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VxWorks

Hardware Considerations Guide, 6.0

The particulars of how an individual architecture implements these considerations

are discussed in the VxWorks Architecture Supplement document for each

architecture. This document is a general discussion of the issues and not an

implementation-specific guide.

2. Minimum System Requirements

It is recommended that the minimum system include the following features:

■

32-bit processor

■

JTAG processor debug capability, or equivalent

■

interrupt controller

■

RAM and RAM controller (see below for minimum RAM size)

■

ROM (see below for minimum ROM size)

■

MMU

■

software controlled LEDs

■

system clock

■

high resolution timestamp counter

■

two serial ports

■

Ethernet controller

Although the above is the recommended minimum, VxWorks will run with

considerably less than specified above. Only a minimum set of features is

absolutely required for a given board to run VxWorks. This list is short: a 32-bit

processor, an interrupt controller of some kind, some kind of timer or clock, RAM

and RAM controller, and enough non-volatile memory to hold a boot image.

Although this list specifies a 32-bit processor, some 64-bit processors can be used

instead.

Note that it is not absolutely necessary to have a serial port, Ethernet device, or

other means of communication between the target board and the development

host. However, to avoid serious application development delays, it is best to

include one or two serial ports, at least one Ethernet port, and, if the processor

supports such a capability, some kind of processor debug port such as JTAG.

NOTE: All file and directory paths in this manual are relative to the VxWorks

installation directory. For installations based on VxWorks 5.x, this corresponds to

installDir. For installations based on VxWorks 6.0, this corresponds to

installDir/vxworks-6.0/.

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