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Honored Contributor

15 years ago

for loop in sdc file

is it possible to use for loops in the sdc file to help add constraints for multiple interfaces of the same type. For example, I have 4 ata intefaces and so it would be easier if I could have a fo...

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Honored Contributor

15 years ago

Thanks for the help, I couldn't get the first method to work but the second one does with some slight changes. I ended up with


set data_in "ATA"
append data_in $x
append data_in "_DD"

Thanks again,

Richard

BKevi
New Contributor
5 years ago
I think you can put all varibles that you want to concatenate behind the append.

for {set x 0} {$x<24} {incr x} {

set data_in {}
set dataout_h {}
set DFFLO {}

append data_in {HDMI_RX_DAT[} $x {]}
append dataout_h {ddio_rx_24b:\ddio_rx_gen:ddio_rx_24b_inst|altddio_in:ALTDDIO_IN_component|ddio_in_87i:auto_generated|dataout_h[} $x {]}
append DFFLO {ddio_rx_24b:\ddio_rx_gen:ddio_rx_24b_inst|altddio_in:ALTDDIO_IN_component|ddio_in_87i:auto_generated|ddio_ina[} $x {]~DFFLO}

eval {set_multicycle_path -from $data_in -to $dataout_h -setup } $l2h_setup_ref
eval {set_multicycle_path -from $data_in -to $DFFLO -setup } $l2l_setup_ref
eval {set_multicycle_path -from $data_in -to $dataout_h -hold } $l2h_hold_ref
eval {set_multicycle_path -from $data_in -to $DFFLO -hold } $l2l_hold_ref

}
- sstrell
  Super Contributor
  5 years ago
  This is an 11 year old post. Perhaps you wanted to create a new one?
  - BKevi
    New Contributor
    5 years ago
    @sstrell
    
    This topic was right on the top of my google search result, and it indeed solved my problems.
    
    Although it is an old one, useful to me at least, I think giving feedback is alright.