Jak pouzit GCK1 pin u SPARTANA

[Jiri Beranek]

Pomuze mi prosim nekdo co mam napsat, aby mi pin GCK1 u SPATANA
chodil jako vstupni.

Pise mi to tohle:

***************************************************
ERROR:Pack:1107 - Unable to combine the following symbols into a single IOB
component:

PAD symbol "clk" (Pad Signal = clk)

BUF symbol "clk_IBUF" (Output Signal = clk_IBUF)

Each of the following constraints specifies an illegal physical site for a

component of type IOB:

Symbol "clk" (LOC=P91)

Please correct the constraints accordingly.

****************************************************************************
*******

v UCF  souboru mam tohle:

NET "clk" LOC = "P91"  ;
NET "led"   LOC = "P67"  ;



J. Beranek