NXP Semiconductors UM11712, User Manual, Page: 15 / 31

NXP Semiconductors
UM11712
PCAL6534EV-ARD evaluation board
Additionally, a GUI application (Windows 10) is available for download from the NXP
site, allowing rapid testing and operation of PCAL6534EV-ARD daughterboard through
one of above mentioned EVKs. 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 www.nxp.com/ . Once the software is installed, the first step is to select the correct
combination EVK – PCAL6534EV-ARD daughter card, and then the board can be
controlled from the GUI interface. See Section 6 and Section 7 for more details regarding
the operation of PCAL6534EV-ARD from GUI software.
6 Configuring the hardware
6.1 Using the PCAL6534EV-ARD with an IMXRT1050 EVK board
Figure 5 shows the required hardware for operation of the PCAL6534EV-ARD
daughterboard with IMXRT1050 EVK. The following items are necessary:
• One IMXRT1050-EVK board
• One PCAL6534EV-ARD daughterboard
•
One USB-A / USB Micro-B cable
• A PC with Windows 10 operating system
The IMXRT1050 EVK motherboard 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
• Connecting an USB cable from the PC to the USB connector (J28) on the board. When
the PC is connected in this fashion, the USB port can simultaneously act as a debug
interface. Therefore, by using a single USB cable connected to J28, the EVK can be
powered and at the same time linked to the PC for data exchange.
The older USB ports (from PC) are not able to deliver the necessary current (500mA),
before establishing the communication, use an external power supply (connected to J2).
From J1 on the EVK board (see
Figure 5 ) the user can select the power configuration
for the motherboard. For further details, download the IMXRT1050 EVK Board Hardware
User Guide (MIMXRT1050EVKHUG.pdf) available here (link to be set).
UM11712 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2022. All rights reserved.
User manual Rev. 1.0 — 31 January 2022
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