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Hi,
I recently received Nios-II update package. When trying to open a VHDL source in cpu.vhd, I got the following message. "Can't open encrypted file "C:\altera\kits\nios2\examples\vhdl niosII_stratix_1s10\standard\cpu.vhd" -- license file support for this file includes compilation support, but does not include viewing support" I am using Quartus-II version 4.2 with two entries in the "Licensed AMPP/MegaCore functions" listing. Note that I have no problem viewing other VHDL files in the same directory. I sent email to Altera for help but have not heard back from them for a week now. Well, I actually got this lame reply today. > Date: Fri, 25 Feb 2005 08:10:50 -0800 > Subject: RE: your mail > > Are you still having problems? Have you tried our customer support > e-mail line? Did you try to install the license twice? > > We want to help you. Can anyone help? Thanks, AngkulLink Copied
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The Nios II CPU is encrypted by design... having an ordinary license to use Quartus/Nios II does not remove this encryption. Note that RTL simulation support is provided.
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Thanks for a quick response. Does it mean that I cannot add anything to Nios-II CPU?
I added a branch predictor in Nios-I and would like to test it on Nios-II. What additional license do I need? Note that I already have two licenses for Megacore Functions.- Mark as New
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I am on the engineering side now so I'm not really sure how we handle license requests for the non-encrypted core (as is done for other IP as you indicate). My reccomendation would be to talk to your FAE/sales person about it.
BTW: The Nios II/f core does include branch prediction. I am not well studied on how this is actually implemented but I recall that there is a short discussion of it in the Nios II CPU documentation.- Mark as New
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Hummm, you want to add a branch predictor. You could always just modify the perl code used
to generate the RTL. Look in c:\altera\kits\nios2\components\altera_nios2\*.pm. Note that all the comments are stripped out (replaced with empty lines).
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