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Honored Contributor
Honored ContributorUsing custom instruction from uCLinux user app on nios2mmu
Hello, Is it possible to use a custom instruction from an user application running on NIOS2MMU - uCLinux. I'm trying to run the CRC design example on uCLinux. When I try to compile the ...
Altera_ForumHonored Contributor
Honored ContributorIf you are going to do that, I'd make require the software have to wait itself - then you can use a combinatorial custom instruction and avoid the register file delays on the read value.
You could also use the 'rB' field as a sub-opcode (set poly, new value etc). In my case I was doing 64 channels of hdlc from a TDM stream - so had individual bytes to process. If you have a buffer, then you want a dma based engine....
