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I need these pins for the ezDSP TMS320VC5505

Timothy Sapio
Intellectual 310 points


http://imgur.com/RXQQQ

They are referred to in the documentation as "test pins". They are not the standard pin size that everyone else in the world uses, and there are no part numbers mentioned in the documentation. How do I turn these holes for pins into pins???

  • 0
    Expert 1215 points

    I suppose these test points are intended to be used with oscilloscope probes rather than as holes for pindeader.

     

    regards

    MS

  • 0
    Expert 1135 points

    You're solution requires both a software solution and a hardware solution.

    The software will need to configure pins for GPIO operation. You'll need to properly set the pin multiplexing state bits EBSR.Axx_MODE in addition configure the GPIO pin direction, pullup, etc. Some of the pins such as CLKOUT are fixed function and you'll need ton configure that pin to output the desired clock.

    For the hardware recommendation I have 3 potential for you. Note. I have recommended Samtec based on past experience and their easy to use website. However, you can likely find equivalent solutions from other vendors such as Hirose, Amp, and the like.

    1. Use a 0.1" header in each individual hole. I am unable to determine the spacing between the pins. If the spacing is greater than 0.1" then you'll likely need to use an xacto knife or side cuts to separate the individual pins. If the spacing is less then 0.1" you might be better off with a different connector with 0.05" spacing or something else.

    http://www.samtec.com/ProductInformation/TechnicalSpecifications/Overview.aspx?series=TSW

    2.  Get a cable assembly such as :

    http://www.samtec.com/ProductInformation/TechnicalSpecifications/Overview.aspx?series=IDSD

    I'd cut of one end of the cable and solder each wire directly to each hole.

    3. Build your own discrete wire cable assembly using something like:

    http://www.samtec.com/ProductInformation/TechnicalSpecifications/Overview.aspx?series=IDSS

     

     

  • 0 in reply to Danimal
    Intellectual 310 points

    :( Not exactly the answer I was looking for, but I guess it will do. Design decisions like this really make me upset. Would it have killed them to put those holes the standard spacing apart or at least make a pin header themselves? They did on the MSP 430...