Revision 6:e35a1f72d90f, committed 2013-07-17

Comitter:

jakowisp

Date:

Wed Jul 17 02:00:07 2013 +0000

Parent:

5:2a28b4664b0a

Commit message:

USB Device Interface: Architecture, Protocols, and Programing:; Homework#2 Problem #3

Changed in this revision

--- a/main.cpp	Wed Jun 26 03:00:13 2013 +0000
+++ b/main.cpp	Wed Jul 17 02:00:07 2013 +0000
@@ -1,32 +1,39 @@
 #include "mbed.h"
 #include "USBMouse.h"
 
+struct positionXY {
+   int x;
+   int y;
+   }  mousePosition;
+
 USBMouse mouse(ABS_MOUSE);
 AnalogIn potA(p20);
 AnalogIn potB(p19);
 
-BusIn button(p12,p15,p13,p16);
-DigitalIn fire(p14);
+BusIn button(p12,p15,p13);
 int lastButtonState=0,buttonChanged=0,buttonState=0;
 
-float x,y; 
+void DetermineMousePressReleaseAndSend(int buttonState) {
+    buttonChanged =  buttonState ^ lastButtonState;
+    mouse.press(buttonState & buttonChanged);
+    mouse.release(!buttonState & buttonChanged);
+}
 
+int ReadAnalogValueAndShift(AnalogIn *pot) {
+      return  pot->read_u16() >> 1;
+}   
+
+void DetermineXAndY(struct positionXY *position) {
+    position->x=  ReadAnalogValueAndShift(&potA);
+    position->y=  ReadAnalogValueAndShift(&potB);     
+}
 
 int main() {
     while (1) {
-    #ifdef FLOATPOT
-        x= 0x7fff * potA.read();
-        y= 0x7fff * potB.read();
-    #else
-        x=  ( potA.read_u16() & 0xfff0 ) >> 1;
-        y=  ( potB.read_u16() & 0xfff0 ) >> 1;  
-    #endif   
+        DetermineXAndY(&mousePosition);
+        mouse.move(mousePosition.x, mousePosition.y);
         buttonState =  button.read() & 0x7;
-        buttonChanged =  buttonState ^ lastButtonState;
-        mouse.move(x, y);
-        mouse.press(buttonState & buttonChanged);
-        mouse.release(!buttonState & buttonChanged);
-        
+        DetermineMousePressReleaseAndSend(buttonState);
         wait(0.001);
     }
-}
\ No newline at end of file
+}