hello every one
im using Pulse Express Pulse-Ox & Heart Rate Sensor with MAX32664
with my arduino MEGA 2560
every time i connect the sensor and open serial monitor it says "Could not communicate with the sensor! please make proper connections"
but same connections on arduino uno works and post data on my serial monitor just fine
what i can do to make it work with my arduino MEGA 2560
the code 
#include <Wire.h>
#include "max32664.h"
#define RESET_PIN 04
#define MFIO_PIN 02
#define RAWDATA_BUFFLEN 250
max32664 MAX32664(RESET_PIN, MFIO_PIN, RAWDATA_BUFFLEN);
void mfioInterruptHndlr(){
//Serial.println("i");
}
void enableInterruptPin(){
//pinMode(mfioPin, INPUT_PULLUP);
attachInterrupt(digitalPinToInterrupt(MAX32664.mfioPin), mfioInterruptHndlr, FALLING);
}
void loadAlgomodeParameters(){
algomodeInitialiser algoParameters;
/* Replace the predefined values with the calibration values taken with a reference spo2 device in a controlled environt.
Please have a look here for more information, https://pdfserv.maximintegrated.com/en/an/an6921-measuring-blood-pressure-MAX32664D.pdf
https://github.com/Protocentral/protocentral-pulse-express/blob/master/docs/SpO2-Measurement-Maxim-MAX32664-Sensor-Hub.pdf
*/
algoParameters.calibValSys[0] = 120;
algoParameters.calibValSys[1] = 122;
algoParameters.calibValSys[2] = 125;
algoParameters.calibValDia[0] = 80;
algoParameters.calibValDia[1] = 81;
algoParameters.calibValDia[2] = 82;
algoParameters.spo2CalibCoefA = 1.5958422;
algoParameters.spo2CalibCoefB = -34.659664;
algoParameters.spo2CalibCoefC = 112.68987;
MAX32664.loadAlgorithmParameters(&algoParameters);
}
void setup(){
Serial.begin(57600);
Wire.begin();
loadAlgomodeParameters();
int result = MAX32664.hubBegin();
if (result == CMD_SUCCESS){
Serial.println("Sensorhub begin!");
}else{
//stay here.
while(1){
Serial.println("Could not communicate with the sensor! please make proper connections");
delay(5000);
}
}
bool ret = MAX32664.startBPTcalibration();
while(!ret){
delay(10000);
Serial.println("failed calib, please retsart");
//ret = MAX32664.startBPTcalibration();
}
delay(1000);
//Serial.println("start in estimation mode");
ret = MAX32664.configAlgoInEstimationMode();
while(!ret){
//Serial.println("failed est mode");
ret = MAX32664.configAlgoInEstimationMode();
delay(10000);
}
//MAX32664.enableInterruptPin();
Serial.println("Getting the device ready..");
delay(1000);
}
void loop(){
uint8_t num_samples = MAX32664.readSamples();
if(num_samples){
Serial.print("sys = ");
Serial.print(MAX32664.max32664Output.sys);
Serial.print(", dia = ");
Serial.print(MAX32664.max32664Output.dia);
Serial.print(", hr = ");
Serial.print(MAX32664.max32664Output.hr);
Serial.print(" spo2 = ");
Serial.println(MAX32664.max32664Output.spo2);
}
delay(100);
}