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Altera_Forum
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14 years ago

Can't config the cyclone ii EP2C20Q240

Hi guys, I'm a student learning FPGA,I bought a cyclone ii EP2C20Q240 and want to download a program .But it doesn't work. THE 50MHZ crastal to the chip is ok, and the chip's vcc and gnd is al...
Altera_Forum's avatar
Altera_Forum
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14 years ago

I think the device is ok ; the name is ep2c20q240. We find a new problem: the source may be not steady; and the 50mhz crystal's output is 2.2v-1.0v. Can the 50mhz crystal make the fpga device work normally?