Dan_Yang
Newbie level 5
Hi,
I used the ddc file from DCT, and executed floorplan and placement. Timing slack after DCT is tolerable(0.6), while after placement is 8.2.
Here are what i did.
1. created_fp_placement -effort high
2. place_opt -spg -optimize_dft -area_recovery -power
3. run" incremental opt"
And here are my questions:
(1) what else can I do to minize timing slack
(2) what the placement is based on? i mean how does icc know where to put a specific cell. Since I doubt whether I missed set timing constraints for it,( like sdc in DC&DCT).
Looking forward to your kind help!
I used the ddc file from DCT, and executed floorplan and placement. Timing slack after DCT is tolerable(0.6), while after placement is 8.2.
Here are what i did.
1. created_fp_placement -effort high
2. place_opt -spg -optimize_dft -area_recovery -power
3. run" incremental opt"
And here are my questions:
(1) what else can I do to minize timing slack
(2) what the placement is based on? i mean how does icc know where to put a specific cell. Since I doubt whether I missed set timing constraints for it,( like sdc in DC&DCT).
Looking forward to your kind help!