Specifications

Details of BSP Creation
BSP creation is the same in the Nios II SBT for Eclipse as at the command line. The nios2-bsp-create-
settings utility creates a new BSP settings file.
For more information about BSP settings files, refer to the “BSP Settings File Creation” chapter.
nios2-bsp-generate-files creates the BSP files. The nios2-bsp-generate-files utility places all source files
in your BSP directory. It copies some files from the Nios II EDS installation directory. Others, such as
system.h and Makefile, it generates dynamically.
The SBT manages copied files slightly differently from generated files. If a copied file (such as a HAL
source file) already exists, the tools check the file timestamp against the timestamp of the file in the Nios II
EDS installation. The tools do not replace the BSP file unless it differs from the distribution file. The tools
normally overwrite generated files, such as the BSP Makefile, system.h, and linker.x, unless you have
disabled generation of the individual file with the set_ignore_file Tcl command or the Enable File
Generation tab in the BSP Editor. A comment at the top of each generated file warns you not to edit it.
For more information about set_ignore_file and other SBT Tcl commands, refer to Software Build
Tools Tcl Commands in the "Nios II Software Build Tools Reference" chapter.
Note: Avoid modifying BSP files. Use BSP settings, or custom device drivers or software packages, to
customize your BSP.
NII5V2
2015.05.14
Details of BSP Creation
4-19
Nios II Software Build Tools
Altera Corporation
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