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Problem with IRQ bridge in Platform Designer and Nios II SBT for Eclipse

Anonymous
Not applicable
131 Views

Hi, 

 

I have a simple platform designer system containing a NIOS, a custom component, an Avalon-MM bridge and an IRQ bridge. When I generate the HDL files for this system everything works without error. 

However, when I try to generate my BSP using Eclipse, the IRQ bridge does not appear in the file system.h. 

Moreover, when I generate the .tcl file for my qsys design, I have noticed that the interrupt sender port of the irq brige are instantiated as input. What can I do?

You will find the files mentioned here above as well as a screenshot of the qsys design attached to this post.

I am using quartus prime pro 20.2.

 

Thanks in advance for your help.

 

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1 Reply
AlexW1
Beginner
9 Views

In an old Qsys manual, I found a note:

Nios II BSP tools do not fully support the IRQ Bridge. Interrupts connected via an IRQ Bridge will not appear in the generated system.h file

 

I think if you really want to use that module, you'll have to make some #defines yourself. As an alternative, you can use a PIO module with an interrupt as a workaround.

 

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