Output ports in Block declared illegal

Altera_Forum · ‎11-10-2010

I am just getting started with Quartus. I have run into a very strange issue. When I try to create a symbol file for a block diagram, I get the following Warnings:

Warning: Ignored port Do in symbol Spi_interface -- port is illegal
Warning: Ignored port Miso in symbol Spi_interface -- port is illegal
Warning: Ignored port A in symbol Spi_interface -- port is illegal
Warning: Ignored port Cmd in symbol Spi_interface -- port is illegal

Does anyone have a clue what might be going on here?

I am running Quartus II 9.1 SP2 on Kubuntu 10.04

Thank you very much,

Henry von Tresckow

Altera_Forum · ‎11-10-2010

Dunno, but those names could be reserved names on certain FPGAs. The EPCS device is a SPI flash and some devices allow you to reserve pins for this purpose.

To test this theory, have you tried naming these differently?

Cheers,

slacker

Altera_Forum · ‎11-10-2010

Something's wrong in the port definition or connection.