NXP Semiconductors
UM11579
PCA9957HN-ARD evaluation board
8 GUI Description
A GUI application is available for the three EVK boards from NXP Semiconductors. The
application is common for all EVKs/development boards.
This section describes the GUI application and how the user can control the
PCA9957HN-ARD daughter board from the graphical interface: First, install
the GUI package and software package downloaded from the NXP site (
)
on the PC (Windows 10). For more installation details, download and read
EVK_Firmware_And_GUI_Install_Guide_For_Arduino_Boards.pdf instruction file from
). Once installation is complete, assure that one of the three supported
EVKs with the attached PCA9957HN-ARD daughter board is connected to the PC and
powered-on. Open the NXP_GUI(PCA995x) GUI application. An interface will appear as
8.1 Settings
Figure 10. Graphical user interface — Settings tab activated
The GUI application starts with the
Settings
tab (marked with red arrow). The blue region
at the top contains indicators that display the status of each of the LEDs located on the
PCA9957HN-ARD daughter board (marked with the red arrow.) To the left of the LED
indicators are two read-only flags (also marked with a red arrow) mapped to the MODE2
register (#01h). The
FAULT
flag indicates that the PCA9957HN-ARD's internal controller
has detected an LED output error (no load, short). The
OVERTEMP
flag indicates that
the PCA997HD-ARD die temperature exceeds its specified limit. (See the “LED error
detection” and “Overtemperature protection” sections in PCA9957 datasheet.)
Below the LED indicators are three sections:
General Setting
on the right,
Device
Setting
in the middle, and
Board Setting
on the left.
Board Setting
parameters are:
• Select EVK
displays a list of EVKs. Selecting a wrong EVK board causes the
connection to fail and a pop-up window with the message: “
Unable to Connect with
EVK
” appears on the screen.
UM11579
All information provided in this document is subject to legal disclaimers.
© NXP B.V. 2021. All rights reserved.
User manual
Rev. 1 — 25 February 2021
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