Get Boundary Flops list ?

Dear bougantp:

1. You can write a FE-TCL script to do this. 1st to get all the ports of your hierarchical block, the trace from this port & get all the registers, this is what you want!
2. You can report the in2reg & reg2out timing, then use some PERL or VI to achieve this. Seems not easy.

FYI

It is quiet easy to get the list of ports, but how can I do to get the associated flops ?

If you use the timeDesign command it will create timing reports with in2reg and reg2out (Don't forget to set your -numpaths high enough). From there just grab the subsequent Endpoint and Beginning to get the register names. To get more expanded information use the report_timing command with the "-path_type full_clock" option to include the clock tree. You can also use report_timing to do the first step, depending on your block size, it may be faster to time each port individually and then grep the report.

Design size is quiet big : 1200Kinstances, and number of ports is in the range of 4K to 7K, so a script based on foreach port get report timing ... might be very long (?)..

pls use dbForEachCellPort command to loop all the ports of your top cell, then get the port name and report timing according to the port directions, use report_timing -from or -to, then get all the FFs. Thre must be a ENDPOIT, I think this ENDPOINT is waht you want.
Thanls jaredlee, you give me a idea, easy than a full TCL code.