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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

Hey guys,

Even I faced the same problem, the bank 1 is set to 1.8 v for my memory signals, what I need to do now?

I tried changing configuration but it leads to another error as follows

Error: Can't place multiple pins assigned to pin location Pin_D2 (IOPAD_X0_Y22_N21)

Info: Pin mem_addr[12] is assigned to pin location Pin_D2 (IOPAD_X0_Y22_N21)

Info: Pin ~ALTERA_ASDO_DATA1~ is assigned to pin location Pin_D2 (IOPAD_X0_Y22_N21)

Actually this error can be avoided by setting all Dual purpose pins to "Use as regular I/Os" in device options when using Active Serial Configauration(AS) but for other configurations even I set them to use as regular I/Os Quartus is erroring out, Can you help me.