Diff: acc_341.cpp

Revision:

6:7dd868f0d3b8

Parent:

5:29c6ba524263

--- a/acc_341.cpp	Mon Nov 14 15:50:33 2016 +0000
+++ b/acc_341.cpp	Mon Nov 28 00:21:41 2016 +0000
@@ -12,7 +12,15 @@
 #define DATAINTERVAL 0.200
 #define LCDDATALEN 10
 
+#define LCDWAIT 1.5
+
+#define NUMBUTS 1
+#define LBUT PTC12  // port addresses for buttons
+//#define RBUT PTC3
+#define BUTTONTIME 0.1
+
 #define PROGNAME "ACCLCD341-541\r\n"
+#define LCDTIME 1.5
 
 #define PRINTDBUG
 // 
@@ -35,7 +43,15 @@
 Serial pc(USBTX, USBRX);
 Timer dataTimer;
 
-   
+Timer ButtonTimer; // for reading button states
+Timer LCDTimer;
+
+DigitalIn buttons[NUMBUTS] = {LBUT};
+
+char axisName[3] = {'X', 'Y', 'Z'};
+
+int currentAxis;
+int displayState;
 
 void LCDMess(char *lMess){
         slcd.Home();
@@ -46,13 +62,22 @@
 void LCDsignedFloat(float theNumber){
     sprintf (lcdData," %3.2f",theNumber); 
     if (theNumber < 0.0) sprintf (lcdData,"<%3.2f",fabs(theNumber));   
-    LCDMess(lcdData); 
+    LCDMess(lcdData);
 } 
 
 void initialize_global_vars(){
     pc.printf(PROGNAME);
     dataTimer.start();
-    dataTimer.reset(); 
+    dataTimer.reset();
+    
+    ButtonTimer.start();
+    ButtonTimer.reset();
+    
+    currentAxis = 0;
+    displayState = 0;
+    
+//    LCDTimer.start();
+//    LCDTimer.reset();
 } 
 
 int main() {
@@ -76,8 +101,68 @@
         pc.printf("zAcc = %f\r\n", zAcc);
 #endif
 
-        LCDsignedFloat(xAcc);
+while (true) {
+        if (ButtonTimer > BUTTONTIME){
+            //float count = 0;
+            for (int i=0; i<NUMBUTS; i++){ // index will be 0 or 1 
+                if(!buttons[0]) { 
+                pc.printf("Left Button Clicked");
+                //char ch_ds = displayState;
+                //pc.printf("displayState = " + ch_ds);
+                    displayState++;
+                    if(displayState > 3)
+                        displayState = 1;
+                    // do something here.
+                                    switch (displayState) {
+                        case 1:
+                            pc.printf("Case1");
+//                            currentAxis = xAcc;
+                            currentAxis = displayState - 1;
+//                            LCDMess((char*)axisName[currentAxis]);
+                            slcd.clear();
+                            slcd.putc('X');
+                            wait(LCDWAIT);
+                            xAcc = acc.getAccX();
+                            LCDsignedFloat(xAcc);
+                            break;
+                        case 2:
+                            pc.printf("Case2");
+//                            currentAxis = yAcc;
+                            currentAxis = displayState - 1;
+//                            LCDMess((char*)axisName[currentAxis]);
+                            slcd.clear();
+                            slcd.putc('Y');
+                            wait(LCDWAIT);
+                            yAcc = acc.getAccY();
+                            LCDsignedFloat(yAcc);
+                            break;
+                        case 3:
+                            pc.printf("Case3");
+//                            currentAxis = zAcc;
+                            currentAxis = displayState - 1;
+//                            LCDMess((char*)axisName[currentAxis]);
+                            slcd.clear();
+                            slcd.putc('Z');
+                            wait(LCDWAIT);
+                            zAcc = acc.getAccZ();
+                            LCDsignedFloat(zAcc);
+                            break;
+                        default:
+//                            currentAxis = xAcc;
+                            xAcc = acc.getAccX();
+                            LCDsignedFloat(xAcc);
+                            break;
+                        }
+                } // if ! buttons
+            }// for loop to look at buttons
+            ButtonTimer.reset();   
+        }
+
+
+    }
+}
+
 // Wait then do the whole thing again.
-       }
+//       }
     }
 }
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