ST20-JPI-110 [STMICROELECTRONICS]

PC PARALLEL PORT TO JTAG INTERFACE ; PC并行端口JTAG接口\n


型号：	ST20-JPI-110
厂家：	ST
描述：	PC PARALLEL PORT TO JTAG INTERFACE PC并行端口JTAG接口\n PC
文件：	总10页 (文件大小：81K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

ST20-JPI

PC PARALLEL PORT TO JTAG INTERFACE

PRODUCT INFORMATION

FEATURES

DESCRIPTION

• Desktop mounted parallel port to JTAG inter-

The ST20-JPI parallel port to JTAG interface is

a host interface to allow connection from a PC

parallel port to any JTAG diagnostic controller

based ST20 development board. The interface

plugs into any standard PC 25 way D-type

parallel port. Supported parallel port modes

are:

face

• Standard 25 way D-type parallel port connec-

tion

• Standard 26 way D-type differential OS-Link

port for connection to a B300.

• Standard 20 way IDC cable for JTAG connec-

tion.

• Nibble mode

• Byte mode

• EPP mode

• Plug top power supply

• Supports nibble, byte and EPP mode parallel

port standards

depending on which mode the host PC can

support. Connection to the development target

is via a 20 way IDC JTAG connector. Once

connected, the development target can be

accessed using the MS Windows drivers

supplied with the standard ST20 toolset.

1/10

September 1996

42 1685 00

Contents

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

2.1

2.2

2.3

Hardware Installation - PC ..................................................................................................................... 4

Hardware Installation - B300 ................................................................................................................. 5

Software Installation .............................................................................................................................. 5

Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

3.1

3.2

3.3

3.4

3.5

3.6

The ST20-JPI front panel ....................................................................................................................... 6

The ST20-JPI rear panel ....................................................................................................................... 6

Differential Link Connection ................................................................................................................... 7

JTAG Connection .................................................................................................................................. 7

TrigIn/TrigOut SMB Coaxial Connectors ............................................................................................... 8

Power Supply Connector ....................................................................................................................... 8

Recommended Target Circuitry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Field Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Ordering information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

2/10

ST20-JPI

1 Introduction

The ST20-JPI parallel port to JTAG interface is a host interface to allow connection from a PC

parallel port to any JTAG based ST20 development board. The interface plugs into any standard

PC 25 way D-type parallel port. Supported parallel port modes are:

•

Nibble mode

Byte mode

EPP mode

depending on which mode the host PC can support. Connection to the development target is via a

JTAG connector. Once connected, the development target can be accessed using the MS Windows

drivers supplied with the standard ST20 toolset.

3/10

ST20-JPI

2 Installation

2.1 Hardware Installation - PC

The ST20-JPI has six connections: Parallel port; Differential OS-Link, JTAG, TrigIn, TrigOut and

Power supply. To install the hardware connecting to a PC, the following steps should be followed:

•

Plug the 25-way D-type of the parallel port cable built into the interface, into the parallel port

of the PC.

•

Plug the target development system into the 20-way IDC connector using a 20 way IDC

cable.

•

Plug power supply cable into PSU socket of the interface.

Plug the power supply into the mains socket.

Switch on the PC.

Switch on the power supply. The LEDs on the interface should illuminate once the software

is running. For a description of the meaning of the LEDs, see the ST20 toolset documenta-

tion.

Host

Mains PSU

Target development board

ST20-JPI

Parallel port to JTAG interface

ST20

Figure 2.1 ST20-JPI connections basic conﬁguration

4/10

ST20-JPI

2.2 Hardware Installation - B300

The ST20-JPI can also be attached to the Ethernet via a B300. To install the hardware connecting

to a B300, the following steps should be followed:

•

Connect the B300 to the ST20-JPI using a Differential OS-Link cable supplied with the

B300.

•

Plug the target development system into the 20-way IDC connector using a 20 way IDC

cable.

•

Plug power supply cable into PSU socket of the interface.

Plug the power supply into the mains socket.

Switch on the B300.

Switch on the power supply to the ST20-JPI. The LEDs on the interface should illuminate

once the software is running. For a description of the meaning of the LEDs, see the ST20

toolset documentation.

•

Switch on the Target power supply.

2.3 Software Installation

For installation of the DLL and VxD drivers, please refer to the ST20 Toolset software installation

documentation.

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ST20-JPI

3 Connectors

3.1 The ST20-JPI front panel

LEDs

20 Pin IDC Header

JTAG Connection

SMB

TrigOut

SMB

TrigIn

3.2 The ST20-JPI rear panel

Differential OS-Link

PSU Connector

Parallel Port Connector

6/10

ST20-JPI

3.3 Differential Link Connection

The Differential OS-Link connector is used to connect the ST20-JPI to a B300 instead of a Parallel

port.

Description

+notSSDownReset

+notSSDownAnalyse

+notSSDownError

+notSSUpReset

+notSSUpAnalyse

+notSSUpError

+LinkOut

Description

GND

-notSSDownReset

-notSSDownAnalyse

-notSSDownError

-notSSUpReset

-notSSUpAnalyse

-notSSUpError

-LinkOut

+LinkIn

GND

-LinkIn

Table 3.1 26 way D-type connector

3.4 JTAG Connection

The JTAG connector is a 20 pin male IDC header. The following table shows the pinout of the

ST20-JPI and the pinout required for the target board:

Pin Number

Host Connection

Target Connection

Even Numbers

GROUND

Reserved

TrigIn

GROUND

Do Not Wire

TrigOut

TrigIn

Reserved

TMS (Out)

TCK (Out)

TDO

Do Not Wire

TMS (In)

TCK (In)

TDI

TDO

notRST (Out)

notTRST (Out)

notRST (In)

notTRST (In)

Table 3.2 JTAG connector pinout

7/10

ST20-JPI

3.5 TrigIn/TrigOut SMB Coaxial Connectors

The two coaxial SMB connectors to the left of the LEDs are used to connect the ST20-JPI to a

Logic Analyser. They are used to signal between the Host, Target and Logical Analyser when an

event occurs. If, for instance, an event occurs on the Target processor, the TrigOut signal is

triggered which could start the Logic Analyser tracing an external event, so aiding software/

hardware debugging.

TrigIn/Out

GND

3.6 Power Supply Connector

The ST20-JPI uses a 2.5mm power connector. The voltage range is 8-13V dc.

GND

4 Recommended Target Circuitry

To ensure correct connection to the target processor, the following circuit should be used:

VCC

ST20-JPI

10K

ST20

TDO

TDI

TMS

TCK

notTRST

TrigIn

TrigOut

notRST

Board PowerOnReset

Target Board

8/10

ST20-JPI

5 Field Support

SGS-THOMSON Microelectronics Limited products are supported worldwide through Sales

Ofﬁces and authorized distributors.

6 Ordering information

Description

Order Number

ST20-JPI/110

ST20-JPI/220

ST20-JPI/UK

ST20-JPI Parallel Port to JTAG Interface (US)

ST20-JPI Parallel Port to JTAG Interface (European)

ST20-JPI Parallel Port to JTAG Interface (UK)

Table 6.1 Ordering information

9/10

ST20-JPI

Information furnished is believed to be accurate and reliable. However, SGS-THOMSON Microelectronics assumes no responsibility for the conse-

quences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is

granted by implication or otherwise under any patent or patent rights of SGS-THOMSON Microelectronics. Speciﬁcations mentioned in this publication

are subject to change without notice. This publication supersedes and replaces all information previously supplied. SGS-THOMSON Microelectronics

products are not authorized for use as critical components in life support devices or systems without express written approval of SGS-THOMSON

Microelectronics.

IMS and DS-Link are trademarks of SGS-THOMSON Microelectronics Limited.

is a registered trademark of the SGS-THOMSON Microelectronics Group.

SGS-THOMSON Microelectronics GROUP OF COMPANIES

Australia - Brazil - Canada - China - France - Germany - Hong Kong - Italy - Japan - Korea - Malaysia - Malta - Morocco -

The Netherlands - Singapore - Spain - Sweden - Switzerland - Taiwan - Thailand - United Kingdom - U.S.A.

10/10

ST20-JPI-110 [STMICROELECTRONICS]

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