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NXP Semiconductors
UM11623
PCA9959HN-ARD evaluation board
4. Install GUI application on PC (see
UM11581, Arduino shields GUI and firmware
).
5. Open the GUI application to operate the device from the PC. For details regarding
shows the two boards in operation.
Figure 9. PCA9959HN-ARD daughter board / LPCXpresso55S69 board assembly
7.3 Using the PCA9959HN-ARD with an i.MX 8M Mini LPDDR4 EVK
When 8MMINILPD4-EVK board is used with the PCA9959HN-ARD board, a third board
(IMX8MMINI-IARD interposer board) must be used, especially designed and built as EVK
– daughter board 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 PCA9959HN-ARD
daughter board.
shows how these three boards are connected. This configuration consists of:
•
One 8MMINILPD4-EVK board
•
One PCA9959HN-ARD board
•
One IMX8MMINI-IARD interposer board
•
One USB-A / USB-C cable
UM11623
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© NXP B.V. 2021. All rights reserved.
User manual
Rev. 1 — 21 May 2021
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