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Altera_Forum
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18 years ago

will Cyclone III work with unconected VCCA PLL ??

I actually made e board already and didn't connected thous VCCA PLL pins and now my board don't work (I can't program it and software all time is saying "can't access JTAG chain" is that because...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
18 years ago

I just found out why PLL is working improperly and instead of 16Mhz give out 22Khz its because I also forgot to connect VCCD1;2 pins to 1,2V core voltage.

I will have to correct that mistake, and then PLL must work properly.