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98 lines
2.8 KiB
98 lines
2.8 KiB
/*
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MIT License
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Copyright (c) 2019 Edwin Koch
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in all
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copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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SOFTWARE.
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*/
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#ifndef MAX31865_H_
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#define MAX31865_H_
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#include <stdint.h>
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#include "pin.h"
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#include "spi.h"
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typedef void (*fptr_t)(void);
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typedef uint8_t (*u8_fptr_u8_t)(uint8_t);
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typedef enum{
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max31865_err_VOLTAGE_FAULT = 0x04,
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max31865_err_VRTDIN_TO_LOW = 0x08,
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max31865_err_VREFIN_TO_LOW = 0x10,
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max31865_err_VREFIN_TO_HIGH = 0x20,
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max31865_err_RTD_LOW_THRESHOLD = 0x40,
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max31865_err_RTD_HIGH_THRESHOLD = 0x80
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}max31865_err_t;
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typedef struct{
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spi_ch_t *spiCH;
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fptr_t charged_time_delay;
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fptr_t conversion_timer_deay;
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fptr_t highFaultThreshold_cb;
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fptr_t lowFaultThreshold_cb;
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uint16_t rtd;
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uint16_t rref;
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uint16_t lowFaultThreshold;
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uint16_t highFaultThreshold;
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uint8_t configReg;
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}max31865_t;
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void max31865_init(
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max31865_t* device,
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spi_ch_t *spi_ch,
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fptr_t charged_time_delay_cb,
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fptr_t conversion_timer_deay_cb,
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fptr_t highFaultThreshold_callback,
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fptr_t lowFaultThreshold_callback,
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uint16_t rtd_ohm,
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uint16_t rref_ohm,
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uint16_t lowerFaulThreshold,
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uint16_t higherFaultThreshold,
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uint8_t logic_wire_3,
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uint8_t logic_filter_50Hz);
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uint16_t max31865_readADC(
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const max31865_t *device);
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float max31865_readRTD_ohm(
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const max31865_t *device);
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float max31865_readCelsius(
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const max31865_t *device);
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void max31865_setHighFaultThreshold(
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max31865_t *device,
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uint16_t hreshold);
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void max31865_setLowFaultThreshold(
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max31865_t *device,
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uint16_t threshold);
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int8_t max31865_checkThresholdFault(
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const max31865_t *device);
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uint8_t max31865_readFault(
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const max31865_t *device);
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void max31865_clearFault(
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const max31865_t *device);
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#endif /* MAX31865_H_ */
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