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W renboard User Manual Copyright © 2022 Richtek T echnology Corporatio n. All rights reserve d. is a registered trad emark of Richt ek T echnolog y Corporatio n RD0001-01_01 Aug ust 20 22 www .ri chtek.com 5 y o u r p o …
Wrenboard
User Manual
Copyright © 2022 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation
RD0001-01_01 August 2022 www.richtek.com
4
your power partner.
2.4 Graphical User Interface
After software and hardware installation, you can run Richtek Bridgeboard Control Panel to control the target device
by GUI (Figure 2). For details regarding the operation, please refer to “Bridgeboard Control Panel User Manual”.
Figure 2. The GUI of Richtek Bridgeboard Control Panel
Wrenboard
User Manual
Copyright © 2022 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation
RD0001-01_01 August 2022 www.richtek.com
5
your power partner.
3. Hardware Description
Standard USB A plug
It can be connected to PC directly.
Micro-B USB port
It is an alternative to connect Wrenboard to PC when the long distance
between Wrenboard and PC is needed.
I
2
C voltage LED
The Red LED indicates that the I
2
C pins are operated in 3.3V.
I
2
C voltage LED
The Blue LED indicates that the I
2
C pins are operated in 1.8V.
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2
3
4
Wrenboard
User Manual
Copyright © 2022 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation
RD0001-01_01 August 2022 www.richtek.com
6
your power partner.
System LED
If the Wrenboard execute a command, the white LED will be switched on
/ off.
I
2
C voltage exchange / Firmware update button
To exchange I
2
C voltage
Click FN button in normal operation mode, the I
2
C voltage will be
exchanged between 3.3V and 1.8V level.
To enable firmware download mode
Connect Wrenboard to PC and press FN button. If the red and blue
LEDs are blinking alternatively, it means firmware download mode is
ready.
I
2
C and GND pins
SCL (Serial Clock Line)
SCL is a serial clock line with a 2.7kΩ pull-up resistor. It is used to
synchronize the data transfers on the I
2
C bus.
SDA (Serial Data Line)
SDA is a serial data line with a 2.7kΩ pull-up resistor. It is used to
send data and address.
3.3V power pin
It is suggested to limit the output current within 100mA.
1.8V power pin
It is suggested to limit the output current within 100mA.
GPIO
The GPIO pin can be configured as GPIO (P0.1), 1-wire (GSOW) and
PWM function according to programming setting. User can connect this
pin to control device in either function.
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