Host software for the MAX30001 ECG, PACE, biopotential, bioimpedance, R-to-R peak sensor. Hosted on the MAX32630FTHR.

Dependencies:   SDFileSystem USBDevice max32630fthr

Fork of MAX30001 SYS EvKit by Emre Eken

MAX30001-MAX32630FTHR ECG Evaluation System

The MAX30001 EVKIT SYS-MBED Evaluation System (EV System) is used to evaluates the MAX30001 sensor, which is an ECG (electrocardiogram), biopotential and bioimpedance analog front end solution for wearable applications. The full evaluation system consists of the MAX32630FTHR board, MAX30001 EVKIT sensor board and the evaluation software. The evaluation kit features ECG, PACE, R-to-R (R-peak timing) detection; bioimpedance (BioZ) AFE; and raw data logging.

The MAX30001 EVKIT evaluation system is assembled, tested and contains the necessary circuitry and connections to evaluate the MAX30001 ECG sensor.

When evaluated as an evaluation system, the MAX32630FTHR board provides the necessary logic rails, master clock, SPI, USB-to-Serial interfaces that are needed to evaluate the MAX30001 sensor board. MAX32630FTHR can be used as an independent development platform.

Communication between the PC and the MAX32630FTHR board is facilitated by a Windows 7, Windows 8 and Windows 10 compatible software that provides a simple and intuitive graphical user interface (GUI).

For more information, visit the wiki pages by clicking the wiki tab above and MAX30001EVSYS product page.

C++ source code, library for the MAX30001 ECG drivers are in the links at the bottom of this page. The sample code includes the ability to log data to the SD card of the MAX32630FTHR.

MAX30001 EVKIT Pinout Connections

/media/uploads/EmreE/max30001_sensor_board_connector_pinout.png

Where to Buy

MAX30001EVSYS-Buy

HSP/main.cpp

Committer:
Emre.Eken
Date:
2018-07-24
Revision:
13:6031b0bd9773
Parent:
12:a2e4e8909300

File content as of revision 13:6031b0bd9773:

/*******************************************************************************
 * Copyright (C) 2016 Maxim Integrated Products, Inc., All Rights Reserved.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included
 * in all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
 * IN NO EVENT SHALL MAXIM INTEGRATED BE LIABLE FOR ANY CLAIM, DAMAGES
 * OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 * OTHER DEALINGS IN THE SOFTWARE.
 *
 * Except as contained in this notice, the name of Maxim Integrated
 * Products, Inc. shall not be used except as stated in the Maxim Integrated
 * Products, Inc. Branding Policy.
 *
 * The mere transfer of this software does not imply any licenses
 * of trade secrets, proprietary technology, copyrights, patents,
 * trademarks, maskwork rights, or any other form of intellectual
 * property whatsoever. Maxim Integrated Products, Inc. retains all
 * ownership rights.
 *******************************************************************************
 */
#include "mbed.h"
#include "max32630fthr.h"
#include "USBSerial.h"
#include "RpcServer.h"
#include "StringInOut.h"
#include "Peripherals.h"
#include "MAX30001.h"
#include "DataLoggingService.h"
#include "PushButton.h"
#include "USBSerial.h"
#include "Streaming.h"
#include "SDFileSystem.h"
#include "version.h"


//Init PMIC on FTHR board and set logic thresholds to 3.3V
MAX32630FTHR pegasus(MAX32630FTHR::VIO_3V3);

SDFileSystem sd(P0_5, P0_6, P0_4, P0_7, "sd");  // mosi, miso, sclk, cs

///
/// wire Interfaces
///
/// Define with Maxim VID and a Maxim assigned PID, set to version 0x0001 and non-blocking
USBSerial usbSerial(0x0b6a, 0x7531, 0x0001, false);


//SD card insertion detection pin
DigitalIn SDDetect(P2_2, PullUp);


/// DigitalOut for CS
DigitalOut cs(P5_6);
/// SPI Master 2 with SPI0_SS for use with MAX30001
SPI spi(SPI2_MOSI, SPI2_MISO, SPI2_SCK); // used by MAX30001
/// SPI Master 1
QuadSpiInterface quadSpiInterface(SPI1_MOSI, SPI1_MISO, SPI1_SCK,
                                  SPI1_SS); // used by S25FS512
///Debug port
Serial debug(USBTX, USBRX);

///
/// Devices
///

/// External Flash
S25FS512 s25fs512(&quadSpiInterface);
/// ECG device
MAX30001 max30001(&spi, &cs);
InterruptIn max30001_InterruptB(P5_5);
InterruptIn max30001_Interrupt2B(P5_4);


/// HSP platform LED
HspLed hspLed(LED_RED);
/// Packet TimeStamp Timer, set for 1uS
Timer timestampTimer;
/// HSP Platform push button
PushButton pushButton(SW1);

int main() {
  
  //boost baudrate so we can get messages while running gui
  debug.baud(115200);
  
  // local input state of the RPC
  int inputState;
  // RPC request buffer
  char request[128];
  // RPC reply buffer
  char reply[128];

  // display start banner
  debug.printf("Maxim Integrated mbed hSensor %d.%d.%d %02d/%02d/%02d\n", 
    VERSION_MAJOR, VERSION_MINOR, VERSION_PATCH, 
    VERSION_MONTH, VERSION_DAY, VERSION_SHORT_YEAR);
  fflush(stdout);

  // turn on red led
  debug.printf("Init HSPLED...\n");
  fflush(stdout);
  hspLed.on();

  // set NVIC priorities for GPIO to prevent priority inversion
  debug.printf("Init NVIC Priorities...\n");
  fflush(stdout);
  NVIC_SetPriority(GPIO_P0_IRQn, 5);
  NVIC_SetPriority(GPIO_P1_IRQn, 5);
  NVIC_SetPriority(GPIO_P2_IRQn, 5);
  NVIC_SetPriority(GPIO_P3_IRQn, 5);
  NVIC_SetPriority(GPIO_P4_IRQn, 5);
  NVIC_SetPriority(GPIO_P5_IRQn, 5);
  NVIC_SetPriority(GPIO_P6_IRQn, 5);
  // used by the MAX30001
  NVIC_SetPriority(SPIM2_IRQn, 0);

  // Be able to statically reference these devices anywhere in the application
  Peripherals::setS25FS512(&s25fs512);
  Peripherals::setUSBSerial(&usbSerial);
  Peripherals::setTimestampTimer(&timestampTimer);
  Peripherals::setHspLed(&hspLed);
  Peripherals::setPushButton(&pushButton);
  Peripherals::setMAX30001(&max30001);
  Peripherals::setSdFS(&sd);
  Peripherals::setSDDetect(&SDDetect);

  // init the S25FS256 external flash device
  debug.printf("Init S25FS512...\n");
  fflush(stdout);
  s25fs512.init();

  // start blinking led1
  debug.printf("Init HSPLED Blink...\n");
  fflush(stdout);
  hspLed.blink(1000);

  //
  // MAX30001
  //
  debug.printf("Init MAX30001 callbacks, interrupts...\n");
  fflush(stdout);
  max30001_InterruptB.disable_irq();
  max30001_Interrupt2B.disable_irq();
  max30001_InterruptB.mode(PullUp);
  max30001_InterruptB.fall(&MAX30001Mid_IntB_Handler);
  max30001_Interrupt2B.mode(PullUp);
  max30001_Interrupt2B.fall(&MAX30001Mid_Int2B_Handler);
  max30001_InterruptB.enable_irq();
  max30001_Interrupt2B.enable_irq();
  MAX30001_AllowInterrupts(1);
  max30001.max30001_sw_rst(); // Do a software reset of the MAX30001
  max30001.max30001_INT_assignment(MAX30001::MAX30001_INT_B,    MAX30001::MAX30001_NO_INT,   MAX30001::MAX30001_NO_INT,  //  en_enint_loc,      en_eovf_loc,   en_fstint_loc,
                                     MAX30001::MAX30001_INT_2B,   MAX30001::MAX30001_INT_2B,   MAX30001::MAX30001_NO_INT,  //  en_dcloffint_loc,  en_bint_loc,   en_bovf_loc,
                                     MAX30001::MAX30001_INT_2B,   MAX30001::MAX30001_INT_2B,   MAX30001::MAX30001_NO_INT,  //  en_bover_loc,      en_bundr_loc,  en_bcgmon_loc,
                                     MAX30001::MAX30001_INT_B,    MAX30001::MAX30001_NO_INT,   MAX30001::MAX30001_NO_INT,  //  en_pint_loc,       en_povf_loc,   en_pedge_loc,
                                     MAX30001::MAX30001_INT_2B,   MAX30001::MAX30001_INT_B,    MAX30001::MAX30001_NO_INT,  //  en_lonint_loc,     en_rrint_loc,  en_samp_loc,
                                     MAX30001::MAX30001_INT_ODNR, MAX30001::MAX30001_INT_ODNR);                            //  intb_Type,         int2b_Type)
  max30001.onDataAvailable(&StreamPacketUint32);

  // initialize the RPC server
  debug.printf("Init RPC Server...\n");
  fflush(stdout);
  RPC_init();
  // initialize the logging service
  debug.printf("Init LoggingService...\n");
  fflush(stdout);
  LoggingService_Init();
  // initialize the SD disk
  sd.disk_initialize();

  // start main loop
  debug.printf("Start main loop...\n");
  fflush(stdout);
  
  while (1) 
  {
    // get a RPC string if one is available
    inputState = getLine(request, sizeof(request));
    // if a string has been captured, process string
    if (inputState == GETLINE_DONE) 
    {
      //Send request to debug port
      debug.printf(request);
      // process the RPC string
      RPC_call(request, reply);
      //Send reply to debug port
      debug.printf(reply);
      // output the reply
      putStr(reply);
    }
    
    // process any logging or streaming requests
    LoggingService_ServiceRoutine();
  }
}