Honored ContributorHello, i'confusing about the dynamic io delay chain? Is there any relationship between the dynamic io delay with the d1,d3 setting? Can I get dynamic io delay value from the resource property editor? Thank you
Honored ContributorThe fit report has a Delay Chain Summary that I usually look at, but yes, they are the same. I believe there are some example designs on the alterawiki.com. I did one called Programmable IOE Delay Chain Interface, but it was for Stratix IV and may not help:
http://www.alterawiki.com/wiki/category:design_entry_and_optimizationHonored ContributorHi Playboy,
You may refer to the device handbook -> IO chapter for further details on the delay chain of your selected device. My understanding is that you could configure the delay chain through QSF assignment (static) as well as dynamic reconfigure it.Honored ContributorYou should be able to view and also edit the IO delay chain values in resource property editor.
Honored ContributorJust to share on my understanding with IOE delay. The IOE delay ie d1, d3 are blocks in the IOE. You can refer to the Figure 6–17. IOE Structure in Stratix IV Devices of the SIV device handbook as example. The difference here would be on how user can configure the delays ie with static or dynamic method.
Honored ContributorFrom what i understand,
Is there any relationship between the dynamic io delay with the d1,d3 setting? Static and dynamic delay use the same delay block Can I get dynamic io delay value from the resource property editor? No, you cannot set the value of dynamic delay at RPE. You can only set the static delay at RPE/QSF/etc. It is fixed after compiled. Dynamic delay means it can be controlled real-time after it is compiled. Usually dynamic delay work with other circuit such as edge detection circuit, and then dynamic delay it so that it can still be clocked correctly despite PVT.
