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Altera_Forum
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16 years ago

Problem with PLL in EP1C12 device

Hello everyone, long time no see =] Recently I've built my own evaluation board with EP1C12 Cyclone device (yes, it's an old one, but I obtained it for free). The board is working, I can config...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
16 years ago

In my opinion, possible causes are:

- Wrong clock frequency

- Incorrect PLL configuration

- Missing or unstable or out-of-range PLL power supply