Added constraints

stitch_project/stitch/stitch.ucf

+CONFIG VCCAUX = "3.3" ;
+
+NET "CLK100" LOC = V10 | TNM_NET = "CLK100" | IOSTANDARD = LVCMOS33 ;
+TIMESPEC TS_CLK = PERIOD "CLK100" 100 MHz HIGH 50% ;
+
+
+#serial channels
+NET "RX_IN"		LOC = "L17"	  | IOSTANDARD = LVTTL | SLEW = FAST | DRIVE = 8 ;
+#NET "TXN"		LOC = "L18"	  | IOSTANDARD = LVTTL | SLEW = FAST | DRIVE = 8 ;
+#NET "OPT_OUT[0]"	LOC = "J13"   | IOSTANDARD = LVTTL | SLEW = FAST | DRIVE = 8 ;
+#NET "OPT_OUT[1]"	LOC = "H16"   | IOSTANDARD = LVTTL | SLEW = FAST | DRIVE = 8 ;
+#NET "OPT_OUT[2]"	LOC = "H14"   | IOSTANDARD = LVTTL | SLEW = FAST | DRIVE = 8 ;
+#NET "OPT_OUT[3]"	LOC = "H13"   | IOSTANDARD = LVTTL | SLEW = FAST | DRIVE = 8 ;
+#NET "OPT_OUT[4]"	LOC = "G18"   | IOSTANDARD = LVTTL | SLEW = FAST | DRIVE = 8 ;
+#NET "OPT_OUT[5]"	LOC = "G16"   | IOSTANDARD = LVTTL | SLEW = FAST | DRIVE = 8 ;
+#NET "OPT_OUT[6]"	LOC = "F16"   | IOSTANDARD = LVTTL | SLEW = FAST | DRIVE = 8 ;
+#NET "OPT_OUT[7]"	LOC = "F15"   | IOSTANDARD = LVTTL | SLEW = FAST | DRIVE = 8 ;
+#NET "OPT_OUT[8]"	LOC = "F18"   | IOSTANDARD = LVTTL | SLEW = FAST | DRIVE = 8 ;
+#NET "OPT_OUT[9]"	LOC = "F17"   | IOSTANDARD = LVTTL | SLEW = FAST | DRIVE = 8 ;
+
+NET "LEDS[0]"	LOC = "T17"   | IOSTANDARD = LVTTL | SLEW = FAST | DRIVE = 8 ;
+NET "LEDS[2]"	LOC = "T12"   | IOSTANDARD = LVTTL | SLEW = FAST | DRIVE = 8 ;
+NET "LEDS[1]"	LOC = "T14"   | IOSTANDARD = LVTTL | SLEW = FAST | DRIVE = 8 ;
+
+NET "BEEPER_OUT" LOC = "R11"  | IOSTANDARD = LVTTL | SLEW = SLOW | DRIVE = 12 ; 
+#NET "STX"	LOC = "U16"   | IOSTANDARD = LVTTL | SLEW = FAST | DRIVE = 8 ; 
+NET "STX"	LOC = "L18"   | IOSTANDARD = LVTTL | SLEW = FAST | DRIVE = 8 ; 
+#NET "CTS" LOC = "M16" | IOSTANDARD = LVTTL | SLEW = FAST | DRIVE = 8 ;
+
+NET "LASER_CLK_1_P" LOC = "N5" | IOSTANDARD = LVDS_33;
+NET "LASER_CLK_1_N" LOC = "P6" | IOSTANDARD = LVDS_33;
+
+NET "LASER_SIGNAL_1_P" LOC = "C5" | IOSTANDARD = LVDS_33;
+NET "LASER_SIGNAL_1_N" LOC = "A5" | IOSTANDARD = LVDS_33;
+
+NET "LASER_SIGNAL_2_P" LOC = "T4" | IOSTANDARD = LVDS_33;
+NET "LASER_SIGNAL_2_N" LOC = "V4" | IOSTANDARD = LVDS_33;
+
+NET "LASER_SIGNAL_3_P" LOC = "R5" | IOSTANDARD = LVDS_33;
+NET "LASER_SIGNAL_3_N" LOC = "T5" | IOSTANDARD = LVDS_33;
+
+NET "LASER_CLK_2_P" LOC = "B2" | IOSTANDARD = LVDS_33;
+NET "LASER_CLK_2_N" LOC = "A2" | IOSTANDARD = LVDS_33;
+
+NET "LASER_CLK_3_P" LOC = "R3" | IOSTANDARD = LVDS_33;
+NET "LASER_CLK_3_N" LOC = "T3" | IOSTANDARD = LVDS_33;