Third-party C module: SystemView

Overview

This module contains a version of Segger SystemView embedded source code that has been modified to work with MICROEJ VEE.

This modified code needs to be added to your target VEE Port implementation. When properly integrated, it allows to visualize MICROEJ VEE events inside SystemView.

The binding between SystemView and MICROEJ VEE events is done using the Event Tracing feature, which relies on the Trace API, refer to the related documentation for more information:

• Event Tracing Library
• Event Tracing: VEE Port Installation

Enabling Event Tracing requires to implement the LLTRACE and LLMJVM_MONITOR Low Level APIs of a MicroEJ VEE Port with SystemView, refer to the related documentation:

• LLTRACE: Trace
• LLMJVM_MONITOR: Core Engine Monitoring

The AbstractionLayer-EventTracing-SystemView repository provides a ready to use implementation of LLTRACE and LLMJVM_MONITOR for SystemView.

Usage

1. These sources can be included in the VEE Port with the method you prefer, by using this repository as a submodule or by doing a copy of the sources in the VEE Port repository.

2. The configuration file SEGGER_SYSVIEW_configuration.h allows to configure the SystemView integration in the target VEE Port. Read carefully this file and SEGGER_SYSVIEW_ConfDefaults.h to get information of the default setting.

Requirements

• tested with Segger SystemView v2.52a (until version 1.3.1)
• tested with Segger SystemView v3.58 (version 2.0.0)

Validation

Here is a non exhaustive list of tested environments:

• Hardware
  • ITE ARM9 IT986x processor SoC (version 2.0.0)
• Compilers / development environments:
  • ITE ARM GNU Toolchain GCC 5.4.0 (version 2.0.0)
• RTOS tested and versions:
  • FreeRTOS V10.4.3 (version 2.0.0)

MISRA Compliance

As a third-party module, the sources have been developed by the source provider, SEGGER in this case. After an analysis, it appears that this module is not MISRA compliant.

Dependencies

• MicroEJ Architecture 7.x or higher (until version 1.3.1).
• MicroEJ Architecture 8.x or higher (version 2.0.0 and above).

Source

Fork of SystemView v3.58 embedded target sources.

Restrictions

None.

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Copyright 2017-2025 MicroEJ Corp. All rights reserved. Use of this source code is governed by a BSD-style license that can be found with this software.

SEGGER strongly recommends to not make any changes
to or modify the source code of this software in order to stay
compatible with the SystemView and RTT protocol, and J-Link.

Redistribution and use in source and binary forms, with or
without modification, are permitted provided that the following
condition is met:

o Redistributions of source code must retain the above copyright
notice, this condition and the following disclaimer.

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