kopia lustrzana https://github.com/pimoroni/pimoroni-pico
71 wiersze
2.0 KiB
C++
71 wiersze
2.0 KiB
C++
#include "bmp280.hpp"
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#include "pico/stdlib.h"
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namespace pimoroni {
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bool BMP280::init() {
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int8_t result;
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if(interrupt != PIN_UNUSED) {
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gpio_set_function(interrupt, GPIO_FUNC_SIO);
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gpio_set_dir(interrupt, GPIO_IN);
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gpio_pull_up(interrupt);
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}
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i2c_interface.i2c = i2c;
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i2c_interface.address = address;
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device.intf_ptr = &i2c_interface;
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device.intf = BMP280_I2C_INTF;
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device.read = (bmp280_com_fptr_t)&read_bytes;
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device.write = (bmp280_com_fptr_t)&write_bytes;
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device.delay_ms = (bmp280_delay_fptr_t)&delay_ms;
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result = bmp280_init(&device);
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if(result != BMP280_OK) return false;
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result = bmp280_set_config(&conf, &device);
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if(result != BMP280_OK) return false;
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configure(BMP280_FILTER_COEFF_2, BMP280_ODR_1000_MS, BMP280_OS_4X, BMP280_OS_4X);
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return true;
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}
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bool BMP280::configure(uint8_t filter, uint8_t odr, uint8_t os_pressure, uint8_t os_temp, uint8_t mode) {
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int8_t result;
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conf.filter = filter;
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conf.odr = odr;
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conf.os_pres = os_pressure;
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conf.os_temp = os_temp;
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result = bmp280_set_config(&conf, &device);
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if(result != BMP280_OK) return false;
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result = bmp280_set_power_mode(mode, &device);
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if(result != BMP280_OK) return false;
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return true;
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}
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BMP280::bmp280_reading BMP280::read() {
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bmp280_reading result;
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bmp280_get_uncomp_data(&ucomp_data, &device);
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int32_t temperature;
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result.status = bmp280_get_comp_temp_32bit(&temperature, ucomp_data.uncomp_temp, &device);
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result.temperature = 0.01f * temperature;
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result.status &= bmp280_get_comp_pres_32bit(&result.pressure, ucomp_data.uncomp_press, &device);
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return result;
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}
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I2C* BMP280::get_i2c() const {
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return i2c;
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}
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int BMP280::get_int() const {
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return interrupt;
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}
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} |