Digilent 210-251P-BOARD Bedienungsanleitung PDF herunterladen

1300 Henley Court

Pullman, WA 99163

509.334.6306

www.digilentinc.com

JTAG-SMT2

Programming Module for Xilinx

FPGAs

Revised March 2, 2015

DOC#: 502-251

Other product and company names mentioned may be trademarks of their respective owners.

Page 1 of 11

Overview

The Joint Test Action Group (JTAG)-SMT2 is a compact, complete and fully self-contained surface-mount

programming module for Xilinx field-programmable gate arrays (FPGAs). The module can be accessed directly from

all Xilinx Tools, including iMPACT, Chipscope™, and EDK. Users can load the module directly onto a target board

and reflow it like any other component.

The JTAG-SMT2 uses a 3.3V main power supply and a separate Vref supply to drive the JTAG signals. All JTAG

signals use high speed, 24mA, three-state buffers that allow signal voltages from 1.8V to 5V and bus speeds of up

to 30MBit/sec. The JTAG bus can be shared with other devices as systems hold JTAG signals at high-impedance,

except when actively driven during programming. The SMT2 module is CE certified and fully compliant with EU

RoHS and REACH directives. The module uses a standard Type-A to Micro-USB cable available for purchase from

Digilent, Inc.

Users can connect JTAG signals directly to the corresponding FPGA signals, as shown in Fig. 1. For best results,

mount the module adjacent to the edge of the host PCB over a ground plane. Although users may run signal traces

on top of the host PCB beneath the SMT2, Digilent recommends keeping the area immediately beneath the SMT2

clear.

Note: Keep the impedance between the SMT2 and FPGA below 100 Ohms to operate the JTAG at maximum speed.

4 8

GND

TCK

TDI

TMS

GPIO1

GPIO2

GPIO0

TDO

VREF

GND

Vdd (3.3V)

 Small, complete, all-in-one JTAG programming/debugging

solution for Xilinx FPGAs

 Compatible with all Xilinx Tools

 Compatible with IEEE 1149.7-2009 Class T0 – Class T4

(includes 2-Wire JTAG)

 GPIO pin allows debugging software to reset the processor

core of Xilinx’s Zynq® platform

 Single 3.3V supply

 Separate Vref drives JTAG signal voltages; Vref can be any

voltage between 1.8V and 5V.

 High-Speed USB2 port that can drive JTAG/SPI bus at up to

30Mbit/sec (frequency settable by user)

 SPI programming solution (modes 0 and 2 up to 30Mbit/sec,

modes 1 and 3 up to 2Mbit/sec)

 Uses micro-AB USB2 connector

 Small form-factor surface-mount module can be directly

loaded on target boards

 A similar circuit is available as a stand-alone programming

cable; see Digilent’s JTAG-HS2.

Features include:

The JTAG-SMT2

1 2 3 4 5 6 ... 10 11

Inhaltsverzeichnis

Seite 1 - Overview

1300 Henley Court Pullman, WA 99163 509.334.6306 www.digilentinc.com JTAG-SMT2 Programming Module for Xilinx® FPGAs Revised March 2, 2015 DOC#: 50

Seite 2 - Table 1. Supported features

Seite 3 - Software Support

Seite 4

Seite 5 - GPIO Pins

Seite 6 - Application Examples

Seite 7 - Example 2:

Seite 8 - Example 3:

Seite 9 - SMT2 Top View

Seite 10 - Figure 12. Timing diagram

Seite 11 - Packaging

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