = 0.0;
+                        break;
+                    }
+            }
+            
+            // Parse the seconds
+            seconds = (int)secondsCount; // make seconds "mask"
+            fifthSeconds = (int)((secondsCount - (float)seconds) * 10); // the 0.2 seconds
+            minutesCount = seconds / FULLMINUTE;
+            seconds = seconds % FULLMINUTE;          
+            sprintf (lcdData,"%1d.%02d.%1d",minutesCount,seconds,fifthSeconds);  
+            LCDMess(lcdData);            
+        }// end Button timer
     }
 }
\ No newline at end of file