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.

Sign up for GitHub

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

Jump to bottom

nextpnr-ecp5 doesn't appear to allow more than 8 global clocks #1165

Open
madscientist159 opened this issue May 25, 2023 · 0 comments
Open

nextpnr-ecp5 doesn't appear to allow more than 8 global clocks #1165

madscientist159 opened this issue May 25, 2023 · 0 comments

Comments

@madscientist159
Copy link

When routing a design with a number of different clock domains, I have noticed that nextpnr-ecp5 only seems to use globals 0-7. The Lattice documentation for the ECP5 indicates there are 16 global clock nets.

Are globals 8-15 simply unimplemented in nextpnr-ecp5, or are they used for some other functionality and therefore masked off?
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Assignees
No one assigned
Labels
None yet
Projects
None yet
Milestone
No milestone
Development

No branches or pull requests
1 participant
@madscientist159