Freescale Semiconductor, Inc.
Using the ASB520
MC68HC908QT2
Based Infrared
Remote Control
Reference PC Board
Designer Reference
Manual
M68HC08
Microcontrollers
DRM045/D
Rev. 0
9/2003
MOTOROLA.COM/SEMICONDUCTORS
For More Information On This Product,
Download from Www.Somanuals.com. All Manuals Search And Download.
Freescale Semiconductor, Inc.
Using the ASB520 MC68HC908QT2 Based
Infrared Remote Control Reference
PC Board
Reference Design
By: Bill Lucas
Motorola Transportation and Standard Products Group
Austin, TX
To provide the most up-to-date information, the revision of our documents on
the World Wide Web will be the most current. Your printed copy may be an
earlier revision. To verify you have the latest information available, refer to:
The following revision history table summarizes changes contained in this
document. For your convenience, the page number designators have been
linked to the appropriate location.
Motorola and the Stylized M Logo are registered trademarks of Motorola, Inc.
DigitalDNA is a trademark of Motorola, Inc.
This product incorporates SuperFlash® technology licensed from SST.
© Motorola, Inc., 2003
Using the ASB520 MC68HC908QT2 Based Infrared Remote Control Reference PC Board
DRM045
3
MOTOROLA
For More Information On This Product,
Download from Www.Somanuals.com. All Manuals Search And Download.
Freescale Semiconductor, Inc.
Revision History
Revision History
Description
Revision
Level
Page
Number(s)
Date
September,
2003
N/A
Initial release
N/A
DRM045
Using the ASB520 MC68HC908QT2 Based Infrared Remote Control Reference PC Board
4
Revision History
MOTOROLA
For More Information On This Product,
Download from Www.Somanuals.com. All Manuals Search And Download.
Freescale Semiconductor, Inc.
Designer Reference Manual — DRM045
Table of Contents
Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Setup Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
LEDs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Schematic. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Parts List. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Grounding. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Switch Circuitry. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Using the ASB520 MC68HC908QT2 Based Infrared Remote Control Reference PC Board
DRM045
5
MOTOROLA
Table of Contents
For More Information On This Product,
Download from Www.Somanuals.com. All Manuals Search And Download.
Freescale Semiconductor, Inc.
Table of Contents
DRM045
6
Using the ASB520 MC68HC908QT2 Based Infrared Remote Control Reference PC Board
Table of Contents
MOTOROLA
For More Information On This Product,
Download from Www.Somanuals.com. All Manuals Search And Download.
Freescale Semiconductor, Inc.
Designer Reference Manual — DRM045
Section 1. Introduction and Setup
1.1 Introduction
Motorola’s ASB520, MC68HC908QT2 Infrared Remote Control Reference PC
Board and software are designed to demonstrate how a simple, limited
function, dedicated remote control system could be designed. The objective is
to keep the design simple so a user can pick portions of interest to his design
and turn them into an application specific system. This system is specifically
programmed to control an APEX model 1201 DVD player.
A few of the more noteworthy features of the reference PC board are listed as
follows:
•
•
•
•
•
•
•
8-pin MC68HC908QT2 microcontroller
Infrared LED and driver
Visible LED to show activity
Six user push buttons
MON08 programming interface for in-circuit FLASH programming
Battery holder for 3-AA cells
Microcontroller current monitor jumper block
1.2 About this Manual
Key items can be found in the following locations in this manual:
•
•
•
Pin assignments for MON08 connector J1 are shown in Table 3-1.
•
•
For those interested in the design aspects of the reference PC board’s
circuitry, a description is provided in Section 5. Design
•
System testing, hardware and software, are described in detail in
Using the ASB520 MC68HC908QT2 Based Infrared Remote Control Reference PC Board
DRM045
7
MOTOROLA
Introduction and Setup
For More Information On This Product,
Download from Www.Somanuals.com. All Manuals Search And Download.
Freescale Semiconductor, Inc.
Introduction and Setup
Figure 1-1. MC68HC908QT2 IR Reference PC Board Photograph
1.3 Setup Guide
Setup for the reference design PC board can be broken into two parts.
•
•
The first is normal user operation mode.
The second is MC68HC908QT2 FLASH programming configuration.
It is assumed for user operational mode, the MC68HC908QT1 has been
programmed with the remote control program. If not, refer to Section 6.
System Testing for FLASH programming information.
Figure 2-1. PC Board shows the locations of the various jumper blocks and
MON08 connector.
DRM045
8
Using the ASB520 MC68HC908QT2 Based Infrared Remote Control Reference PC Board
Introduction and Setup
MOTOROLA
For More Information On This Product,
Download from Www.Somanuals.com. All Manuals Search And Download.
Freescale Semiconductor, Inc.
Introduction and Setup
Setup Guide
For user operation mode, shorting jumpers need to be installed to jumper
blocks JP1–JP4. Shorting jumper block JP1 is not necessary if the small PC
board trace under jumper block JP1, on the bottom side of the PC board, has
not been cut for microcontroller current monitoring.
Installation of 3-AA Alkaline batteries into the battery holder mounted on the
bottom of the PC board is also required for setup. Note battery polarity on the
battery holder. The PC board is now ready for use as an infrared remote
control.
Using the ASB520 MC68HC908QT2 Based Infrared Remote Control Reference PC Board
DRM045
9
MOTOROLA
Introduction and Setup
For More Information On This Product,
Download from Www.Somanuals.com. All Manuals Search And Download.
Freescale Semiconductor, Inc.
Introduction and Setup
DRM045
10
Using the ASB520 MC68HC908QT2 Based Infrared Remote Control Reference PC Board
Introduction and Setup
MOTOROLA
For More Information On This Product,
Download from Www.Somanuals.com. All Manuals Search And Download.
Freescale Semiconductor, Inc.
Designer Reference Manual — DRM045
Section 2. Operational Description
2.1 Introduction
2.2 Push Buttons
2.3 LEDs
The following subsections describe the operation of the ASB520,
MC68HC908QT2 infrared remote control reference design system. LEDs,
switches, jumper blocks and FLASH programmer headers, and current monitor
items.
There are six push button switches resident on the lower portion of the
reference PC board. They are labeled as switches SW1–SW6 on the PC board
schematic. Each button has a dedicated function. The switches are labeled as
POWER, PAUSE, PLAY, REVERSE, STOP, and FORWARD. These labels
describe the button’s operation function related to control of a DVD player.
There are two LEDs located in the upper right hand corner of the PC board. The
LED labeled D1 is an infrared LED and the one labeled D2 is a visible red LED
and is used to show system activity.
2.3.1 Red Activity Indicator LED
D2 is a visible red LED and is used to show IR LED activity. It blinks as long
any push button is depressed
2.3.2 Infrared LED
D1 is an infrared LED. It is modulated to control the DVD.
Using the ASB520 MC68HC908QT2 Based Infrared Remote Control Reference PC Board
DRM045
11
MOTOROLA
Operational Description
For More Information On This Product,
Download from Www.Somanuals.com. All Manuals Search And Download.
Freescale Semiconductor, Inc.
Operational Description
JP1
JP2
JP3
JP4
J1
Figure 2-1. PC Board
DRM045
12
Using the ASB520 MC68HC908QT2 Based Infrared Remote Control Reference PC Board
Operational Description
MOTOROLA
For More Information On This Product,
Download from Www.Somanuals.com. All Manuals Search And Download.
Freescale Semiconductor, Inc.
Operational Description
Header and Jumpers Blocks
2.4 Header and Jumpers Blocks
There is one 16-pin header (2 x 8-pin), J1, and four 2-pin jumper blocks,
The header and jumper functions are described as follows.
J1:
Jumper block J1 is used to program the MC68HC908QT2, located in
the center of the PC board. The connections to this board follow the
standard MON08 connector scheme. It is also used to put the ASB520
system into test mode. In a production environment, J1 could be
replaced by a “bed of nails” test fixture to reduce PC board parts costs.
JP1: Jumper block JP1 is on the PC board measure the current consumed
by the microcontroller. Its primary purpose is to measure stop current of
the microcontroller. A small trace on the bottom of the PC board must
be cut to use this feature. When using this feature to measure stop
current you should remove shorting jumper JP2. Removing the shunt
from JP2 removes the system’s 470 µF bulk capacitor. Removing that
capacitor will improve accuracy of the current measurement, as large
capacitors have leakage current associated with them. Select the
lowest voltage rating bulk capacitor for your circuit as possible because
lower voltage rated ones tend to have less leakage than higher voltage
ones for a given capacitance value.
JP2: Jumper block JP2 disconnects the bulk capacitor during FLASH
programming and optionally during stop current monitoring. The value
of the capacitor is large enough to cause power switching issues when
using the Cyclone programmer. During the programming procedure,
the Cyclone programmer cycles power to the target PC board. Large
value bulk capacitors greater than approximately 100 µF present
excessive currents to the Cyclone programmer and interfere with the
POR circuit of the target’s microcontroller as voltage on larger
capacitance devices do not discharge fast enough during voltage
cycling.
The purpose for the bulk capacitor is two fold: First is tends to help lower
the effects of the battery’s internal resistance during periods of high
current demands while the IR LED is being modulated. This is a
particular benefit toward the battery’s end of life period, when its internal
resistance is increasing. Second, if a system uses RAM to store user
information, the bulk capacitor will retain voltage to the microcontroller
during battery changes.
JP3: Jumper block JP3 disconnects pullup resistor, R9, during FLASH
programming.
JP4: Jumper block JP4 disconnects LED drive circuitry during FLASH
programming.
Using the ASB520 MC68HC908QT2 Based Infrared Remote Control Reference PC Board
DRM045
13
MOTOROLA
Operational Description
For More Information On This Product,
Download from Www.Somanuals.com. All Manuals Search And Download.
Freescale Semiconductor, Inc.
Operational Description
2.5 Microcontroller Current Monitor Jumper Block
Jumper block JP1 is intended as a connection on the PC board to measure the
stop current of the MC68HC908QT2. To use the feature, you must cut the small
PC board trace located on the bottom side of the PC board between the two
pins of the jumper block. After cutting the trace, and when not using an amp
meter to measure system current a shunt must be installed on JP1.
DRM045
14
Using the ASB520 MC68HC908QT2 Based Infrared Remote Control Reference PC Board
Operational Description
MOTOROLA
For More Information On This Product,
Download from Www.Somanuals.com. All Manuals Search And Download.
Freescale Semiconductor, Inc.
Designer Reference Manual — DRM045
Section 3. Pin Description
3.1 Introduction
There is one connector resident on the control board, labeled J1. It is the
MON08 connector. The following subsection describes signals on connector
J1.
3.2 16-Pin Connector J1
Signals to and from the MON08 connector are grouped together on 16-pin
(2 x 8-pin) ribbon cable connector J1. Pin assignments for connector J1 are
“bed of nails” test fixture to reduce PC board parts costs.
Table 3-1. MON08 Pin Assignments
Pin Number
Function
1, 3, 4, 5, 7, 9, 11,14, 16
No connect
GND
2
6
V
(PTA2)
TST
8
COM (PTA0)
MOD1 (PTA4)
MOD0 (PTA1)
OSC1 (PTA5)
10
12
13
15
V
DD
Using the ASB520 MC68HC908QT2 Based Infrared Remote Control Reference PC Board
DRM045
15
MOTOROLA
Pin Description
For More Information On This Product,
Download from Www.Somanuals.com. All Manuals Search And Download.
Freescale Semiconductor, Inc.
Pin Description
DRM045
16
Using the ASB520 MC68HC908QT2 Based Infrared Remote Control Reference PC Board
Pin Description
MOTOROLA
For More Information On This Product,
Download from Www.Somanuals.com. All Manuals Search And Download.
Freescale Semiconductor, Inc.
Designer Reference Manual — DRM045
Section 4. Schematic and Parts List
4.1 Introduction
4.2 Schematic
Schematic and parts list detail are documented in this section.
otherwise specified, capacitor values are in microfarads, resistor values are in
ohms. All resistors are specified as 1/4-watt ± 5%, and interrupted lines coded
with the same letters are electrically connected.
Using the ASB520 MC68HC908QT2 Based Infrared Remote Control Reference PC Board
DRM045
17
MOTOROLA
Schematic and Parts List
For More Information On This Product,
Download from Www.Somanuals.com. All Manuals Search And Download.
Freescale Semiconductor, Inc.
Schematic and Parts List
Parts List
4.3 Parts List
The following parts list describes the parts content for the IR reference PC
board.
Table 4-1. Reference PC Board Parts List
Designators
Qty.
1
Description
3-AA Battery Holder
Manufacturer
Digi-Key
Part Number
2464K-ND
BAT1
C1
1
0.1 µF Capacitor
Infrared LED
Digi-Key
P5508-ND
C2
1
Digi-Key
399-2127-ND
160-1061-ND
160-1061-ND
D1
1
Digi-Key
D2
1
Red LED
Digi-Key
(1)
(1)
(1)
J1
1
Digi-Key
2 x 8 Pin Header
S2211-36-ND
(1)
JP1–JP4
Q1
4
1
1
3
Digi-Key
Digi-Key
Digi-Key
Digi-Key
2 Pin Header
S1211-36-ND
2N3904-ND
2N3906-ND
47QBK-ND
2N3904
2N3906
Q2
(2)
R1, R8, R5
47K Ohm Resistor
(2)
R3
1
2
1
1
2
1
1
1
1
Digi-Key
Digi-Key
Digi-Key
Digi-Key
Digi-Key
Digi-Key
Digi-Key
Digi-Key
Digi-Key
47QBK-ND
47 Ohm Resistor
(2)
R4, R15
R13
R2
1.0KQBK-ND
220QBK-ND
330QBK-ND
470QBK-ND
10QBK-ND
1K Ohm Resistor
(2)
220 Ohm Resistor
(2)
330 Ohm Resistor
(2)
R6, R14
R7
470 Ohm Resistor
(2)
10 Ohm Resistor
(2)
R9
3.3KQBK-ND
4.7KQBK-ND
1.0MQBK-ND
2.2KQBK-ND
CKN9009-ND
3.3K Ohm Resistor
(2)
R11
R10
4.7K Ohm Resistor
(2)
1 Meg Ohm Resistor
(2)
R12
1
6
1
1
1
1
1
1
1
4
3
Digi-Key
Digi-Key
Digi-Key
Digi-Key
Digi-Key
Any
2.2K Ohm Resistor
SW1–SW6
U1
Momentary Push Button Switch
Nitron 8-pin DIP with A/D and 1.5K FLASH
16.00 MHz Resonator
MC68HC908QT1CP
X908-ND
A400-ND
Any
X1
No Designator (optional)
No Designator
No Designator
No Designator
No Designator
No Designator
No Designator
8-pin socket for U1
2-56 x 3/8” nylon screw
2-56 nylon nut
Any
Any
(3)
Digi-Key
DS Electronics
Digi-Key
Any
3M4008-ND
ASB520
S9000-ND
Any
Tape, double-sided foam 1/8” x 1”
ASB520 Bare PCB
Shunts for JP1–JP4
AA Alkaline Battery
1. Shipped in strips of 36 x 1 or 36 x 2. Cut to length.
2. All resistors are 1/4 W with a tolerance of 5% unless otherwise noted.
3. Cut to size.
Using the ASB520 MC68HC908QT2 Based Infrared Remote Control Reference PC Board
DRM045
19
MOTOROLA
Schematic and Parts List
For More Information On This Product,
Download from Www.Somanuals.com. All Manuals Search And Download.
Freescale Semiconductor, Inc.
Schematic and Parts List
DRM045
20
Using the ASB520 MC68HC908QT2 Based Infrared Remote Control Reference PC Board
Schematic and Parts List
MOTOROLA
For More Information On This Product,
Download from Www.Somanuals.com. All Manuals Search And Download.
Freescale Semiconductor, Inc.
Designer Reference Manual — DRM045
Section 5. Design Considerations
5.1 Introduction
Microcontroller systems, in general, have a number of important design
considerations related to PC board layout and grounding considerations.
of the reference board’s major circuits are included in 5.3 Infrared and Visible
5.2 Grounding
PC board layout is an important design consideration. In particular, ground
planes and how grounds are tied together influence noise immunity. To
maximize oscillator noise immunity, it is a good practice have ground plane
under the resonator, X1. One good grounding practice is to carry all of the
ground connections, in a star configuration, to a single point which could be the
power supply’s bulk capacitor or in this case, the battery ground terminal.
5.3 Infrared and Visible LED Drive Circuit
Figure 5-1 is the driver schematic, used to drive both LEDs on the PC board.
Because the microcontroller will not source or sink enough current to drive the
two LEDs, a discrete driver is necessary. This circuit uses two transistors. The
first transistor is a small signal NPN, followed by a small signal PNP transistor.
Vbat
R1
47K
R2
330
Q2
2N3906
JP4
R4
1K
1
2
Q1
2N3904
To PTA0
1
2
IR_DISC
R6
470
R3
47
R5
47K
D2
RED
D1
IR_LED
Figure 5-1. Infrared LED Drive Circuit
Using the ASB520 MC68HC908QT2 Based Infrared Remote Control Reference PC Board
DRM045
21
MOTOROLA
Design Considerations
For More Information On This Product,
Download from Www.Somanuals.com. All Manuals Search And Download.
Freescale Semiconductor, Inc.
Design Considerations
A logic 1 from port A, bit 0 will turn the NPN transistor on, driving its collector
low. The low level applied to the base of the PNP transistor, Q2, will drive its
emitter to collector into conduction, illuminating the two LEDs. Resistor R5 is in
place to guarantee that Q1 is biased off during initial power on and before the
microcontroller’s program has configured port A, bit 1 to behave as a digital
output.
5.4 Switch Circuitry
A simple circuit is used to give the ability of reading several switches into an
only one I/O pin for the six switches. Using a switch matrix and the keyboard
interrupt pins is an alternative approach, but in this case would require a
microcontroller with more I/O pins.
Vdd
JP3
SW_DISC
R9
3.3K
POWER
PTA1_ATD1
SW1
R11
4.7K
PLAY
SW2
R12
2.2k
FWD
SW3
R15
1k
REV
SW6
R14
470
PAUSE
SW5
R13
220
STOP
SW4
Figure 5-2. Switch Circuitry
DRM045
22
Using the ASB520 MC68HC908QT2 Based Infrared Remote Control Reference PC Board
Design Considerations
MOTOROLA
For More Information On This Product,
Download from Www.Somanuals.com. All Manuals Search And Download.
Freescale Semiconductor, Inc.
Design Considerations
Switch Circuitry
on which switch is depressed. Because the voltage from the switches is
ratiometric to VDD, power supply variation will have no effect on A/D readings.
Table 5-1. Switch Input A/D Values
Switch
No switch
Power
Ideal Value
255
Minus 6%
239.7
160.3
120
Plus 6%
255
170.5
127.7
79.9
180.7
153.3
84.7
43.3
15.6
0
Play
Forward
Reverse
Pause
75.1
40.8
38.4
14.8
13.9
Stop
0
0
in the design are ±5%. The software uses the minimum values from the table
to decode the switches.
Using the ASB520 MC68HC908QT2 Based Infrared Remote Control Reference PC Board
DRM045
23
MOTOROLA
Design Considerations
For More Information On This Product,
Download from Www.Somanuals.com. All Manuals Search And Download.
Freescale Semiconductor, Inc.
Design Considerations
DRM045
24
Using the ASB520 MC68HC908QT2 Based Infrared Remote Control Reference PC Board
Design Considerations
MOTOROLA
For More Information On This Product,
Download from Www.Somanuals.com. All Manuals Search And Download.
Freescale Semiconductor, Inc.
Designer Reference Manual — DRM045
Section 6. System Testing
6.1 Introduction
This section will first explain how to program the control program into FLASH
memory of the MC68HC908QT2 microcontroller. It will then, in detail, provide
functional testing of both hardware and user software for the ASB520 infrared
remote control reference design.
6.2 Hardware/Software Testing Summary
Because the PC board has minimal user interface, hardware testing will be
performed in stages.
•
First the control program will be programmed into the
MC68HC908QT2’s FLASH memory.
•
•
The keyboard and red LED will be tested next.
Finally, the ASB520 PC board will be used to control a DVD.
6.3 FLASH Programming
The following steps are used to initially program the MC68HC908QT2:
1. If installed, remove the batteries from the battery holder located on the
bottom of the PC board
2. Remove jumpers JP1–JP4.
3. Connect the P&E Microcomputer Systems, Inc. MON08 Cyclone’s
ribbon cable from the programmer to J1, noting the location of pin 1 on
J1.
Follow the P&E Microcomputer Systems, Inc. instructions to program the
MC68HC908QT2, with the remote control program file. The file name to
program into the device is ASB520.S19.
After FLASH programming is complete, disconnect the Cyclone’s ribbon cable
connected to J1 of the ASB520 PC board.
In a production environment, the Cyclone Programmer can be setup so that a
single press of a button will initiate an automatic programming operation. The
Application Program would be pre-loaded into nonvolatile memory in the
Cyclone and no PC would need to be present during production programming.
Using the ASB520 MC68HC908QT2 Based Infrared Remote Control Reference PC Board
DRM045
25
MOTOROLA
System Testing
For More Information On This Product,
Download from Www.Somanuals.com. All Manuals Search And Download.
Freescale Semiconductor, Inc.
System Testing
6.4 LED and Push Button Test Code
Test code is embedded in the ASB520 control program. This test code will test
the switches, LED drive circuitry and visible LED, D2. The infrared led, D1, is
illuminated, but you can’t see it. To run the test program, follow the next 12
steps:
1. Connect a jumper lead between pins 2 and 6 on connector J1.
2. Install shorting jumpers on jumper blocks JP1–JP4
3. Install 3-AA Alkaline batteries into the battery holder mounted on the
bottom of the PC board. Note battery polarity on the battery holder.
When the last battery is installed, you will see the red LED, D2, flash five
times.
4. Depress the POWER switch, SW1. The red LED will flash once, delay
for approximately 2 seconds, flash again and continue that sequence
until the button is released. You will note the POWER button is SW1;
thus one blink. (This is the sequence for the remainder of the switches.)
5. Depress the PAUSE switch, SW2. The red LED will flash twice, delay for
approximately 2 seconds, flash twice again and continue that sequence
until the button is released.
6. Depress the PLAY switch, SW3. The red LED will flash three times,
delay for approximately 2 seconds, flash three times again and continue
that sequence until the button is released.
7. Depress the REVERSE switch, SW4. The red LED will flash four times,
delay for approximately 2 seconds, flash four times again and continue
that sequence until the button is released.
8. Depress the STOP switch, SW5. The red LED will flash five times, delay
for approximately 2 seconds, flash five times again and continue that
sequence until the button is released.
9. Depress the FORWARD switch, SW6. The red LED will flash six times,
delay for approximately 2 seconds, flash six times again and continue
that sequence until the button is released.
10. Remove one battery. It doesn’t matter which one.
11. Remove the jumper lead from connector J1.
12. Replace the battery. (The system is now in user mode.)
All hardware except for the infrared diode, D1, has been tested at this point.
DRM045
26
Using the ASB520 MC68HC908QT2 Based Infrared Remote Control Reference PC Board
System Testing
MOTOROLA
For More Information On This Product,
Download from Www.Somanuals.com. All Manuals Search And Download.
Freescale Semiconductor, Inc.
System Testing
DVD Player Control Test
6.5 DVD Player Control Test
To test the infrared diode and the rest of the system in user mode, install a
music CD in the APEX model 1201 DVD player. Music CDs appear to respond
faster than video CD’s in this CD player.
To test the software, infrared diode and the rest of the ASM520 PC board,
follow these steps:
1. Configure the television and DVD player, following the instructions
provided with the DVD player.
2. On the DVD player, depress the power switch on the left side of the DVD
player to turn it on.
3. On the DVD player, depress the OPEN/CLOSE switch located to the
right of the DVD drawer to open the DVD drawer.
4. Install a music CD in the APEX model 1201 DVD player.
5. Depress the OPEN/CLOSE switch on the DVD player to close the DVD
drawer.
6. Wait for the yellow LED, located on the lower right hand end of the DVD
player, labeled MP3/CD JPEG to illuminate. It can take up to 10 seconds
on this DVD player.
7. Point the ASB520 board with LED D1 toward the DVD player and
depress the POWER switch on the ASB520 PC board to turn the DVD
player off.
8. Verify the yellow MP3/CD JPEG LED turns off.
9. Point the ASB520 board with LED D1 toward the DVD player and again,
press the POWER switch on the ASB520 PC board. In approximately 10
seconds, the MP3/CD JPEG LED will once again illuminate. This delay
is a function of the DVD player and not the controller.
10. Point the ASB520 board with LED D1 toward the DVD player and
depress the PLAY switch on the ASB520 PC board. The first song on
the CD will play.
11. Point the ASB520 board with LED D1 toward the DVD player and
depress the PAUSE switch on the ASB520 PC board. The music will
stop playing.
12. Point the ASB520 board with LED D1 toward the DVD player and
depress the PLAY switch on the ASB520 PC board. The music will
resume at the point it was paused.
13. Point the ASB520 board with LED D1 toward the DVD player and
depress the STOP switch on the ASB520 PC board. The music will stop
playing.
14. Point the ASB520 board with LED D1 toward the DVD player and
depress the PLAY switch on the ASB520 PC board. The music will
restart at the beginning of the song.
Using the ASB520 MC68HC908QT2 Based Infrared Remote Control Reference PC Board
DRM045
27
MOTOROLA
System Testing
For More Information On This Product,
Download from Www.Somanuals.com. All Manuals Search And Download.
Freescale Semiconductor, Inc.
System Testing
15. Point the ASB520 board with LED D1 toward the DVD player and
depress the REVERSE switch on the ASB520 PC board. The music will
back-up, at a high rate, until it reaches the beginning of the song, at
which time it will restart the song.
16. Point the ASB520 board with LED D1 toward the DVD player and
depress the FORWARD switch on the ASB520 PC board. The music will
play very fast.
17. Point the ASB520 board with LED D1 toward the DVD player and
depress the PLAY switch on the ASB520 PC board. The music will
resume at normal rate.
18. Power to the DVD player may now be turned off by depress the power
switch on the left side of the DVD player.
This completes the hardware and software testing of the ASB520 infrared
remote controller system.
The controller is ready for use with the APEX model 1201 DVD player.
DRM045
28
Using the ASB520 MC68HC908QT2 Based Infrared Remote Control Reference PC Board
System Testing
MOTOROLA
For More Information On This Product,
Download from Www.Somanuals.com. All Manuals Search And Download.
Freescale Semiconductor, Inc.
For More Information On This Product,
Download from Www.Somanuals.com. All Manuals Search And Download.
Freescale Semiconductor, Inc.
HOW TO REACH US:
USA/EUROPE/LOCATIONS NOT LISTED:
Motorola Literature Distribution
P.O. Box 5405
Denver, Colorado 80217
1-800-521-6274 or 480-768-2130
JAPAN:
Motorola Japan Ltd.
SPS, Technical Information Center
3-20-1, Minami-Azabu, Minato-ku
Tokyo 106-8573, Japan
81-3-3440-3569
ASIA/PACIFIC:
Motorola Semiconductors H.K. Ltd.
Silicon Harbour Centre
2 Dai King Street
Tai Po Industrial Estate
Tai Po, N.T., Hong Kong
852-26668334
HOME PAGE:
Information in this document is provided solely to enable system and software implementers to use Motorola products.
There are no express or implied copyright licenses granted hereunder to design or fabricate any integrated circuits or
integrated circuits based on the information in this document.
Motorola reserves the right to make changes without further notice to any products herein. Motorola makes no warranty,
representation or guarantee regarding the suitability of its products for any particular purpose, nor does Motorola assume
any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability,
including without limitation consequential or incidental damages. “Typical” parameters that may be provided in Motorola
data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All
operating parameters, including “Typicals”, must be validated for each customer application by customer’s technical experts.
Motorola does not convey any license under its patent rights nor the rights of others. Motorola products are not designed,
intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications
intended to support or sustain life, or for any other application in which the failure of the Motorola product could create a
situation where personal injury or death may occur. Should Buyer purchase or use Motorola products for any such
unintended or unauthorized application, Buyer shall indemnify and hold Motorola and its officers, employees, subsidiaries,
affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising
out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even
if such claim alleges that Motorola was negligent regarding the design or manufacture of the part.
MOTOROLA and the Stylized M Logo are registered in the US Patent and Trademark Office. All other product or service
names are the property of their respective owners. Motorola, Inc. is an Equal Opportunity/Affirmative Action Employer.
© Motorola Inc. 2003
DRM045/D
Rev. 0
9/2003
For More Information On This Product,
Download from Www.Somanuals.com. All Manuals Search And Download.
|