Teledyne-lecroy Protocol Analyzers File-Based Decoding User Manual Manuale Utente Scaricare il pdf (Pagina 65)

File-based Decoding User Manual

LeCroy Corporation 59

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 las

t 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.

cfg.dec Configuration data script decoder

io.dec IO data script decoder

mem.dec Memory data script decoder

msg.dec Message data script decoder

atomop.dec Atomic Operation data script decoder

Decoder Script File Function

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Teledyne-lecroy Protocol Analyzers File-Based Decoding User Manual Manuale Utente Pagina 65