DE2-70 - DE2_70TV demonstrator is not working

Question

Hello, I have a Terasic DE2-70 board and I am trying to run the demonstrator DE2_70TV.

The .sof file that comes with the CD and the demonstrator downloaded internet is working perfectly, but if i recompile these projects and I put them again in the FPGA the image i get is noisy and with some vertical lines. :eek:

My version of Quartus II 11.1 Web edition build 173.

I would appreciate your help to solve this problem.

Thank you! :D

altera_forum · Answer

i tried with Quartus 9.1 and with Quartus 10 both versions of the demonstrator. they work ok if you compile it with the corresponding version.

But if i want to use the video decoding for another project, the same vertical lines appear. Do you know why?

Thanks!

Eze

altera_forum · Answer

Hey eze1785,  I have the same problem as you have. Do you have any solution for this problem in the meantime

altera_forum · Answer

you have to add the time constraints that come with the original program

altera_forum · Answer

Can you explain a little more about time constraints?  And can you also explain how you have add the time constraints on the DE2-70TV I cant find the orginal time constraints.

altera_forum · Answer

there are in a file DE2_70_TV.sdc

you can add from settings, assignments

• In Timing Analysis Settings, select Use TimeQuest Timing Analyzer during compilation.

• In TimeQuest Timing Analyzer add the time constrains file.

if then check the report of timing after compiling

also if you have problem read a tutorial about TimeQuest, it is short :)

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DE2-70 - DE2_70TV demonstrator is not working

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