Specifications

Related Information
Regenerating Your BSP on page 4-30
How to Rebuild Your BSP
In the Nios II SBT for Eclipse, right-click the BSP project and click Build.
On the command line, change to the BSP directory and type make.
Regenerating Your BSP
Regenerating the BSP refreshes the BSP source files without updating the BSP settings.
What Happens
Regenerating a BSP has the following effects:
• Reads the .sopcinfo file for basic system parameters such as module base addresses and clock frequen‐
cies.
• Retrieves the current system identification (ID) from the .sopcinfo file. Ensures that the correct system
ID is inserted in the .elf file the next time the BSP is built.
• Adjusts the default memory map to correspond to changes in memory sizes. If you are using a custom
memory map, it is untouched.
• Retains all other existing settings in the BSP settings file.
Note:
Except for adjusting the default memory map, the SBT does not ensure that the settings are
consistent with the hardware design in the .sopcinfo file.
• Ensures that the correct set of BSP files is present, as follows:
• Copies all required source files to the BSP directory tree. Copied BSP files are listed in the
"Copied BSP Files" (Table 4-7).
If a copied file (such as a HAL source file) already exists, the SBT checks 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.
• Recreates all generated files. Generated BSP files are listed in the "Generated BSP Files" table
(Table 4-6).
Note:
You can disable generation of any BSP file in the BSP Editor, or on the command line with the
set_ignore_file Tcl command. Otherwise, changes you make to a BSP file are lost when you
regenerate the BSP. Whenever possible, use BSP settings, or custom device drivers or software
packages, to customize your BSP.
• Removes any files that are not required, for example, source files for drivers that are no longer
in use.
When to Regenerate Your BSP
Regenerating your BSP is required (and sufficient) in the following circumstances:
4-30
How to Rebuild Your BSP
NII5V2
2015.05.14
Altera Corporation
Nios II Software Build Tools
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