从模块读取了数据，还需要一系列算法才能利用这些数据

2021-08-22 00:35:34 +08:00
parent c19c78ac1a
commit ea477914a6
20 changed files with 14345 additions and 13541 deletions
@@ -6,15 +6,104 @@
 */

 #include "APP_blood.h"
-
+#include "iic.h"
 window *blood_win;
+uint16_t fifo_red;
+uint16_t fifo_ir;
+char blood_str[64];
+uint8_t Max30102_reset(void)
+{
+	char a=0x40;
+	IIC_SAND_DATE(MAX30102_Device_address,REG_MODE_CONFIG, &a,1);
+
+}
+void MAX30102_Config(void)
+{
+	char a;
+	a=0xc0;
+	IIC_SAND_DATE(MAX30102_Device_address,REG_INTR_ENABLE_1,&a,1);//// INTR setting
+	a=0;
+	IIC_SAND_DATE(MAX30102_Device_address,REG_INTR_ENABLE_2,&a,1);//
+	IIC_SAND_DATE(MAX30102_Device_address,REG_FIFO_WR_PTR,&a,1);//FIFO_WR_PTR[4:0]
+	IIC_SAND_DATE(MAX30102_Device_address,REG_OVF_COUNTER,&a,1);//OVF_COUNTER[4:0]
+	IIC_SAND_DATE(MAX30102_Device_address,REG_FIFO_RD_PTR,&a,1);//FIFO_RD_PTR[4:0]
+
+	a=0x0f;
+	IIC_SAND_DATE(MAX30102_Device_address,REG_FIFO_CONFIG,&a,1);//sample avg = 1, fifo rollover=false, fifo almost full = 17
+	a=0x03;
+	IIC_SAND_DATE(MAX30102_Device_address,REG_MODE_CONFIG,&a,1);//0x02 for Red only, 0x03 for SpO2 mode 0x07 multimode LED
+	a=0x27;
+	IIC_SAND_DATE(MAX30102_Device_address,REG_SPO2_CONFIG,&a,1);	// SPO2_ADC range = 4096nA, SPO2 sample rate (50 Hz), LED pulseWidth (400uS)
+	a=0x32;
+	IIC_SAND_DATE(MAX30102_Device_address,REG_LED1_PA,&a,1);//Choose value for ~ 10mA for LED1
+	IIC_SAND_DATE(MAX30102_Device_address,REG_LED2_PA,&a,1);// Choose value for ~ 10mA for LED2
+	a=0x7f;
+	IIC_SAND_DATE(MAX30102_Device_address,REG_PILOT_PA,&a,1);// Choose value for ~ 25mA for Pilot LED
+}
+void max30102_read_fifo(void)
+{
+  uint16_t un_temp;
+  fifo_red=0;
+  fifo_ir=0;
+  uint8_t ach_i2c_data[6];
+
+  //read and clear status register
+  IIC_READ_DATE(MAX30102_Device_address,REG_INTR_STATUS_1,&ach_i2c_data,1);
+  IIC_READ_DATE(MAX30102_Device_address,REG_INTR_STATUS_2,&ach_i2c_data,1);
+
+  ach_i2c_data[0]=REG_FIFO_DATA;
+
+  IIC_READ_DATE(MAX30102_Device_address,REG_FIFO_DATA,&ach_i2c_data,6);
+
+  un_temp=ach_i2c_data[0];
+  un_temp<<=14;
+  fifo_red+=un_temp;
+  un_temp=ach_i2c_data[1];
+  un_temp<<=6;
+  fifo_red+=un_temp;
+  un_temp=ach_i2c_data[2];
+	un_temp>>=2;
+  fifo_red+=un_temp;
+
+  un_temp=ach_i2c_data[3];
+  un_temp<<=14;
+  fifo_ir+=un_temp;
+  un_temp=ach_i2c_data[4];
+  un_temp<<=6;
+  fifo_ir+=un_temp;
+  un_temp=ach_i2c_data[5];
+	un_temp>>=2;
+  fifo_ir+=un_temp;
+
+	if(fifo_ir<=10000)
+	{
+		fifo_ir=0;
+	}
+	if(fifo_red<=10000)
+	{
+		fifo_red=0;
+	}
+
+}

 void APP_blood_init(window *a_window)
 {
 	blood_win=a_window;
+	Max30102_reset();
+	MAX30102_Config();
+
+	//HAL_GPIO_WritePin(MAX_RD_GPIO_Port, MAX_RD_Pin, 0);
 }

 void APP_blood_loop()
 {
+	max30102_read_fifo();
+	sprintf(blood_str,"fifo_red:%d",fifo_red);
+	LCD_ShowString(blood_win->x, blood_win->y+16, &blood_str, 16, WHITE, RED);
+	sprintf(blood_str,"fifo_ir:%d",fifo_ir);
+	LCD_ShowString(blood_win->x, blood_win->y+32, &blood_str, 16, WHITE, RED);
+	sprintf(blood_str,"INT:%d",HAL_GPIO_ReadPin(MAX_INT_GPIO_Port, MAX_INT_Pin));
+	LCD_ShowString(blood_win->x, blood_win->y+48, &blood_str, 16, WHITE, RED);
+

 }