Forum Discussion

Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
11 years ago

Timequest: -clock is not an object ID

In my sdc file I have a set_input delay command as

set_input_delay -add_delay -clock { dctu_i|a_uniphy_i|a_uniphy_inst|pll0|pll_afi_clk } -min -0.01 [get_ports { my_signal}]

I keep getting the following warning from this line

ignored set_input_delay at myfile.sdc(116): argument -clock is not an object id

If I do a report clocks, I can see the clock name

dctu_i|a_uniphy_i|a_uniphy_inst|pll0|pll_afi_clk

Anyone got any ideas why I am getting this warning?

Your help is very much appreciated

C

2 Replies

  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    11 years ago

    Run report_clocks and see if it shows up there. I usually copy from that report to make sure I get the name correct. The other possibility is that the set_input_delay is created before that clock gets generated, so the name is correct but the order isn't.

  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    11 years ago

    Rysc,

    Thanks for your reply. It is the latter that is the problem. My .sdc script order had magically changed around in the quartus settings. As I use the read sdc macro command from the left hand side of the timequest quest GUI, I think it uses the order in the Quartus settings. Problem solved now. Thanks Rysc

    C