SOFTEC MICROSYSTEMS IDB-HC08QY User Guide

r its use; nor for any infringements

IDB-HC08QY
Evaluation Board
For Motorola MC68HC908QY

User’s Manual

1. Introduction

Copyright © 2002 SofTec Microsystems®
DC00540

Overview

The IDB-HC08QY Evaluation Board demonstrates the capabilities of the
16-pin MC68HC908QY devices. The IDB-HC08QY Evaluation Board can
be used as a standalone application or with an emulator system, such as
inDART-HC08, through a MON08-compatible connection.

Board Features

The IDB-HC08QY Evaluation Board has the following hardware features:

1. An MC68HC908QY4 microcontroller (in DIP16 package, already
programmed with a demo application—in addition, you can also use
any of the MC68HC908QY family devices);

2. ZIF socket for the microcontroller;

3. A standard MON08 connector;

4. Eight jumpers to connect/disconnect each of the eight LEDs to/from
their respective Port B;

5. Eight high-efficiency (low-current) LEDs connected to Port B;

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E-mail (technical support): [e-mail]
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Important

SofTec Microsystems reserves the right to make improvements to its products, their documentation and software routines, without notice. Information
in this manual is intended to be accurate and reliable. However, SofTec Microsystems assumes no responsibility fo
of rights of third parties which may result from its use.

SOFTEC MICROSYSTEMS WILL NOT BE LIABLE FOR DAMAGES RESULTING FROM LOSS OF DATA, PROFITS, USE OF PRODUCTS, OR
INCIDENTAL OR CONSEQUENTIAL DAMAGES, EVEN IF ADVISED OF THE POSSIBILITY THEREOF.

Trademarks

inDART is a trademark of SofTec Microsystems.
Microsoft and Windows are trademarks or registered trademarks of Microsoft Corporation.
PC is a registered trademark of International Business Machines Corporation.
Other products and company names listed are trademarks or trade names of their respective companies.

IDB-HC08QY User's Manual

6. A potentiometer, together with a jumper to connect/disconnect it
to/from PTA1;

7. A push-button switch connected to RESET;

8. A push-button switch, together with a jumper to connect/disconnect it
to/from PTA4;

9. A 16-MHz oscillator, together with a jumper to connect/disconnect it
from the microcontroller’s OSC1 pin;

10. A connector for a 9-12-V, 200-mA (unregulated) power supply and an
auxiliary power supply connector for a 5-V (max., regulated), together
with a jumper to select the power supply source;

11. A connector area to access the I/O pins of the microcontroller for
expansion prototyping;

12. A prototyping area.

10

3

5

11

1

9

2

Supported Devices

The IDB-HC08QY Evaluation Board supports the following devices:

§ MC68HC908QY1;

§ MC68HC908QY2;

§ MC68HC908QY4;

§ And any future MC68HC908QY family pin-to-pin compatible device.

Recommended Reading

Motorola MCU CD-ROM or individual datasheet;
Motorola CPU08 Central Processor Unit Reference Manual;
inDART-HC08 User’s Manual.

7 8

The IDB-HC08QY Demo Board

4

12

6

Page 2

2. Getting Started

Overview

The IDB-HC08QY Evaluation Board may be used as a standalone
application or with a MON08-based emulator/programmer (host mode).

Standalone Mode

The IDB-HC08QY Evaluation Board comes with the microcontroller pre­programmed with a sample application. When working in standalone
mode, the sample application configures the A/D peripheral to convert on
the A/D channel connected to the potentiometer and displays the results
on the LEDs.

In order for the IDB-HC08QY Evaluation Board to work in standalone
mode, the MON08 connector’s pins must be jumpered as show below
(factory setting).

IDB-HC08QY User's Manual

MON08 Connector Jumpered for Standalone Mode Operation

Additionally, you must verify that the board’s other jumpers are set
correctly.

§ Make sure that both the “OSC SEL” (J7) jumper selects the “OSC”
position. This is needed to enable the on-board 16-MHz oscillator.

§ Make sure that all of the “LED ENABLE” jumpers (J8) and the
“POTENTIOMETER ENABLE” jumper (J10) are inserted.

§ Make sure that the pre-programmed sample device is in the
appropriate socket on the board. Finally, power up the board. The
IDB-HC08QY Evaluation Board can be powered either via the
“UNREG. VDD” connector (J3) or the “REG. VDD” connector (J4).

The “UNREG. VDD” connector accepts 9-12 V DC, 200-mA wall plug-in
power supply with a 2.1 mm pin and sleeve plug with positive in the
center and sleeve as ground. When powering the board through this
connector, make sure the “VDD SOURCE” connector (J5) selects the
“UNREG.” Position. The “UNREG. VDD” voltage is internally regulated to
5 V DC.

The “REG. VDD” connector accepts 5 V DC (max.). When powering the
board through this connector, make sure the “VDD SOURCE” connector
(J5) selects the “REG.” Position. The “REG. VDD” voltage directly powers
the microcontroller and the rest of the board.

Page 3

IDB-HC08QY User's Manual

Upon powering up the board, the green “POWER” LED turns on. By
rotating the potentiometer, you affect the results of the A/D conversion,
and the value of each conversion is displayed (in a linear bar fashion) on
the LEDs.

Host Mode

The IDB-HC08QY Evaluation Board can be used in conjunction with a
MON08-based emulator/programmer, such a SofTec Microsystems’
inDART-HC08 In-Circuit Debugger/Programmer or a Motorola
development tool.

If you use the evaluation board with SofTec Microsystems’ inDART­HC08, a sample application similar to that described in the previous
section can be executed in “Host” mode, where the program execution is
controlled by the host PC. You can use the PC, additionally, to debug the
application by, for example, execute the program step by step and
watching how the microcontroller registers vary, by using the Metrowerks’
CodeWarrior HC08 IDE provided with inDART-HC08. The example is
available both in Assembly and in C language. Please refer to the
inDART-HC08 user’s manual for a step-by-step tutorial.

In order to work with an emulator/programmer, the jumpers in the MON08
connector must be removed, and the MON08 cable of the
emulator/programmer must be connected to the evaluation board’s
MON08 connector (J1) connector, taking care of the proper polarity. The
J2 connector is not used in this mode.

3. MON08 Connections (J1 Connector)

Pin # Pin Name Description

1 RST_OUT# Reset signal to target system: GND or open drain output

2 GND System ground.
3 RST_IN# Reset signal from target system: GND to VDD input to control

4 RST# MCU reset; held at VDD out of reset. No other target-system

5 TGT_IRQ# Interrupt signal from target system: GND to VDD input to control

6 IRQ# MCU interrupt; held at VPP when the TGT_IRQ# signal is not

7 TGT_PTA0 Port A, bit 0; reserved MCU connection (unavailable to

8 PTA0 Port A, bit 0; MON08 single-wire communication.
9 TGT_PTA4 Port A, bit 4.
10 PTA4 Port A, bit 4; grounded during reset.
11 TGT_PTA1 Port A, bit 1.
12 PTA1 Port A, bit 1; held at VDD during reset.
13 None N.C.
14 None N.C.
15 None N.C.
16 None N.C.

reflecting the state of the MCU RST# and RST_IN# signals.

the state of the MCU RST# and RST_OUT# signals.

logic should be tied to this signal.

the state of the MCU IRQ# signal.

asserted.

application).

MON08 Signals

Page 4

VDD

VDD

LD9

PTB7R17

R18

470R

Q8

BSS138

10K

R1

470R

GREEN

LD1

POWER

C4

100nF

10uF

+ C3

RED

LD8

PTB6R15

R16

470R

Q7

BSS138

10K

RED

LD7

PTB5R13

R14

470R

Q6

BSS138

10K

RED

LD6

PTB4R11

R12

470R

Q5

BSS138

10K

J8

1 2

PTB7

PTB0

RED

LD5

PTB3R9

R10

470R

Q4

BSS138

10K

3 4

5 6

7 8

9 10

11 12

13 14

15 16

PTB6

PTB5

PTB4

PTB3

PTB2

PTB1

PTB0

PTB1

PTB2

PTB3

PTB4

PTB5

PTB6

PTB7
2

PTB015PTB114PTB211PTB310PTB47PTB56PTB63PTB7

LD4

R8

Q3

BSS138

LED ENABLE

16

RED

PTB2R7

470R

10K

VSS

VSS

RED

LD3

PTB1R5

R6

470R

Q2

BSS138

10K

RED

LD2

PTB0R3

R4

470R

Q1

BSS138

10K

VSS

P1

PTA1

1K

VDD

VSSVSS

VDD

U1

VDD

1

100nF

C6

10uF

+
C5

R19

10K

J5

VDD SOURCE+ C1

123

(UNREG.)

(REG.)

3

VOUT

GND

2

VSS

VIN

U2

78M05

1

C2

100nF

10uF

VSS

D1

PTB0

(PTA0)

TGT_PTA0

PTB1

GF1M

312

J3

(PTA1)

PTB3

PTB2

TGT_PTA1

UNREG. VDD

9-12V

TGT_IRQ# (PTA2/IRQ#) RED

1

2

J4

REG. VDD

MAX 5V

VSS

POWER SUPPLYSIGNAL PINS

PTA4/OSC2/AD2/KBI4

PTA3/RST#/KBI3

PTA2/IRQ#/KBI2

PTA1/AD1/TCH1/KBI1

PTA0/AD0/TCH0/KBI0

4

5

8

9

12

13

PTA0

PTA1

IRQ#

RST#

PTA4

VSS

J7

(USER)

PTA5

VDD

RST#

PTA5/OSC1/AD3/KBI5

C7

100nF

OSC SEL

123

(OSC.)

OSC

U3

16MHz

+-

C8

100nF

IRQ#

PTA1

PTA0

MC68HC908QY

VSS

VSS

VSS

VDD

R2

10K

RST_IN#

J10

1 2

TGT_PTA1

J9

1 2

TGT_PTA4

SW1

ENABLE

ENABLE

RESET

SW2

IDB-HC08QY Sheet: 1/1Date: 25/10/2002ID: SD00285

PTA4

VSS

INPUTS OUTPUTS

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J6

1 2

3 4

5 6

7 8

9 10

11 12

13 14

15 16

17 18

VDD

PTB7

PTB6

PTA5

TGT_PTA4

PTB5

PTB4

RST_IN# RST_OUT#

(N.C.)

(PTA4)

1J21 2

RST#

J1

RST_OUT#

3 4

5 6

RST_IN#

TGT_IRQ#

7 8

9 10

11 12

TGT_PTA1

TGT_PTA0

TGT_PTA4 PTA4

13 14

15 16

MON08 INTERFACE OSCILLATOR MCU