Altera pin assignment

Status
Not open for further replies.

shaiko

Advanced Member level 5
Joined
Aug 20, 2011
Messages
2,644
Helped
303
Reputation
608
Reaction score
297
Trophy points
1,363
Activity points
18,302
Hello,

Altera's Quartus has 3 ways to assign pins to the FPGA device:

1. Assignment Editor.
2. Pin Planner.
3. Direct text input into *.QSF.

My question:

Are these tools synchronized with each other?

For example: if I do initial assignments using the Pin Planner and then make changes in the *.QSF file - will the changes in the QSF propagate back to the Pin Planner settings?
 

As long as you save the changes to the QSF, I 'm pretty sure they get loaded for each tool (you may have to close and reopen the tool to get the latest changes), but I might be mis-remembering as it's been 5-6 years since I've used Quartus.
 
Reactions: shaiko

    shaiko

    Points: 2
    Helpful Answer Positive Rating
Any changes you make via assignment editor and pin planner are written to the QSF file (stands for quartus settings file I think). Quartus uses the QSF file to set up the assignment editor and pin planner (and all the other stuff in its gui). Ensure you havent got the project open when you hand edit the .qsf though

You can also assign pins via attributes in the HDL.
 
Reactions: shaiko

    shaiko

    Points: 2
    Helpful Answer Positive Rating
Ensure you havent got the project open when you hand edit the .qsf though

Yes, this, be very careful about this, I remember losing hand edited changes because of this.
 
Reactions: shaiko

    shaiko

    Points: 2
    Helpful Answer Positive Rating
Status
Not open for further replies.
Cookies are required to use this site. You must accept them to continue using the site. Learn more…