Teledyne-lecroy LeCroy Analyzers File Based Decoding Manual Manual do Utilizador descarregar pdf (Página 67)

File-based Decoding User Manual

LeCroy Corporation 61

Appendix A: PCI Express

The information in this appendix is specific to the PETracer™ analyzer.

It is divided into two parts:

• Modules

• Decoder Script Files

A.1 Modules

Modules are a collection of functions and data dedicated to decoding a certain type of

transaction. Each module consists of one primary file (.dec), and possibly several

included files (.inc)

Module Function

A module function is used as an entry-point into a decoding module. It is called by the

application and used each time a transaction needs to be displayed.

ProcessData()

PETracer supports only the ProcessData() function. It is called with each packet of the

appropriate type with input context filled with data from that packet. It reports the amount

of processed data through the out.Decoded variable.

A.2 Decoder Script Files

PETracer includes the four script files in the \Scripts directory. You can use these files

as is or modify them.

To activate a script file, go to the last line in the file (for example, in io.dec, the line

reads: “set OutputType =”__IO”) and remove the underscore. For example:

set OutputType =”__IO”

Change to:

set OutputType =”IO”

Following is a list and brief summary of the decoder script files. The following sections

describe each file in greater detail.

Decoder Script File Function

cfg.dec Configuration data script decoder.

io.dec IO data script decoder.

mem.dec Memory data script decoder.

msg.dec Message data script decoder.

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