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Altera_Forum
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15 years ago

I/O standard of cyclone III device EP3C55 bank 1

Hi, I am using cyclone iii device EP3C55, and assigned pins(DDR2-SDRAM) in bank 1 to sstl-18 class i I/O standard, but Quartus II shows the error messages like this: error: I/O bank 1 cannot sel...
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Altera_Forum
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15 years ago

As I konw, you can avoid the error by the way you mentioned even you're not using AS.

Make sure that you have set all Dual purpose pins to "Use as regular I/Os".