ST ST624 B-EMU2 Series User manual

July 1998 1/21

This is advanceinformation from STMicroelectronics. Details are subject tochange withoutnotice.

ST624xB-EMU2

REAL TIME EMULATION

DEVELOPMENT TOOLS FOR ST624x MCUs

HARDWARE FEATURES

■Supports ST62 and ST63 family

■Real time emulation

■32 KBytes of emulation memory

■Breakpoint on a single address or onan address

area

■Break eventscanbe defined onProgram Space,

Data space mixed with up to 4 external signals

■2 full programmable output for synchronisation

■Read/Write registers on the fly (without wait

state)

■Selective trace in Range or Start/Stop

■Break on Stack Overflow

■1K of real trace memory

■Tracing of up to 32 bits including 4 external

signals

SOFTWARE FEATURES

■Symbolic debugger at source level

■On-line assembler/disassembler

■Log files capable ofstoringanydisplayed screen

■Command filesable toexecute asetof debugger

commands

2/21

Table of Contents

ST624xB-EMU2 . . . . . . . . . .............................1

1 DELIVERY CHECK . . . . . . . . . . . .................................................4

2 ST6 HDS2 NEW MAINFRAME EMULATOR . . ......................................5

2.1 MAIN BOARD . . . . .......................................................6

2.2 ST6 HDS2 MAIN BOARD . . . ...............................................6

2.2.1 External output: OUT1 and OUT2. . . ....................................6

2.2.2 Data acquisition signals . . . ...........................................7

2.2.3 LEDsRUN,STOP,WAIT .............................................7

2.3 INSTALLING AN ST6 EMU2 DEVELOPMENT TOOL. . . . . . . . . . . . . . . . .............7

2.4 INSTALLING A DEDICATION BOARD IN AN ST6 HDS2. . . . . . . . . . . . . . ............7

2.5 COMPONENTS LAYOUT OF ST6 MAIN BOARD (MB097) . . . . . . . . ................8

2.6 COMPONENTS LAYOUT OF ST6 MAIN BOARD (MB174) . . . . . . . . ................9

3 ST6 MAINFRAME EMULATOR (FIRST GENERATION)..............................10

3.1 CLZ80BOARD..........................................................10

3.2 GPFM/3BOARD ........................................................10

3.3 INTERFACE BOARD . . . . . . . . . . ...........................................11

3.4 INSTALLING AN ST6 HDS1 DEVELOPMENT TOOL. . . . . . . . . . . . . . . . ............11

3.5 INSTALLING A DEDICATION BOARD IN AN HDS1 DEVELOPMENT TOOL. . . . . . . . . 11

4 DEDICATION BOARD (DBE) . . . . ...............................................12

4.1 VOLTAGE FUNCTIONING RANGE..........................................12

4.2 JUMPER DESCRIPTION ON DEDICATION BOARD . . . . ........................13

4.2.1 VAPLI-PULLUP: default value on output buffers W11 . . . . . .................13

4.2.2 Clock Source Selection: W2 ..........................................13

4.2.3 Reset delay duration: W3 . . . . . . . . . . . . . . . . . . . . ........................13

4.2.4 Mask option on Timer 1: W4 named PUPTIM1. . . . . . . . . . . . . . . . ............13

4.2.5 Bank RAM/EEPROM selection: W4 named RPG0, RPG1. . . . ...............14

4.2.6 ROM Program Size selection: option on W5 named ROM. . . . ...............14

4.2.7 Timer 2 Enable/Disable: option on W5 named TIM2. . . . . . . . . . . . . . ..........14

4.2.8 Watchdog: W5 named WD . . . . . . .....................................14

4.2.9 Mask option on NMI Input: W5 named PUPNMI. . . . .......................14

4.2.10 Real Time Clock Enable/Disable: option on W5 named RTC.................14

4.2.11 Combiports, Real Time clock selection: W8, W9 . . . . ......................15

4.2.12 W1 (EPLD): reserved ...............................................15

4.2.13 Internal Oscillator frequency selection: W6, W7 . . . ........................15

3/21

Table of Contents

4.3 PROBE: THE SCHRINK DIP 56 . . . . . . . . . . . . . . . . . . . . ........................16

4.4 PROBE: INSTALLING THE FERRITE COIL FOR EMC COMPATIBILITY . . . . . . . . . . . . 16

4.5 EMULATED PERIPHERALS . . . ............................................16

4.5.1 ProgramRom .....................................................16

4.5.2 Data Space Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ................16

4.5.3 Timer 1, Timer 2, SPI, Watchdog ......................................16

4.5.4 Analog to Digital Converter . ..........................................17

4.5.5 PortA ...........................................................17

4.5.6 PortB ...........................................................17

4.5.7 Port C: combiports. .................................................17

4.5.8 32 Khz Oscillator . . . . ...............................................18

4.5.9 LCDDRIVER .....................................................18

5 TROUBLESHOOTING ........................................................19

5.1 ATPOWERUP .........................................................19

5.2 DURING EMULATION: PROBLEM WITH PROGRAM COUNTER. . . ..............19

5.3 RESET EMULTATION IN REAL TIME. . . . . ...................................19

5.4 DISCREPANCIES BETWEEN EMULATOR AND ROM OR EPROM DEVICE. . . . . . . . . 19

5.5 AVOID THE MOST FREQUENT PROBLEMS WHEN PROGRAMMING ST6 MICROS!. 20

5.5.1 Execution of Interrupt ...............................................20

5.5.2 Execution of WAIT and STOP instructions . . . . . . . . . . . . . . . ................20

4/21

ST624xB-EMU2 - DELIVERY CHECK

1 DELIVERY CHECK

This development tool is able to emulate all com-

ponents belonging to the ST624BX family, it is

able also to emulate the old ST624X family devic-

es.

The choice of emulated ROM Device is made ei-

ther by properly setting the configuration on the

dedication board or by software when using the

new Debugger WGDB6 under Windows

TM, and by

connecting the appropriate PROBE on the dedica-

tion board through the flat cables.

When receiving a whole ST624XB development

tool or a ST624XB-DBE please refer to the

“PRODUCT DELIVERY” to check the content of

the package.

Instructions for use - Warning

This development tool conforms with the EN55022

emissions standard for ITE, and with generic

50082-1 immunity standards. Then, it complies

with the 89/336/EEC directive.

The product is a A Class apparatus. In a residen-

tial environment this device may cause radioelec-

trical disturbance which may require that the user

adopts appropriate precautions.

5/21

ST624xB-EMU2 - ST6 HDS2 NEW MAINFRAME EMULATOR

2 ST6 HDS2 NEW MAINFRAME EMULATOR

The new ST6 HDS2 mainframe (with MB097 main

Board) has been designed to replace the HDS1

version. The main modifications are:

– Communication transfer rate: it is now much fast-

er thanks to the use of parallel port.

– Dimension and weight: the old 3 boards, basic

part of the system,have been redesigned in one

board.

– The cost of the overall system has been well re-

duced.

In the second version of ST6 HDS2, (metal box

with MB174 main Board) modified for CEM con-

formity, these new features have been introduced:

– Read/ Write registers on the fly during execution

of program without any wait state.

– Selective record of bus in logical analyser in

Range or Start/Stop mode.

– Output OUT1 and OUT2 for synchronisation of

an external equipment, programmable in the

same way as Selective trace, in Range or Start/

Stop mode.

– Stack overflow: a break is automatically generat-

ed (by default) in case of stack overflow.

– Break execution: in this new version, the pro-

gram stops before the execution of the fetch.

These main frame consist of a basic part, common

to all ST6 devices, and one ST62 or ST63 sub

family dedicated board depending on the specific

device to emulate. This new emulator is full com-

patible with existing dedicated boards, excepting

ST631XX-DBE which have been designed in 2

boards.

Only the dedicated board has to be changed to

emulate a new device within the ST62/ST63 sub

families.

The use of parallel port allows a very faster com-

munication transfer rate. The symbolic debugger,

software part of the real time emulation tool, can

be run on a PC, and is common to all ST62 and

ST63 devices.

The debugger uses a windowed menu driven in-

terface, and enables the user to set the configura-

tion of the emulator.

Figure 1. Hardware Development System Emulator

HARDWARE DEVELOPMENT SYSTEM

EMULATOR (HDS2)

Stop Wait Run

TriggersOUT-2OUT-1

ST6 HDS2

EMULATOR (.EMU2)

1234

Power

Dedication Board

ST6 probe

Parallel Port connection

6/21

ST624xB-EMU2 - ST6 HDS2 NEW MAINFRAME EMULATOR

2.1 MAIN BOARD

The Main board controls the emulator thanks to a

ST9 central processing unit which executes com-

mands coming from host computer through the

parallel line.

The board contains all emulation resources, the

core of the ST6, the Program ROM emulation, the

break point logic, the trace memory, the automa-

ton and all necessary logic for a real time emula-

tion.

Two connectors, J1 and J2, are used to exchange

signals with the dedication board.

The amount ofprogram memory in the main board

is factory set at 32k, in fact the size of the memory

depends on the dedication board, which contains

the Program Rom Pagination Register (PRPR) if it

exists (no PRPR for memory size lower than 4k).

No configuration jumpers are required.

2.2 ST6 HDS2 MAIN BOARD

On the rear panel there is:

– a power plug to connect power: 5 Volts 3 Amp

min. (The delivered power is 100 volts to 240

volts input and 5 Amp output).

– a power switch.

– a parallel connector for an IBM PC(TM) compat-

ible.

On front panel:

– a led “POWER ON” signal.

– OUT 1 and OUT 2 signals which can be used for

synchronizing an external equipment.

– 2 leds indicating when the ST6 core is in “STOP”

or “WAIT” mode.

– a 16 pin connector for data acquisition signals.

The explanation of these signals is done in the

debugger manual.

2.2.1 External output: OUT1 and OUT2

For debugging hardware it is very useful to have

synchronization signals. The goal of the outputs 1

and 2 is to offer this feature to the user. They can

be programmed differently whether the debugger

used is the DOS debugger ST6NDB or the Source

Level Debugger WGDB6, as explained in the two

following paragraph. They are full programmable

with WGDB6.

Output OUT1 and OUT2 under ST6NDB

When using old DOS Version of debugger

ST6NDB:

This feature is programmable thanks to Hardware

Breakpoint Menu. The breakpoint MENU allows to

define breaking events. These events will gener-

ate an actual breakpoint only if break enable is

ON. When break is off, these events are existing in

the development tool. In the HDS2 emulator ver-

sion up to 4.3, the signals OUT1 and OUT2 are

connected to these internal breaking events.

Therefore these signals can be used to synchro-

nize an external device while running (breakpoint

off).

Output OUT1 and OUT2 under WGDB6

When using WGDB6 new Version of debugger at

source level under WindowsTM:

This feature is full programmable thanks to Hard-

ware Events/Trigger Menu. Output OUT1 and

OUT2 can be programmed in two ways:

– Events for synchronisation: it allows to the user

to preset pulses synchronisation for an external

equipment. The events can be defined by ad-

dresses or by range of addresses.

– Events for Timing Measure: it allows to the user

to measure time elapsed during a subroutine for

example. In this case, output OUT2 is SET on a

user defined address, and RESET on an other

one, OUT1 is the ST6 clock cycle gated by

OUT2.

These 2 functioning modes are clearly displayed

on screen.

7/21

ST624xB-EMU2 - ST6 HDS2 NEW MAINFRAME EMULATOR

2.2.2 Data acquisition signals

In a same way as are recorded Buses, Flags,

Bank registers in the trace memory, the ST6 HDS2

offers the possibility to record 4 external signals.

These signals must be connected on the pin

1,3,5,7 of the Analyser probe connector on the

front panel of the HDS2, as shown below. A flatca-

ble with probe tip is delivered with the emulator.

These inputs are CMOS compatible at 5 Volts

2.2.3 LEDs RUN, STOP, WAIT

Three leds have been added to indicate to the

user the state of the core or of the development

tool during emulation.

First at power up, the red led is ON and becomes

OFF after a few time. It lights one short time during

connection establishment between ST6 HDS2

emulator and host computer. After that, the Run

led must be OFF.

If the LED RUN remains ON after power up, it will

cause a default in initialisation of emulator, this de-

fault can be caused by:

– The emulation is in Reset: if the emulator is con-

nected on a target application, this application

must have been powered before.

– There is no clock: see chapter about clock

source selection.

After a correct initialisation:

When user’s program is running (in real time), led

RUN is on.

When ST6 core is in WAIT mode, led WAIT is ON.

When ST6 core isin STOP mode, both leds STOP

and WAIT are ON.

2.3 INSTALLING AN ST6 EMU2 DEVELOPMENT

TOOL

– When receiving a whole development tool, the

dedication board is delivered inside the main-

frame.

– You have just to:

– connect the power supply to the mains(100 to

240 volts).

– connect the output (5Volts) of power supply on

the DIN connector of the rear panel

– connect the parallel cable between the parallel

connector and the host computer.

For installing the probe, please refer to the appro-

priate item in the Dedication Board chapter.

2.4 INSTALLING A DEDICATION BOARD IN AN

ST6 HDS2

If there is already a dedication board in the devel-

opment tool, you have simply to:

– unscrew the 2 screws on each side of the dedi-

cation board, and press outward on the release

buttons to extract the board.

Then insert the new dedication board in the guide

rods and push it hardly in the backplane, and:

– screw the 2 screws on each side of the dedica-

tion board.

For installing the probe, please refer to the chapter

“Installing the probe”.

AL3 AL2 AL1 AL0

VCC GND

Caution:

+5V EMU

8/21

ST624xB-EMU2 - ST6 HDS2 NEW MAINFRAME EMULATOR

2.5 COMPONENTS LAYOUT OF ST6 MAIN BOARD (MB097)

VR02091A

9/21

ST624xB-EMU2 - ST6 HDS2 NEW MAINFRAME EMULATOR

2.6 COMPONENTS LAYOUT OF ST6 MAIN BOARD (MB174)

VR02091U

10/21

ST624xB-EMU2 - ST6 MAINFRAME EMULATOR (FIRST GENERATION)

3 ST6 MAINFRAME EMULATOR (FIRST GENERATION)

The ST6 mainframe emulator contains positions

for 5 boards :

– CLZ80 board must be inserted on the first (bot-

tom) position

– GPFM/3 board must be on second position

– interface N (DB014) must be inserted on third

position

– dedication board ST638X (MB167) inserted in

one of the two top position

On the rear panel there is :

– a main-power selector to select 110 voltsor 220

volts.

– a power plug

– a power switch

On front panel :

– the RS232 connector to link the emulator with an

IBM PC

– EXT-SIG connector that allows you to choose

between 3 groups of 4 signals tobe memorize on

trace memory. These signals are independent

from the probe data acquisition signals. The ex-

planation of these signals is done in the debug-

ger manual

– Z80 reset push button

– ST6 INT push-button

3.1 CLZ80 BOARD

The CLZ80 board controls the mainframe emula-

tor and it is linked to an IBM PC through an RS232

line. On this board only 2 connectors are used :

– J5 connected to the front panel RS232 25 pin

connector

– J4 connected to the front panel Z80-RESET

push-button

3.2 GPFM/3 BOARD

GPFM/3 board contains the emulation resources :

Program ROM emulation, break point, trace mem-

ory.

Two connectors, J3 and J4, are used to exchange

signals with the interface board.

When emulating ST62XX or ST63XX, the inter-

face board is an N-WELL interface board.

The two connectors are used.

For emulating components of other families, the

interface board can be a P-WELL interface board:

in this case only one connector is used, the jump-

ers of W2 must be plugged.

JUMPERS SETTING for ST62XX and ST63XX

emulation:

W1:

All jumpers must be removed.

W2 :

One jumper only must beset tolink pin 1 to pin 16.

CONNECTORS :

J3 and J4 :

Used to link this board with the N-WELL interface

board.

J5 :

Used to connect the data acquisition probe.

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