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Altera_Forum
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8 years ago

Cyclone V won't configure via active serial

I have a Cyclone V design (5CSEBA5) that I am trying to configure using a EPCQ128 device I have created a .sof file that I can load into the FPGA directly (Jtag USB Blaster) and it works fine (...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
8 years ago

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I'm having the same problem, did you resolve this?

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Yes.

It turned out to be a circuit problem: I didn't have a pull-up on the config_done signal. Once I added the pull up everything worked properly.