Forum Discussion

JBlac1's avatar
JBlac1
Icon for New Contributor rankNew Contributor
8 years ago

Pin Planner: This is a read-only item

I am a new to FPGA design, I am now playing a simple LED flow example. I am using Quartus 15.1 and Cyclone V. I firstly write a verilog code and then go to setup the pins. In the Pin Planner, for ...
sstrell's avatar
sstrell
Icon for Super Contributor rankSuper Contributor
8 years ago

You don't set I/O direction in the Pin Planner. The direction is based off your design. If you're trying to create I/O pins before you've actually created your design, you're limited in what you can do in the Pin Planner. Create your design, then run Analysis & Elaboration. You'll then be able to make I/O-related assignments for the top-level I/O in your design.