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Altera_Forum
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15 years ago

Realization MFM de/en-Coder via MAXII

Hello @ All, I'm new here and I hope that someone can help me concerning matter above. Background: I work almost honorary in my spare time for the computer museum in Munich and my goal is to...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

Hello again with one open key-issue:

For the MFM Decoder/Encoder, I need a 8.2MHz clock. The half frequency 4.1MHz is available via I/O connecter distributed from the controller. Basically, I have to double phase-synchronize the 4.1MHz clock. The answer is a PLL, but the altpll megafunction is not supported by the selected device family MAXII. Realy bad for me. Is there a alternative suggestion available ?