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https://github.com/eddyem/stm32samples.git
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56 lines
1.7 KiB
C
56 lines
1.7 KiB
C
/*
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* This file is part of the Chiller project.
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* Copyright 2019 Edward V. Emelianov <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 3 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, see <http://www.gnu.org/licenses/>.
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*/
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#include "stm32f0.h"
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// temperature setpoint
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extern int16_t Tset;
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// temperatures of NTC
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extern int16_t NTCval[4];
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// meaning of each array member: in/out, heater and air
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#define TI_IDX (0)
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#define TO_IDX (1)
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#define TH_IDX (2)
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#define TA_IDX (3)
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#define INPUT_TEMPERATURE NTCval[TI_IDX]
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#define OUTPUT_TEMPERATURE NTCval[TO_IDX]
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#define HEATER_TEMPERATURE NTCval[TH_IDX]
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#define AIR_TEMPERATURE NTCval[TA_IDX]
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/* status bits */
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// ==1 if no changes
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#define ST_OK (1<<0)
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// (ST_OK=0) == 1 if moving faster (or hotter), 0 if slower (or cooler)
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#define ST_FASTER (1<<1)
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// turn OFF
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#define ST_OFF (1<<2)
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// critical error
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#define ST_CRITICAL (1<<7)
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/* chiller status codes */
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typedef struct{
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uint8_t common_state; // common state != ST_OK if some other states changed
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uint8_t heater_state;
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uint8_t cooler_state;
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uint8_t pump_state;
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} chiller_state;
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chiller_state *mainloop();
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