Gyro Module set up on Raptor

NETMF & Gadgeteer
1

Hi, can anybody help me to figure out how to set up and use gyro module?

I use this code:


void ProgramStarted()
{
gyro.Calibrate();
gyro.MeasurementInterval = TimeSpan.FromTicks(TimeSpan.TicksPerMillisecond * 25);
gyro.MeasurementComplete += gyro_MeasurementComplete;
gyro.StartTakingMeasurements();
}
private void gyro_MeasurementComplete(Gyro sender, Gyro.MeasurementCompleteEventArgs e)
        {
    
            Debug.Print("x:" + e.X + "y:" + e.Y + "z:" + e.Z);
        }

But i dont have any values in debug window.

2

is there a start method?

3

@ Mike -
Yes of course it is. I corrected the previous post.

4

@ Alex Bilityuk - What mainboard, socket, and SDK are you using? Have you tried another socket and cable?

5

@ John -
I am using Raptor, socket 13, 4.3.6 firmware, 2014 R5 SDK, also tried different sockets and cables.

6

@ Alex Bilityuk - Your code ran fine for me on the latest pre-release. Do you have anything else connected in the designer?

7

@ John -
Nothing. Only Gyro module and small piece of code i posted. What else options do i have to dig inside my problem?

8

@ Alex Bilityuk - Do you have a logic analyzer so you can see what is happening over I2C?

9

@ John -
I rewrote the code. And this way it goes well. it sounds good for for me but any way i don’t understand the problem, why i couldn’t load the previous code?


            gyro.LowPassFilter = Gyro.Bandwidth.Hertz256;
            gyro.SampleRateDivider = 39;
            gyro.Calibrate();
            int interval = 25;
            gyro.MeasurementInterval = TimeSpan.FromTicks(TimeSpan.TicksPerMillisecond * interval);         
          
            gyro.MeasurementComplete += gyro_MeasurementComplete;
            gyro.StartTakingMeasurements();

Also can you help me to understand what do the following properties do:


 gyro.LowPassFilter = Gyro.Bandwidth.Hertz256;
 gyro.SampleRateDivider = 39;
10

@ Alex Bilityuk - Both of them work to control the internal data sampling rate. It’s hard to say why the rework fixed the issue without being able to reproduce the issue myself.

11

@ John -
Ok! Module is working and that is it… :smiley: