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Resolved SimTools memory map interface

Discussion in 'SimTools DIY Version' started by telesimke, Feb 26, 2017.

  1. telesimke

    telesimke New Member Gold Contributor

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    Hi!

    I have a problem with memory map not writing sensible data to the memory map. Has anyone got memorymap working?

    My setup:
    upload_2017-2-26_16-24-38.png

    upload_2017-2-26_16-25-26.png

    Output seems OK

    upload_2017-2-26_16-26-38.png

    This is what I recive on the other side from memory map

    upload_2017-2-26_16-28-17.png

    <code>
    mmf = MemoryMappedFile.OpenExisting("simtools_memorymap");

    MemoryMappedViewAccessor accessor = mmf.CreateViewAccessor(0, 128, MemoryMappedFileAccess.Read);

    int fl = accessor.ReadInt32(0);
    int fr = accessor.ReadInt32(4);
    int rl = accessor.ReadInt32(8);
    int rr = accessor.ReadInt32(12);

    Console.WriteLine($"{fl},{fr},{rl},{rr}");

    </code>

    BR upload_2017-2-26_16-24-38.png upload_2017-2-26_16-25-26.png

    Attached Files:

    • Winner Winner x 1
    telesimke, Feb 26, 2017
    #1
  2. yobuddy

    yobuddy Well-Known Member Staff Member Moderator SimAxe Beta Tester SimTools Developer Gold Contributor

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    Hi @telesimke,
    For testing purposes, will you please set your Output - Bit Range to 8 bit.
    And please set your axis mixing like this.
    This way we are just sending the output of one dof and It will be easier to see what's happening.
    1.jpg

    Now run the test again and see what you get buddy!
    yobuddy
    • Informative Informative x 1
    yobuddy, Feb 27, 2017
    #2
  3. telesimke

    telesimke New Member Gold Contributor

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    Hi youbuddy!

    I did like you asked and also set the Axis limiting to 8, 20 and 50%. The output still does not reflect actual forces
    upload_2017-2-27_16-52-29.png

    I changed the accessor read to "accessor.ReadSByte(0);"

    BR
    telesimke, Feb 27, 2017
    #3
  4. telesimke

    telesimke New Member Gold Contributor

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    Hi i see that you are the author of memorymap interface!
    Could you send me the source code so I can do a debug?
    BR
    telesimke, Feb 27, 2017
    #4
  5. yobuddy

    yobuddy Well-Known Member Staff Member Moderator SimAxe Beta Tester SimTools Developer Gold Contributor

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    @telesimke
    Please remove the axis limiting so we get numbers I don't have to do math for.
    The screen shot above does noting to tell me what is happening as I have no idea what your inputs are at the time of the screen shot.

    Please remove the axis limiting, and when you startup Output Testing, you should see all 127 for outputs?
    Please try this and see what you get.

    Also, why not just use decimal as the output type just for testing?
    It just takes one more possible problem out of the equation.
    (binary is the fastest way to send the data thou)
    yobuddy
    yobuddy, Feb 27, 2017
    #5
  6. telesimke

    telesimke New Member Gold Contributor

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    Hi!

    Here is the output from 8bit decimal with the car not moving(output is showing slight movement of the axes) and all 12 axes are being read.
    upload_2017-2-27_22-42-20.png

    br
    telesimke, Feb 27, 2017
    #6
  7. yobuddy

    yobuddy Well-Known Member Staff Member Moderator SimAxe Beta Tester SimTools Developer Gold Contributor

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    I really don't have enough information as to how you got the output you did above.
    So lets try this with an example, I think it may be easier.

    First Setup an output like this.
    MMF_How2Setup.jpg

    Now you can use my Memory Map Example App to get you started.
    Gui.jpg

    Please set this thread to resolved should this get you going buddy
    Hope this helps!
    yobuddy

    Download the Starter App Here:

    Attached Files:

    • Like Like x 1
    • Informative Informative x 1
    yobuddy, Feb 28, 2017
    #7
  8. telesimke

    telesimke New Member Gold Contributor

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    The first axis seems to be corrupted because it will be of value "0\9". All the other axis are fine.
    BR
    telesimke, Feb 28, 2017
    #8
  9. yobuddy

    yobuddy Well-Known Member Staff Member Moderator SimAxe Beta Tester SimTools Developer Gold Contributor

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    I did all my testing with Axis1a included.
    I did not see any problems.
    Please show me how to reproduce the error your seeing, or I have no way of even being able to look at the problem you are seeing buddy.
    yobuddy
    yobuddy, Mar 1, 2017
    #9
  10. telesimke

    telesimke New Member Gold Contributor

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    Hi!
    It baffled me too because your code was running smoothly and mine kept getting exceptions. Eventually I realised that your code does not try to parse to int.
    But if you try to parse axis1 to int you will get an exception after a few seconds.
    Funny thing is that it only effects Axis1. If I move my four axis one step up it runs smoothly.

    p.s. I would love to implemet binary output using at least 10 bits. I'm out of luck here so please share a few words on that subject

    Thank you for your support so far!
    BR
    telesimke, Mar 1, 2017
    #10
  11. smallmadtv

    smallmadtv The Astrophotgrapher Gold Contributor

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    My Motion Simulator:
    2DOF, 3DOF, Arduino, 4DOF, 6DOF

    Hi I just download Visual Studio and try to compile it.
    But when I run the app, I don't have any number displayed.

    See here:
    upload_2021-1-1_12-47-52.png


    this is my setup:
    upload_2021-1-1_12-48-40.png

    Any idea, where I can find the file? Maybe I need to store the app in a specific folder? like Simtool?

    Thx for any reply!

    FYI, this is just a casual investigation on the different interface type...

    Attached Files:

    smallmadtv, Jan 1, 2021
    #11