NXP Semiconductors PCAL6408A-ARD, User Manual, Page: 17 / 25

NXP Semiconductors
UM11704
PCAL6416AEV-ARD evaluation board
To configure and operate the setup, follow the below steps:
1. Insert the PCAL6416AEV-ARD onto the IMX8MMINI-IARD interposer board Arduino
connectors (located on the top side)
2. Attach IMXMMINI-IARD connector plug J1 (located on the bottom of the board) into
J1003 expansion board located on the top side of i.MX 8M Mini LPDDR4 EVK (see
Figure 8 )
3. Power-up the EVK board using an USB Type C cable attached to PORT 2
4. Connect the EVK to the PC, using an USB Micro-B cable, attached to J901 debug
port
5. Place SW101 in ON position to power-up the boards
6. Install the MIMXRT1050 target firmware (download UM11581, Arduino shields GUI
and firmware installation manual from NXP site)
7. Install GUI application on the PC (see the instruction file referred in the above step)
8. Open the GUI application to operate the device from the PC. For details regarding
GUI operation see Section 7
Figure 9. PCAL6416AEV-ARD daughter board / i.MX 8M Mini LPDDR4 EVK board operation
6.4 Using PCAL6416AEV-ARD with another device
The PCAL6416AEV-ARD daughter board can be operated with other EVK board, which
has an Arduino port. There are two options to connect the board: using other EVK
equipped with an Arduino port, and an EVK without Arduino port. In the first case, a
firmware shall be developed according with PCAL6416A specifications, and then simply
attach PCAL6416AEV-ARD daughter board to the EVK, to operate the board. In the
second case, using the pin chart of Arduino connectors ( Table 1 ), make the necessary
electrical connections (for power, I
2
C-bus and control lines), and develop the desired
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
17 / 25