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Altera_Forum's avatar
Altera_Forum
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15 years ago

I can't program...

Hello, I come back with another error. Before today, I could program my EPM3064AL44-10N. But since today, I haven't programed it.... I didn't change the electronic hardware I made a ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

I wondered whether that really could be the problem ...

I have seen that on the latest boards (and perhaps earlier as well) Altera puts a termination circuit on the Tck signal (at the last pin in that net), although they mark it DNI (Do Not Insert). But I always put that termination. Perhaps the 1k pull down just helps enough.

Who supplies the 3.3V to the EPM, not the cable I presume?