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Dolemy's avatar
Dolemy
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3 years ago

Compile Error / EPCS multiple pin problem in DE2-35

Hello, I am having trouble using EPCS16. Generating on NIOS II works well but I get this error when I try to do a full compile in Quartus "Error (176310): Can't place multiple pins as...
FvM's avatar
FvM
Icon for Super Contributor rankSuper Contributor
3 years ago

Hello,
looks like you have a second module besides nios2e that's connecting to AS memory. ASDO is the top level pin you have defined ~ASDO~ is something different. Specifying dual purpose pins as regular IO is basically correct when using user declared AS pins.

You can e.g. disconnect the nios AS pins by outcommenting the top level pins and check the compilation report to see what's connecting else. Can it be that nios is configured for internal AS memory connection and you are using the external pins erroneously?

Regards

Frank

Dolemy's avatar
Dolemy
Icon for New Contributor rankNew Contributor
3 years ago

This image is the schematic for the EPCS on the DE2-35 board.