NXP Semiconductors PCA9846PW-ARD, Руководство пользователя, Страница: 20 / 27

NXP Semiconductors
UM11759
PCA9846PW-ARD evaluation board
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 13 .
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. Refer to UM11581
[12]
.
7. Install GUI application on the PC. Refer to UM11581
[12]
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 15. PCA9846PW-ARD expansion board and i.MX 8M Mini LPDDR4 EVK board
operation
6.4 Using PCA9846PW-ARD with another device
The PCA9846PW-ARD expansion board can be operated with other EVK board, which
has an Arduino port. There are two options to connect the board. Use another EVK
equipped with an Arduino port, or an EVK without Arduino port. In the first case, use
a firmware developed with PCA9846A specifications and attach PCA9846PW-ARD
expansion board to the EVK to operate the board. In the second case, using the pin
chart of Arduino connectors, see Table 1 , make the necessary electrical connections
(for power, I
2
C-bus and control lines), and develop the desired firmware, assuring that
is compliant with IC specifications. Refer to PCA9846A
[13]
to read details about internal
registers of the DUT IC and data exchange between internal controller and the EVK.
Check for correct electrical connections and avoid data conflicts on the signal lines, to
prevent IC damage.
UM11759 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2022. All rights reserved.
User manual Rev. 1 — 6 June 2022
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