NXP Semiconductors
UM10340_5
TFA9879 demonstration PCB
© NXP B.V. 2011. All rights reserved.
User manual
Rev. 05 — 30 aug. 2011
8 of 20
2.2 Software setup (GUI)
The TFA9879 is controlled via I2C. The Graphic User Interface (GUI) software (including
USM drivers), which are supplied by the demonstration PCB, enable easy control of the
I2C registers in the TFA9879.
Important remark:
First install the GUI software, which includes the USM drivers, before
connecting the USM interface to the PC.
2.2.1 Installing software
Follow below steps for a proper installation of the I2C GUI and USM drivers:
1. Run the installation file (TFA9879_4_2_0.exe or higher) on a Windows XP operating
system (or higher) and follow the installation procedure. The GUI will start
automatically after installation.
2. Exit the I2C GUI program.
3. Connect the USM interface to the PC.
4. Windows will automatically detect the USM interface and a hardware wizard helps to
install the software. Select the option “install the software automatically”. Furthermore
a warning about Windows Logo testing might appear. Click on “Continue Anyway”
and installation of the USM interface will be finalized.
5. Connect the I2C cable to the demonstration PCB and turn-on the power supply. S2
and S3 at the demonstration PCB should be in the “ON” position. Start-up the I2C
GUI program:
6. Select from the menu respectively I2C
Config
Detect and wait until “USM”
appears in the interface box. Close this window.
Figure 6: I2C menu
Figure 5: Warning
