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Altera_Forum's avatar
Altera_Forum
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14 years ago

Unused CPLD Pins

I have two CPLDs on my PCB that connect to a common SPI bus. In order to keep things simple I'm trying to talk to only one of the chips at first but I'm having some trouble with the voltages which le...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
14 years ago

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I don't know why it was set to the older default then. I'm 100% sure I did not change this setting and always remember seeing the warning in the compilation log.

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Stupidity is hard to eradicate from software :)

What version of Quartus are you using? It must be fairly new to support this device. Create a new project, select that device, and then look at the setting. It sounds like the default will be the stupid value. Repeat for a Cyclone IV device and you'll see that the default is the sane value.

Cheers,

Dave