NXP Semiconductors
UM11714
PCF85263ATL-ARD evaluation board
Figure 6. PCF85263ATL-ARD daughterboard / LPCXpresso55S69 motherboard operation
6.3 Using the PCF85263ATL-ARD with an i.MX 8M Mini LPDDR4 EVK
board
When an i.MX 8M Mini LPDDR4 EVK board is used with the PCF85263ATL-ARD
board, a third board (IMX8MMINI-IARD interposer board) must be used, especially
designed and built as EVK – daughterboard interconnection. The EVK board i.MX
8M Mini LPDDR4 is not equipped with an Arduino port; instead it has a 2 x 20 pin
expansion connector (J1003, see i.MX 8M Mini LPDDR4 EVK user manual). J1003 is a
multipurpose port, containing various digital I/O lines, including specialized I
2
C and SPI
buses. Starting from the expansion connector pin chart, an Arduino port interposer board
was developed, with the role of signal-to-signal bridge between the 2 x 20 connector pins
on the i.MX 8M Mini LPDDR4 EVK and the mated connectors of the Arduino port present
on the PCF85263ATL-ARD daughterboard.
To operate the setup, along with the EVK and the daughterboard, a third board must be
included in the setup assembly.
shows the necessary boards and how these
boards are connected. The configuration consists of:
•
One i.MX 8M Mini LPDDR4 EVK board
•
One PCF85263ATL-ARD daughterboard
•
One IMX8MMINI-IARD interposer board
•
One USB-A / USB-C cable
•
One USB-A / USB Micro-B cable
•
A PC with Windows 10 operating system
UM11714
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User manual
Rev. 1.0 — 17 February 2022
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