Diff: mpr121.cpp

Revision:

5:2532f81cba87

Parent:

4:8952303a18be

--- a/mpr121.cpp	Tue Mar 14 23:40:15 2017 +0000
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,221 +0,0 @@
-/*
-Copyright (c) 2011 Anthony Buckton (abuckton [at] blackink [dot} net {dot} au)
- 
-Permission is hereby granted, free of charge, to any person obtaining a copy
-of this software and associated documentation files (the "Software"), to deal
-in the Software without restriction, including without limitation the rights
-to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-copies of the Software, and to permit persons to whom the Software is
-furnished to do so, subject to the following conditions:
- 
-The above copyright notice and this permission notice shall be included in
-all copies or substantial portions of the Software.
- 
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-THE SOFTWARE.
-*/
-
-#include <mbed.h>
-#include <sstream>
-#include <string>
-#include <list>
-
-#include <mpr121.h>
-    
-Mpr121::Mpr121(I2C *i2c, Address i2cAddress)
-{
-    this->i2c = i2c;
-    
-    address = i2cAddress;
-           
-    // Configure the MPR121 settings to default
-    this->configureSettings();
-}
-
-   
-void Mpr121::configureSettings()
-{
-    // Put the MPR into setup mode
-    this->write(ELE_CFG,0x00);
-    
-    // Electrode filters for when data is > baseline
-    unsigned char gtBaseline[] = {
-         0x01,  //MHD_R
-         0x01,  //NHD_R 
-         0x00,  //NCL_R
-         0x00   //FDL_R
-         };
-         
-    writeMany(MHD_R,gtBaseline,4);   
-                 
-     // Electrode filters for when data is < baseline   
-     unsigned char ltBaseline[] = {
-        0x01,   //MHD_F
-        0x01,   //NHD_F
-        0xFF,   //NCL_F
-        0x02    //FDL_F
-        };
-        
-    writeMany(MHD_F,ltBaseline,4);
-        
-    // Electrode touch and release thresholds
-    unsigned char electrodeThresholds[] = {
-        E_THR_T, // Touch Threshhold
-        E_THR_R  // Release Threshold
-        };
-
-    for(int i=0; i<12; i++){
-        int result = writeMany((ELE0_T+(i*2)),electrodeThresholds,2);
-    }   
-
-    // Proximity Settings
-    unsigned char proximitySettings[] = {
-        0xff,   //MHD_Prox_R
-        0xff,   //NHD_Prox_R
-        0x00,   //NCL_Prox_R
-        0x00,   //FDL_Prox_R
-        0x01,   //MHD_Prox_F
-        0x01,   //NHD_Prox_F
-        0xFF,   //NCL_Prox_F
-        0xff,   //FDL_Prox_F
-        0x00,   //NHD_Prox_T
-        0x00,   //NCL_Prox_T
-        0x00    //NFD_Prox_T
-        };
-    writeMany(MHDPROXR,proximitySettings,11);
-
-    unsigned char proxThresh[] = {
-        PROX_THR_T, // Touch Threshold
-        PROX_THR_R  // Release Threshold
-        };
-    writeMany(EPROXTTH,proxThresh,2); 
-       
-    this->write(FIL_CFG,0x04);
-    
-    // Set the electrode config to transition to active mode
-    this->write(ELE_CFG,0x0c);
-}
-
-void Mpr121::setElectrodeThreshold(int electrode, unsigned char touch, unsigned char release){
-    
-    if(electrode > 11) return;
-    
-    // Get the current mode
-    unsigned char mode = this->read(ELE_CFG);
-    
-    // Put the MPR into setup mode
-    this->write(ELE_CFG,0x00);
-    
-    // Write the new threshold
-    this->write((ELE0_T+(electrode*2)), touch);
-    this->write((ELE0_T+(electrode*2)+1), release);
-    
-    //Restore the operating mode
-    this->write(ELE_CFG, mode);
-}
-    
-    
-unsigned char Mpr121::read(int key){
-
-    unsigned char data[2];
-    
-    //Start the command
-    i2c->start();
-
-    // Address the target (Write mode)
-    int ack1= i2c->write(address);
-
-    // Set the register key to read
-    int ack2 = i2c->write(key);
-
-    // Re-start for read of data
-    i2c->start();
-
-    // Re-send the target address in read mode
-    int ack3 = i2c->write(address+1);
-
-    // Read in the result
-    data[0] = i2c->read(0); 
-
-    // Reset the bus        
-    i2c->stop();
-
-    return data[0];
-}
-
-
-int Mpr121::write(int key, unsigned char value){
-    
-    //Start the command
-    i2c->start();
-
-    // Address the target (Write mode)
-    int ack1= i2c->write(address);
-
-    // Set the register key to write
-    int ack2 = i2c->write(key);
-
-    // Read in the result
-    int ack3 = i2c->write(value); 
-
-    // Reset the bus        
-    i2c->stop();
-    
-    return (ack1+ack2+ack3)-3;
-}
-
-
-int Mpr121::writeMany(int start, unsigned char* dataSet, int length){
-    //Start the command
-    i2c->start();
-
-    // Address the target (Write mode)
-    int ack= i2c->write(address);
-    if(ack!=1){
-        return -1;
-    }
-    
-    // Set the register key to write
-    ack = i2c->write(start);
-    if(ack!=1){
-        return -1;
-    }
-
-    // Write the date set
-    int count = 0;
-    while(ack==1 && (count < length)){
-        ack = i2c->write(dataSet[count]);
-        count++;
-    } 
-    // Stop the cmd
-    i2c->stop();
-    
-    return count;
-}
-      
-
-bool Mpr121::getProximityMode(){
-    if(this->read(ELE_CFG) > 0x0c)
-        return true;
-    else
-        return false;
-}
-
-void Mpr121::setProximityMode(bool mode){
-    this->write(ELE_CFG,0x00);
-    if(mode){
-        this->write(ELE_CFG,0x30); //Sense proximity from ALL pads
-    } else {
-        this->write(ELE_CFG,0x0c); //Sense touch, all 12 pads active.
-    }
-}
-
-
-int Mpr121::readTouchData(){
-    return this->read(0x00);
-}
\ No newline at end of file