Hw Setup For Flexgui Operation - NXP Semiconductors UJA116 A Series User Manual

NXP Semiconductors

6.2.2 HW setup for FlexGUI operation

UM11379
User manual
The watchdog in the SBC must be off while the FlexGUI is running. The watchdog is
always off in Forced Normal mode and off by default in Software Development mode (a
sample script for switching the device to Software Development mode via the FlexGUI is
included in Section 6.4.6).
A system reset is generated after programming the MTPNV memory, after which the
connection between the FlexGUI and the board will need to be re-established (see
Section 6.4.2). If the re-connection fails, try again after a power-off/wait-3-seconds/
power-on sequence on the UJA116xA-EVB.
Once the FlexGUI firmware has been installed on the microcontroller board, the
jumpers on the boards need to be set as illustrated in
UJA116xA-EVB plugged into the microcontroller board. The resulting supply and data
line interconnections between the boards are shown in
relevant header interconnections are shown in the schematics extract in
the full board schematics for further details.
Figure 24. UJA116xA-EVB/S32K144EVB jumper settings for FlexGUI operation
All information provided in this document is subject to legal disclaimers.
Rev. 1 — 23 April 2021
UM11379
UJA116xA evaluation boards
Figure 24 before plugging the
Figure 25. Note that only the
Figure
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25. See
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