Honored ContributorHello all!
I am pretty sure this topic is pretty much covered until now but it seems that I was in vacation. So, I have a 150MHz clock that clocks my data and I need to pass that data to a register clcoked at a 100MHz clock but I seem to get a timing error. Is there any standard way to do that? Thanks in advance
Honored ContributorYes, there are standard ways ...
http://www.edn.com/design/systems-design/4333702/crossing-the-abyss-asynchronous-signals-in-a-synchronous-world Cheers, DaveHonored ContributorUse an asynchronous FIFO, for multiple bit data this is the savest way.
Honored ContributorWow Dave that was a really interesting article!!! Thanks to schmalisch too!
As I see it, if I go develop a new handshaking logic then I think that I reinvent the wheel so I will go for the asynchronous FIFO. I am pretty sure ALTERA IP already has this thingy but I couldnt find it. So how can I instantiate an ALTERA asynchronous FIFO? Is it through the MegaCore? Thanks again!Honored ContributorYou are right, the FIFO IP cores can be found in the MegaCore Wizard.
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