NXP Semiconductors
KW45B41Z-EVKUM
KW45B41Z-EVK Board User Manual
2.14 Board operating conditions
The operating temperature range for the KW45B41Z-EVK board is -40
℃
to +85
℃.
See KW45 Product Family
Data Sheet for more details on device operating conditions.
3 MCU-Link OB debug probe
This section describes the MCU-Link OB debug probe and explains how to connect it to the target MCU
(KW45B41Z).
3.1 MCU-Link overview
MCU-Link is a debug probe architecture jointly developed by NXP and Embedded Artists. The MCU-Link
architecture is based on the LPC55S69 MCU, which is based on the Arm Cortex-M33 core.
NXP uses MCU-Link OB on its evaluation kits (EVK boards), for example, KW45B41Z-EVK. MCU-Link is also
available as a standalone debug probe in the following two types:
• MCU-Link (base model): For more details, see https://www.nxp.com/design/microcontrollers-developer-
resources/mcu-link-debug-probe:MCU-LINK
• MCU-Link Pro (fully featured): For more details, see https://www.nxp.com/design/microcontrollers-developer-
resources/mcu-link-pro-debug-probe:MCU-LINK-PRO
All these MCU-Link probes use the same firmware.
NXP EVK boards have some configuration strap pins that determine the type of MCU-Link used. The MCU-Link
firmware reads these pins during boot process to determine the MCU-Link type.
In the KW45B41Z-EVK board, some of the strap pins can be configured via jumpers; however, most of these
configuration changes are made before powering up the board.
3.1.1 Supported firmware options
Supported firmware options for the KW45B41Z-EVK MCU-Link debug probe are described below:
• By default, the KW45B41Z-EVK MCU-Link debug probe is programmed with firmware based on CMSIS-DAP
protocol from NXP. This firmware also supports all other features supported in hardware. For details on how to
update MCU-Link firmware, see Section 3.2.
• A custom version of J-Link Lite is also available but this firmware is limited to debug and VCOM features
• Other firmware options available for MCU-Link OB may not provide the buffer enable / direction control
support that is required to correctly configure the KW45B41Z-EVK hardware. Therefore, care should be taken
while using such firmware.
3.1.2 Using MCU-Link with development tools
The LPC55S69 MCU is fully supported by the MCUXpresso suite of tools, which provides device drivers,
middleware, and examples to allow rapid development. MCUXpresso also provides configuration tools and
an optional free IDE. The MCUXpresso software is compatible with the open source MCU operating system
FreeRTOS and tools from vendors, such as IAR.
The LPC55S69 MCU can also be used with some debug probes from SEGGER.
3.2 Installing device drivers and updating MCU-Link firmware
MCU-Link is supported on host computers running on Windows 10, MacOS X, and Ubuntu Linux operating
systems (OSs). For each of these OSs, an MCU-Link firmware package is available that includes the host
KW45B41Z-EVKUM All information provided in this document is subject to legal disclaimers. © 2023 NXP B.V. All rights reserved.
User manual Rev. 2 — 13 February 2023
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