Setup Manual
QB-MINI2-RM
MINICUBE2 Wireless Option
Preface
1
Thank you for purchasing MINICUBE2 Wireless Option (QB-MINI2-RM).
This product can be used with the programmable on-chip debug emulator
MINICUBE2 to make the connection between your development system
and MINICUBE2 wireless.
This document describes how to prepare to use and start this product and
also describes wireless communication.
Documents for this product are also provided on the wireless option
information website.
<3> Software download
NEC Electronics software for QB-MINI2-RM is available on the following
website (hereinafter referred to as ODS).
<1> Checking the package contents
Check the package contents in accordance with the packing list supplied
with QB-MINI2-RM.
If there are any missing or damaged items, consult an NEC Electronics
sales representative or distributor.
<2> Product information and documents
For information on QB-MINI2-RM, access the following NEC Electronics
website (hereinafter referred to as Wireless Option information site).
http://www.necel.com/micro/en/development/asia/minicube2/minicube2.html
Click "Wireless Option" on the above website.
Software Installation
2
First, install the software necessary to use this product.
<1> Software for the standard use of MINICUBE2
Install the software tool for using MINICUBE2 in a standard configuration.
For example, to debug a V850 microcontroller, the debugger ID850QB,
device files, and the MINICUBE2 USB driver must be installed.
Installing the software used in the standard configuration
http://www.necel.com/micro/en/development/asia/index.html
Click "Version-up Service" on the above website, and then, on the next
website, click "MINICUBE2_Software".
We recommend using the latest software. If you want to be notified about
software updates, subscribe to the Version-up Service according to the
Version-up Service guide.
To use software made by a partner company, see the documents issued
by that company.
<2> Runtime libraries provided by Microsoft
For Windows 2000 and XP, install the runtime libraries provided by
Microsoft.
-Microsoft .NET Framework 2.0 Service Pack 1
-Microsoft Visual C++ 2005 Redistributable
The above libraries can be downloaded from a website that is linked
to the wireless option information website.
Caution If the name of a Windows temporary file includes multiple-
byte characters (such as when a Japanese login name is
used), an error might occur during installation.
<3> MINICUBE2 RF utility
The MINICUBE2 RF utility (the RF utility) is used for monitoring the used
radio frequency, the unit ID specified for the connection destination, and
the wireless connection status.
Download the RF utility from among the MINICUBE2 software products
available with the Version-up Service, and then decompress it.
"mqb2rftul.exe" is the RF utility.
Setting up Wireless Unit and Checking Unit ID
3
This product includes two wireless units (QB-MINI2-RM). One unit is
connected to MINICUBE2 and the other is connected to the target
system.
Switch the former unit to "H" and the latter unit to "T". The wireless
units will not be damaged by connecting them with a different setting,
but note that they might malfunction.
Set the unit to
connect to
MINICUBE2 to
"H".
Document No. U19851EJ1V0IF00 (1st edition)
Date Published June 2009 NS
Printed in Japan
TH TH
The information in this document is subject to change without notice. Before using this document, please
confirm that this is the latest version.
Not all products and/or types are available in every country. Please check with an NEC Electronics
sales representative for availability and additional information.
Set the unit to
connect to the
target system to
"T".
The wireless units have four-digit unit IDs that are unique to each
product. Memorize the unit IDs of the two wireless units because they
will be used for identification when connecting them wirelessly.
QB-MINI2-RM
Unit ID 000AH
SER NO. XXXXX
© NEC Electronics Corporation 2009
Unit ID
Connecting and Starting Hardware
4
Connect the hardware, and then turn on the system.
Caution Before connecting the hardware, confirm the following:
-MINICUBE2 is not connected via USB.
-The target system is turned off.
<1> Flipping the MINICUBE2 switches
Flip the MINICUBE2 switches to the following positions:
Flip the MINICUBE2
switches to positions
"M2" and "3".
<2> Connecting a wireless unit to MINICUBE2
Connect the wireless unit that was set to "H" to MINICUBE2. Note the
direction when connecting the unit.
M1 M2
3 T5
<3> Connecting a wireless unit to the target system
Connect the wireless unit that was set to "T" to the target system. Note
the position of pin 1, because the wireless unit is not protected against
false connection. (The pin layout is shown in the figure to the right
below.)
Pin 2
Pin 15
Pin 16
Pin 1
Target system
Wireless unit
<4> Starting the system
(1) Connect MINICUBE2 to the host by using a USB cable. The LED on
the wireless unit turns on and off.
MINICUBE2
Establishing Wireless Communication and Checking Firmware
5
Next, perform wireless communication, use the wireless units, and then
check the firmware version and the radio wave status.
<1> Starting the RF utility
Run the mqb2rfutl.exe file that was downloaded and decompressed in
step 2. The following window is displayed.
<2> Specifying the basic settings for wireless communication (the
frequency channel and target unit ID)
Click [Option] on the menu bar and then [Configuration] to display the
configuration dialog box. Specify the frequency channel and target unit
ID, and then click the [OK] or [Apply] button.
Select the unit ID of the
wireless unit connected to
the target system.
Wireless unit
(2) Turn on the target system.
The LED on the wireless unit turns on and off as in (1) above.
<3> Starting and checking wireless communication
Wireless communication starts when the basic settings have been
specified. After the settings are specified, they are held in the host
registry and automatically specified every time the host starts.
If wireless communication is successful, the radio wave status and
measured temperature are graphed in the main window.
The radio wave status
and temperature are
graphed.
If wireless communication was not successful, "Fail" is displayed on the
status bar. In this case, change the frequency channel and check the
target unit ID in the configuration dialog box.
<4> Checking the firmware version
Click [Help] on the menu bar and then [Version].
The firmware versions of the RF utility and wireless units are displayed.
On the Version-up Service website, check whether these are the latest
versions.
Text on status bar
• If communication is successful
• If communication is abnormal
Select any channel.
This concludes setting up wireless communication.
Starting Debugging and Programming
6
After wireless communication ends, create a program in the same way as for a standard configuration in which the target cable is used. For example,
when starting debugging, start the debugger, download the program, and then perform debugging.
The radio wave status during wireless communication changes depending on external factors such as other used wireless devices. Such changes
can be determined using the RF utility. Be sure to use this product in an environment where radio waves are relatively stable.
We recommend reading the additional information on the following pages.
End Procedure
7
To end debugging or programming, turn off the system according to the following procedure. Next, disconnect the wireless units as required.
(1) Close the debugger or programming GUI.
(2) Close the RF utility.
(3) Turn off the target system.
(4) Disconnect MINICUBE2 from the host.
Information
Wireless Communication
√
Type of wireless communication used
• An ISM frequency band from 2,400 MHz to 2,483.5 MHz is used.
• Physical layers (PHY) and media access layers (MAC) formulated
according to IEEE802.15.4 are used.
• The 14 channels of communication frequencies shown below can be
selected. If the interference by peripheral wireless devices is strong,
communication can sometimes be improved by changing the channel.
2,400 MHz to 2,483.5 MHz
5 MHz
Channel 12
2,410 MHz
4MHz (at 250 kbps)
16MHz (at 1 Mbps)
Channel 25
2,475 MHz
Radio wave status and temperature indicated using RF utility
• RSSI (Receive Signal Strength Indicator)
This indicator indicates the signal intensity. If the indicator is greater
than 0, radio waves can be transmitted in the relevant environment.
This indicator does not take the effects of interfering waves into
consideration, but can be used as a reference to determine the
intensity of the signal received by the wireless unit connected to the
target system. For example, if the target system is running, this
indicator decreases the longer the communication distance becomes.
By using this indicator, you can estimate how far a signal can be
transmitted in the current environment.
• LQI (Link Quality Indication)
This indicator is calculated based on the intensity of the signal and
noise interference. If this indicator is greater than 0, communication
can be performed in the relevant environment. Unlike RSSI, the
effects of interfering waves are taken into consideration. Therefore,
this indicator is affected by the used frequency band and communication
speed.
For example, if the signal is affected by other wireless devices even
though RSSI is large, LQI decreases. This can sometimes be improved
by changing the used channel.
· Success
This indicator indicates whether the wireless unit connected to the
target system is correctly receiving the data transmitted from the
wireless unit connected to MINICUBE2. Because data that is not
correctly received is ignored, no malfunction occurs, but the operating
speed of the debugger and programming tool is affected.
• This product uses a spread spectrum method called direct sequence
spread spectrum (DSSS) that is highly resistant to disturbing and
interfering waves.
This method transmits 4-bit data by multiplying the data by pseudonoise
codes and then restores the 4-bit data on the receiving side as actual
data. Due to the used code string, the signal frequency is spread and
less affected by interfering waves in specific frequency bands.
Bit Code
0000 11011001110000110101001000101110
1000 11101101100111000011010100100010
0100 00101110110110011100001101010010
: :
1111 11001001011000000111011110111000
• Temperature
The wireless units have a temperature sensor that determines the
internal temperature of the wireless unit connected to the target
system. This indicator indicates the internal temperature of the unit,
not the ambient temperature. The guaranteed operating temperature
for the wireless units is –15 °C to +70 °C. The red line shown on the
graph in the RF utility shows this temperature range. Use this product
in the guaranteed operating temperature range.
Guaranteed operating
temperature range
To change the interval at which to update the graphs, change the right
setting in the configuration dialog box.
Can be specified in the range
from 100 ms to 1,000 ms.
Using RF Utility More Flexibly
√
Performing faster wireless communication Customizing LED color for wireless units
The data transfer speed according to the default RF utility settings is 250
kbps. The data transfer speed can be changed to 1 Mbps by changing
the setting below in the RF utility configuration dialog box. However,
because LQI tends to decrease if the speed increases, make sure the
radio wave status is relatively stable before changing the speed to 1
Mbps.
Even if 1 Mbps is specified, the operating speed of the debugger does
not simply quadruple. The data transfer speed for wireless communication
quadruples, but the speed of processing the firmware in the wireless
units and USB communication for MINICUBE2 does not change.
When using the wireless units for the first time, the LEDs on the wireless
units turn on in blue. The color of the LEDs can be changed or the
LEDs can be turned off to reduce current consumption.
The LED color for the wireless unit connected to MINICUBE2 can be
changed by specifying a setting in the RF utility configuration dialog box.
By selecting [Synchronize], the same color is specified for the LED on
the wireless unit connected to the target system.
Information
Safety Information
√
Encrypting wireless communication data
Because radio waves can be transmitted up to about 100 m and the
used type of communication conforms to the IEEE 802.15.4 communication
standard, programs under development might be stolen.
To prevent this, the data to transmit using wireless communication can
be encrypted. AES-CTR can be used as the encryption format from the
advanced encryption standards specified in the United States. If this
format is used, communicating units that do not have the same encryption
key cannot communicate.
An encryption key consists of 128 bits (16 bytes). If encryption is used,
the communication speed drops. Therefore, encryption is not used in
the default RF utility settings.
Data is encrypted as shown to the right.
Caution Even if sophisticated encoding is performed using AES-
CTR, the data is never completely secure. To protect
programs during development, use the target cable instead
of this product.
When wireless communication is interrupted
Wireless communication might be interrupted due to the effects of
other wireless devices or when the distance between the wireless
units changes. If this happens, the wireless units regularly issue a
connection request and attempt to re-establish wireless
communication. At this time, no graphs are displayed in the RF utility
as shown below and [Reconnecting] is displayed on the status bar.
If wireless communication
is interrupted, no graphs are displayed.
is displayed on the status
bar while reconnecting.
(1) Set the two wireless units to "H".
(2) Connect one wireless unit to MINICUBE2, and then start the RF
utility.
(3) Click [Option] on the menu bar and then [Security]. The security
dialog box is displayed.
(4) Select [Security Valid], and then enter an alphanumeric character
string of 16 characters or less for [Security Key]. This string is case
sensitive.
(5) Click [OK]. The security setting is applied to the connected wireless
unit.
(6) Also, specify the security setting for the other wireless unit by
repeating steps (2) to (5).
However, if wireless communication is interrupted during debugging or
programming, the target system cannot be stopped until wireless
communication is restored. Therefore, the system might be corrupted
due to an infinite loop.
To prevent this, a setting that immediately resets the system when
wireless communication is interrupted can be specified. Select [Reset]
for the fail-safe setting in the RF utility configuration dialog box as
shown below.
Select this to continue
operation even if wireless
communication is interrupted.
Select this to reset the
system if wireless
communication is interrupted.
Troubleshooting Specifications
If a problem occurs, first check for abnormalities by using the MINICUBE2
self-diagnosis tool. Also, check whether MINICUBE2 and the wireless
units use the latest firmware according to the Version-up Service website.
If the problem cannot be resolved, see the FAQs on the NEC Electronics
website or see the following website and contact us by E-mail.
http://www.necel.com/contact/en/index.html
The information in this document is current as of June, 2009. The information is subject to change without notice. For actual design-in, refer to the
latest publications of NEC Electronics data sheets or data books, etc., for
the most up-to-date specifications of NEC Electronics products. Not all
products and/or types are available in every country. Please check with
an NEC Electronics sales representative for availability and additional information.
No part of this document may be copied or reproduced in any form or by
any means without the prior written consent of NEC Electronics. NEC
Electronics assumes no responsibility for any errors that may appear in
this document.
NEC Electronics does not assume any liability for infringement of patents,
copyrights or other intellectual property rights of third parties by or arising
from the use of NEC Electronics products listed in this document or any
other liability arising from the use of such products. No license, express,
implied or otherwise, is granted under any patents, copyrights or other intellectual property rights of NEC Electronics or others.
Descriptions of circuits, software and other related information in this document are provided for illustrative purposes in semiconductor product operation and application examples. The incorporation of these circuits, software
and information in the design of a customer's equipment shall be done under the full responsibility of the customer. NEC Electronics assumes no responsibility for any losses incurred by customers or third parties arising
from the use of these circuits, software and information.
(Note)
(1)"NEC Electronics" as used in this statement means NEC Electronics
Corporation and also includes its majority-owned subsidiaries.
(2)"NEC Electronics products" means any product developed or manufac-
tured by or for NEC Electronics (as defined above).
•
Hardware
Item
Size
Weight
Guaranteed
operating temperature
range
Storage temperature
range
Connectors
Special features
•
Wireless communication
Item
Frequency band
Connectable distance
Usable number of frequency
channels
Number of units identifiable
in the same space
Current consumption
(supplied from the target system)
Communication method
Data rate
Applicable laws
Specification
See the right figure.
About 10 g
ºC to +70 ºC
–15
–15
ºC to +70 ºC
16 pins, general-purpose
2.54 mm pitch
Temperature detection,
changing the LED color,
monitoring the radio wave
intensity
4.3 cm
3.0 cm
1.2 cm
Specification
2,400 MHz to 2,483.5 MHz
Maximum 100 m
(depending on the used environment)
14 (in 5 MHz intervals)
100
About 50 mA on average
Direct sequence spread spectrum (DSSS)
250 kbps, 1 Mbps
Radio Act (Japan), CE, FCC
CUSTOMER NOTIFICATION
Development Tool Solution Group
Multipurpose Microcomputer Systems Division
QB-MINI2-RF Precautions
This product complies with radio act (Japan), CE (Europe), Part 15 of FCC Rules (America).
QB-MINI2-RF is usable in Japan, Europe, and America. To use in other countries, please
confirm the law in the country. If you need anything, please contact an NEC Electronics sales
representative or distributor.
FCC Compliance Information
This equipment has been tested and found to comply with the limits
ZUD-CD-09-0171 (1/2)
August 4, 2009
Y oshinari Ando, Team Manager
Microcomputer Operations Unit
NEC Electronics Corporation
for a Class A digital device, pursuant to part 15 of the FCC Rules.
These limits are designed to provide reasonable protection against harmful interference when
the equipment is operated in a commercial environment. This equipment generates, uses, and
can radiate radio frequency energy and, if not installed and used in accordance with the
instruction manual, may cause harmful interference to radio communications. Operation of this
equipment in a residential area is likely to cause harmful interference in which case the user
will be required to correct the interference at his own expense.
This device complies with Part 15 of FCC Rules. Operation is subject to the following two
conditions: (1) the device may not cause interference, and (2) the device must accept any
interference, including interference that may cause undesired operation of this device.
WARNING TO USER：
－Change or modifications not expressly approved the manufacturer can void
the user's authority to operate this equipment.
－This equipment must not be co-located or operated in conjunction with any other antenna or
transmitter.
－This equipment complies with FCC radiation exposure limits set forth for uncontrolled
equipment and meets the FCC radio frequency (RF) Exposure Guidelines in Supplement C to
OET65. This equipment must be installed and operated with at least 20cm and more between
the radiator and person’s body (excluding extremities: hands, wrists, feet and ankles).
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