net CLK period = 50 MHz ;

# digit_out<0> is anode for the righmost, digit_out<3> for the leftmost
# segment:
# NET "digit_out<0>" 	LOC = "D14";
# NET "digit_out<1>" 	LOC = "G14";
# NET "digit_out<2>" 	LOC = "F14";
# NET "digit_out<3>" 	LOC = "E13";

# segment encoding
#      0
#     ---  
#  5 |   | 1
#     ---   <- 6
#  4 |   | 2
#     --- . <- 7
#      3

# NET "seg_out<0>" 	LOC = "E14";
# NET "seg_out<1>" 	LOC = "G13";
# NET "seg_out<2>" 	LOC = "N15";
# NET "seg_out<3>" 	LOC = "P15";
# NET "seg_out<4>" 	LOC = "R16";
# NET "seg_out<5>" 	LOC = "F13";
# NET "seg_out<6>" 	LOC = "N16";
# NET "seg_out<7>" 	LOC = "P16";

# SW_IN<0> is the righmost, SW_IN<7> the leftmost slide switch:
# EXTB1_5  =  T3, EXTB1_6  = E10
# EXTB1_7  = N11, EXTB1_8  = C11
# EXTB1_9  = P10, EXTB1_10 = D11
# EXTB1_11 = R10, EXTB1_12 = C12
# EXTB1_13 =  T7, EXTB1_14 = D12
# EXTB1_15 =  R7, EXTB1_16 = E11
# EXTB1_17 =  N6, EXTB1_18 = B16
# EXTB1_19 =  M6, EXTB1_20 = R3
# EXTB1_21 = C15, EXTB1_22 = C16
# EXTB1_23 = D15, EXTB1_24 = D16
# EXTB1_25 = E15, EXTB1_26 = E16
# EXTB1_27 = F15, EXTB1_28 = G15
# EXTB1_29 = G16, EXTB1_30 = H15
# EXTB1_31 = H16, EXTB1_32 = J16
# EXTB1_33 = K16, EXTB1_34 = K15
# EXTB1_35 = L15, EXTB1_36 = B3
# EXTB1_37 = R14, EXTB1_38 = N9
# EXTB1_39 = T15, EXTB1_40 = M11

# For some reason we cannot use R14 & T15:
# NET "EXT2OUT<6>"  LOC = "R14" | IOSTANDARD = LVCMOS33 ; 
# NET "EXT2OUT<7>"  LOC = "T15" | IOSTANDARD = LVCMOS33 ; 

# PB_IN<0> is the righmost, PB_IN<3> the leftmost.
# LED_OUT<0> is the righmost.
#PACE: Start of Constraints generated by PACE

#PACE: Start of PACE I/O Pin Assignments
NET "CLK"  LOC = "T9"  ; 
NET "EXT1IN<0>"  LOC = "E10" | IOSTANDARD = LVCMOS25 ; 
NET "EXT1IN<1>"  LOC = "C11" | IOSTANDARD = LVCMOS25 ; 
NET "EXT1IN<2>"  LOC = "D11" | IOSTANDARD = LVCMOS25 ; 
NET "EXT1IN<3>"  LOC = "C12" | IOSTANDARD = LVCMOS25 ; 
NET "EXT1IN<4>"  LOC = "D12" | IOSTANDARD = LVCMOS25 ; 
NET "EXT1IN<5>"  LOC = "E11" | IOSTANDARD = LVCMOS25 ; 
NET "EXT1IN<6>"  LOC = "B16" | IOSTANDARD = LVCMOS25 ; 
NET "EXT1IN<7>"  LOC = "R3" | IOSTANDARD = LVCMOS25 ; 
NET "EXT1OUT<0>"  LOC = "T3" | IOSTANDARD = LVCMOS25 ; 
NET "EXT1OUT<1>"  LOC = "N11" | IOSTANDARD = LVCMOS25 ; 
NET "EXT1OUT<2>"  LOC = "P10" | IOSTANDARD = LVCMOS25 ; 
NET "EXT1OUT<3>"  LOC = "R10" | IOSTANDARD = LVCMOS25 ; 
NET "EXT1OUT<4>"  LOC = "T7" | IOSTANDARD = LVCMOS25 ; 
NET "EXT1OUT<5>"  LOC = "R7" | IOSTANDARD = LVCMOS25 ; 
NET "EXT1OUT<6>"  LOC = "N6" | IOSTANDARD = LVCMOS25 ; 
NET "EXT1OUT<7>"  LOC = "M6" | IOSTANDARD = LVCMOS25 ; 
NET "EXT2OUT<0>"  LOC = "E15" | IOSTANDARD = LVCMOS25 ; 
NET "EXT2OUT<1>"  LOC = "F15" | IOSTANDARD = LVCMOS25 ; 
NET "EXT2OUT<2>"  LOC = "G16" | IOSTANDARD = LVCMOS25 ; 
NET "EXT2OUT<3>"  LOC = "H16" | IOSTANDARD = LVCMOS25 ; 
NET "EXT2OUT<4>"  LOC = "K16" | IOSTANDARD = LVCMOS25 ; 
NET "EXT2OUT<5>"  LOC = "L15" | IOSTANDARD = LVCMOS25 ; 
NET "EXT2OUT<6>"  LOC = "C15" | IOSTANDARD = LVCMOS25 ; 
NET "EXT2OUT<7>"  LOC = "D15" | IOSTANDARD = LVCMOS25 ; 
NET "LED_OUT<0>"  LOC = "K12"  ; 
NET "LED_OUT<1>"  LOC = "P14"  ; 
NET "LED_OUT<2>"  LOC = "L12"  ; 
NET "LED_OUT<3>"  LOC = "N14"  ; 
NET "LED_OUT<4>"  LOC = "P13"  ; 
NET "LED_OUT<5>"  LOC = "N12"  ; 
NET "LED_OUT<6>"  LOC = "P12"  ; 
NET "LED_OUT<7>"  LOC = "P11"  ; 
NET "PB_IN<0>"  LOC = "M13"  ; 
NET "PB_IN<1>"  LOC = "M14"  ; 
NET "PB_IN<2>"  LOC = "L13"  ; 
NET "PB_IN<3>"  LOC = "L14"  ; 
NET "SW_IN<0>"  LOC = "F12"  ; 
NET "SW_IN<1>"  LOC = "G12"  ; 
NET "SW_IN<2>"  LOC = "H14"  ; 
NET "SW_IN<3>"  LOC = "H13"  ; 
NET "SW_IN<4>"  LOC = "J14"  ; 
NET "SW_IN<5>"  LOC = "J13"  ; 
NET "SW_IN<6>"  LOC = "K14"  ; 
NET "SW_IN<7>"  LOC = "K13"  ; 

#PACE: Start of PACE Area Constraints

#PACE: Start of PACE Prohibit Constraints

#PACE: End of Constraints generated by PACE