Electronic – Set toggle rate in Quartus II

fpgaintel-fpgaquartus-ii

According to this document, I need to:

 assign 0 MHz toggle rate to Toggle Rate assignments for the pin in the Assignment Editor

to place a non-differential pin close to a differential one. However, when in the Assignment Editor, I cannot find "Toggle Rate" as an appropriate Assignment Name. (There is a long list of possible assignments, but none is called "Toggle Rate".)

How can I assign the toggle rate in Quartus II?

Best Answer

In the main menu (File|Edit|etc.) choose Assignments->Assignment Editor (or simply Ctrl+Shift+A).

A window/tab with the assignments will open. In there you can add the assignment that you want, which in this case is I/O Maximum Toggle Rate for the related pin.

The drop-down list under Assignment Name is long and alphabetically ordered, and since the option you are looking for starts with I instead of the more logical T, it is easy to miss.

enter image description here

Related Solutions

Electronic – Specify include path in Quartus II

Altera recommends that you use the SEARCH_PATH assignment to define the project libraries. You can have multiple SEARCH_PATH assignments. However, you can specify only one source directory for each SEARCH_PATH assignment.

For example:

set_global_assignment -name SEARCH_PATH "../other_dir/library1"
set_global_assignment -name SEARCH_PATH "../other_dir/library2"
set_global_assignment -name SEARCH_PATH "../other_dir/library3"

Please refer to Managing Quartus II Projects document for more details.

Electronic – Quartus II: Customise compiler messages

I asked the same question to Xilinx. They suggested writing a script to search through the INFO messages for what I was looking for. For example

grep "INFO: inferred latches" fpga.syr

Best Answer

Related Solutions

Electronic – Specify include path in Quartus II

Electronic – Quartus II: Customise compiler messages

Related Topic