max30100血氧传感器开发资料附arduino和stm32源码 -

/*
Arduino-MAX30100 oximetry / heart rate integrated sensor library
Copyright (C) 2016 OXullo Intersecans <x@brainrapers.org>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
//#include <Wire.h>
#include "MAX30100.h"
#include "usart.h"
#include "delay.h"
#include "myiic.h"
uint16_t rawIRValue;
uint16_t rawRedValue;
void max_begin()//void MAX30100::begin()
{
// I2C_GPIO_Config();
// I2C_Mode_Config();
// Wire.begin();
// Wire.setClock(I2C_BUS_SPEED);
IIC_Init();
setMode(DEFAULT_MODE); //往地址0x06的寄存器写0x02（仅打开心率测量模块）
setLedsPulseWidth(DEFAULT_PULSE_WIDTH); //往地址0x07的寄存器写0x03（16位AD转换，脉冲宽度1.6ms）
setSamplingRate(DEFAULT_SAMPLING_RATE); //往地址0x07的寄存器写0x01（设置采样率为100）
setLedsCurrent(DEFAULT_IR_LED_CURRENT, DEFAULT_RED_LED_CURRENT); //往地址0x09的寄存器写0xff（控制Red_led,IR_led电流各为50ma）
// setHighresModeEnabled(true);
setHighresModeEnabled(1); //使能血氧饱和度的ADC的分辨率为16位，1.6ms LED脉冲宽度
}
void setMode(Mode mode)//void MAX30100::setMode(Mode mode)
{
// writeRegister(MAX30100_REG_MODE_CONFIGURATION, mode);
Write_One_Byte(MAX30100_REG_MODE_CONFIGURATION, mode);
// printf("%d\r\n",Write_One_Byte(MAX30100_REG_MODE_CONFIGURATION, mode));
}
void setLedsPulseWidth(LEDPulseWidth ledPulseWidth)//void MAX30100::setLedsPulseWidth(LEDPulseWidth ledPulseWidth)
{
// uint8_t previous = readRegister(MAX30100_REG_SPO2_CONFIGURATION);
// writeRegister(MAX30100_REG_SPO2_CONFIGURATION, (previous & 0xfc) | ledPulseWidth);
uint8_t previous; previous=Read_One_Byte(MAX30100_REG_SPO2_CONFIGURATION); //reg 0x07
printf("Read_One_Byte(0x07); = 0x%x \n", previous);
Write_One_Byte(MAX30100_REG_SPO2_CONFIGURATION, (previous & 0xfc) | ledPulseWidth); //reg 0x07 w
}
void setSamplingRate(SamplingRate samplingRate)//void MAX30100::setSamplingRate(SamplingRate samplingRate)
{
// uint8_t previous = readRegister(MAX30100_REG_SPO2_CONFIGURATION);
// writeRegister(MAX30100_REG_SPO2_CONFIGURATION, (previous & 0xe3) | (samplingRate << 2));
uint8_t previous; previous=Read_One_Byte(MAX30100_REG_SPO2_CONFIGURATION); //reg 0x07
Write_One_Byte(MAX30100_REG_SPO2_CONFIGURATION, (previous & 0xe3) | (samplingRate << 2)); //reg 0x07 w
}
void setLedsCurrent(LEDCurrent irLedCurrent, LEDCurrent redLedCurrent)//void MAX30100::setLedsCurrent(LEDCurrent irLedCurrent, LEDCurrent redLedCurrent)
{
// writeRegister(MAX30100_REG_LED_CONFIGURATION, redLedCurrent << 4 | irLedCurrent);
Write_One_Byte(MAX30100_REG_LED_CONFIGURATION, redLedCurrent << 4 | irLedCurrent); //reg 0x09
}
void setHighresModeEnabled(u8 enabled)//void MAX30100::setHighresModeEnabled(bool enabled)
{
// uint8_t previous = readRegister(MAX30100_REG_SPO2_CONFIGURATION);
// if (enabled) {
// writeRegister(MAX30100_REG_SPO2_CONFIGURATION, previous | MAX30100_SPC_SPO2_HI_RES_EN);
// } else {
// writeRegister(MAX30100_REG_SPO2_CONFIGURATION, previous & ~MAX30100_SPC_SPO2_HI_RES_EN);
// }
uint8_t previous;
previous=Read_One_Byte(MAX30100_REG_SPO2_CONFIGURATION);
if (enabled) {
Write_One_Byte(MAX30100_REG_SPO2_CONFIGURATION, previous | MAX30100_SPC_SPO2_HI_RES_EN);
} else {
Write_One_Byte(MAX30100_REG_SPO2_CONFIGURATION, previous & ~MAX30100_SPC_SPO2_HI_RES_EN);
}
}
void update()//void MAX30100::update()
{
readFifoData();
}
void readFifoData(void)//void MAX30100::readFifoData()
{
// int i;
uint8_t buffer[4];
Buff_Read(MAX30100_REG_FIFO_DATA,buffer, 4);
// Warning: the values are always left-aligned
rawIRValue = (buffer[0] << 8) | buffer[1];
rawRedValue = (buffer[2] << 8) | buffer[3];
printf("rawIRValue = %d \n",rawIRValue);
printf("rawRedValue = %d \n",rawRedValue);
// for(i=0; i<4; i++)
// {
// printf("buffer[%d] = %d \n",i, buffer[i]);
// }
}
u8 Write_One_Byte(u8 addr,u8 data)
{
IIC_Start();
IIC_Send_Byte(0xAE); //发送地址+写命令
if(IIC_Wait_Ack()) //等待ACK
{
goto RESTATE;
}
IIC_Send_Byte(addr); //发送寄存器地址
if(IIC_Wait_Ack()) //等待ACK
{
goto RESTATE;
}
IIC_Send_Byte(data); //发送数据
if(IIC_Wait_Ack()) //等待ACK
{
goto RESTATE;;
}
IIC_Stop();
return 1;
RESTATE:
IIC_Stop();
return 0;
}
u8 Read_One_Byte(u8 addr)
{
uint8_t res;
IIC_Start();
IIC_Send_Byte(0xAE); //发送期间地址+写命令
if(IIC_Wait_Ack()) //等待ACK
{
goto RESTATE;
}
IIC_Send_Byte(addr); //发送寄存器地址
if(IIC_Wait_Ack()) //等待ACK
{
goto RESTATE;
}
IIC_Start();
IIC_Send_Byte(0xAF); //发送器件地址+读命令
if(IIC_Wait_Ack()) //等待ACK
{
goto RESTATE;
}
res=IIC_Read_Byte(0); //
IIC_Stop(); //
return res;
RESTATE:
IIC_Stop();
return 0;
}
u8 Buff_Read(u8 address,u8 *buf, u8 len) //读取特定地址寄存器里面特定长度的数据
{
IIC_Start();
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/*
Arduino-MAX30100 oximetry / heart rate integrated sensor library
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <Wire.h>
#include "MAX30100.h"
MAX30100::MAX30100()
{
}
void MAX30100::begin()
{
Wire.begin();
Wire.setClock(I2C_BUS_SPEED);
setMode(DEFAULT_MODE);
setLedsPulseWidth(DEFAULT_PULSE_WIDTH);
setSamplingRate(DEFAULT_SAMPLING_RATE);
setLedsCurrent(DEFAULT_IR_LED_CURRENT, DEFAULT_RED_LED_CURRENT);
setHighresModeEnabled(true);
}
void MAX30100::setMode(Mode mode)
{
writeRegister(MAX30100_REG_MODE_CONFIGURATION, mode);
}
void MAX30100::setLedsPulseWidth(LEDPulseWidth ledPulseWidth)
{
uint8_t previous = readRegister(MAX30100_REG_SPO2_CONFIGURATION);
writeRegister(MAX30100_REG_SPO2_CONFIGURATION, (previous & 0xfc) | ledPulseWidth);
}
void MAX30100::setSamplingRate(SamplingRate samplingRate)
{
uint8_t previous = readRegister(MAX30100_REG_SPO2_CONFIGURATION);
writeRegister(MAX30100_REG_SPO2_CONFIGURATION, (previous & 0xe3) | (samplingRate << 2));
}
void MAX30100::setLedsCurrent(LEDCurrent irLedCurrent, LEDCurrent redLedCurrent)
{
writeRegister(MAX30100_REG_LED_CONFIGURATION, redLedCurrent << 4 | irLedCurrent);
}
void MAX30100::setHighresModeEnabled(bool enabled)
{
uint8_t previous = readRegister(MAX30100_REG_SPO2_CONFIGURATION);
if (enabled) {
writeRegister(MAX30100_REG_SPO2_CONFIGURATION, previous | MAX30100_SPC_SPO2_HI_RES_EN);
} else {
writeRegister(MAX30100_REG_SPO2_CONFIGURATION, previous & ~MAX30100_SPC_SPO2_HI_RES_EN);
}
}
void MAX30100::update()
{
readFifoData();
}
uint8_t MAX30100::readRegister(uint8_t address)
{
Wire.beginTransmission(MAX30100_I2C_ADDRESS);
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…………
…………限于本文篇幅余下代码请从51黑下载附件…………

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