34 lines
1.2 KiB
C
34 lines
1.2 KiB
C
// Copyright 2015-2020 Espressif Systems (Shanghai) PTE LTD
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#pragma once
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#include "driver/adc.h"
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/**@{*/
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/**
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* Tie the ADC channel input to the middle (1.4V) by connecting both internal pullup and pulldown.
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*
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* `tie_middle`: 1.4v;
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* `tie_high` : 3.3v;
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* `tie_low` : 0v;
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*
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* @param adc_unit_t ADC unit.
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* @param adc_channel_t ADC channel.
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*/
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void adc_fake_tie_middle(adc_unit_t adc_unit, adc_channel_t channel);
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void adc_fake_tie_high(adc_unit_t adc_unit, adc_channel_t channel);
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void adc_fake_tie_low(adc_unit_t adc_unit, adc_channel_t channel);
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void adc_io_normal(adc_unit_t adc_unit, adc_channel_t channel);
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/**@}*/ |