src/libs/Adc.cpp

   1 /*
   2       This file is part of Smoothie (http://smoothieware.org/). The motion control part is heavily based on Grbl (https://github.com/simen/grbl).
   3       Smoothie is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
   4       Smoothie is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
   5       You should have received a copy of the GNU General Public License along with Smoothie. If not, see <http://www.gnu.org/licenses/>.
   6 */
   7
   8 using namespace std;
   9 #include <vector>
  10 #include "libs/nuts_bolts.h"
  11 #include "libs/Module.h"
  12 #include "libs/Kernel.h"
  13 #include "Adc.h"
  14 #include "libs/ADC/adc.h"
  15 #include "libs/Pin.h"
  16
  17 // This is an interface to the mbed.org ADC library you can find in libs/ADC/adc.h
  18 // TODO : Having the same name is confusing, should change that
  19
  20 Adc::Adc(){
  21     this->adc = new ADC(1000, 1);
  22 }
  23
  24 // Enables ADC on a given pin
  25 void Adc::enable_pin(Pin* pin){
  26     PinName pin_name = this->_pin_to_pinname(pin);
  27     this->adc->burst(1);
  28     this->adc->setup(pin_name,1);
  29     this->adc->interrupt_state(pin_name,1);
  30 }
  31
  32 // Read the last value ( burst mode ) on a given pin
  33 unsigned int Adc::read(Pin* pin){
  34     return this->adc->read(this->_pin_to_pinname(pin));
  35 }
  36
  37 // Convert a smoothie Pin into a mBed Pin
  38 PinName Adc::_pin_to_pinname(Pin* pin){
  39     if( pin->port == LPC_GPIO0 && pin->pin == 23 ){
  40         return p15;
  41     }else if( pin->port == LPC_GPIO0 && pin->pin == 24 ){
  42         return p16;
  43     }else if( pin->port == LPC_GPIO0 && pin->pin == 25 ){
  44         return p17;
  45     }else if( pin->port == LPC_GPIO0 && pin->pin == 26 ){
  46         return p18;
  47     }else if( pin->port == LPC_GPIO1 && pin->pin == 30 ){
  48         return p19;
  49     }else if( pin->port == LPC_GPIO1 && pin->pin == 31 ){
  50         return p20;
  51     }else{
  52         //TODO: Error
  53         return NC;
  54     }
  55 }
  56