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### SPARTAN-3E STARTER KIT BOARD CONSTRAINTS FILE
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## Mapeo de puertos de salida para el proyecto de la P2.
## ==== Pushbuttons (BTN) ====
# Boton derecha
#NET "reset" LOC = "K17" | IOSTANDARD = LVTTL | PULLDOWN ;
## ==== Clock inputs (CLK) ====
NET "clk" LOC = "C9" | IOSTANDARD = LVCMOS33 ;
# Define clock period for 50 MHz oscillator (40%/60% duty-cycle)
NET "clk" PERIOD = 20.0ns HIGH 40%;
## ==== Discrete LEDs (LED) ====
NET "LED" LOC = "F12" | IOSTANDARD = LVTTL | SLEW = SLOW | DRIVE = 8 ;
## ==== RS-232 Serial Ports (RS232) ====
NET "rx" LOC = "R7" | IOSTANDARD = LVTTL ;
NET "tx" LOC = "M14" | IOSTANDARD = LVTTL | DRIVE = 8 | SLEW = SLOW ;
## === Switchs ===
# Switch 1. (no iba el boton para el reset)
NET "reset" LOC = "L13" | IOSTANDARD = LVTTL | PULLUP ;
# ==== VGA Port (VGA) ====
NET "B" LOC = "G15" | IOSTANDARD = LVTTL | DRIVE = 8 | SLEW = FAST ;
NET "G" LOC = "H15" | IOSTANDARD = LVTTL | DRIVE = 8 | SLEW = FAST ;
NET "H" LOC = "F15" | IOSTANDARD = LVTTL | DRIVE = 8 | SLEW = FAST ;
NET "R" LOC = "H14" | IOSTANDARD = LVTTL | DRIVE = 8 | SLEW = FAST ;
NET "V" LOC = "F14" | IOSTANDARD = LVTTL | DRIVE = 8 | SLEW = FAST ;