Revision 7:8f64ad5334ca, committed 2015-10-12

Comitter:

sim1sgl

Date:

Mon Oct 12 03:19:22 2015 +0000

Parent:

6:a109f45fae66

Commit message:

Simple button and slider command to PC program, adapted from the KL46Z button with interrupt made by Stan

Changed in this revision

--- a/main.cpp	Sun Sep 27 23:28:00 2015 +0000
+++ b/main.cpp	Mon Oct 12 03:19:22 2015 +0000
@@ -10,10 +10,9 @@
 #define LBUTINDEX 1
 #define LBUT PTC12  // port addresses for buttons
 #define RBUT PTC3
-#define BLINKTIME 0.3 // in seconds
-#define DATATIME    50 //milli seccnds
+#define DATATIME    200 //milliseconds
 #define LCDLEN      10
-#define PROGNAME "blink_kl46z_buttton interrupt slider\r\n"
+#define PROGNAME "kl46z_btn_slider_toSerial\r\n"
 
 // Cap slider interface
 SLCD slcd; //define LCD display
@@ -21,46 +20,22 @@
 TSISensor tsiScaling; // Capacitive sensor/slider
 Timer dataTimer;
 
-// Timer to elliminate wait() function
-// Timer LEDTimer; // for blinking LEDs
-Ticker Blinker;
-
-//Timer ButtonTimer; // no longer needed
 // Button interrrupts
-InterruptIn rtButton(RBUT); // Big change.
+InterruptIn rtButton(RBUT);
 InterruptIn lfButton(LBUT); 
 
 char lcdData[LCDLEN];
-bool ledState = LEDON;
-int currentLED = 0;  // used in LEDBliker interrupt 
 
-// DigitalIn buttons[NUMBUTS] = {RBUT, LBUT};  This array paradigm will not work right now.
-DigitalOut LEDs[NUMBUTS] = {LED_GREEN, LED_RED};
-Serial pc(USBTX, USBRX);// set up USB as communicationis to Host PC via USB connectons
-
-void allLEDsOff(){
-    int i;
-    for (i=0; i<NUMBUTS; i++){ 
-        LEDs[i] = LEDOFF;    
-    }
-}
+Serial pc(USBTX, USBRX);// set up USB as communications to Host PC via USB connectons
  
 // Interrupt service routines
-
 void rtButtonPressed(){
-    allLEDsOff();  
-    currentLED = RBUTINDEX;
+    pc.printf("button: right\r\n");
 }
 
 void lfButtonPressed(){
-    allLEDsOff();  
-    currentLED = LBUTINDEX;
+    pc.printf("button: left \r\n");
 }
-
-void LEDBlinker(){           
-            ledState = !ledState; // Flip the general state
-            LEDs[currentLED] = ledState;
-        }
         
 // End interrupt routines
 
@@ -71,41 +46,35 @@
         slcd.printf(lMess);
 } 
 
-
-void initialize_global_vars(){
-    pc.printf(PROGNAME);
-    // set up DAQ timers
-    allLEDsOff();
-} 
 // --------------------------------
  int main() {
-    float sliderValue=0.0;
-    // int currentLED = 0;  needs to be gobal for interrupt routine
+    float sliderValue = 0.0;
     
-    initialize_global_vars(); //keep things organized
-    LEDs[currentLED] = LEDON;
+    pc.printf(PROGNAME);
     dataTimer.start();
     dataTimer.reset(); 
     sprintf (lcdData,"%4.3f",0.0);
     LCDMessNoDwell(lcdData);
     
 // Interrupt routine setups
-    Blinker.attach(&LEDBlinker, BLINKTIME);
     rtButton.fall(&rtButtonPressed);
     lfButton.fall(&lfButtonPressed);
     
 // End of setup
 
     while(true) {
-    // All in the interrupts
+    // All the interrupts
         
-    // Do other things here between times of reading and flashing
-    // OK
-    sliderValue = tsiScaling.readPercentage();
         if (dataTimer.read_ms() > DATATIME){
-            if(sliderValue > 0.0) {
-                sprintf (lcdData,"%4.3f",sliderValue);  // Just to amke things user readable
+            // Read the slider value
+            float newSliderValue = tsiScaling.readPercentage();
+            // Only do stuff with it if it's a new value or if it's not zero
+            if(newSliderValue > 0.0 && newSliderValue != sliderValue) {
+                sliderValue = newSliderValue;
+                sprintf (lcdData,"%4.3f", sliderValue);  // Just to make things user readable
+                
                 LCDMessNoDwell(lcdData);
+                pc.printf("slider: %4.3f\r\n", sliderValue);
             }
             dataTimer.reset(); 
         }