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VxWorks

BSP Developer’s Guide, 6.0

VME_A24_MSTR_SIZE, VME_A16_MSTR_LOCAL, and VME_A16_MSTR_SIZE must

be defined. However, this requirement can vary depending on the specific VME

controller driver used. Other configuration—such as data width, cycle type, and

other VME-specific details—may also be required. Refer to the VME bus controller

driver for information on exactly what routines must be called during initialization

and what macros must be defined.

The sysBusTas( ) routine is required by the BSP. For boards with a VME bus and

no other bus containing memory, the sysBusTas( ) routine is provided by the VME

bus controller. However, for more complex busses, a custom version of this routine

may be required. In the case of a single board computer, or other simple board

without a complex bus structure, nullVme.c can be used to include sysBusTas( )

and other utility stub routines.

USB Bus Interface Support

VxWorks support for USB is provided as an optional product that supports USB

either as a host or as a device. For current information, refer to the Wind River USB

documentation and your product release notes.

3.3.8 Updating BSP-Specific Documentation

A BSP is not generally considered complete until the BSP-specific user

documentation file, target.ref, is updated. As a general rule, an updated target.ref

file should be available before the BSP is used for any application development.

For target hardware that is developed for “in-house” or internal use only, the

documentation may be required early in the development process.

Once the core BSP is working and contains the bus support that is required for

additional device drivers, it is good idea to update or create the target.ref file. The

documentation file can also include information for any expected optional drivers

and their current level of support. As support for each driver is added and tested,

the target.ref file should be updated as appropriate.

During application development, the target.ref file can be processed and made

available from the IDE (in standard HTML format) by issuing a make man

command from a command or shell window in the BSP directory. See the

NOTE: Wind River does not currently offer the kind of plug-and-play support

published in the VME-64 specification and its extensions.

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RAM 6.0 BUX II Series Guía de usuario Pagina 106