126 lines
4.4 KiB
C
126 lines
4.4 KiB
C
/**
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* Copyright (C) 2021 Bosch Sensortec GmbH
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*
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*/
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#include <stdio.h>
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#include "bme68x.h"
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#include "common.h"
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#include "coines.h"
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/***********************************************************************/
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/* Macros */
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/***********************************************************************/
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/* Macro for count of samples to be displayed */
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#define SAMPLE_COUNT UINT8_C(300)
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/***********************************************************************/
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/* Test code */
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/***********************************************************************/
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int main(void)
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{
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struct bme68x_dev bme;
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int8_t rslt;
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struct bme68x_conf conf;
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struct bme68x_heatr_conf heatr_conf;
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struct bme68x_data data[3];
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uint32_t del_period;
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uint32_t time_ms = 0;
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uint8_t n_fields;
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uint16_t sample_count = 1;
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/* Heater temperature in degree Celsius */
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uint16_t temp_prof[10] = { 200, 240, 280, 320, 360, 360, 320, 280, 240, 200 };
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/* Heating duration in milliseconds */
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uint16_t dur_prof[10] = { 100, 100, 100, 100, 100, 100, 100, 100, 100, 100 };
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/* Interface preference is updated as a parameter
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* For I2C : BME68X_I2C_INTF
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* For SPI : BME68X_SPI_INTF
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*/
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rslt = bme68x_interface_init(&bme, BME68X_I2C_INTF);
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bme68x_check_rslt("bme68x_interface_init", rslt);
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rslt = bme68x_init(&bme);
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bme68x_check_rslt("bme68x_init", rslt);
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/* Check if rslt == BME68X_OK, report or handle if otherwise */
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rslt = bme68x_get_conf(&conf, &bme);
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bme68x_check_rslt("bme68x_get_conf", rslt);
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/* Check if rslt == BME68X_OK, report or handle if otherwise */
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conf.filter = BME68X_FILTER_OFF;
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conf.odr = BME68X_ODR_NONE; /* This parameter defines the sleep duration after each profile */
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conf.os_hum = BME68X_OS_16X;
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conf.os_pres = BME68X_OS_1X;
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conf.os_temp = BME68X_OS_2X;
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rslt = bme68x_set_conf(&conf, &bme);
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bme68x_check_rslt("bme68x_set_conf", rslt);
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/* Check if rslt == BME68X_OK, report or handle if otherwise */
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heatr_conf.enable = BME68X_ENABLE;
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heatr_conf.heatr_temp_prof = temp_prof;
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heatr_conf.heatr_dur_prof = dur_prof;
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heatr_conf.profile_len = 10;
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rslt = bme68x_set_heatr_conf(BME68X_SEQUENTIAL_MODE, &heatr_conf, &bme);
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bme68x_check_rslt("bme68x_set_heatr_conf", rslt);
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/* Check if rslt == BME68X_OK, report or handle if otherwise */
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rslt = bme68x_set_op_mode(BME68X_SEQUENTIAL_MODE, &bme);
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bme68x_check_rslt("bme68x_set_op_mode", rslt);
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/* Check if rslt == BME68X_OK, report or handle if otherwise */
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printf(
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"Sample, TimeStamp(ms), Temperature(deg C), Pressure(Pa), Humidity(%%), Gas resistance(ohm), Status, Profile index, Measurement index\n");
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while (sample_count <= SAMPLE_COUNT)
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{
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/* Calculate delay period in microseconds */
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del_period = bme68x_get_meas_dur(BME68X_SEQUENTIAL_MODE, &conf, &bme) + (heatr_conf.heatr_dur_prof[0] * 1000);
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bme.delay_us(del_period, bme.intf_ptr);
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time_ms = coines_get_millis();
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rslt = bme68x_get_data(BME68X_SEQUENTIAL_MODE, data, &n_fields, &bme);
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bme68x_check_rslt("bme68x_get_data", rslt);
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/* Check if rslt == BME68X_OK, report or handle if otherwise */
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for (uint8_t i = 0; i < n_fields; i++)
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{
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#ifdef BME68X_USE_FPU
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printf("%u, %lu, %.2f, %.2f, %.2f, %.2f, 0x%x, %d, %d\n",
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sample_count,
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(long unsigned int)time_ms + (i * (del_period / 2000)),
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data[i].temperature,
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data[i].pressure,
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data[i].humidity,
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data[i].gas_resistance,
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data[i].status,
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data[i].gas_index,
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data[i].meas_index);
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#else
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printf("%u, %lu, %d, %lu, %lu, %lu, 0x%x, %d, %d\n",
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sample_count,
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(long unsigned int)time_ms + (i * (del_period / 2000)),
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(data[i].temperature / 100),
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(long unsigned int)data[i].pressure,
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(long unsigned int)(data[i].humidity / 1000),
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(long unsigned int)data[i].gas_resistance,
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data[i].status,
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data[i].gas_index,
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data[i].meas_index);
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#endif
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sample_count++;
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}
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}
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bme68x_coines_deinit();
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return 0;
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}
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