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Altera_Forum's avatar
Altera_Forum
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10 years ago

PIN Mapping Issue

Hello Friends,

I am a starter in FPGAs and learning for starting a project of implementing a communication protocol in Cyclone V. I have the Deo-Nano-Soc development board from Terasic. Ok my question is , I tried to do a project from the tutorials of the board and I was able to successfully synthesize and elaborate the project. I have attached the snapshot of the project with this post. Its below.

http://www.alteraforum.com/forum/attachment.php?attachmentid=11008&stc=1

When I do Assignements -> Pin Planner , some of the Input and Output ports are not coming in the PIN mapper. 

CLOCK_50    Input    PIN_V11    3B    B3B_N0    2.5 V (default)        12mA (default)    
counter_out    Output                2.5 V (default)        12mA (default)    1 (default)
counter_out    Output                2.5 V (default)        12mA (default)    1 (default)
counter_out    Output                2.5 V (default)        12mA (default)    1 (default)
counter_out    Output                2.5 V (default)        12mA (default)    1 (default)
counter_out    Output                2.5 V (default)        12mA (default)    1 (default)
counter_out    Output                2.5 V (default)        12mA (default)    1 (default)
counter_out    Output                2.5 V (default)        12mA (default)    1 (default)
counter_out    Output                2.5 V (default)        12mA (default)    1 (default)
counter_out    Output                2.5 V (default)        12mA (default)    1 (default)
counter_out    Output                2.5 V (default)        12mA (default)    1 (default)
counter_out    Output                2.5 V (default)        12mA (default)    1 (default)
counter_out    Output                2.5 V (default)        12mA (default)    1 (default)
counter_out    Output                2.5 V (default)        12mA (default)    1 (default)
counter_out    Output                2.5 V (default)        12mA (default)    1 (default)
counter_out    Output                2.5 V (default)        12mA (default)    1 (default)
counter_out    Output                2.5 V (default)        12mA (default)    1 (default)
counter_out    Output                2.5 V (default)        12mA (default)    1 (default)
counter_out    Output                2.5 V (default)        12mA (default)    1 (default)
counter_out    Output                2.5 V (default)        12mA (default)    1 (default)
counter_out    Output                2.5 V (default)        12mA (default)    1 (default)
counter_out    Output                2.5 V (default)        12mA (default)    1 (default)
counter_out    Output                2.5 V (default)        12mA (default)    1 (default)
counter_out    Output                2.5 V (default)        12mA (default)    1 (default)
counter_out    Output                2.5 V (default)        12mA (default)    1 (default)
counter_out    Output                2.5 V (default)        12mA (default)    1 (default)
counter_out    Output                2.5 V (default)        12mA (default)    1 (default)
counter_out    Output                2.5 V (default)        12mA (default)    1 (default)
counter_out    Output                2.5 V (default)        12mA (default)    1 (default)
counter_out    Output                2.5 V (default)        12mA (default)    1 (default)
counter_out    Output                2.5 V (default)        12mA (default)    1 (default)
counter_out    Output                2.5 V (default)        12mA (default)    1 (default)
counter_out    Output                2.5 V (default)        12mA (default)    1 (default)
<<new node>>

It is coming as above, but the input pins KEY[0], kEY[1] and the output pins LED[3..0] is not coming in the above list. But CLOCK_50 and orthogonal buses are visible. I can share more details if required.

Does anyone faced this problem? .Any help would be greatly appreciated.

Thanks,

Kannoth

1 Reply

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

    One possibility is that Quartus decided to remove those pins because they didn't have any influence on the project. It can be because they aren't connected to anything in your project, or because of a design bug (for example because they are used in a process whose clock is never toggling).

    After the synthesize step is finished, search for those pin names in Quartus' warnings. If it decided to remove them, it should tell it there.