RAM 6.0 BUX II Series Betriebsanweisung PDF herunterladen (Seite 32)

VxWorks

BSP Developer’s Guide, 6.0

This file is intended for constant information that is not subject to user

configuration. If any macros or values defined in this file can be changed to

customize this system, define those macros or values in config.h instead.

When developing your BSP, it is helpful to use a sample header file as a starting

point. In most cases, the sample file requires minimal modification because most

constant names, basic device addresses, and so on are already defined in the

sample file. Define the following in bspname.h:

Interrupt Vectors and Levels

Define all interrupt vectors and levels that are dictated by hardware in

bspname.h.

I/O Device Addresses

Define all I/O addresses fixed by hardware in bspname.h.

Meaning of Device Register Bits.

For on-board control registers, you define a macro value for each bit or group

of bits in each register. Place such macro definitions in bspname.h if there is no

better location (such as a device-specific header file) for them.

System and Auxiliary Clock Parameters

Define maximum and minimum rates.

sysALib.s

This file contains the RAM image’s entry point, _sysInit( ). _sysInit( ) performs

any required hardware-specific initialization before jumping to usrInit( ) in

usrConfig.c.

Any additional utility routines that must be written in assembly language and are

required during normal system operation are also contained in sysALib.s.

NOTE: In general, use the config.h file to define configurable values and the

bspname.h file to define values fixed in hardware.

NOTE: It is advisable to include macros describing all available bits, or groups of

bits in each control register, even if those bits are not used by the BSP.

1 2 ... 27 28 29 30 31 32 33 34 35 36 37 ... 188 189

Keine Kommentare

RAM 6.0 BUX II Series Betriebsanweisung Seite 32