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/* *****************************************************************************
* This program 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.
*
* This program 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.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* Created: 12/18/09 02:41:55
* Copyright (c) 2009 Perry L. Hung. All rights reserved.
*
* ****************************************************************************/
/**
* @file wiring_analog.c
*
* @brief
*/
#include "libmaple.h"
#include "wiring.h"
#include "adc.h"
/* Indexed by pins A[0-15] */
uint32_t PIN_TO_ADC[NR_ANALOG_PINS] = {
10, // A0/D14 ADC10
11, // A1/D15 ADC11
12, // A2/D16 ADC12
13, // A3/D17 ADC13
14, // A4/D18 ADC14
15, // A5/D19 ADC15
3, // A6/D0 ADC3
2, // A7/D1 ADC2
0, // A8/D2 ADC0
1, // A9/D3 ADC1
4, // A10/D10 ADC4
7, // A11/D11 ADC7
6, // A12/D12 ADC6
5, // A13/D13 ADC5
8, // A14/D26 ADC8
9, // A15/D11 ADC9
};
/* Assumes that the ADC has been initialized and
* that the pin is set to ANALOG_INPUT */
uint32_t analogRead(uint8_t pin) {
if (pin >= NR_ANALOG_PINS)
return 0;
return adc_read(PIN_TO_ADC[pin]);
}
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