lcd.ucf

LCD1602的程序

#PACE: Start of Constraints generated by PACE

#PACE: Start of PACE I/O Pin Assignments
NET "clk" LOC = "C9" | IOSTANDARD = LVTTL;
NET "LCD_RS"  LOC = "L18" | IOSTANDARD = LVTTL | SLEW = SLOW | DRIVE = 2;
NET "LCD_RW"  LOC = "L17" | IOSTANDARD = LVTTL | SLEW = SLOW | DRIVE = 2;
NET "LCD_EN"  LOC = "M18" | IOSTANDARD = LVTTL | SLEW = SLOW | DRIVE = 2;
NET "data<0>" LOC = "R15" | IOSTANDARD = LVTTL | SLEW = SLOW | DRIVE = 2;
NET "data<1>" LOC = "R16" | IOSTANDARD = LVTTL | SLEW = SLOW | DRIVE = 2;
NET "data<2>" LOC = "P17" | IOSTANDARD = LVTTL | SLEW = SLOW | DRIVE = 2;
NET "data<3>" LOC = "M15" | IOSTANDARD = LVTTL | SLEW = SLOW | DRIVE = 2;
NET "FLASH_CE" LOC = "D16" | IOSTANDARD = LVTTL | SLEW = SLOW | DRIVE = 2;
NET "Reset" LOC = "L13" | IOSTANDARD = LVTTL | PULLUP ;

#PACE: Start of PACE Area Constraints

#PACE: Start of PACE Prohibit Constraints

#PACE: End of Constraints generated by PACE