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Altera_Forum
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14 years ago

Multi NIOS2 system Custom instruction opcode reuse problem in QSys

I'm currently using Qsys version 11.0, Build 157. Currently I have a system that consists of two NIOS2 processors and they are both connected to their own custom instruction component. As far a...
Altera_Forum's avatar
Altera_Forum
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14 years ago

It is also shame you can't select the number for each custom instruction.

If I have several custom instructions, I'd much rather use the a fixed number for each as it makes the compiler setup somewhat easier.

I suspect you get a duplicate symbol problem if you have 2 (or more) nios that contain the same custom instruction (name & vhdl) with different numbers.