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Parallel bus debugging tool

  • US 20050134163A1
  • Filed: 12/08/2003
  • Published: 06/23/2005
  • Est. Priority Date: 12/08/2003
  • Status: Active Grant
First Claim
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10. A method for probing a plurality of signals on a parallel bus comprising:

  • providing a switchable probe board having a connector adapted to connect into said parallel bus, a plurality of signal paths corresponding to individual signals of said parallel bus, each of said plurality of signal paths having a passive filter, and an adjustable filter circuit, said plurality of signal paths being electrically communicated to said connector, a switch matrix connected to each of said plurality of signal paths and having at least one output, and a controller adapted to configure said switch matrix to connect one of said plurality of signal paths to said at least one output, said controller having an input, wherein said switchable probe board is a single printed circuit board;

    connecting said connector to said parallel bus;

    connecting a test device to said at least one output;

    causing said switch matrix to select a first of said plurality of signals to be connected to said at least one output by sending an input to said controller;

    measuring said first of said plurality of signals using said test device;

    causing said switch matrix to select a second of said plurality of signals to be connected to said at least one output by sending an input to said controller; and

    measuring said second of said plurality of signals using said test device.

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