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Altera_Forum's avatar
Altera_Forum
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15 years ago

Input pins are driven down

Hello, I wish everyone have happy new year. In my case, it's not. I have connected input pins of CPLD(MAX II, EPM570C5N) and CMOS image sensor output pins. But, there are a problem with the...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

OK,

I will double and triple check for it immediately,

but I had set unused pins as input tri-stated with weak pull-up pin,

but the problem occurred.

I have no idea why the pin is driven down.

If my config is wrong, the pin should be weak pulled-up.

Thanks a lot!