NXP Semiconductors
UM11704
PCAL6416AEV-ARD evaluation board
Ref Des
Test point / jumper label
Description
TP4
GND
Ground
TP5
SDA
The SDA line (I
2
C bus)
TP6
SCL
The SCL line (I
2
C bus)
TP7
RST
The RESET input of PCAL6416A
TP8
ADDR
The ADDR input of PCAL6416A
Table 4. PCAL6416AEV-ARD test points
...continued
5 Installing and configuring software tools
PCAL6416A_ARD evaluation board is designed and built as a daughter board able to
work in conjunction with a mother board equipped with an Arduino port. The board was
built to be fully compatible with the following NXP Evaluation (EVK) boards:
•
IMXRT1050 EVK Board;
•
LPCXpresso55S69 Development Board;
•
i.MX 8M Mini LPDDR4 EVK Board;
Each evaluation / development board benefits by firmware support which can be
downloaded from NXP company site (
). Before starting, the EVK
motherboard must be programmed with the corresponding firmware package.
Additionally, a GUI application (Windows 10) is available for download from the NXP
site, allowing rapid testing and operation of PCAL6416AEV-ARD daughter board
through the one of above mentioned EVK. The GUI application is common for all three
EVKs and for the PCAL6xxx I/O expander development card family, manufactured
by NXP (PCAL6408A, PCAL6416A, PCAL6524 and PCAL6534 ICs). For details
regarding installation of the EVK firmware and GUI host software on PC please download
EVK_Firmware_And_GUI_Install_Guide_For_Arduino_Boards.pdf instruction file from
). Once the software is installed, the first step is to select the
correct combination EVK – PCAL6416AEV-ARD daughter card, and then the board
can be controlled from the GUI interface. See
and
for more details
regarding the operation of PCAL6416AEV-ARD from GUI software.
6 Configuring the hardware
6.1 Using the PCAL6416AEV-ARD with an IMXRT1050 EVK board
shows the required hardware for operation of the PCAL6416AEV-ARD daughter
board with IMXRT1050 EVK. The following items are necessary:
•
One IMXRT1050-EVK board
•
One PCAL6416AEV-ARD daughter board
•
One USB-A / USB Micro-B cable
•
A PC with Windows 10 operating system
The IMXRT1050 EVK mother board can be powered by one of the three methods:
•
Connecting an external 5VDC power supply to the barrel power connector (J2) on the
board
•
Connecting an USB cable from the PC to the Micro-B USB connector (J9) on the board
UM11704
All information provided in this document is subject to legal disclaimers.
© NXP B.V. 2021. All rights reserved.
User manual
Rev. 1.0 — 1 December 2021
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