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Embedded Design Testing

Former Member

Hi,

 

I hope this discussion is in the right group but here goes...

 

I have recently started using Perl on my PC to auotmattically test serial features of my embedded designs. It works really well, but the designs do not just have serial I/O, but have Analogue and Digital I/O, which means I cannot test the whole design.

 

Thinking about solving the problem, I though the same Perl test program could also talk to a 'Smart' Test Harness in addition to the serial communication direct to the embedded design under test. It would be a good project to do, a micro with I/O interface circuits, some kind of serial software interface that would allow for control the I/O. But I do not have time, and I am sure other people do this kind think.

 

I know about the NI equipment and Labview, but that would be overkill for my applications.

 

What do others in this group use for their automated testing of their designs? Is there an a relative inexpensive device that would fit my needs?

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    Thanks Michael & DAB for your replys,

     

    The LabJack looks like it is what I am after, and there is even a Perl module for it image

     

    DAB:

     

    We already have a number of test rigs for production testing and yes it does take a lot longer than one expects to make one. Also the importance of having a golden device to test the test rig against.

     

    I was after something more for software acceptance testing and in particular specific application testing.  So having something that is more versatile is an advantage.

     

    Sorry I was not more clear in my initial question.

     

    Ross

  • 0 in reply to Former Member

    Hi Ross,

     

    No problem.  As you can tell from my post, testing issues is one of my hot buttons.

    You are correct that you can take some off the shelf hardware and build up some very simple testing generators.  I have done this type of simple testing on a lot of devices.  As long as you just need some simple signals to trigger events, it is perfectly adequate.

     

    It would be nice if someone could start an open hardware testing rig with simple outputs.  You could easily do most of these with an Arduino or other inexpensive MCU.  All you need is to build up some hardware circuits to widen the range of interfaces you need to drive and you would have a simple and easy to program test generator.

     

    Just a thought,

    DAB

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  • 0 in reply to Former Member

    Hi Ross,

     

    No problem.  As you can tell from my post, testing issues is one of my hot buttons.

    You are correct that you can take some off the shelf hardware and build up some very simple testing generators.  I have done this type of simple testing on a lot of devices.  As long as you just need some simple signals to trigger events, it is perfectly adequate.

     

    It would be nice if someone could start an open hardware testing rig with simple outputs.  You could easily do most of these with an Arduino or other inexpensive MCU.  All you need is to build up some hardware circuits to widen the range of interfaces you need to drive and you would have a simple and easy to program test generator.

     

    Just a thought,

    DAB

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