clock.ucf

在xilinx的ise环境下用vhdl编写的一个时钟程序。

NET clk LOC=P77;
NET keyen LOC=P62;
NET keyclr LOC=P63;

NET lddat<0> LOC=P34;
NET lddat<1> LOC=P31;
NET lddat<2> LOC=P41;
NET lddat<3> LOC=P36;
NET lddat<4> LOC=P35;
NET lddat<5> LOC=P33;
NET lddat<6> LOC=P42;
NET lddat<7> LOC=P37;

NET ldsel<0> LOC=P27;
NET ldsel<1> LOC=P29;
NET ldsel<2> LOC=P30;
NET ldsel<3> LOC=P24;