NXP Semiconductors OM11031

Overview

OM11031 from SEGGER Microcontroller GmbH & Co. KG is a J-Link ARM debug probe supporting JTAG and SWD interfaces for ARM7/9, Cortex-M0/M3/M4/M7, and Cortex-A5/A8/A9 cores. It delivers up to 15 MHz JTAG clock speed, USB 2.0 full-speed connectivity, and built-in flash download acceleration. It enables real-time debugging, flash programming, and SWO trace on embedded target boards during firmware development.

For engineers reviewing the OM11031 datasheet, OM11031 pinout, OM11031 application, or OM11031 equivalent, this page provides verified technical context, key specifications, supply support, manufacturer background, and targeted FAQs - all aligned with UM08001 (Rev. 1, Sep 2011) and official SEGGER product documentation.

Technical Context

The OM11031 implements a USB-to-JTAG/SWD bridge with on-device firmware intelligence for core-specific reset handling, flash algorithm execution, and memory access optimization. It supports adaptive clocking, voltage-level translation (1.2–3.3 V target interface), and automatic detection of ARM core architecture variants.

It integrates hardware-level trace support via SWO (Single Wire Output) for Cortex-M devices and enables trace data capture through host-side software such as J-Link GDB Server or Segger Ozone. The device operates without external power, drawing full functionality from USB bus power.

Key Specifications

Availability

OM11031 is available at Aetrix Electronics and suitable for embedded firmware development, production programming, and automated test environments requiring stable component supply, long-term toolchain continuity, and certified debug infrastructure.

Supply support for OM11031 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

SEGGER Microcontroller GmbH & Co. KG is a German engineering company specializing in embedded software tools, middleware, and hardware debug solutions since 1992. Its products serve medical, automotive, industrial, and consumer electronics markets.

The OM11031 belongs to the J-Link ARM product line, designed specifically to provide robust, vendor-agnostic debug access to ARM-based microcontrollers - prioritizing reliability, cross-IDE compatibility, and field-upgradable firmware.

FAQ

What is the OM11031 used for in embedded development?

The OM11031 is a J-Link ARM debug probe used to establish JTAG or SWD communication between a host PC and ARM-based target microcontrollers. It enables source-level debugging, flash programming, real-time memory inspection, and SWO trace - all critical functions during firmware bring-up, validation, and maintenance of OM11031-supported devices like NXP LPC and ST STM32 series.

Does the OM11031 support Cortex-M4 processors?

Yes, the OM11031 fully supports Cortex-M4 processors via both JTAG and SWD interfaces. Its firmware includes built-in initialization sequences and debug access logic specific to Cortex-M4 features such as FPU register visibility, NVIC configuration, and vector table relocation - confirmed in UM08001 Section 1.5 and Device Specifics chapters.

Can the OM11031 be used with IAR Embedded Workbench?

Yes, the OM11031 is natively supported by IAR Embedded Workbench for ARM. It appears as "J-Link" in the debugger configuration menu and requires no additional drivers beyond the standard J-Link software package. Integration includes full flash download, breakpoint management, and RTOS-aware debugging for embOS and other kernels - per UM08001 Section 1.7 and IAR's official toolchain documentation.

Is the OM11031 compatible with Linux host systems?

Yes, the OM11031 operates on Linux hosts using SEGGER's officially supported J-Link software package (v4.36+), which includes udev rules, ARM-compatible binaries, and command-line tools like J-Link Commander and J-Link GDB Server. USB enumeration and JTAG communication are confirmed functional on Ubuntu, Debian, and CentOS distributions per UM08001 Section 1.2 and SEGGER's Linux release notes.

What is the maximum target interface voltage the OM11031 can handle?

The OM11031 supports target interface voltages from 1.2 V to 3.3 V, with automatic level detection and adaptation. It does not support 5 V JTAG signaling - attempting connection to 5 V-only targets may damage the probe. This specification is explicitly defined in UM08001 Section 1.5.1 and Hardware chapter tables for OM11031.