mirror of
https://github.com/eddyem/stm32samples.git
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87 lines
2.6 KiB
C
87 lines
2.6 KiB
C
/*
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* This file is part of the ir-allsky project.
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* Copyright 2025 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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#pragma once
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#include <stm32f3.h>
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#define USBPU_port GPIOA
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#define USBPU_pin (1<<15)
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#define USBPU_ON() pin_clear(USBPU_port, USBPU_pin)
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#define USBPU_OFF() pin_set(USBPU_port, USBPU_pin)
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// SPI_CS - PB9
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#define SPI_CS_1() pin_set(GPIOB, 1<<9)
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#define SPI_CS_0() pin_clear(GPIOB, 1<<9)
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// interval of environment measurements, ms
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#define ENV_MEAS_PERIOD (10000)
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// heater check period, ms
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#define HTR_CHECK_PERIOD (10000)
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// temperature hysteresis (+-hyst from holding value)
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#define HOLDT_HYSTERESIS (5.f)
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// environment for auto-heater
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// maximal humidity
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#define HUMIDITY_MAX (90.f)
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// delta over dew point
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#define TDEW_OVER_DELTA (7.f)
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// defrosting temperature (when there's very cold)
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#define TEMP_DEFROST (5.f)
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// PWM starting value (up to reaching holding T)
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#define PWM_START_VAL (100)
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// middle value
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#define PWM_MID_VAL (50)
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// PWM holding value (up to setTemp+Thyst)
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#define PWM_HOLD_VAL (10)
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// External heater PWM: TIM3_CH1 or TIM16_CH1
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// Max PWM CCR1 value (->1)
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#define PWM_CCR_MAX (100)
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// amount of heaters
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#define HTR_AMOUNT (2)
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// PWM channels (start from 0 - CH1)
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#define PWM_CH_HTR(x) (x)
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// propto external T (the higher - the brighter)
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#define PWM_CH_TEXT (2)
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// propto Tsky - Text (the higher - the brighter)
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#define PWM_CH_TSKY (3)
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#define PWM_CH_MAX (3)
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// amount of T channels
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#define NTC_AMOUNT (4)
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typedef struct{
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float T; // temperature, degC
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float Tdew; // dew point, degC
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float P; // pressure, Pa
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float H; // humidity, percents
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float Tsky; // mean Tsky, degC
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uint32_t Tmeas; // time of measurement
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} bme280_t;
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extern volatile uint32_t Tms;
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extern uint8_t AutoHeater;
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void hw_setup();
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int bme_init();
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void bme_process();
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int get_environment(bme280_t *env);
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int setPWM(uint8_t ch, uint8_t val);
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