42 lines
1.7 KiB
C
42 lines
1.7 KiB
C
/* Reflow Oven Controller
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*
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* Copyright (C) 2020 Mario Hüttel <mario.huettel@gmx.net>
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*
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* This file is part of the Reflow Oven Controller Project.
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*
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* The reflow oven controller is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* GDSII-Converter 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 the reflow oven controller project.
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* If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef __TEMP_CONVERTER_H__
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#define __TEMP_CONVERTER_H__
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/**
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* @brief Convert PT1000 resistance to temperature in degrees celsius
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* @param resistance PT1000 resistance value
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* @param[out] temp_out Temperature output
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* @return 0 if ok, -1 if value is below conversion range, 1 if value is above conversion range,-1000 in case of pointer error
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*/
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int temp_converter_convert_resistance_to_temp(float resistance, float *temp_out);
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/**
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* @brief Convert temperature to PT1000 resistance
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* @param temp Temperature in degrees celsius
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* @param[out] resistance_out Resistance value
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* @return 0 if ok, -1 if tmeperature is below the lookup table, 1 if value is above the lookup table, -1000 in case of a pointer error,
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* -100 if an internal error occured. This should never happen, if the lookup table is correct
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*/
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int temp_converter_convert_temp_to_resistance(float temp, float *resistance_out);
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#endif /* __TEMP_CONVERTER_H__ */
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