Renesas RX23W Series User manual

Quick Start Guide
R20QS0014EJ0100 Rev.1.00 Page
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RX23W Group
Target Board for RX23W Quick Start Guide
1. Introduction
1.1 About This Document
This document is a quick start guide for Target Board for RX23W (Hereafter referred to as this product)
equipped with Bluetooth®technology-compatible microcontroller RX23W.
This document describes:
•Startup procedure for this product
•Bluetooth communication with your smartphone
•Preparation for Bluetooth functionality evaluation
•Restoring factory software
1.2 Product Feature
Figure 1-1 illustrates the product feature of this product.
Target Board for RX23W (RTK5RX23W0C00000BJ)
Figure 1-1 Product Feature of Target Board
For details of this product, refer to RX23W Group Target Board for RX23W User’s Manual (R20UT4634).
MCU Header
Reset Switch
User Switch
PmodTM
Connector
Evaluation
MCU
ACT LED
Emulator
Reset Switch
USB Connector
(USB Serial)
External Power
Supply Header
Power Indicator
LED
Current
Consumption
Measurement
Header
USB Connector
(Emulator )
Arduino™UNO
Headers
Arduino™ UNO
Headers
MCU Header
RF Block
User LED

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1.3 Necessary Equipment
Since this product does not include a USB cable, prepare an A –micro B type USB cable.
To check the operation according to this document, prepare a smartphone with the OS shown in Table 1-1
and the smartphone app “GATTBrowser” made by Renesas Electronics.
Table 1-1 Supported OS
OS
Version
iOS
9.0 or later
Android
5.0.1 or later
GATTBrowser
iOS version:
https://itunes.apple.com/app/gattbrowser/id1163057977
Android version:
https://play.google.com/store/apps/details?id=com.renesas.ble.gattbrowser

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2. Startup Procedure
2.1 Power on
This product supports USB power supply. Confirm that ESW1-2 is OFF and connect USB connector CN5 to
the USB port of your PC (or other power supply) with a USB cable.
Figure 2-1 USB Connector CN5
When connecting to your PC for the first time, a driver installation message will appear on the PC screen as
shown in Figure 2-2. After that, the driver installation completion message is displayed on your PC.
Note: The display may vary depending on the PC OS.
Figure 2-2 USB Serial Driver Installation Message
2.2 Startup Confirmation
After turning on the power, confirm that LED0 blinks at 1-second intervals. If it does not blink, check that the
USB connector to be connected is correct or that ESW1-2 is OFF.
Figure 2-3 LED Blinking

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3. Operation Check
Software stored at the time of shipment to this product will start advertising to be connected after the power
is turned on. After connecting, it communicates with a remote device such as a smartphone to perform the
user switch operation and the user LED blink control. Figure 3-1 shows the operation of this product.
Figure 3-1 Operating Flow
3.1 Communication with Smartphone
To operate this product from a smartphone, follow the steps below.
Note: The smartphone display varies depending on the OS. In this document, the Android version
GATTBrowser screen is used for explanation.
Target Board for RX23W
Start advertising
Remote Device
Target Board action
BLE Event
Remote Device action Start scanning
Advertising Packet
Advertising Packet
Connection Complete
(BLE_GAP_EVENT_CONN_IND)
Request for connection
Search GATT service
Detect the "RBLE_DEV" device name .
If detecting the name, send a request for connection.
GATT service search complete
Enable Notification
Push SW1
Notification
Detect the followings as the result.
LED Switch Service
UUID : 58831926-5F05-4267-AB01-B4968E8EFCE0
Switch State Characteristic
UUID : 58837F57-5F05-4267-AB01-B4968E8EFCE0
LED Blink Rate Characteristic
UUID : 5883C32F-5F05-4267-AB01-B4968E8EFCE0
After enabling the notification
in the Switch State characteristic,
the notification packet is sent to the remote device
by pushing the SW1 on the board.
Write LED blink rate characteristic
LED Blink
By writing a number to the LED Blink Rate characteristic,
the LED blinks at the number x 100ms interval.
The LED turns off by writing zero to the characteristic.
Disconnection complete
(BLE_GAP_EVENT_DISCONN_IND)
Request for disconnection
Restart advertising

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1 Turn on this product.
2 Start GATTBrowser on your smartphone.
3 Tap the arrow icon of the device displayed as “RBLE-DEV” on GATTBrowser to connect.
Figure 3-2 Connect to This Product
3.1 If many devices are discovered and difficult to find, enable the filter function.
Figure 3-3 Filter Function

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4 Confirm that the following are detected.
•LED Switch Service (UUID: 58831926-5F05-4267-AB01-B4968E8EFCE0)
•Switch State Characteristic (UUID: 58837F57-5F05-4267-AB01-B4968E8EFCE0)
•LED Blink Rate Characteristic (UUID: 5883C32F-5F05-4267-AB01-B4968E8EFCE0)
Figure 3-4 Confirmation of Connection Establishment
5 Tap the Switch State characteristic to notify the smartphone of pressing SW1 on this product.
Figure 3-5 Selecting Switch State Characteristic

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6 Allow notifications from your smartphone. Tap the “Notification Off” button to change the display to
“Notification On”.
Note: In the iOS version of GATTBrowser, tapping the “Enable Notification” button will change the display
to “Disable Notification”.
Figure 3-6 Allowing Notifications
7 When SW1 on this product is pressed, “01” is notified to GATTBrowser.
Figure 3-7 Notification of Switch Status

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8 Return to the previous screen.
9 Tap the LED Blink Rate characteristic to change the LED0 blink rate from your smartphone.
Figure 3-8 Selecting LED Blink Rate Characteristic
10 Enter a 2-digit hexadecimal number in the text box and tap the “Write” button. LED0 blinks at intervals of
entered value × 100ms. Entering 00 turns off LED0.
Figure 3-9 LED Blink Control
11 When disconnected, this product will return LED0 to blinking at 1-second intervals and restart Advertising.

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3.2 Bluetooth Device Address Confirmation
Software stored at the time of shipment to this product starts advertising at Static Device Address after
power-on. If it is necessary to identify this product with the Bluetooth Device Address when connecting to this
product from a device other than a smartphone, you can check this product’s address using the following
procedure.
1. Connect this product to your PC.
2. Prepare a terminal emulator that supports VT100 emulation on your PC. In this example, Tera Term is
used.
3. Start Tera Term and select the COM port labeled “USB Serial Port” to which this product is connected.
Figure 3-10 COM Port Selection
Set the terminal and serial port as shown in
4. Table 3-1 in Tera Term.
Table 3-1 Terminal Emulator Setting
Item
Setting
New-line (Receive)
LF
New-line (Transmit)
CR
Terminal Mode
VT100
Baud rate
115200
Data
8bit
Parity
none
Stop bits
1bit
Flow Control
none
Figure 3-11 Setting Window of Tera Term

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5. Press the Enter key in Tera Term, and the prompt “$” is displayed.
6. Enter “vs addr get curr rnd” and press the Enter key to check the Bluetooth Device Address.
Figure 3-12 Address Confirmation