NXP Semiconductors
UM12018
FRDM-MCXN947 Board User Manual
Debug scenario Feature support Jumper / connector settings
Use an external debugger to
debug the target MCU (MCX
N94X)
• SWD is disabled
• VCOM is enabled
• USBSIO is enabled
• J19 must be shorted
• J18 must be open
• Connect an external debugger
to the target MCU SWD
connector J23
Use MCU-Link as a debugger for
an external target MCU
• SWD is enabled
• VCOM is not supported
• USBSIO is not supported
• J19 must be open
• J18 must be shorted
• Connect an external target
MCU to the target MCU SWD
connector J23
Table 27. Supported debug scenarios...continued
3.4 MCU-Link host driver and utility installation
The MCU debug probe is supported on Windows 10/11, MacOS X, and Ubuntu Linux platforms. The probe
uses standard OS drivers. For Windows, the installation program also includes information files to provide user-
friendly device names.
MCU-Link is supported by the Linkserver utility. Running the Linkserver installer also installs all the drivers and
a firmware update utility required for MCU-Link. The Linkserver utility is a GDB server and flash utility from NXP
with support for many NXP debug probes. You are recommended to use the Linkserver installer unless you are
using MCUXpresso IDE version 11.6.1 or earlier. For more details on this utility, refer https://nxp.com/linkserver.
Note: Installing the LinkserServer utility (using the Linkserver installer) only installs the required device drivers.
LinkServer does not update the firmware, but the LinkerServer installation package includes the utilities that are
used to update the firmware. In case you are using MCUXpresso IDE version 11.6.1 or earlier, you must install
the firmware update utility version 2.263, which is not included in the LinkServer installation.
If you do not use the Linkserver utility, follow the steps below to install the firmware MCU-Link update utility and
information files:
1. Visit the board page on the NXP website.
2. Go to the Design Resources > Software section. Under the Development Software category, MCU-Link
installation packages for Windows, MacOS, and Linux platforms are available.
3. Download the MCU-Link installation package applicable to your host OS.
4. Run the installer program (for Windows) or install the firmware package (for MacOS or Linux). It is
recommended to update to the latest version of the firmware as it might have changed since your MCU-Link
was manufactured.
Before updating the firmware by using the steps listed in Section 3.5, check the compatibility between the MCU-
Link firmware and the MCUXpresso IDE. Table 28 describes the compatibility between the MCU-Link firmware
and the MCUXpresso IDE.
FreeMASTER support viaMCU-Link
firmware
version
USB driver
type
CMSIS-SWO
support
SWD / JTAG USB bridge
Supported MCUXpresso IDE
versions
V1.xxx and
V2.xxx
HID No Yes Yes MCUXpresso 11.3 or later
V3.xxx (up to
and including
V3.108)
WinUSB No Yes FreeMASTER V3.2.2
or later
MCUXpresso 11.7.0 or later
Table 28. Compatibility between MCU-Link firmware and MCUXpresso IDE
UM12018 All information provided in this document is subject to legal disclaimers. © 2024 NXP B.V. All rights reserved.
User manual Rev. 1 — 20 January 2024
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