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Altera_Forum
Honored Contributor
16 years agothank you both for your useful answers.
To answer to Gopher, yes Timequest see AP0 path, and AP0 is in "Report Clock" with the same clock settings than AP1. So I check all others thing and it seems to be ok...AP0 physically work on my board...so I don't understand why it's not there... Rysc, your suggestion is very interesting, but how can I set the setup time and hold time. For example, if I want to write 2ns for my setup time and 1 ns for my hold time. Where can I do that? In Quartus assignment editor I see tsu Requirement th Requirement Input minimum delay Input maximum delay minimum delay and in Timequest I have set input delay set minimum delay set maximum delay which one to use and what is the difference? I try th and tsu requirment with my bitclock and my data. But no change in report datasheet...am I suppose to see 2ns and 1 ns in report datasheet? set_instance_assignment -name TSU_REQUIREMENT "2 ns" -from * -to AP1_BCLK_io set_instance_assignment -name TH_REQUIREMENT "1 ns" -from * -to AP1_BCLK_io set_instance_assignment -name TSU_REQUIREMENT "2 ns" -from * -to AP1_SDAT_i set_instance_assignment -name TH_REQUIREMENT "-1 ns" -from * -to AP1_SDAT_i thank you again and have a nice day!