Digilent 410-258P-KIT - Manual (Page 3)

Anvyl Reference Manual
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files from VHDL, Verilog, or schematic-based source files (EDK is used for MicroBlaze™ embedded
processor based designs). Once a .bit file has been created, the Anvyl’s FPGA can be programmed
with it over the USB-JTAG circuitry (port J12) using either Digilent’s Adept software or Xilinx’s
iMPACT software. To generate a .mcs file from a .bit file, use the PROM File Generator tool within
Xilinx’s iMPACT software. The .mcs file can then be programmed to the SPI Flash using iMPACT.
The FPGA can also be programmed from a FAT formatted memory stick attached to the USB-HID
HOST port (J14) if the stick contains a single .bit configuration file in the root directory, JP2 is loaded,
and board power is cycled. The FPGA will automatically reject any .bit files that are not built for the
proper FPGA.
Power Supplies
The Anvyl board requires an external 5V, 4A or greater power source with a center positive, 2.1mm
internal diameter coax plug (a suitable supply is provided as part of the Anvyl kit). Voltage regulator
circuits from Analog Devices create the required 3.3V, 1.8V and 1.2V supplies from the main 5V
supply. A power-good LED (LD19), driven by the wired OR of all the power-good outputs on the
supplies, indicates that all supplies are operating normally. The following devices are present on each
rail:
• 5V : USB-HID connectors, TFT touchscreen controller, HDMI, and expansion connector
• 3.3V : SRAM, Ethernet PHY I/O, USB-HID controllers, FPGA I/O, oscillators, SPI Flash, Audio
codec, TFT display, OLED display, GPIO, Pmods, and expansion connector
•
1.8V : DDR2, USB-JTAG/USB-UART controller, FPGA I/O, and GPIO
•
1.2V : FPGA core and Ethernet PHY core
Adept System
Adept has a simplified configuration interface. To program the Anvyl board using Adept, first set up
the board and initialize the software:
•
plug in and attach the power supply
•
plug in the USB cable to the PC and to the USB PROG port on the board
•
start the Adept software
•
turn ON Anvyl’s power switch
•
wait for the FPGA to be recognized
Use the browse function to associate the desired .bit file with the FPGA, and click on the Program
button. The configuration file will be sent to the FPGA, and a dialog box will indicate whether
programming was successful. The configuration “done” LED will light up after the FPGA has been
successfully configured. Before starting the programming sequence, Adept ensures that any selected
configuration files contain the correct FPGA ID code – this prevents incorrect .bit files from being sent
to the FPGA. In addition to the navigation bar and browse and program buttons, the configuration
interface provides an Initialize Chain button, console window, and status bar. The Initialize Chain
button is useful if USB communications with the board have been interrupted. The console window
displays current status, and the status bar shows real-time progress when downloading a
configuration file.