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3 Porting a BSP to Custom Hardware

3.3 Finalizing Your BSP

Wind River Workbench User’s Guide (or, for Tornado users, the Tornado User’s Guide)

for more information on command-line setup and capabilities.

For a complete information regarding the target.ref file, see B. Documentation

Guidelines.

Updating target.nr Documentation Files

Many existing BSPs used an older format documentation file called target.nr to

describe the hardware configuration. This file uses a different markup syntax than

the target.ref documentation file.

There is a utility called mg2ref supplied with your VxWorks installation to convert

from older target.nr files to the newer target.ref format. If your reference BSP still

uses a target.nr file, the mg2ref output for the reference BSP target.nr file can be

used as a starting point for writing the target.ref file for your new BSP. However,

the target.nr file itself should not be used as a reference, nor should the nroff or

troff commands used for target.nr markup be used in new documentation files.

For more information on converting target.nr files to target.ref format, see

B.7 Converting target.nr Files, p.170.

3.3.9 Providing Additional Optional Device Support

Although not truly required for a functional VxWorks kernel, a BSP is not generally

considered usable unless it supports, at a minimum, a system clock, a serial port,

and an Ethernet interface. The routines required for the system clock and serial

port(s) have already been discussed (see 3.2.10 Minimum Required Drivers, p.70,

and 3.2.11 Serial Drivers, p.71, respectively). Support for the Ethernet interface and

other optional drivers are discussed in the following sections.

Adding Ethernet Devices

The network stack currently requires that Ethernet devices be initialized by calling

the devEndLoad( ) routine that is provided by each driver—for example,

fei82557EndLoad( ) is provided by the fei enhanced network driver (END). The

NOTE: The conversion tool used to convert target.ref files, apigen for VxWorks 6.0

users or refgen for VxWorks 5.5 users, is fully backward compatible with target.nr

files. However, Wind River does not recommend using the syntax used in target.nr

files for new or updated BSPs.

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