Renesas QB-MINI2-RF User manual

First, Install the software necessary to use this product.
<1> Software for MINICUBE2
Install the software tool (CubeSuite+ etc) for using MINICUBE2 in a
standard configuration. And the MINICUBE2 USB driver must be installed.
<2> Runtime libraries provided by Microsoft
For Windows 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.
１
Thank you for purchasing MINICUBE2 Wireless Option (QB-MINI2-RF).
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.
<1> Checking the package contents
Check the package contents in accordance with the packing list supplied
with QB-MINI2-RF.
If there are any missing or damaged items, contact an Renesas Electronics
sales representative or distributor.
<2> Product information and documents
For information on QB-MINI2-RF, access the following Renesas Electronics
website. (hereinafter referred to as Wireless Option informationsite).
Click “Wireless Option” on the above website.
Documents for this product are also provided on the wireless option
information website.
<3> Software download
Renesas Electronics software for QB-MINI2-RF is available on the
following website (hereinafter referred to as ODS).
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.
Preface
２
<3> MINICUBE2 RF utility
The MINICUBE2 RF utility (the RF utility) is used for monitoringthe 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.
Target OS : Same as MINICUBE2.
Software Installation
Document No.R20AN0143EJ0100
Date Published September 2011
ＱＢ－ＭＩＮＩ２－ＲＦ
ＭＩＮＩＣＵＢＥ２ Wireless Option
Setup Guide
３Setting up Wireless Unit and Checking Unit ID
This product includes two wireless units (QB-MINI2-RM). One unit is
connected to MINICUBE2 and the other is connected to the user 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.
The wireless units have four-digit unit IDs that are unique to each
product. Memorize the unit IDs of the two wireless units becausethey
will be used for identification when connecting them wirelessly.
T H
Set the unit to
connect to the
user system to “T”
T H
Set the unit to
connect to
MINICUBE2 to "H”
http://www.renesas.com/minicube2
QB-MINI2-RM
Unit ID 0001H
SER NO.XXXXXXXXXX
Unit ID
© 2011 Renesas Electronics Corporation. All rights reserved.
http://www2.renesas.com/micro/en/ods/
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 Renesas Electronics sales representative for availability and additional information.

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 user system is turned off.
<1> Flipping the MINICUBE2 switches
Flip the MINICUBE2 switches to the following positions:
<2> Connecting a wireless unit to MINICUBE2
Connect the wireless unit that was set to "H" to MINICUBE2. Notethe
direction when connecting the unit.
<3> Connecting a wireless unit to the user system
Connect the wireless unit that was set to "T" to the user 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.)
<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.
(2) Turn on the user system.
The LED on the wireless unit turns on and off as in (1) above.
Connecting and Starting Hardware
M1 M2
Flip the MINICUBE2
Switches to positions
“M2” and “3”3 T 5
Pin15
Pin16
５Establishing Wireless Communication and Checking Firmware
MINICUBE2
Wireless unit
user system
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.
<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.
If wireless communication was not successful, "Fail" is displayed on the
status bar. In this case, change the frequency channel and checkthe
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.
６Starting Debugging and Programming
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 followingpages.
７End Procedure
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. (3) Turn off the user system.
(2) Close the RF utility. (4) Disconnect MINICUBE2 from the host.
Pin 1
Pin 2
Select the unit ID of the
wireless unit connected to
the user system,
Select any channel
The radio wave status and
temperature are graphed.
Text on status bar
● If communication is successful
● If communication is not successful
Wireless unit

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.
●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
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
user system. For example, if the user 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 RSSl 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
user 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.
●Temperature
The wireless units have a temperature sensor that determines the
internal temperature of the wireless unit connected to the user
system. This indicator indicates the internal temperature of theunit,
not the ambient temperature. The guaranteed operating temperature
for the wireless units is -15 ℃ to +70 ℃. The red line shown on the
graph in the RF utility shows this temperature range. Use this product
in the guaranteed operating temperature range.
Using RF Utility More Flexibly
Performing faster wireless communication
The data transfer speed according to the default RF utility settings is
250kbps. 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 speedto
1 Mbps.
Even if 1 Mbps is specified, the operating speed of the debuggerdoes
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.
Customizing LED color for wireless units
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 user system.
To change the interval at which to update the graphs, change the below
setting in the configuration dialog box .
Guaranteed operating
Temperature range
Can be specified in the range
from 100 ms to 1,000 ms.
2400MHz ～2483.5MH ｚ
5MHz
2MHz(at 250kbps)
8MHz(at 1Mbps)
Channel
2410MHz
Channel25
2475MHz
2 )
)
12

Troubleshooting
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. Ifthis
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 usedin 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.
(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).
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.
However, if wireless communication is interrupted during debugging or
programming, the user 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.
Specification
Item Specification
Size See the right figure.
Weight About 10 g
Guaranteed
operating
temperature range
-15℃ to +70℃
Storage temperature
range -15℃
to +70℃
Connectors 16pins, general-purpose 2.54mm
pitch
Special features Temperature detection, changing
the LED color, monitoring the radio
wave intensity
4.3cm
3.0cm
1.2cm
Item Specification
Frequency band 2400MHz to 2483.5MHz
Connectable distance Maximum100m
(depending on the used environment)
Usable number of frequency channels 14 （In 5MHz intervals）
Number of units identifiable in the
same space 100
Current consumption (supplied from
the user system) About 50mA on average
Communication method Direct Sequence Spread Spectrum (DSSS)
Data rate 250kbps，1Mbps
Applicable laws Radio Act (Japan), CE(Europe), FCC(USA),
SRRC(China), KCC(Korea)
●Hardware
●Wireless communication
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 Renesas Electronics
website or see the following website and contact us by E-mail.
WEB site： http://www.renesas.com/contact/
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If wireless communication is interrupted,
no graphs are displayed.
Is displayed on the status
bar while reconnecting.
Select this to continue
operation even if wireless
communication is interrupted.
Select this to reset the
system if wireless
communication is interrupted.
Information