main.cpp

00001 /*******************************************************************************
00002 * Copyright (C) 2018 Maxim Integrated Products, Inc., All Rights Reserved.
00003 *
00004 * Permission is hereby granted, free of charge, to any person obtaining a
00005 * copy of this software and associated documentation files (the "Software"),
00006 * to deal in the Software without restriction, including without limitation
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00009 * Software is furnished to do so, subject to the following conditions:
00010 *
00011 * The above copyright notice and this permission notice shall be included
00012 * in all copies or substantial portions of the Software.
00013 *
00014 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
00015 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
00016 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
00017 * IN NO EVENT SHALL MAXIM INTEGRATED BE LIABLE FOR ANY CLAIM, DAMAGES
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00019 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
00020 * OTHER DEALINGS IN THE SOFTWARE.
00021 *
00022 * Except as contained in this notice, the name of Maxim Integrated
00023 * Products, Inc. shall not be used except as stated in the Maxim Integrated
00024 * Products, Inc. Branding Policy.
00025 *
00026 * The mere transfer of this software does not imply any licenses
00027 * of trade secrets, proprietary technology, copyrights, patents,
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00031 *******************************************************************************
00032 */
00033 #include "mbed.h"
00034 #include "max32630fthr.h"
00035 #include "MAX30101.h"
00036 #include "USBSerial.h"
00037 
00038 MAX32630FTHR pegasus(MAX32630FTHR::VIO_1V8);  // Change the GPIOs from 3.3V to 1.8V
00039 
00040 DigitalOut rLED(LED1);
00041 DigitalOut gLED(LED2);
00042 DigitalOut bLED(LED3);
00043 #define MAX30101_I2C_SLAVE_ADDR (0xAE)
00044 MAX30101 HrSensor(P3_4, P3_5, MAX30101_I2C_SLAVE_ADDR);  // SDA, SCL, i2c 7-bit address
00045     
00046 // main() runs in its own thread in the OS
00047 // (note the calls to Thread::wait below for delays)
00048 /**
00049 * @brief Sample main program for MAX30101
00050 * @version 1.0000.0
00051 *
00052 * @details Sample main program for MAX30101.
00053 * The prints are sent to the terminal window (9600, 8n1).
00054 * The program sets the GPIOs to 1.8V and the program
00055 * blinks green if it's able to communicate with
00056 * the MAX30101, otherwise, it blinks red.
00057 * To run the program, drag and drop the .bin file into the 
00058 * DAPLINK folder. After it finishes flashing, cycle the power or 
00059 * reset the Pegasus after flashing by pressing the button on
00060 * the Pegasus next to the battery connector or the button
00061 * on the MAXREFDES100HDK.
00062 */
00063 int main()
00064 {
00065     char value=0;
00066     int ret;
00067 
00068     DigitalOut rLED(LED1, LED_OFF);
00069     DigitalOut gLED(LED2, LED_OFF);
00070     DigitalOut bLED(LED3, LED_OFF);
00071 
00072     while (true) {  // Blink the blue-green LED 
00073         ret = HrSensor.i2c_reg_read(MAX30101::REG_ID,&value);
00074         if (value == 0x15) {
00075             printf("MAX30101 Heart Rate Sensor Part ID = %#X\r\n", value);
00076             rLED = LED_OFF;
00077             gLED = !gLED;
00078         }else {
00079             printf("Error, MAX30101 Part ID %#X is not correct, ret = %d\r\n", value, ret);
00080             gLED = LED_OFF;
00081             rLED = !rLED;
00082         }
00083         printf("\r\n");
00084         wait(1.0);
00085     }
00086 }
00087