410-155P-KIT

410-155P-KIT Datasheet

Part	Datasheet
410-155P-KIT	410-155P-KIT (pdf)

Related Parts	Information
410-155-25	410-155-25

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Basys 2 FPGA Board Reference Manual 1300 Henley Court Pullman, WA 99163 Overview The Basys 2 board is a circuit design and implementation platform that anyone can use to gain experience building real digital circuits. Built around a Xilinx Spartan-3E Field Programmable Gate Array and a Atmel AT90USB2 USB controller, the Basys 2 board provides complete, ready-to-use hardware suitable for hosting circuits ranging from basic logic devices to complex controllers. A large collection of on-board I/O devices and all required FPGA support circuits are included, so countless designs can be created without the need for any other components. Full Speed USB2 Port JTAG and data transfers Data port Platform Flash config ROM JTAG port Settable Clock Source 25 / 50 / 100 MHz Xilinx Spartan3E-100 CP132 PS/2 I/O Devices Port 8 bit color 4444 JA JB JC JD VGA Port Pmod Connectors • 100,000-gate Xilinx Spartan 3E FPGA • Atmel AT90USB2 Full-speed USB2 port providing board power and programming/data transfer interface • Xilinx Platform Flash ROM to store FPGA configurations • 8 LEDs, 4-digit 7-segment display, 4 buttons, 8 slide switches • PS/2 port and 8-bit VGA port • User-settable clock 25/50/100MHz , plus socket for 2nd clock • Four 6-pin header expansion connectors • ESD and short-circuit protection on all I/O signals. Figure The Basys 2 board block diagram and features. Four standard expansion ports allow designs to grow beyond the Basys 2 board using breadboards, user-designed circuit boards, or Pmods are inexpensive analog and digital I/O modules that offer A/D & D/A conversion, motor drivers, sensor inputs, and many other features . Signals on the 6-pin connectors are protected against ESD damage and short-circuits, ensuring a long operating life in any environment. The Basys 2 board works seamlessly with all versions of the Xilinx ISE tools, including the free WebPack. It ships with a USB cable that provides power and a programming interface, so no other power supplies or programming cables are required. The Basys 2 board can draw power and be programmed via its on-board USB2 port. Digilent’s freely available PCbased Adept software automatically detects the Basys 2 board, provides a programming interface for the FPGA and Platform Flash ROM, and allows user data transfers see for more information . DOC# 502-155 Copyright Digilent, Inc. All rights reserved. Other product and company names mentioned may be trademarks of their respective owners. Page 1 of 12 Basys2 FPGA Board Reference Manual The Basys 2 board is designed to work with the free ISE WebPack CAD software from Xilinx. WebPack can be used to define circuits using schematics or HDLs, to simulate and synthesize circuits, and to create programming files. WebPack can be downloaded free of charge from The Basys 2 board ships with a built-in self-test/demo stored in its ROM that can be used to test all board features. To run the test, set the Mode Jumper see below to ROM and apply board power. If the test is erased from the ROM, it can be downloaded and reinstalled at any time. See Basys 2 for the test project as well as further documentation, reference designs, and tutorials. 1 Board Power The Basys 2 board is typically powered from a USB cable, but a battery connector is also provided so that external supplies can be used. To use USB power, simply attach the USB cable. To power the Basys 2 using a battery or other external source, attach a 3.5V-5.5V battery pack or other power source to the 2-pin, 100-mil spaced battery connector three AA cells in series make a good volt supply . Voltages higher than 5.5V on either power connector may cause permanent damage. Input power is routed through the power switch SW8 to the four 6-pin expansion connectors and to a Linear Technology LTC3545 voltage regulator. The LTC3545 produces the main 3.3V supply for the board, and it also produces 2.5V and 1.2V supply voltages required by the FPGA. Total board current is dependent on FPGA configuration, clock frequency, and Figure Basys 2 power circuits. external connections. In test circuits with roughly 20K gates routed, a 50MHz clock source, and all LEDs illuminated, about 100mA of current is drawn from the 1.2V supply, 50mA from the 2.5V supply, and 50mA from the 3.3V supply. Required current will increase if larger circuits are configured in the FPGA, or if peripheral boards are attached. The Basys 2 board uses a four layer PCB, with the inner layers dedicated to VCC and GND planes. The FPGA and the other ICs on the board have large complements of ceramic bypass capacitors placed as close as possible to each VCC pin, resulting in a very clean, low-noise power supply. 2 Configuration After power-on, the FPGA on the Basys 2 board must be configured before it can perform any useful functions. During configuration, a “bit” file is transferred into memory cells within the FPGA to define the logical functions and circuit interconnects. The free ISE/WebPack CAD software from Xilinx can be used to create bit files from VHDL, Verilog, or schematic-based source files.

PDF Datasheet Preview

Basys 2 FPGA Board Reference Manual
1300 Henley Court Pullman, WA 99163

Overview

The Basys 2 board is a circuit design and implementation platform that anyone can use to gain experience building real digital circuits. Built around a Xilinx Spartan-3E Field Programmable Gate Array and a Atmel AT90USB2 USB controller, the Basys 2 board provides complete, ready-to-use hardware suitable for hosting circuits ranging from basic logic devices to complex controllers. A large collection of on-board I/O devices and all required FPGA support circuits are included, so countless designs can be created without the need for any other components.

Full Speed USB2 Port

JTAG and data transfers

Data port

Platform Flash
config ROM

JTAG port

Settable Clock Source
25 / 50 / 100 MHz

Xilinx Spartan3E-100 CP132

PS/2 I/O Devices Port
8 bit color
4444 JA JB JC JD

VGA Port

Pmod Connectors
• 100,000-gate Xilinx Spartan 3E FPGA
• Atmel AT90USB2 Full-speed USB2 port
providing board power and programming/data transfer interface
• Xilinx Platform Flash ROM to store FPGA configurations
• 8 LEDs, 4-digit 7-segment display, 4 buttons, 8 slide switches
• PS/2 port and 8-bit VGA port
• User-settable clock 25/50/100MHz , plus socket for 2nd clock
• Four 6-pin header expansion connectors
• ESD and short-circuit protection on all I/O signals.

Figure The Basys 2 board block diagram and features.

Four standard expansion ports allow designs to grow beyond the Basys 2 board using breadboards, user-designed circuit boards, or Pmods are inexpensive analog and digital I/O modules that offer A/D & D/A conversion, motor drivers, sensor inputs, and many other features . Signals on the 6-pin connectors are protected against ESD damage and short-circuits, ensuring a long operating life in any environment. The Basys 2 board works seamlessly with all versions of the Xilinx ISE tools, including the free WebPack. It ships with a USB cable that provides power and a programming interface, so no other power supplies or programming cables are required.

The Basys 2 board can draw power and be programmed via its on-board USB2 port. Digilent’s freely available PCbased Adept software automatically detects the Basys 2 board, provides a programming interface for the FPGA and Platform Flash ROM, and allows user data transfers see for more information .

DOC# 502-155

Copyright Digilent, Inc. All rights reserved. Other product and company names mentioned may be trademarks of their respective owners.

Page 1 of 12

Basys2 FPGA Board Reference Manual

The Basys 2 board is designed to work with the free ISE WebPack CAD software from Xilinx. WebPack can be used to define circuits using schematics or HDLs, to simulate and synthesize circuits, and to create programming files. WebPack can be downloaded free of charge from

The Basys 2 board ships with a built-in self-test/demo stored in its ROM that can be used to test all board features. To run the test, set the Mode Jumper see below to ROM and apply board power. If the test is erased from the ROM, it can be downloaded and reinstalled at any time. See Basys 2 for the test project as well as further documentation, reference designs, and tutorials.
1 Board Power

The Basys 2 board is typically powered from a USB cable, but a battery connector is also provided so that external supplies can be used. To use USB power, simply attach the USB cable. To power the Basys 2 using a battery or other external source, attach a 3.5V-5.5V battery pack or other power source to the 2-pin, 100-mil spaced battery connector three AA cells in series make a good volt supply . Voltages higher than 5.5V on either power connector may cause permanent damage.

Input power is routed through the power switch SW8 to the four 6-pin expansion connectors and to a Linear Technology LTC3545 voltage regulator. The LTC3545 produces the main 3.3V supply for the board, and it
also produces 2.5V and 1.2V supply voltages required by the FPGA. Total board current is dependent on FPGA configuration, clock frequency, and

Figure Basys 2 power circuits.
external connections. In test circuits with roughly 20K gates routed, a 50MHz clock source, and all LEDs
illuminated, about 100mA of current is drawn from the 1.2V supply, 50mA from the 2.5V supply, and 50mA from
the 3.3V supply. Required current will increase if larger circuits are configured in the FPGA, or if peripheral boards
are attached.

The Basys 2 board uses a four layer PCB, with the inner layers dedicated to VCC and GND planes. The FPGA and the other ICs on the board have large complements of ceramic bypass capacitors placed as close as possible to each VCC pin, resulting in a very clean, low-noise power supply.
2 Configuration

After power-on, the FPGA on the Basys 2 board must be configured before it can perform any useful functions. During configuration, a “bit” file is transferred into memory cells within the FPGA to define the logical functions and circuit interconnects. The free ISE/WebPack CAD software from Xilinx can be used to create bit files from VHDL, Verilog, or schematic-based source files.

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Datasheet ID: 410-155P-KIT 509721