Papilio

• Papilio Reference page
• Xilinx constraints.ucf file.
• Papilio Pinouts

Hello World VHDL (Blinking LED):

entity LEDtest is
  port (
    clk: in bit;
	 LED1: out bit;
	 LED2: out bit
  );
end LEDtest;

architecture BEHAVIOUR of LEDtest is
    signal count: integer range 0 to 16777215;
	 signal tmp:bit:='0';
	 --signal LED1: bit:='0';
	 --signal LED2: bit:='1';
begin
  IN_process: process (clk)
    begin
      if clk'event and clk = '1' then
		  count<=count+1;
		  if count=16777215 then
		    count<=0;
			 tmp<=not tmp;
		    LED1<=tmp;
			 LED2<=not tmp;
		  end if;  
		end if;
    end process;
end BEHAVIOUR;

With the following constraints file:

# Crystal Clock - use 32MHz onboard oscillator
NET "clk" LOC = "P89" | IOSTANDARD = LVCMOS25 | PERIOD = 31.25ns ;

# Wing1 Column A
NET "LED1" LOC = "P91";	
NET "LED2" LOC = "P92";

Use xs3prog to send to FPGA:

sudo ./xc3sprog -c papilio ~/VHDL/LEDTest/LEDtest.bit  -v
sudo ./xc3sprog -c papilio -I../bscan_spi/bscan_spi_xc3s500e_papilio.bit ~/VHDL/LEDTest/LEDtest.bit  -v -R

To compile xs3prog:

sudo aptitude install libftdi-dev libusb-1.0-0-dev
git clone git://github.com/GadgetFactory/Papilio-Loader.git
cd Papilio-Loader/xc3sprog/trunk
mkdir build
cd build
cmake ..
make
sudo ./xc3sprog -c papilio ~/VHDL/AWGprovo/mem2.bit -v

dmesg on inserting:

[48531.284590] usb 1-1.4: new full-speed USB device number 4 using ehci-pci
[48531.379349] usb 1-1.4: New USB device found, idVendor=0403, idProduct=6010
[48531.379359] usb 1-1.4: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[48531.379365] usb 1-1.4: Product: Dual RS232
[48531.379369] usb 1-1.4: Manufacturer: FTDI
[48531.450715] usbcore: registered new interface driver usbserial
[48531.450731] usbcore: registered new interface driver usbserial_generic
[48531.450741] usbserial: USB Serial support registered for generic
[48531.475289] usbcore: registered new interface driver ftdi_sio
[48531.475397] usbserial: USB Serial support registered for FTDI USB Serial Device
[48531.475516] ftdi_sio 1-1.4:1.0: FTDI USB Serial Device converter detected
[48531.475578] usb 1-1.4: Detected FT2232C
[48531.475581] usb 1-1.4: Number of endpoints 2
[48531.475583] usb 1-1.4: Endpoint 1 MaxPacketSize 64
[48531.475585] usb 1-1.4: Endpoint 2 MaxPacketSize 64
[48531.475587] usb 1-1.4: Setting MaxPacketSize 64
[48531.477586] usb 1-1.4: FTDI USB Serial Device converter now attached to ttyUSB0
[48531.477611] ftdi_sio 1-1.4:1.1: FTDI USB Serial Device converter detected
[48531.477670] usb 1-1.4: Detected FT2232C
[48531.477672] usb 1-1.4: Number of endpoints 2
[48531.477675] usb 1-1.4: Endpoint 1 MaxPacketSize 64
[48531.477677] usb 1-1.4: Endpoint 2 MaxPacketSize 64
[48531.477679] usb 1-1.4: Setting MaxPacketSize 64
[48531.478467] usb 1-1.4: FTDI USB Serial Device converter now attached to ttyUSB1