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来自FPGA开发板的PS2开发源代码

#PACE: Start of Constraints generated by PACE

#PACE: Start of PACE I/O Pin Assignments
NET "clk"  LOC = "P76"  ;
NET "data<0>"  LOC = "P22"  ;
NET "data<1>"  LOC = "P24"  ;
NET "data<2>"  LOC = "P26"  ;
NET "data<3>"  LOC = "P27"  ;
NET "data<4>"  LOC = "P28"  ;
NET "data<5>"  LOC = "P29"  ;
NET "data<6>"  LOC = "P31"  ;
NET "data<7>"  LOC = "P33"  ;
NET "lcd_e"  LOC = "P87"  ;
NET "lcd_rs"  LOC = "P93"  ;
NET "lcd_rw"  LOC = "P90"  ;
NET "led<0>"  LOC = "P194"  ;
NET "led<1>"  LOC = "P196"  ;
NET "led<2>"  LOC = "P197"  ;
NET "led<3>"  LOC = "P198"  ;
NET "led<4>"  LOC = "P199"  ;
NET "led<5>"  LOC = "P200"  ;
NET "led<6>"  LOC = "P203"  ;
NET "led<7>"  LOC = "P204"  ;
NET "ps2ck"  LOC = "P11"  ;
NET "ps2dk"  LOC = "P10"  ;
NET "rst"  LOC = "P152"  ;

#PACE: Start of PACE Area Constraints

#PACE: Start of PACE Prohibit Constraints

#PACE: End of Constraints generated by PACE