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Spl06-007 air pressure sensor (example of barometer)

2022-07-03 11:26:00 【Ch_ champion】

Catalog

summary

One 、 Schematic diagram

Two 、 platform

3、 ... and 、 code

Four 、 Running results

5、 ... and 、 summary

summary

        Needs on recent projects , Add air pressure detection function , Through online search, we know , There is less information about this sensor , Here is a Demo, Hope to help the siege lions in need , Study and discuss together , come on. come on. come on. ！

One 、 Schematic diagram

Two 、 platform

1、keil5.29

2、RTL8762D（ Realtek Bluetooth chip ）

3、 ... and 、 code

1、spl06_007.h file 


/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef __SPL06_007_H__
#define __SPL06_007_H__
#include "stdint.h"



#define SPL06_7BITI2C_ADDRESS		0x76


//Barometric rate(sample/sec),Background Model using
#define  PM_RATE_1          (0<<4)      //1 measurements pr. sec.
#define  PM_RATE_2          (1<<4)      //2 measurements pr. sec.
#define  PM_RATE_4          (2<<4)      //4 measurements pr. sec.           
#define  PM_RATE_8          (3<<4)      //8 measurements pr. sec.
#define  PM_RATE_16         (4<<4)      //16 measurements pr. sec.
#define  PM_RATE_32         (5<<4)      //32 measurements pr. sec.
#define  PM_RATE_64         (6<<4)      //64 measurements pr. sec.
#define  PM_RATE_128        (7<<4)      //128 measurements pr. sec.

//Air pressure resampling rate(times),Background Model using
#define PM_PRC_1            0       //Sigle         kP=524288   ,3.6ms
#define PM_PRC_2            1       //2 times       kP=1572864  ,5.2ms
#define PM_PRC_4            2       //4 times       kP=3670016  ,8.4ms
#define PM_PRC_8            3       //8 times       kP=7864320  ,14.8ms
#define PM_PRC_16           4       //16 times      kP=253952   ,27.6ms
#define PM_PRC_32           5       //32 times      kP=516096   ,53.2ms
#define PM_PRC_64           6       //64 times      kP=1040384  ,104.4ms
#define PM_PRC_128          7       //128 times     kP=2088960  ,206.8ms

//Temperature measurement rate(sample/sec),Background Model using
#define  TMP_RATE_1         (0<<4)      //1 measurements pr. sec.
#define  TMP_RATE_2         (1<<4)      //2 measurements pr. sec.
#define  TMP_RATE_4         (2<<4)      //4 measurements pr. sec.           
#define  TMP_RATE_8         (3<<4)      //8 measurements pr. sec.
#define  TMP_RATE_16        (4<<4)      //16 measurements pr. sec.
#define  TMP_RATE_32        (5<<4)      //32 measurements pr. sec.
#define  TMP_RATE_64        (6<<4)      //64 measurements pr. sec.
#define  TMP_RATE_128       (7<<4)      //128 measurements pr. sec.

//Temperature resampling rate(times),Background Model using
#define TMP_PRC_1           0       //Sigle
#define TMP_PRC_2           1       //2 times
#define TMP_PRC_4           2       //4 times
#define TMP_PRC_8           3       //8 times
#define TMP_PRC_16          4       //16 times
#define TMP_PRC_32          5       //32 times
#define TMP_PRC_64          6       //64 times
#define TMP_PRC_128         7       //128 times

//SPL06_MEAS_CFG
#define MEAS_COEF_RDY       0x80
#define MEAS_SENSOR_RDY     0x40        //The sensor is initialized
#define MEAS_TMP_RDY        0x20        //There are new temperature data
#define MEAS_PRS_RDY        0x10        //We have new barometric data

#define MEAS_CTRL_Standby               0x00    //idle mode
#define MEAS_CTRL_PressMeasure          0x01    //Single pressure measurement
#define MEAS_CTRL_TempMeasure           0x02    //Single temperature measurement
#define MEAS_CTRL_ContinuousPress       0x05    //Continuous pressure measurement
#define MEAS_CTRL_ContinuousTemp        0x06    //Continuous temperature measurement
#define MEAS_CTRL_ContinuousPressTemp   0x07    //Continuous barometric temperature measurement

//FIFO_STS
#define SPL06_FIFO_FULL     0x02
#define SPL06_FIFO_EMPTY    0x01

//INT_STS
#define SPL06_INT_FIFO_FULL     0x04
#define SPL06_INT_TMP           0x02
#define SPL06_INT_PRS           0x01

//CFG_REG
#define SPL06_CFG_T_SHIFT   0x08    //oversampling times>8 Must be used at 8 o 'clock
#define SPL06_CFG_P_SHIFT   0x04

#define SP06_PSR_B2     0x00        //pressure value
#define SP06_PSR_B1     0x01
#define SP06_PSR_B0     0x02
#define SP06_TMP_B2     0x03        //Temperature value
#define SP06_TMP_B1     0x04
#define SP06_TMP_B0     0x05

#define SP06_PSR_CFG    0x06        //Barometric configuration
#define SP06_TMP_CFG    0x07        //Temperature measurement configuration
#define SP06_MEAS_CFG   0x08        //Measurement mode configuration

#define SP06_CFG_REG    0x09
#define SP06_INT_STS    0x0A
#define SP06_FIFO_STS   0x0B

#define SP06_RESET      0x0C
#define SP06_ID         0x0D

#define SP06_COEF       0x10        //-0x21
#define SP06_COEF_SRCE  0x28



uint8_t spl06_init(void);
uint8_t spl06_007_bpm_algo_handler(void);


#endif /* __MODULE_SPL06_007_IIC__H__ */

/******************* (C) COPYRIGHT 2012 STMicroelectronics *****END OF FILE****/

2、spl06_007.c file 


/*********************************************************************************************************
*               Copyright(c) 2018, Realtek Semiconductor Corporation. All rights reserved.
**********************************************************************************************************
* @file     spl06_007.c
* @brief
* @details
* @author
* @date
* @version  v0.1
*********************************************************************************************************
*/

#include "trace.h"
#include "rtl876x_spi.h"
#include "rtl876x_i2c.h"
#include "rtl876x_rcc.h"
#include "rtl876x_gpio.h"
#include "rtl876x_nvic.h"
#include "board.h"
#include "string.h"
#include "hub_task.h"
#include "os_sched.h"
#include "os_timer.h"
#include "SEGGER_RTT.h"
#include "rtl876x_tim.h"
#include "BD_health_math.h"
#include "spl06_007.h"
#include "math.h"


#define BAROCEPTOR_LOG_EN	(true)	
#if (BAROCEPTOR_LOG_EN == true)
#include "xky_private_service.h"
#include "stdio.h"
#define BAROCEPTOR_LOG		DBG_LOG
#else
#define HEART_LOG(...)
#endif


float _kT=0, _kP=0;
int16_t _C0=0, _C1=0, _C01=0, _C11=0, _C20=0, _C21=0, _C30=0;
int32_t _C00=0, _C10=0;


void SPL06_007_Delay_ms(uint16_t delay_time)
{
	os_delay(delay_time);
}

uint8_t SPL06_007_I2c_Write(uint8_t reg, uint8_t dat)
{
	uint8_t I2C_WriteBuf[2] = {0x0, 0x0};
    I2C_WriteBuf[0] = reg;
    I2C_WriteBuf[1] = dat;
    uint32_t time_out = SYSTEM_IIC_TIMEROUT;
    while ((I2C_GetFlagState(HRS_I2C_BUS, I2C_FLAG_TFE) == RESET) && (--time_out != 0));
	time_out = SYSTEM_IIC_TIMEROUT;
    while ((I2C_GetFlagState(HRS_I2C_BUS, I2C_FLAG_MST_ACTIVITY) == SET) && (--time_out != 0));
    I2C_SetSlaveAddress(HRS_I2C_BUS, SPL06_7BITI2C_ADDRESS);
    I2C_MasterWrite(HRS_I2C_BUS, I2C_WriteBuf, 2);
	
	if (time_out == 0) {
		RtkWristbandSys.flag_field.i2c_bus_lock = true;
	}
	return 0;
}

uint8_t SPL06_007_I2c_Read(uint8_t reg, uint8_t *buf, uint8_t len)
{
	uint8_t tmp_buffer[1] = {0};
	uint32_t time_out = SYSTEM_IIC_TIMEROUT;
	
	tmp_buffer[0] = reg;
    while ((I2C_GetFlagState(HRS_I2C_BUS, I2C_FLAG_TFE) == RESET) && (--time_out != 0));
	time_out = SYSTEM_IIC_TIMEROUT;
    while ((I2C_GetFlagState(HRS_I2C_BUS, I2C_FLAG_MST_ACTIVITY) == SET) && (--time_out != 0));
	
//	I2C_SetSlaveAddress(HRS_I2C_BUS, (SPL06_7BITI2C_ADDRESS << 1));
	I2C_SetSlaveAddress(HRS_I2C_BUS, SPL06_7BITI2C_ADDRESS);
		
    I2C_Status ret = I2C_RepeatRead(HRS_I2C_BUS, tmp_buffer, 1, buf, len);
	
	if (time_out == 0) {
		RtkWristbandSys.flag_field.i2c_bus_lock = true;
	}
	
	if (ret != I2C_Success) {
		return 1;
	}
	return 0;
}

uint8_t SPL06_007_Write_Reg(uint8_t regAddr, uint8_t data)
{
	return SPL06_007_I2c_Write(regAddr, data);
}

uint8_t SPL06_007_Read_Reg(uint8_t regAddr, uint8_t *buf)
{
	return SPL06_007_I2c_Read(regAddr, buf, 1);
}

uint8_t SPL06_007_MultiRead_Reg(uint8_t regAddr, uint8_t *buf, uint16_t len)
{
	return SPL06_007_I2c_Read(regAddr, buf, len);
}

void SPL06_Start(uint8_t mode)
{
    SPL06_007_Write_Reg(SP06_MEAS_CFG, mode);//Measurement mode configuration
}

void SPL06_Config_Temperature(uint8_t rate,uint8_t oversampling)
{
	uint8_t temp = 0;
    switch(oversampling)
    {
	case TMP_PRC_1:
		_kT = 524288;
		break;
	case TMP_PRC_2:
		_kT = 1572864;
		break;
	case TMP_PRC_4:
		_kT = 3670016;
		break;
	case TMP_PRC_8:
		_kT = 7864320;
		break;
	case TMP_PRC_16:
		_kT = 253952;
		break;
	case TMP_PRC_32:
		_kT = 516096;
		break;
	case TMP_PRC_64:
		_kT = 1040384;
		break;
	case TMP_PRC_128:
		_kT = 2088960;
		break;
    }
    SPL06_007_Write_Reg(SP06_TMP_CFG,rate|oversampling|0x80);   //Temperature measured 128 times per second (maximum speed)
    if (oversampling > TMP_PRC_8)
    {
        SPL06_007_Read_Reg(SP06_CFG_REG, &temp);
        SPL06_007_Write_Reg(SP06_CFG_REG,temp|SPL06_CFG_T_SHIFT);
    }
}

void SPL06_Config_Pressure(uint8_t rate,uint8_t oversampling)//Set the compensation coefficient and sampling rate
{
	uint8_t temp = 0;
    switch(oversampling)
    {
	case PM_PRC_1:
		_kP = 524288;
		break;
	case PM_PRC_2:
		_kP = 1572864;
		break;
	case PM_PRC_4:
		_kP = 3670016;
		break;
	case PM_PRC_8:
		_kP = 7864320;
		break;
	case PM_PRC_16:
		_kP = 253952;
		break;
	case PM_PRC_32:
		_kP = 516096;
		break;
	case PM_PRC_64:
		_kP = 1040384;
		break;
	case PM_PRC_128:
		_kP = 2088960;
		break;
    }
	
    SPL06_007_Write_Reg(SP06_PSR_CFG,rate|oversampling);
    if(oversampling > PM_PRC_8)
    {
        SPL06_007_Read_Reg(SP06_CFG_REG, &temp);
        SPL06_007_Write_Reg(SP06_CFG_REG,temp|SPL06_CFG_P_SHIFT);
    }
}

int32_t SPL06_Get_Pressure_ADC(void)//Get the pressure ADC value
{
    uint8_t buf[3];
    int32_t adc;
	
    SPL06_007_MultiRead_Reg(SP06_PSR_B2, buf, 3);
    adc = (int32_t)buf[0]<<16 | (int32_t)buf[1]<<8 | (int32_t)buf[2];
    adc = (adc&0x800000)?(0xFF000000|adc):adc;
	
    return adc;
}

int32_t SPL06_Get_Temperature_ADC(void)//Get the temperature ADC value
{
    uint8_t buf[3];
    int32_t adc;
	
    SPL06_007_MultiRead_Reg(SP06_TMP_B2,buf,3);
    adc = (int32_t)buf[0]<<16 | (int32_t)buf[1]<<8 | (int32_t)buf[2];
    adc = (adc&0x800000)?(0xFF000000|adc):adc;
    return adc;
}

uint8_t SPL06_UpDate(float *Temp,float *Press)//Obtain and calculate the temperature value, the pressure value
{
	float Praw_src=0,Traw_src=0;
    float qua2=0, qua3=0;
    Traw_src = SPL06_Get_Temperature_ADC()/_kT;
    Praw_src = SPL06_Get_Pressure_ADC()/_kP ;
	//calculating temperature
    *Temp = 0.5f*_C0 + Traw_src * _C1;
    //Calculation of pressure
    qua2 = _C10 + Praw_src * (_C20 + Praw_src* _C30);
    qua3 = Traw_src * Praw_src * (_C11 + Praw_src * _C21);
    *Press = _C00 + Praw_src * qua2 + Traw_src * _C01 + qua3;
    return 0;
}

uint8_t spl06_init(void)
{
    uint8_t coef[18];
    uint8_t id;
    if (SPL06_007_Write_Reg(SP06_RESET, 0x89))
		return 1;
	
	SPL06_007_Delay_ms(40);
    SPL06_007_Read_Reg(SP06_ID, &id);
		
	BAROCEPTOR_LOG("SPL06-ID: 0x%x\n",id);
		
    if (id != 0x10)
    {
		return 2;
    }
		
	BAROCEPTOR_LOG("SPL06 is OK: 0x%x\r\n",id);
	
    SPL06_007_Delay_ms(100);        //Reset after coefficient ready required at least 40ms
	
    SPL06_007_MultiRead_Reg(SP06_COEF, coef, 18);//Read relevant data
    _C0 = ((int16_t)coef[0]<<4 ) | ((coef[1]&0xF0)>>4);
    _C0 = (_C0&0x0800)?(0xF000|_C0):_C0;
    _C1 = ((int16_t)(coef[1]&0x0F)<<8 ) | coef[2];
    _C1 = (_C1&0x0800)?(0xF000|_C1):_C1;
    _C00 = (int32_t)coef[3]<<12  | (int32_t)coef[4]<<4  | (int32_t)coef[5]>>4;
    _C10 = (int32_t)(coef[5]&0x0F)<<16  | (int32_t)coef[6]<<8  | (int32_t)coef[7];
    _C00 = (_C00&0x080000)?(0xFFF00000|_C00):_C00;
	_C10 = (_C10&0x080000)?(0xFFF00000|_C10):_C10;
	
	_C01 = ((int16_t)coef[8]<<8 ) | coef[9];
	_C01 = (_C01&0x0800)?(0xF000|_C01):_C01;
	
    _C11 = ((int16_t)coef[10]<<8 ) | coef[11];
    _C11 = (_C11&0x0800)?(0xF000|_C11):_C11;
	
    _C20 = ((int16_t)coef[12]<<8 ) | coef[13];
    _C20 = (_C20&0x0800)?(0xF000|_C20):_C20;
    _C21 = ((int16_t)coef[14]<<8 ) | coef[15];
    _C21 = (_C21&0x0800)?(0xF000|_C21):_C21;
    _C30 = ((int16_t)coef[16]<<8 ) | coef[17];
    _C30 = (_C30&0x0800)?(0xF000|_C30):_C30;
	
    SPL06_Config_Pressure(PM_RATE_128,PM_PRC_64);
    SPL06_Config_Temperature(PM_RATE_8,TMP_PRC_8);
	
    SPL06_Start(MEAS_CTRL_ContinuousPressTemp); //Start continuous pressure temperature measurement
    SPL06_007_Delay_ms(20);
    return 0;
}

float Caculate_Altitude(float GasPress)
{
	float Altitude=0;
	Altitude =(44330.0 *(1.0-pow((float)(GasPress) / 101325.0,1.0/5.255)));
	return Altitude;
}


static uint8_t spl06_007_bpm_algo_handler(void)
{	
	static float paValue = 0;
	static float AltitudeHight = 0;
	float temp =0;
	
	SPL06_UpDate(&temp, &paValue);
	
	char Buffer_pa[100]={0};
	char Buffer_temp[100]={0};
	char Buffer_AltitudeHight[100]={0};
	
	sprintf(Buffer_pa,"%0.2f ",paValue);    
	sprintf(Buffer_temp,"%0.2f ",temp);    
	
//	BAROCEPTOR_LOG("t:%s   p:%s\r\n", Buffer_pa, Buffer_temp);

	AltitudeHight = Caculate_Altitude(paValue);
	sprintf(Buffer_AltitudeHight,"%0.2f ", AltitudeHight); 

	BAROCEPTOR_LOG("paValue:%s   AltitudeHight:%s\r\n", Buffer_pa, Buffer_AltitudeHight);
	SPL06_007_Delay_ms(5);
	
	if (0) {	//open hr monitor
		return HRM_MeasureOutput;
	}

    return HRM_Measuring;
}

static uint16_t spl06_007_driver_timer_event_handler(void)
{
	return spl06_007_bpm_algo_handler();
}

3、main.c file  

#include <stdlib.h>
#include "board.h"
#include "os_sched.h"
#include "string.h"
#include "trace.h"
#include "gap.h"
#include "gap_adv.h"
#include "gap_bond_le.h"
#include "app_task.h"
#include "communicate_task.h"
#include "dlps.h"
#include "ftl.h"
#include "ias.h"
#include "bas.h"
#include "hids_media.h"
#include "ancs.h"
#include "ams.h"
#include <gatts_client.h>
#include "rtl876x_io_dlps.h"
#include "rtl876x_rcc.h"
#include "rtl876x_i2c.h"
#include "otp_config.h"
#include "rtl876x_lib_platform.h"
#include "single_tone.h"
#include "profile_server.h"
#include "hub_clock.h"
#include "app_flash_config.h"
#include "profile_client.h"
#include "ota_service.h"
#include "hub_task.h"
#include "hci_app.h"
#include "flash_test_temp.h"
#include "spl06_007.h"
 
int main(void)
{
 
	le_gap_init(1);
	gap_lib_init();
	app_le_gap_init();
	app_le_profile_init();
	pwr_mgr_init();
	task_init();
	os_sched_start();
 
 
}

Four 、 Running results

5、 ... and 、 summary

         Okay , That's all for the introduction , Take a note , At the same time, I hope I can help the siege lions who need help .

Reference article ：

1、 About SPL06 Use _HES_C The blog of -CSDN Blog _spl06

2、SPL06-001 barometer _ Super brother's column -CSDN Blog

Sample code for reference ：

1、STM32_SPL06-01-I2C routine .rar- Other document resources -CSDN download

2、STM32_SPL06-01-SPI routine .rar- Embedded document resources -CSDN download

原网站

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本文为[Ch_ champion]所创，转载请带上原文链接，感谢
https://yzsam.com/2022/02/202202150530455600.html

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