constrains.ucf

来自「This is LCD controler write in vhdl. Us」· UCF 代码 · 共 16 行

#LCD alpha-numeric  -----------------------------------------

NET "clk" LOC = "p90"  ; # Slow: 1 .. 1000Hz

NET "D_LCD<0>"  LOC = "p89"  ; # led0 and LCD D0
NET "D_LCD<1>"  LOC = "p88"  ; 
NET "D_LCD<2>"  LOC = "p87"  ; 
NET "D_LCD<3>"  LOC = "p86"  ; 
NET "D_LCD<4>"  LOC = "p85"  ; 
NET "D_LCD<5>"  LOC = "p81"  ; 
NET "D_LCD<6>"  LOC = "p80"  ; 
NET "D_LCD<7>"  LOC = "p79"  ; 
NET "DC_LCD"    LOC = "p92"  ; # Data or not Control (RS)
NET "E_LCD"     LOC = "p2"   ; # enable