110 lines
2.9 KiB
C
110 lines
2.9 KiB
C
/*
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* APP_blood.c
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*
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* Created on: 2021Äê8ÔÂ21ÈÕ
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* Author: wuwenfeng
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*/
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#include "APP_blood.h"
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#include "iic.h"
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window *blood_win;
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uint16_t fifo_red;
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uint16_t fifo_ir;
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char blood_str[64];
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uint8_t Max30102_reset(void)
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{
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char a=0x40;
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IIC_SAND_DATE(MAX30102_Device_address,REG_MODE_CONFIG, &a,1);
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}
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void MAX30102_Config(void)
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{
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char a;
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a=0xc0;
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IIC_SAND_DATE(MAX30102_Device_address,REG_INTR_ENABLE_1,&a,1);//// INTR setting
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a=0;
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IIC_SAND_DATE(MAX30102_Device_address,REG_INTR_ENABLE_2,&a,1);//
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IIC_SAND_DATE(MAX30102_Device_address,REG_FIFO_WR_PTR,&a,1);//FIFO_WR_PTR[4:0]
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IIC_SAND_DATE(MAX30102_Device_address,REG_OVF_COUNTER,&a,1);//OVF_COUNTER[4:0]
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IIC_SAND_DATE(MAX30102_Device_address,REG_FIFO_RD_PTR,&a,1);//FIFO_RD_PTR[4:0]
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a=0x0f;
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IIC_SAND_DATE(MAX30102_Device_address,REG_FIFO_CONFIG,&a,1);//sample avg = 1, fifo rollover=false, fifo almost full = 17
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a=0x03;
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IIC_SAND_DATE(MAX30102_Device_address,REG_MODE_CONFIG,&a,1);//0x02 for Red only, 0x03 for SpO2 mode 0x07 multimode LED
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a=0x27;
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IIC_SAND_DATE(MAX30102_Device_address,REG_SPO2_CONFIG,&a,1); // SPO2_ADC range = 4096nA, SPO2 sample rate (50 Hz), LED pulseWidth (400uS)
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a=0x32;
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IIC_SAND_DATE(MAX30102_Device_address,REG_LED1_PA,&a,1);//Choose value for ~ 10mA for LED1
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IIC_SAND_DATE(MAX30102_Device_address,REG_LED2_PA,&a,1);// Choose value for ~ 10mA for LED2
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a=0x7f;
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IIC_SAND_DATE(MAX30102_Device_address,REG_PILOT_PA,&a,1);// Choose value for ~ 25mA for Pilot LED
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}
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void max30102_read_fifo(void)
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{
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uint16_t un_temp;
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fifo_red=0;
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fifo_ir=0;
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uint8_t ach_i2c_data[6];
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//read and clear status register
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IIC_READ_DATE(MAX30102_Device_address,REG_INTR_STATUS_1,&ach_i2c_data,1);
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IIC_READ_DATE(MAX30102_Device_address,REG_INTR_STATUS_2,&ach_i2c_data,1);
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ach_i2c_data[0]=REG_FIFO_DATA;
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IIC_READ_DATE(MAX30102_Device_address,REG_FIFO_DATA,&ach_i2c_data,6);
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un_temp=ach_i2c_data[0];
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un_temp<<=14;
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fifo_red+=un_temp;
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un_temp=ach_i2c_data[1];
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un_temp<<=6;
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fifo_red+=un_temp;
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un_temp=ach_i2c_data[2];
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un_temp>>=2;
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fifo_red+=un_temp;
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un_temp=ach_i2c_data[3];
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un_temp<<=14;
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fifo_ir+=un_temp;
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un_temp=ach_i2c_data[4];
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un_temp<<=6;
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fifo_ir+=un_temp;
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un_temp=ach_i2c_data[5];
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un_temp>>=2;
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fifo_ir+=un_temp;
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if(fifo_ir<=10000)
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{
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fifo_ir=0;
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}
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if(fifo_red<=10000)
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{
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fifo_red=0;
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}
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}
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void APP_blood_init(window *a_window)
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{
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blood_win=a_window;
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Max30102_reset();
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MAX30102_Config();
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//HAL_GPIO_WritePin(MAX_RD_GPIO_Port, MAX_RD_Pin, 0);
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}
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void APP_blood_loop()
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{
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max30102_read_fifo();
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sprintf(blood_str,"fifo_red:%d",fifo_red);
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LCD_ShowString(blood_win->x, blood_win->y+16, &blood_str, 16, WHITE, RED);
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sprintf(blood_str,"fifo_ir:%d",fifo_ir);
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LCD_ShowString(blood_win->x, blood_win->y+32, &blood_str, 16, WHITE, RED);
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sprintf(blood_str,"INT:%d",HAL_GPIO_ReadPin(MAX_INT_GPIO_Port, MAX_INT_Pin));
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LCD_ShowString(blood_win->x, blood_win->y+48, &blood_str, 16, WHITE, RED);
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}
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