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Altera_Forum's avatar
Altera_Forum
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16 years ago

SRAM 160MHz, impedance matching

Hello, In my board I have one SRAM directly connected to a FPGA Cyclone 2. I am working at 160MHz. But sometimes I have an strange behavior when reading the SRAM. I am sure is something ab...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
16 years ago

not pretty sure if this info helps

in cyclone2 device if you feel clock output is not stable, maybe you have to review the power supply of pll. i have a friend who struggle this for a long time just Vco for pll issue. this does not seem in cyclone 1 & 3.