main.cpp

00001 /*
00002 Copyright (c) 2011 Anthony Buckton (abuckton [at] blackink [dot} net {dot} au)
00003  
00004 Permission is hereby granted, free of charge, to any person obtaining a copy
00005 of this software and associated documentation files (the "Software"), to deal
00006 in the Software without restriction, including without limitation the rights
00007 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
00008 copies of the Software, and to permit persons to whom the Software is
00009 furnished to do so, subject to the following conditions:
00010  
00011 The above copyright notice and this permission notice shall be included in
00012 all copies or substantial portions of the Software.
00013  
00014 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
00015 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
00016 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
00017 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
00018 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
00019 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
00020 THE SOFTWARE.
00021 */
00022 
00023 #include <mbed.h>
00024 #include <string>
00025 #include <list>
00026 
00027 #include <mpr121.h>
00028 
00029 // Create the interrupt receiver object on pin 26
00030 InterruptIn interrupt(p26);
00031 
00032 // Setup the Serial to the PC for debugging
00033 Serial pc(USBTX, USBRX);
00034 
00035 // Setup the i2c bus on pins 28 and 27
00036 I2C i2c(p28, p27);
00037 
00038 // Setup the Mpr121:
00039 // constructor(i2c object, i2c address of the mpr121)
00040 Mpr121 mpr121(&i2c, Mpr121::ADD_VSS);
00041     
00042 void fallInterrupt(){
00043     int value=mpr121.read(0x00);
00044     value +=mpr121.read(0x01)<<8;
00045     pc.printf("MPR value: %x \r\n", value);
00046 }
00047     
00048 int main() {
00049 
00050     pc.printf("\nHello from the mbed & mpr121\n\r");
00051     
00052     unsigned char dataArray[2];
00053     int key;
00054     int count = 0;
00055 
00056     pc.printf("Test 1: read a value: \r\n");
00057     dataArray[0] = mpr121.read(AFE_CFG);
00058     pc.printf("Read value=%x\r\n\n",dataArray[0]);
00059     
00060     pc.printf("Test 2: read a value: \r\n");
00061     dataArray[0] = mpr121.read(0x5d);
00062     pc.printf("Read value=%x\r\n\n",dataArray[0]);
00063 
00064     pc.printf("Test 3: write & read a value: \r\n");
00065     mpr121.read(ELE0_T);
00066     mpr121.write(ELE0_T,0x22);
00067     dataArray[0] = mpr121.read(ELE0_T);
00068     pc.printf("Read value=%x\r\n\n",dataArray[0]);
00069     
00070     pc.printf("Test 4: Write many values: \r\n");
00071     unsigned char data[] = {0x1,0x3,0x5,0x9,0x15,0x25,0x41};
00072     mpr121.writeMany(0x42,data,7);
00073     
00074     // Now read them back ..
00075     key = 0x42;
00076     count = 0;
00077     while(count < 7){
00078         char result = mpr121.read(key);
00079         key++;
00080         count++;
00081         pc.printf("Read value: '%x'=%x\n\r",key,result);
00082     }
00083     
00084     pc.printf("Test 5: Read Electrodes:\r\n");
00085     key = ELE0_T;
00086     count = 0;
00087     while(count < 24){
00088         char result = mpr121.read(key);
00089         pc.printf("Read key:%x value:%x\n\r",key,result);
00090         key++;
00091         count++;    }
00092     pc.printf("--------- \r\n\n");
00093     
00094    // mpr121.setProximityMode(true);
00095     
00096     pc.printf("ELE_CFG=%x", mpr121.read(ELE_CFG));
00097     
00098     interrupt.fall(&fallInterrupt);
00099     interrupt.mode(PullUp);
00100     
00101     while(1){
00102         wait(5);
00103         pc.printf(".");
00104     }
00105 }
00106 
00107 
00108