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Topic: read vector NAV IMU using SPI (Read 835 times) previous topic - next topic

surajcs

Hi,

I have a vectornav IMU VN100 which i am using to read sensor data through serial port which is working fine.

when i read the same from SPI i am not getting any output. I am using Arduino DUE

below is my code

#include <SPI.h>
/*
code to read vectornav data via an arduino DUE SPI pins
*/
int attitude[16]; // yaw, pitch, & roll
const int slaveSelectPin = 10; //52 or 4 or 10
void setup()
{
  Serial.begin(38400);
  SPI.begin(slaveSelectPin);

}

void loop()
{
      attitude[0] = SPI.transfer(slaveSelectPin, 0x01, SPI_CONTINUE);
     
      attitude[1] = SPI.transfer(slaveSelectPin, 0x08, SPI_CONTINUE);
     
      attitude[2] = SPI.transfer(slaveSelectPin, 0x00, SPI_CONTINUE);
     
      attitude[3] = SPI.transfer(slaveSelectPin, 0x00, SPI_CONTINUE);
     
      attitude[4] = SPI.transfer(slaveSelectPin, 0x00, SPI_CONTINUE);
     
      attitude[5] = SPI.transfer(slaveSelectPin, 0x00, SPI_CONTINUE);
     
      attitude[6] = SPI.transfer(slaveSelectPin, 0x00, SPI_CONTINUE);
     
      attitude[7] = SPI.transfer(slaveSelectPin, 0x00, SPI_CONTINUE);
     
      attitude[8] = SPI.transfer(slaveSelectPin, 0x00, SPI_CONTINUE);

      attitude[9] = SPI.transfer(slaveSelectPin, 0x00, SPI_CONTINUE);

      attitude[10] = SPI.transfer(slaveSelectPin, 0x00, SPI_CONTINUE);

      attitude[11] = SPI.transfer(slaveSelectPin, 0x00, SPI_CONTINUE);

      attitude[12] = SPI.transfer(slaveSelectPin, 0x00, SPI_CONTINUE);

      attitude[13] = SPI.transfer(slaveSelectPin, 0x00, SPI_CONTINUE);

      attitude[14] = SPI.transfer(slaveSelectPin, 0x00, SPI_CONTINUE);

      attitude[15] = SPI.transfer(slaveSelectPin, 0x00);


       for (int i = 0; i < 16; i++)
      {
        Serial.write(attitude);
      }
}

So with the above code I'm just trying to get attitude vales (heading, pitch, roll). The message I'm sending is:

01 08 00 00 00 00 00 00 00 00 00 00 00 00 00 00

but the answer is also the same

Any advice?

http://www.vectornav.com


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