Diff: main.cpp

Revision:

0:23505376c0c6

Child:

1:4a283472ac8e

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Wed Sep 07 18:40:05 2016 +0000
@@ -0,0 +1,85 @@
+#include "mbed.h"
+#include "SLCD.h"
+
+#define LEDON false
+#define LEDOFF true
+#define NUMBUTS 2
+#define LBUT PTC12  // port addresses for buttons
+#define RBUT PTC3
+#define BLINKTIME 0.5 // in seconds //CKM: changed blinktime to 500 ms (0.5) from 0.3 (300 ms)
+#define BUTTONTIME 0.2
+#define LCDCHARLEN 25 //CKM: changed character length to 25 for character array 
+#define NUMMESS 2
+#define LRED "RED"
+#define LGREEN "GREN"
+#define PRED "RED BUTTON PUSHED\r\n" //CKM: changed serial output #DEFINE to "RED BUTTON PUSHED"
+#define PGREEN "GREEN BUTTON PUSHED\r\n" //CKM: changed serial output #DEFINE to "GREEN BUTTON PUSHED"
+#define PROGNAME "blink_kl46z_buttton LCD v2\r\n"
+
+// slightly more interesting blinky 140814 sc
+SLCD slcd; //define LCD display
+
+// Timer to elliminate wait() function
+Timer LEDTimer; // for blinking LEDs
+Timer ButtonTimer; // for reading button states
+
+bool ledState = LEDON;
+
+DigitalIn buttons[NUMBUTS] = {RBUT, LBUT};
+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;    
+    }
+}
+ 
+void LCDMess(char *lMess){
+        slcd.Home();
+        slcd.clear();
+        slcd.printf(lMess);
+}
+
+void initialize_global_vars(){
+    pc.printf(PROGNAME);
+    // set up DAQ timers
+    ButtonTimer.start();
+    ButtonTimer.reset();
+    LEDTimer.start();
+    LEDTimer.reset();  
+    allLEDsOff();
+} 
+// --------------------------------
+ int main() {
+    int i; 
+    int currentLED = 0;
+    char rMess[NUMMESS][LCDCHARLEN]={LGREEN, LRED}; // for LCD
+    char pMess[NUMMESS][LCDCHARLEN]={PRED, PGREEN}; // for pc serial port
+
+    initialize_global_vars(); //keep things organized
+    LEDs[currentLED] = LEDON;
+    LCDMess(rMess[currentLED]);
+    pc.printf(pMess[currentLED]);
+// End of setup
+    while(true) {
+        if (ButtonTimer > BUTTONTIME){
+            for (i=0; i<NUMBUTS; i++){ // index will be 0 or 1 
+                if(!buttons[i]) { 
+                    allLEDsOff();  
+                    LCDMess(rMess[i]);
+                    pc.printf(pMess[i]); 
+                    currentLED = i;
+                } // if ! buttons
+            }// for loop to look at buttons
+            ButtonTimer.reset();
+        }
+        if(LEDTimer.read() > BLINKTIME){
+            LEDTimer.reset();               
+            ledState = !ledState; // Flip the general state
+            LEDs[currentLED] = ledState;
+        }
+    // Do other things here between times of reading and flashing
+    }
+}
\ No newline at end of file