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50 lines
1.7 KiB
C
50 lines
1.7 KiB
C
#pragma once
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/*底层接口定义*/
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#include "bsp/i2c.h"
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#include "stdint.h"
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#define BMP280_I2C_ADDR 0x76 // BMP280 默认 I2C 地址
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/*寄存器地址*/
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#define BMP280_ID 0xD0 // 设备ID地址
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#define BMP280_RESET 0xE0 // 设备重启
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#define BMP280_STATUS 0xF3 // 设备状态
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#define BMP280_CTRL_MEAS 0xF4 // 数据采集和模式设置
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#define BMP280_CONFIG 0xF5 // 采样速率，滤波器和接口设置
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#define BMP280_DIGT 0x88 // 温度校准系数起始位置
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#define BMP280_DIGP 0x8E // 气压校准系数起始位置
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#define BMP280_TEMP 0xFA // 温度储存起始位置
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#define BMP280_PRES 0xF7 // 气压储存起始位置
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#define BMP2_CHIP_ID 0x58 // 设备ID地址
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#define bmp280_msblsb_to_u16(msb, lsb) (((uint16_t)msb << 8) | ((uint16_t)lsb))
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typedef struct {
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unsigned short dig_t1;
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signed short dig_t2;
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signed short dig_t3;
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unsigned short dig_p1;
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signed short dig_p2;
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signed short dig_p3;
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signed short dig_p4;
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signed short dig_p5;
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signed short dig_p6;
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signed short dig_p7;
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signed short dig_p8;
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signed short dig_p9;
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} bmp280_calib;
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uint8_t bmp280_get_id(void);
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uint8_t bmp280_reset(void);
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uint8_t bmp280_getStatus(void);
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uint8_t bmp280_setMode(uint8_t mode);
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uint8_t bmp280_setOversampling(uint8_t osrs_p, uint8_t osrs_t);
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uint8_t bmp280_setConfig(uint8_t Standbyt, uint8_t filter);
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void bmp280_getCalibration(bmp280_calib *calib);
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void bmp280_getTemperature(bmp280_calib *calib, double *temperature, int32_t *t_fine);
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void bmp280_getPressure(bmp280_calib *calib, double *pressure, int32_t *t_fine);
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uint8_t bmp280_init(bmp280_calib *calib);
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void bmp280_getdata(bmp280_calib *calib, float *temperature, float *pressure);
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