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Altera_Forum
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14 years ago

CycloneIII 3c120 does not load through USB

Hi I have just received a CycloneIII 3c120 Dev kit. When I try to load a configuration (*.sof) through USB Blaster, Quartus II gives the following messages: Info: Started Programmer operat...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
14 years ago

Hello

After experimenting and looking at the different documents, I changed the SW3.4 to 0 and then could program the device. In the "User Guide", the information tells SW3.4 on, in the "Reference Manual" it tells, that SW3.4 should be off. (Max-enable off).

So, it seems, that the problem is solved. But the documentation is not clear.

Am I wrong?