NXP Semiconductors
UM10789
USB-I²C-bus dongle OM13518 with a GUI
UM10789
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© NXP B.V. 2014. All rights reserved.
User manual
Rev. 1 — 19 May 2014
7 of 19
5. Features of the Graphical User Interface (GUI)
The GUI can be used as a universal I
2
C-bus interface for controlling any peripheral
circuit. Alternatively some specific windows are available e.g. for the Real-Time Clocks
PCF85263 and PCF85363.
5.1 Universal I
2
C-bus interface
The Universal I
2
C interface allows controlling any circuit by entering directly the I
2
C-bus
instructions. It is part of the Tab
USB-I2C Commands
.
Fig 5.
First Tab: USB-I2C commands
Procedure and details:
1. Universal I
2
C-bus interface control, type in the following format:
•
Writing data, e.g.:
s A2 28 04 p
press
Send Command
(
s
= START,
A2
= slave address,
28 04
= data,
p
= STOP)
•
Reading data, e.g.:
s A2 28 s A3 0A p
: press
Send Command
setting address pointer, then reading 10 bytes (0Ah)
2. The sent data will be reflected in the field
Transmitted Data.
3. The read data bytes are listed in the field
Received Data
.
4. Configuration can be saved on the PC (see section 5.2.1).
5. Configuration can be reloaded to continue with the used presetting for further tasks
(see section 5.2.1.2).
