Forum Discussion
Altera_Forum
Honored Contributor
10 years ago --- Quote Start --- uncertain TCK value --- Quote End --- I assume you mean the frequency of TCK changes. This is perfectly normal and depends on many factors. Can I assume you have a good 3.3V swing on the signals? Have you changed the computer you're using? Have you got a USB-Blaster to try? There shouldn't necessarily be anything wrong with ByteBlaster II, I'm just suggesting you try some other programming hardware, perhaps both computer & Blaster. I also suggest you upgrade to a newer version of Quartus. Cheers, Alex