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Altera_Forum
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16 years ago

Pin Assignment failed to be downloaded to the FPGA board

Hi, All, I am using the Cyclone II DE board and had a strange problem. Once I changed the pin assignment, e.g., I changed the reset signal from push button KEY0 to KEY1; then I re-compiled...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
16 years ago

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Hello, GPK,

Thanks for replying!

Now the problem seems have gone. The solution is that I re-added nodes inside the SignalTap each time I changed the pin assignment in Pin Planner, and then re-compile.

I am using Quartus II 9.0 SP2.

Thanks once again.

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Hi,

I observed a similar problem with Quartus II 9.1. When you use post-fitting nodes in Signaltap the Partition Top ( that is a defalut partition in every project) preserve Level is set to "Placement & Routing" and a new pin assignment will be ignored. Look into your messages, I sure sure you will find an info about this issue.

Kind regards

GPK