Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

xc7: linux litex test: remove PCF and SDC and fix XDC constrs #238

Open
wants to merge 1 commit into
base: main
Choose a base branch
from

Conversation

acomodi
Copy link
Contributor

@acomodi acomodi commented Jan 5, 2022

This fixes #235 and #234 and supersedes #236

Signed-off-by: Alessandro Comodi [email protected]

Copy link
Contributor

@mithro mithro left a comment

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Can you make the .xdc file the exact output of LiteX?

@acomodi
Copy link
Contributor Author

acomodi commented Jan 10, 2022

@mithro At the moment, we need to post-process the XDC generated by LiteX to avoid having unrecognized commands which are not yet implemented in the yosys plugin. Examples of these commands are the set_false_path or set_clock_groups.

IMO we may proceed by merging this PR, so we eliminate the confusion around which constraint file is to be used.

@mithro
Copy link
Contributor

mithro commented Jan 10, 2022

Please make sure there are bugs logged for each XDC command which doesn't work. My understanding was that we had full support for XDC needed for LiteX.

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Labels
None yet
Projects
None yet
Development

Successfully merging this pull request may close these issues.

Why is a PCF file being provided for the xc7/linux_litex_demo?
2 participants