BSP Developer's Guide

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BSP Organization
Files in the target/config/bspname Directory
The target/config/bspname subdirectory contains the system or
hardware-dependent files for the BSP.
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README
The README file contains the BSP release record. It records each release version
and revision and documents work done on the BSP as a whole. This file was first
introduced with Tornado 1.0.
Makefile and depend.bspname
The makefile controls the building of images from the command line. Beginning
with VxWorks 5.2, the standard make utility was GNU make, and the current
make technology continues to use many of the advanced features available in
GNU make. The BSP make system includes make subfiles located in the
target/h/make directory. If a dependencies file does not already exist, make
automatically generates a depend.bspname file that it uses to track all module
dependencies. The depend.bspname dependency file is not shipped with the BSP, it
is a generated file. For more information on customizing the makefile, see the
Tornado User’s Guide, 2.2.
Within the makefile, you must define the following macros:
CPU
The target CPU architecture (for example, MC68040).
TOOL
The host tool chain (for example, gnu).
TARGET_DIR
The target directory (BSP) name.
VENDOR
The target manufacturer’s name.
BOARD
The target name.
ROM_TEXT_ADRS
Specifies the boot ROM entry address in hexadecimal. For most boards, this is
set to the beginning of the ROM address area. However, if your hardware
configuration uses an area at the start of ROM for the reset vector, you should
offset accordingly.
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