Parallel bus debugging tool
First Claim
Patent Images
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.
7 Assignments
0 Petitions
Accused Products
Abstract
A system and method for testing the signals on a parallel communication bus uses a single printed circuit board that connects to the bus. The signals from the bus may be passively and actively filtered prior to a multiplexer. The multiplexer may be controlled by a variety of inputs, including communications over a second bus by a remote device. The output of the multiplexer is one or more probe points that may be connected to a measurement device.
-
Citations
26 Claims
-
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. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
-
-
19. A switchable probe board for probing a parallel bus comprising:
-
a first means for connecting to said parallel bus;
a plurality of second means for preparing said signals in a fixed filter and an adjustable filter circuit, each of said plurality of second means corresponding to individual signals of said parallel bus, said plurality of second means being electrically communicated to said first means;
a third means for probing a signal;
a fourth means for selectively connecting one of said plurality of second means to said third means; and
a fifth means for controlling said fourth means, said fifth means having an input;
wherein said switchable probe board is a single printed circuit board. - View Dependent Claims (1, 2, 3, 4, 5, 6, 7, 8, 9, 20, 21, 22, 23, 24, 25, 26)
-
-
25-1. The switchable probe board of claim 19 wherein said parallel bus is a PCI bus.
Specification