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Dependencies:   mbed

baro_main.cpp@6:d4c401190320, 2019-09-15 (annotated)

Committer:
tenvinc
Date:
Sun Sep 15 13:13:10 2019 +0000
Revision:
6:d4c401190320
Parent:
4:26530d450402 
add main.cpp from spo2 sample

Who changed what in which revision?

UserRevisionLine numberNew contents of line
tenvinc 4:26530d450402 1 #include "mbed.h"
tenvinc 4:26530d450402 2 #include "MAX14720.h"
tenvinc 4:26530d450402 3 #include "MAX30205.h"
tenvinc 4:26530d450402 4 #include "BMP280.h"
tenvinc 4:26530d450402 5 #include "USBSerial.h"
tenvinc 4:26530d450402 6 //#include "MAX30001.h"
tenvinc 4:26530d450402 7 //#include "QuadSpiInterface.h"
tenvinc 4:26530d450402 8 //#include "S25FS512.h"
tenvinc 4:26530d450402 9 //#include "MAX30101.h"
tenvinc 4:26530d450402 10
tenvinc 4:26530d450402 11 //Define all I2C addresses
tenvinc 4:26530d450402 12 #define MAX30205_I2C_SLAVE_ADDR_TOP (0x92)
tenvinc 4:26530d450402 13 #define MAX30205_I2C_SLAVE_ADDR_BOTTOM (0x90)
tenvinc 4:26530d450402 14 #define MAX14720_I2C_SLAVE_ADDR (0x54)
tenvinc 4:26530d450402 15 #define BMP280_I2C_SLAVE_ADDR (0xEC)
tenvinc 4:26530d450402 16
tenvinc 4:26530d450402 17
tenvinc 4:26530d450402 18 #define HVOUT_VOLTAGE 4500 // set to 4500 mV
tenvinc 4:26530d450402 19
tenvinc 4:26530d450402 20 // Define with Maxim VID and a Maxim assigned PID, set to version 0x0001 and non-blocking
tenvinc 4:26530d450402 21 USBSerial usbSerial(0x0b6a, 0x0100, 0x0001, false);
tenvinc 4:26530d450402 22
tenvinc 4:26530d450402 23 // I2C Masters
tenvinc 4:26530d450402 24 I2C i2c1(I2C1_SDA, I2C1_SCL);
tenvinc 4:26530d450402 25 I2C i2c2(I2C2_SDA, I2C2_SCL);
tenvinc 4:26530d450402 26
tenvinc 4:26530d450402 27 // Top local Temperature Sensor
tenvinc 4:26530d450402 28 MAX30205 MAX30205_top(&i2c1, MAX30205_I2C_SLAVE_ADDR_TOP);
tenvinc 4:26530d450402 29
tenvinc 4:26530d450402 30 // Botttom local Temperature Sensor
tenvinc 4:26530d450402 31 MAX30205 MAX30205_bottom(&i2c1, MAX30205_I2C_SLAVE_ADDR_BOTTOM);
tenvinc 4:26530d450402 32
tenvinc 4:26530d450402 33 // Barometric Pressure Sensor
tenvinc 4:26530d450402 34 BMP280 bmp280_pres(&i2c1, BMP280_I2C_SLAVE_ADDR);
tenvinc 4:26530d450402 35
tenvinc 4:26530d450402 36 //PMIC
tenvinc 4:26530d450402 37 MAX14720 max14720(&i2c2,MAX14720_I2C_SLAVE_ADDR);
tenvinc 4:26530d450402 38
tenvinc 4:26530d450402 39 ///// External Flash
tenvinc 4:26530d450402 40 //S25FS512 s25fs512(&quadSpiInterface);
tenvinc 4:26530d450402 41
tenvinc 4:26530d450402 42 /// PWM used as fclk for the MAX30001
tenvinc 4:26530d450402 43 PwmOut pwmout(P1_7);
tenvinc 4:26530d450402 44
tenvinc 4:26530d450402 45
tenvinc 4:26530d450402 46 DigitalOut led(LED1);
tenvinc 4:26530d450402 47
tenvinc 4:26530d450402 48
tenvinc 4:26530d450402 49 void turnOff()
tenvinc 4:26530d450402 50 {
tenvinc 4:26530d450402 51 //write the power down command to PMIC
tenvinc 4:26530d450402 52 max14720.shutdown();
tenvinc 4:26530d450402 53 }
tenvinc 4:26530d450402 54 int main()
tenvinc 4:26530d450402 55 {
tenvinc 4:26530d450402 56
tenvinc 4:26530d450402 57 // Override the default value of boostEn to BOOST_ENABLED
tenvinc 4:26530d450402 58 max14720.boostEn = MAX14720::BOOST_ENABLED;
tenvinc 4:26530d450402 59 // Note that writing the local value does directly affect the part
tenvinc 4:26530d450402 60 // The buck-boost regulator will remain off until init is called
tenvinc 4:26530d450402 61 max14720.init();
tenvinc 4:26530d450402 62 // Turn LED signal on to make buck-boost output visible
tenvinc 4:26530d450402 63 max14720.boostSetVoltage(HVOUT_VOLTAGE);
tenvinc 4:26530d450402 64 led = 0;
tenvinc 4:26530d450402 65
tenvinc 4:26530d450402 66 // Initialise the BMP280
tenvinc 4:26530d450402 67 bmp280_pres.init(BMP280::OVERSAMPLING_X16_P, BMP280::OVERSAMPLING_X2_T, BMP280::FILT_4, BMP280::NORMAL_MODE, BMP280::T_62_5);
tenvinc 4:26530d450402 68
tenvinc 4:26530d450402 69 //Temperature sensor variables
tenvinc 4:26530d450402 70 uint16_t rawTemp_top;
tenvinc 4:26530d450402 71 uint16_t rawTemp_bottom ;
tenvinc 4:26530d450402 72 float celsius_top, celsius_bottom;
tenvinc 4:26530d450402 73 float fahrenheit_top, fahrenheit_bottom;
tenvinc 4:26530d450402 74
tenvinc 4:26530d450402 75 //barometric sensor variables
tenvinc 4:26530d450402 76 char bmp280_rawData = 0;
tenvinc 4:26530d450402 77 float Temp_degC, Press_Pa, Press_Bar;
tenvinc 4:26530d450402 78
tenvinc 4:26530d450402 79
tenvinc 4:26530d450402 80 //Endless loop
tenvinc 4:26530d450402 81 while(1)
tenvinc 4:26530d450402 82 {
tenvinc 4:26530d450402 83 /* Temperature Sensor Settings */
tenvinc 4:26530d450402 84
tenvinc 4:26530d450402 85 //Read Temperature
tenvinc 4:26530d450402 86 MAX30205_top.readTemperature(&rawTemp_top);
tenvinc 4:26530d450402 87 MAX30205_bottom.readTemperature(&rawTemp_bottom);
tenvinc 4:26530d450402 88 // Read BMP280 Temp. and Pressure
tenvinc 4:26530d450402 89 bmp280_pres.ReadCompDataRaw(&bmp280_rawData);
tenvinc 4:26530d450402 90 bmp280_pres.ToFloat(&bmp280_rawData, &Temp_degC, &Press_Pa);
tenvinc 4:26530d450402 91 // Convert to Celsius
tenvinc 4:26530d450402 92 celsius_top = MAX30205_top.toCelsius(rawTemp_top);
tenvinc 4:26530d450402 93 celsius_bottom = MAX30205_bottom.toCelsius(rawTemp_bottom);
tenvinc 4:26530d450402 94
tenvinc 4:26530d450402 95 // Convert to Fahrenheit
tenvinc 4:26530d450402 96 fahrenheit_top = MAX30205_top.toFahrenheit(celsius_top);
tenvinc 4:26530d450402 97 fahrenheit_bottom = MAX30205_bottom.toFahrenheit(celsius_bottom);
tenvinc 4:26530d450402 98
tenvinc 4:26530d450402 99 /* Barometric Sensor Settings */
tenvinc 4:26530d450402 100
tenvinc 4:26530d450402 101 Press_Bar = Press_Pa / 100000;
tenvinc 4:26530d450402 102
tenvinc 4:26530d450402 103 /* Printing various sensor values */
tenvinc 4:26530d450402 104 usbSerial.printf("***** MAX30205 Temperature Sensor Reading *****\n\r");
tenvinc 4:26530d450402 105 usbSerial.printf("Top Temperature: %.2f\370 C\n\rBottom Temperature: %.2f\370 C \n\rTop Temperature in Farenheit: %.2f\370 F\n\rBottom Temperature in Farenheit %.2f\370 F\n\n\r", celsius_top, celsius_bottom, fahrenheit_top, fahrenheit_bottom);
tenvinc 4:26530d450402 106
tenvinc 4:26530d450402 107 usbSerial.printf("***** BMP280 Barometric Sensor Reading *****\n\r");
tenvinc 4:26530d450402 108 usbSerial.printf("Temp_degC : %.2f , Press_Bar is %.2f , Press_pa is %.2f\n\n\r",Temp_degC, Press_Bar, Press_Pa);
tenvinc 4:26530d450402 109
tenvinc 4:26530d450402 110 usbSerial.printf("-------------------------------------------------\n\n\n\r");
tenvinc 4:26530d450402 111
tenvinc 4:26530d450402 112 wait(0.2);
tenvinc 4:26530d450402 113
tenvinc 4:26530d450402 114
tenvinc 4:26530d450402 115
tenvinc 4:26530d450402 116 }
tenvinc 4:26530d450402 117 }