What do you have to do to make projects in NIOS II Software Build Tools for Eclipse pick up on changes made to a NIOS II System in Quartus II/QSYS? I have changed and added components to my system in QSYS and can't figure out how to get projects to pick up on the changes in Eclipse. The System.h file gets updated with the new/changed components, but I am unable to use any of the constants that are created in that file. The only way I have found is to create a new project in Eclipse using the sopcinfo file. Is there a way to force an existing project to update?

Thanks for the solution! I actually had this exact same problem and the right click -> index -> rebuild fixed it. Does anyone know why the clean/build project functionality doesn't correctly pull in changes from system.h?

If the system.h file is being updated, it sounds like you must be correctly updating the BSP. If not, right click on the BSP -> Nios II -> Generate BSP. That should pull in the changes from the regenerated Qsys system. It has always updated Eclipse for me. Hope this helps...

I had regenerated the BSP. The system.h file did update, but I was unable to use the newly added constants in the# defines. For example, I had added another UART to my NIOS II system and the system.h file had updated with a bunch of contants, such as the baud and the base, but when I tried to use them in my main .c file, they were unrecognized.

Hmm, I'm sorry, I haven't seen that before. In the BSP editor on the main tab, can you select the UART as the target for stderr, etc.? Does cleaning the project help at all? Sorry, I'm just grasping at straws here to be honest. Like you, I don't see any reason why main.c shouldn't have visibility of the changes in system.h.

Are you sure your application project is pointing to the correct BSP? As long as it includes the correct system.h there is no reason why it couldn't find the constants. Did you check that the constant names are rigorously identical?

Updating Eclipse Project Upon NIOS II System Change

13 Replies

Altera_Forum
Honored Contributor
9 years ago
1. Initialize Eclipse workspace
2. Create a new software project in the SBT
Configure the Board Support Package
Configure BSP Project Build Properties
Add source code to the project
Configure Application Project Build Properties
Define Application Include Directories
Compile, Download and Run the Software Project

2. Verify the Board Connection

3. Run the Software Project on the Target
Altera_Forum
Honored Contributor
9 years ago
--- Quote Start ---
1. Initialize Eclipse workspace
2. Create a new software project in the SBT
Configure the Board Support Package
Configure BSP Project Build Properties
Add source code to the project
Configure Application Project Build Properties
Define Application Include Directories
Compile, Download and Run the Software Project

2. Verify the Board Connection

3. Run the Software Project on the Target

-----

--- Quote End ---

Again, you missed the subject of the thread.
The question was how to update nios ii eclipse project upon on modification in qsys and not to how to create new nios ii eclipse project (that is perfectly described in Nios II Classic Software Developer's Handbook).

From my experience there are 2 cases:
with minor modifications in qsys
with major modifications in qsys

With minor modifications (e.g. if there are no changes in qsys instantiation in the top module) it's quite simple: rebuild bsp (with modified .sopcinfo) and rebuild application.
In the 2nd case (e.g. if qsys instantiation should be modified ... and probably also system interface (i.e. external ports)), the better approach is as follows:
Qsys: Make modification in qsys and save it under new name
Quartus: Instantiate new qsys in the top module (commenting former one), add it to the project and remove former one
Quartus: In the top module adjust (if necessary) external ports
Quartus: Compile new system and program device with modified .sof
Eclipse: generate new bsp
Eclipse: in application properties point to the new bsp

This way the old system version is kept and can be easily "reincarnated"

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Updating Eclipse Project Upon NIOS II System Change

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