SparkFun Forums

[rightphalange]

Hello,

I have been using Arduino Yun with MPU 9250. I am supposed to perform only acceleration and temperature acquisition at 1khz. I could not manage to achieve it with I2C. All I could obtain was 0.4khz. So I decided to use SPI but at this point the connection fails and it returns an error. It is because I kept the connections for I2C.

Since I could not find enough article, I failed to make proper connections for SPI. How can I make the connections? Can I reach 1khz with I2C without dealing with SPI?

Thank you!

The error is the following;

IMU initialization unsuccessful
Check IMU wiring or try cycling power
Status: -1



and here is the code I am using;


#include "MPU9250.h"

// an MPU9250 object with the MPU-9250 sensor on SPI bus 0 and chip select pin 10
MPU9250 IMU(SPI,10);
int status;

void setup() {
// serial to display data
Serial.begin(115200);
while(!Serial) {}

// start communication with IMU
status = IMU.begin();
if (status < 0) {
Serial.println("IMU initialization unsuccessful");
Serial.println("Check IMU wiring or try cycling power");
Serial.print("Status: ");
Serial.println(status);
while(1) {}
}
}

void loop() {
// read the sensor
IMU.readSensor();
// display the data
Serial.print(IMU.getAccelX_mss(),6);
Serial.print("\t");
Serial.print(IMU.getAccelY_mss(),6);
Serial.print("\t");
Serial.print(IMU.getAccelZ_mss(),6);
Serial.print("\t");
Serial.print(IMU.getGyroX_rads(),6);
Serial.print("\t");
Serial.print(IMU.getGyroY_rads(),6);
Serial.print("\t");
Serial.print(IMU.getGyroZ_rads(),6);
Serial.print("\t");
Serial.print(IMU.getMagX_uT(),6);
Serial.print("\t");
Serial.print(IMU.getMagY_uT(),6);
Serial.print("\t");
Serial.print(IMU.getMagZ_uT(),6);
Serial.print("\t");
Serial.println(IMU.getTemperature_C(),6);
delay(100);
}