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Altera_Forum
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15 years ago

Configuration via JTAG Works but Not via AS

I'm trying to get a DE2 board to load a very simple hardware only configuration from the EPCS flash and not having much success. If I configure the FPGA via the JTAG interface (Run/Prog switch ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

What Quartus Version are you using ?

There is an issue regarding EPCS file generation with Quartus 9.1 (no SP) and Quartus 9.1 SP2 where the image runs fine when loaded via JTAG but the design does not start out of epcs devices.

for both Quartus Versions is a patch available via MySupport.

The Patch for 9.1SP2 is Patch 2.46

Or you can use Quartus 9.1 SP1, you see the bug was fixed with SP1 and reintroduced with SP2