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Altera_Forum's avatar
Altera_Forum
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16 years ago

Program device seems no response in signaltap after changing source code

Initially, I could program .sof file & run signaltap without any problem. I tried to alter the source codes like adding a new signal & output port. After that, I recompiled my design. Then, I opened ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
16 years ago

I believe the stp and design are different revision. When you start editing your design, you need to make sure in the original stp, the nodes displayed in the setup page is still valid. Because signal tap consumes LE resources, re-compiling a design may cause the stp fitting to be different from the original stp. When this happens, you'll see "Program Device to continue"

To confirm this, is the stp GUI showing any nodes in red color? If it is, remove the red colored nodes and add them back. Then re-compile your design.