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Altera_Forum's avatar
Altera_Forum
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15 years ago

Output ports in Block declared illegal

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

2 Replies

  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    15 years ago

    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