Differenze

Queste sono le differenze tra la revisione selezionata e la versione attuale della pagina.

--- vlsi:workbook:fpga:xilinx:spartan3an:ucf [19/11/2014 20:09]
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+++ vlsi:workbook:fpga:xilinx:spartan3an:ucf [19/11/2014 20:51] (versione attuale)
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@@ Linea 4: / Linea 4: @@
 [ __[[vlsi:workbook:fpga:spartan3an|Back]]__ ]
+== Contents ==
+   * [[vlsi:workbook:fpga:xilinx:spartan3an:ucf#introduction|Introduction]]
+   * [[vlsi:workbook:fpga:xilinx:spartan3an:ucf#reference_documentation|Reference documentation]]
+   * [[vlsi:workbook:fpga:xilinx:spartan3an:ucf#slide_switches|Slide switches]]
+   * [[vlsi:workbook:fpga:xilinx:spartan3an:ucf#push-button_switches|Push-button switches]]
+   * [[vlsi:workbook:fpga:xilinx:spartan3an:ucf#discrete_leds|Discrete LEDs]]
+   * [[vlsi:workbook:fpga:xilinx:spartan3an:ucf#clock_sources|Clock sources]]
+   * [[vlsi:workbook:fpga:xilinx:spartan3an:ucf#six-pin_accessory_headers|Six-pin accessory headers]]
+   * ... (VGA, LCD, audio jack etc.)
+====== Introduction ======
+Quick cut-and-paste code snippets.
@@ Linea 10: / Linea 25: @@
 //Spartan-3A/3AN FPGA Starter Kit Board User Guide// (''ug334.pdf'') \\
+[[http://www.xilinx.com/support/documentation/boards_and_kits/ug334.pdf]]
+//Constraints Guide// (''cgd.pdf'') \\
+[[http://www.xilinx.com/itp/xilinx10/books/docs/cgd/cgd.pdf]]
-//Constraints Guide//  \\
+====== Slide switches ======
+<code>
+NET "SW0"   LOC = "V8"  |  IOSTANDARD = LVCMOS33 ;
+NET "SW1"   LOC = "U10" |  IOSTANDARD = LVCMOS33 ;
+NET "SW2"   LOC = "U8"  |  IOSTANDARD = LVCMOS33 ;
+NET "SW3"   LOC = "T9"  |  IOSTANDARD = LVCMOS33 ;
+</code>
-====== Slide switches ======
+====== Push-button switches ======
+__**Push-button switches**__
+<code>
+NET "EAST"    LOC = "T16"  | IOSTANDARD = LVCMOS33  |  PULLDOWN ;
+NET "NORTH"   LOC = "T14"  | IOSTANDARD = LVCMOS33  |  PULLDOWN ;
+NET "SOUTH"   LOC = "T15"  | IOSTANDARD = LVCMOS33  |  PULLDOWN ;
+NET "WEST"    LOC = "U15"  | IOSTANDARD = LVCMOS33  |  PULLDOWN ;
+</code>
+\\
+__**Rotary push-button switch**__
+<code>
+NET "A"       LOC = "T13"  |  IOSTANDARD = LVCMOS33  | PULLUP   ;
+NET "B"       LOC = "R14"  |  IOSTANDARD = LVCMOS33  | PULLUP   ;
+NET "CENTER"  LOC = "R13"  |  IOSTANDARD = LVCMOS33  | PULLDOWN ;
+</code>
+====== Discrete LEDs ======
+<code>
+NET "LED0"   LOC = "R20"  |  IOSTANDARD = LVCMOS33  | SLEW = SLOW  | DRIVE = 8 ;
+NET "LED1"   LOC = "T19"  |  IOSTANDARD = LVCMOS33  | SLEW = SLOW  | DRIVE = 8 ;
+NET "LED2"   LOC = "U20"  |  IOSTANDARD = LVCMOS33  | SLEW = SLOW  | DRIVE = 8 ;
+NET "LED3"   LOC = "U19"  |  IOSTANDARD = LVCMOS33  | SLEW = SLOW  | DRIVE = 8 ;
+NET "LED4"   LOC = "V19"  |  IOSTANDARD = LVCMOS33  | SLEW = SLOW  | DRIVE = 8 ;
+NET "LED5"   LOC = "V20"  |  IOSTANDARD = LVCMOS33  | SLEW = SLOW  | DRIVE = 8 ;
+NET "LED6"   LOC = "Y22"  |  IOSTANDARD = LVCMOS33  | SLEW = SLOW  | DRIVE = 8 ;
+NET "LED7"   LOC = "W21"  |  IOSTANDARD = LVCMOS33  | SLEW = SLOW  | DRIVE = 8 ;
+</code>
+====== Clock sources ======
+__**On-board 50 MHz crystal oscillator**__
+<code>
+NET "CLK"   LOC = "E12"  |  IOSTANDARD = LVCMOS33 ;
+</code>
+\\
+__**Auxiliary clock oscillator socket (empty)**__
+<code>
+NET "CLK"   LOC = "V12"  |  IOSTANDARD = LVCMOS33 ;
+</code>
+\\
+__**SMA connector**__
+<code>
+NET "CLK"   LOC = "U12"  |  IOSTANDARD = LVCMOS33 ;
+</code>
+====== Six-pin accessory headers ======
+__**Thru-hole pads (J19 header test points)**__
+<code>
+NET "PAD1"   LOC = "Y18"  | IOSTANDARD = LVCMOS33  | SLEW = SLOW  | DRIVE = 8 ;
+NET "PAD2"   LOC = "W18"  | IOSTANDARD = LVCMOS33  | SLEW = SLOW  | DRIVE = 8 ;
+NET "PAD3"   LOC = "V17"  | IOSTANDARD = LVCMOS33  | SLEW = SLOW  | DRIVE = 8 ;
+NET "PAD4"   LOC = "W17"  | IOSTANDARD = LVCMOS33  | SLEW = SLOW  | DRIVE = 8 ;
+</code>
+====== ======
+\\
+----
+Last update: [[pacher@NOSPAMto.infn.it|Luca Pacher]] - Nov 19, 2014