ST72C254 [STMICROELECTRONICS]

REAL-TIME DEVELOPMENT TOOLS FOR THE ST7 MCU FAMILY; 实时开发工具进行ST7单片机系列


型号：	ST72C254
厂家：	ST
描述：	REAL-TIME DEVELOPMENT TOOLS FOR THE ST7 MCU FAMILY 实时开发工具进行ST7单片机系列
文件：	总4页 (文件大小：69K)
中文：	中文翻译
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ST7MDTx-EMU2

REAL-TIME DEVELOPMENT TOOLS

FOR THE ST7 MCU FAMILY

FEATURES

■ A common Hardware Development System

mainframe supports the entire ST7 family of

MCUs, in conjunction with the appropriate

ST7xxx-DBE Dedicated Board Emulator.

■ Logic Analyzer events may trigger a breakpoint

or simply define data capture parameters, in

accordance with user preferences.

■ Simple connection of the emulator system to the

Host PC via RS-232 serial channel or via

parallel port

■ Real-time source level emulation allows viewing

and breakpoint setting on high level source

code rather than on disassembled target code

for optimum user friendliness.

■ Emulation system may be driven by a Windows-

based GNU debugger software or DOS

software running on host PC, allowing full

control and monitoring of hardware resources.

■ Multiple windows allow concurrent real-time

display of source code, MCU resources, internal

registers, trace data, etc.

■ Log files allow storage and subsequent

redisplay of any displayed screen for

subsequent analysis.

■ 64 KBytes of user modifiable and configurable

emulation RAM, allows memory mapping of all

ST7 family devices as well as modelling

hypothetical memory configurations.

■ Unlimited breakpoints may be set for any op-

code fetch or any address access, and

conditions may be defined for the generation of

2 external synchronization signals.

■ Command files can be used to execute a set of

■ 1K by 32-bit wide trace memory for Logic

Analyzer allows complex and sequential events

to be defined on any combination of address

and data, as well as 3 internal and 5 external

logic signals.

debugger commands in batch mode.

■ Editable configuration files ensure tailoring of

working environment to user preferences.

Note 1. On the ST7-EMU2 version of the Emulator.

February 2000

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ST7MDTx-EMU2

OVERVIEW

The ST7 real-time development tools consist of

various hardware and software components,

which together form a flexible and sophisticated

system designed to provide comprehensive devel-

opment support for the ST7 family of MCUs.

memory location. An on line assembler/disassem-

bler is also available to ease debugging.

An important feature of the ST7 development sys-

tem is that true source level debugging is possible,

meaning code may be viewed at source level and

breakpoints may be set on high level code, rather

than on disassembled target code. This is much

more meaningful to the user and ensures a more

convivial and productive development environ-

ment.

The Hardware Development System (HDS) main-

frame is common to all ST7 devices and, in con-

junction with various Dedication Board Emulators

(DBE), allows emulation and development of spe-

cific devices. Only the DBE and probe need to be

changed to emulate a new ST7 family device.

A separate and concurrent Logic Analyzer func-

tion is available. This hardware implemented func-

tion features 1KByte of 32-bit wide trace memory

which allows events to be defined for any combi-

nation of address (16 bits) and data (8 bits), as

well as according to the state of 3 internal and 5

external logic signals. Complex and sequential

conditions may be defined, and all bits are maska-

ble. The external signals are input from 5 probes

which can be connected to the target hardware.

The development system is controlled by a Host

PC on which a choice of Windows-based software

may be run. The Host PC is simply connected to

the Emulator Mainframe by means of an RS-232

serial link or a parallel port. The STVD7 Windows

GNU Debugger software suite is supplied as

standard issue with the Emulator hardware, in ad-

dition to the conventional DOS ST7 Software

suite, which includes a macroassembler, a link-

er/loader. Third party C Toolchain and Debugger

software is also available. The Windows-based

debugger provides a user friendly and highly flexi-

ble interface which may be configured to precisely

match the user’s requirements. All emulator set-

tings are accessible via the control software.

Trace memory events may be used as break-

points or simply to trigger data acquisition accord-

ing to user specified parameters, without halting

the target system. Such a powerful tool enables

the user to detect and trap virtually any pattern,

and thus rapidly debug the target application.

Once assembled, and/or compiled and linked, the

application software may be downloaded to the

real-time emulation memory, which can be config-

ured, mapped and modified as required by the us-

er. The device probe is then connected to the ap-

plication target hardware in place of the MCU and

real-time emulation of the target application can

begin, thus allowing sophisticated testing and de-

bugging of both application hardware and soft-

ware.

Log files offer the ability to send any screen dis-

play to a text file. In particular, log files are very

useful to save the contents of the logic analyzer

and/or the contents of data registers to be subse-

quently analysed or printed.

Command files can be used to execute a set of

debugger commands in batch mode, to simplify

and speed up the emulation session.

Finally, when the target program is fully de-

bugged, the appropriate ST7 EPROM/OTP/

FLASH programming board can be used to pro-

gram the EPROM/OTP/FLASH version of the tar-

get device to allow stand-alone testing and evalu-

ation.

User definable breakpoints allow the MCU to be

halted when the application software accesses

specific addresses, and/or addresses within a se-

lected range, and/or on data fetch cycles. The

user may then read and modify any register and

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ST7MDTx-EMU2

ORDERING INFORMATION

DEVICE

ST72E101/T101

ST72C104

PACKAGE

SDIP32/SO28

SDIP42/TQFP44

EMULATOR

DEDICATION BOARD

ST7MDT1-DBE

ST7MDT1-EMU2

ST7MDT1-EMU2B

ST7MDT1-EMU2

ST7MDT1-EMU2B

ST7MDT1-EMU2

ST7MDT1-EMU2B

ST7MDT2-EMU2

ST7MDT2-EMU2B

ST7MDT1-DBE2B

ST7MDT1-DBE

ST72E212/T212/E213/T213

ST72C215/C216

ST72E251/T251

ST72C254

ST7MDT1-DBE2B

ST7MDT1-DBE

ST7MDT1-DBE2B

ST7MDT2-DBE

ST72E121/T121

ST72C124

ST7MDT2-DBE2B

ST7MDT2-DBE

ST72E311/T311

ST72E331

SDIP42/TQFP44/SDIP56/TQFP64 ST7MDT2-EMU2

SDIP42/TQFP44/SDIP56/TQFP64 ST7MDT2-EMU2B

ST7MDT2-DBE

ST72C334

ST7MDT2-DBE2B

ST72E5XX/T5XX/E311R/T311R

ST72E272/T272

ST72E37X/T37X

ST72E671/T671

TQFP64

ST7MDT2-EMU2B

ST7MDT4-EMU2

SDIP32/SO34

SDIP42/TQFP44/SDIP56/TQFP64 ST7MDT4-EMU2

SDIP56/TQFP64 ST7MDT4-EMU2

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ST7MDTx-EMU2

Notes:

Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences

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 STMicroelectronics. Specifications mentioned in this publication are subject

to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not

authorized for use as critical components in life support devices or systems without the express written approval of STMicroelectronics.

The ST logo is a registered trademark of STMicroelectronics

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ST72C254 [STMICROELECTRONICS]

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