main.cpp

00001 /* Copyright 2011 Adam Green (http://mbed.org/users/AdamGreen/)
00002 
00003    Licensed under the Apache License, Version 2.0 (the "License");
00004    you may not use this file except in compliance with the License.
00005    You may obtain a copy of the License at
00006 
00007        http://www.apache.org/licenses/LICENSE-2.0
00008 
00009    Unless required by applicable law or agreed to in writing, software
00010    distributed under the License is distributed on an "AS IS" BASIS,
00011    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
00012    See the License for the specific language governing permissions and
00013    limitations under the License.
00014 */
00015 /* Interfaces to a Sparkfun Blackberry Trackball Breakout Board and uses mbed's
00016    USBMouse class to make it look like a mouse to a PC.  Uses the trackball
00017    motion to move the mouse pointer, pushing down on the trackball will trigger
00018    a microswitch which will act as a left button click, and the LEDs under the
00019    trackball will be lit different colours depending on what the user is
00020    currently doing with the device (red for no motion, green when the trackball
00021    is being moved, and blue during button clicks).  It does use some other
00022    utility classes from acceleration.h to provide acceleration to the trackball
00023    motion.
00024 */
00025 #include <mbed.h>
00026 #include <USBMouse.h>
00027 #include "acceleration.h"
00028 
00029 
00030 
00031 int main() 
00032 {
00033     static USBMouse                 Mouse;
00034     static CAcceleratedTrackball    Trackball(p20,  // BLU
00035                                               p25,  // RED
00036                                               p26,  // GRN
00037                                               p10,  // WHT
00038                                               p5,   // UP
00039                                               p6,   // DWN
00040                                               p7,   // LFT
00041                                               p8,   // RHT
00042                                               p9);  // BTN
00043     
00044     for(;;)
00045     {
00046         int DeltaX;
00047         int DeltaY;
00048         int ButtonPressed;        
00049         
00050         Trackball.GetState(DeltaX, DeltaY, ButtonPressed);
00051 
00052         Mouse.update(DeltaX, 
00053                      DeltaY, 
00054                      ButtonPressed ? MOUSE_LEFT : 0, 
00055                      0);
00056     }
00057 }