Honored ContributorHi,
I have a bus with both input and output pins, all names starting with PCI_ When writing a set_input_delay or set_output_delay I use [get_ports {PCI_*}] The compiler than generates warnings :(, because I have (also) inputs where I only should have outputs and vice versa. Can I add a filter or so to get only all inputs starting with PCI_ ? Thanks, Michael
Honored ContributorNo. (There are filters called [all_inputs] and [all_outputs] but they're not searchable.
I often do a list, so I don't have to repeat the long list, i.e.: set pci_inputs {PCI_AD* PCI_TRDY PCI_IRDY PCI_CBE*} Then use that list for all my assignments: set_input_delay -clock clk_ext -max <value> $pci_inputs set_input_delay -clock clk_ext -min <value> $pci_inputs Not exactly what you want, but it might help.Honored ContributorThank for your quick reply. I will do so. In that way it's easy to change or add assignments.
Perhaps, when writing the list I will find some (asynchronous or not used) signals which don't need an assignment at all :).Honored ContributorAlways run Report Unconstrained Paths in TimeQuest. That will tell you if you missed any I/O.
Honored ContributorMeanwhile I added the lines below
set pci_inputs {PCI_LHOLD PCI_LINTO_N PCI_LSERR_N PCI_LW_R PCI_LBE_N* PCI_LA* PCI_LAD* PCI_DPARITY*} set_input_delay -clock { PCI_CLK_FPGA } -min -2.2 $pci_inputs set_input_delay -clock { PCI_CLK_FPGA } -max 7.5 $pci_inputs but I get the warning Warning: Assignment set_input_delay is accepted but has some problems at Camtest.sdc(125): Set_input_delay/set_output_delay has replaced one or more delays on port "PCI_LA[2]". Please use -add_delay option. I get this warnig for each signal. Any idea?Honored ContributorSolved the problem: I didn't compile the project but only re-read it inside the TimeQuest analyzer. After compiling the warnings have disappeared
Honored ContributorNote that PCI_LA* encompasses PCI_LAD*. Since you have {} around the list, you can use square brackets directly inside:
set pci_inputs {PCI_LA[*] PCI_LAD[*]...} Might help avoiding unwanted matches(although that's pretty unlikely for I/O).
