Join Slack

Hi any idea how to fix this error?

# sky130

sangamanath

06/26/2023, 4:41 AM

Hi any idea how to fix this error?

Vijayan Krishnan

06/26/2023, 5:11 AM

Try with absolute die size. like 75x75

sangamanath

06/26/2023, 6:49 AM

core size

Vijayan Krishnan

06/26/2023, 7:25 AM

DIE_AREA 0 0 75 75 CORE_AREA 10 10 65 65

sangamanath

06/26/2023, 7:35 AM

same error

Mitch Bailey

06/26/2023, 8:15 AM

strap width + offset = 57.04 CORE_AREA is 55x55 Maybe try making it a bit larger?

sangamanath

06/26/2023, 9:02 AM

Can please tell me how to declare floorplan with this issue? in TCL file

Vijayan Krishnan

06/26/2023, 9:11 AM

Update your

config.json

and try it first

sangamanath

06/26/2023, 9:13 AM

how add strap width + offset =57.04

Vijayan Krishnan

06/26/2023, 9:13 AM

It is based on

pdn.cfg

Mitch Bailey

06/26/2023, 9:24 AM

strap width + offset = 57.04

This is just a calculation from the error messages. You probably want a design bigger than that. This might work.

Copy code

DIE_AREA 0 0 80 80
CORE_AREA 10 10 70 70

sangamanath

06/26/2023, 9:42 AM

message has been deleted

sangamanath

06/26/2023, 9:42 AM

my config

Vijayan Krishnan

06/26/2023, 9:45 AM

for smaller design use pdn offset value: https://github.com/The-OpenROAD-Project/OpenLane/blob/3bc9d02d0b34ad032921553e512fbe4bebf1d833/designs/spm/config.json#L7

👍 1

sangamanath

06/26/2023, 9:56 AM

Thank you resolved

👍 1

sangamanath

06/26/2023, 10:15 AM

target desity ?

sangamanath

06/26/2023, 10:15 AM

in pl

sangamanath

06/26/2023, 10:57 AM

yaa i used 0.73

sangamanath

06/27/2023, 5:21 AM

I have one more issue help me in cts

Vijayan Krishnan

06/27/2023, 5:26 AM

attach the

issue_reproducible

generated by the flow

sangamanath

06/27/2023, 5:36 AM

image.png

sangamanath

06/27/2023, 5:36 AM

image.png

sangamanath

06/27/2023, 5:41 AM

sdc

Vijayan Krishnan

06/27/2023, 5:43 AM

share your config.json

sangamanath

06/27/2023, 5:48 AM

image.png

Vijayan Krishnan

06/27/2023, 6:14 AM

use

PL_TARGET_DENSITY

as 0.55

sangamanath

06/27/2023, 6:17 AM

if i use 0.55 in placement leads to error

Vijayan Krishnan

06/27/2023, 6:20 AM

Copy code

"FP_SIZING": "absolute",
    "DIE_AREA": "0 0 100 100",

set this and try again

sangamanath

06/27/2023, 6:33 AM

yes passed cts

2 Views

Open in Slack

Previous Next

What is Linen?

Linen is a search-engine friendly community platform. We offer integrations with existing Slack/Discord communities and make those conversations Google-searchable.