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Altera_Forum
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19 years ago

ESD test on cyclone 2

Hi. We have board designed around Cyclone 2 in 240 pin package(QFP). On this board beside fpga is located memory(DDR RAM) and lvds converters. In the order to done esd test I implemented si...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
19 years ago

Thanx for answer,

I added few capacitors to filter 3.3V and 1.2V voltages.

It results in better operation.

Now, I have to include external memory and m-lvds converters. These could make additional problems during esd test, because of ground debounce...Wrong access to external memory can cause error in nios 2 processor.

ESD diodes are added on the rs232 interface.

Pita