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Altera_Forum
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14 years ago

Negative spykes on all internal signals in EP4CE15E22C7N

Hello. I use the EP4CE15E22C7N device. (E144 package). The only clock connected is 50MHz, 3.3V to one of the clk inputs. The VCCIO connected to clean 3.3VDC, the VCCINT and VCCPLL to clean 1.2...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
14 years ago

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No, i didn't see anything like that. More than that - i created very tinny design for test and neutralized all the other possible sources of GND bouncing but the number of spikes remained the unchanged....

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Hi,

what kind of board are you using ? Do you have a second board available ?

Kind regards

GPK