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53 lines
1.4 KiB
C
53 lines
1.4 KiB
C
/*
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* adc.h
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*
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* Copyright 2015 Edward V. Emelianov <eddy@sao.ru, edward.emelianoff@gmail.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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* MA 02110-1301, USA.
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*/
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#pragma once
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#ifndef __SHARP_H__
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#define __SHARP_H__
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#include <stdint.h>
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extern uint16_t ADC_value[];
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extern uint16_t ADC_trig_val[];
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typedef enum{
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ADWD_LOW, // watchdog at low-level
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ADWD_MID, // normal state
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ADWD_HI // watchdog at high-level
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} adwd_stat;
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extern adwd_stat adc_status[];
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#define ADC_CHANNEL_NUMBER (2)
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// something near
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#define ADC_WDG_HIGH ((uint16_t)1500)
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// nothing in front of sensor
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#define ADC_WDG_LOW ((uint16_t)700)
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// threshold above levels
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#define ADC_WDG_THRES ((uint16_t)200)
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void init_adc_sensor();
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void poll_ADC();
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#endif // __SHARP_H__
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