NET "XSTALIN"         LOC="P20" ; #should be using bufg=clk
NET "HZIN"            LOC="P21" ;
NET LED(0)            LOC="P41" ;
NET LED(1)            LOC="P42" ;
NET LED(2)            LOC="P43" ;
NET LED(3)            LOC="P44" ;
NET LED(4)            LOC="P1"  ;
NET LED(5)            LOC="P2"  ;
NET LED(6)            LOC="P3" ;
NET LED(7)            LOC="P5" ;
NET "TX"              LOC="P6" ;
#NET SWITCH            LOC="P18";

#for dangerous prototypes board, 
# led is 38 / 39
# button is 18