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ads1x15: initial commit for ads1x15 adc

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Initial commit of ADS1x15 adc converter. Support for both ADS1015 12 bit
and ADS1115 16 bit  adc.
--signoff
Signed-off-by: Marc Graham <marc@m2ag.net>

Signed-off-by: Mihai Tudor Panu <mihai.tudor.panu@intel.com>
This commit is contained in:
Marc Graham
2015-12-01 14:57:34 -08:00
committed by Mihai Tudor Panu
parent d0cb2a032c
commit 4259aeab7b
15 changed files with 1538 additions and 0 deletions
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102
src/ads1x15/ads1015.cxx Normal file
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/*
* Author: Marc Graham <marc@m2ag.net>
* Copyright (c) 2015 Intel Corporation.
*
* 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 "ads1015.h"
using namespace upm;
void
ADS1015::setSPS(ADSSAMPLERATE rate){
updateConfigRegister((m_config_reg & ~ADS1X15_DR_MASK) | rate);
}
ADS1015::ADS1015(int bus, uint8_t address) : ADS1X15(bus, address) {
m_name = "ADS1015";
m_conversionDelay = ADS1015_CONVERSIONDELAY;
m_bitShift = 4;
ADS1X15::getCurrentConfig();
}
ADS1015::~ADS1015(){};
//Private functions
float
ADS1015::getMultiplier(void){
float multi = 0.0;
switch((ADSGAIN)m_config_reg & ADS1X15_PGA_MASK){
case GAIN_TWOTHIRDS:
multi = 0.003;
break;
case GAIN_ONE:
multi = 0.002;
break;
case GAIN_TWO:
multi = 0.001;
break;
case GAIN_FOUR:
multi = 0.0005;
break;
case GAIN_EIGHT:
multi = 0.00025;
break;
case GAIN_SIXTEEN:
multi = 0.000125;
break;
default:
multi = 0.001;
break;
}
return multi;
}
void
ADS1015::setDelay(){
switch((int)ADS1X15::getSPS()){
case 0:
m_conversionDelay = 8000;
break;
case 32:
m_conversionDelay = 4000;
break;
case 64:
m_conversionDelay = 3000;
break;
case 96:
m_conversionDelay = 1100;
break;
case 128:
m_conversionDelay = 700;
break;
case 160:
m_conversionDelay = 500;
break;
case 192:
m_conversionDelay = 400;
break;
default:
m_conversionDelay = 8000;
break;
}
}