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About Erich Styger

Embedded is my passion....

Start New VS Code Instances with Unique Environments

If working with different tool chains, SDKs, and vendors, then one must use different environments.

With VS Code, this can end up in counter-intuitive situation. When I start a new Visual Studio Code instance, it will open a new window. But if there is already an instance running, it actually will re-using that environment. This can cause lots of subtle problems, including failed builds.

VS Code re-using instance environment

So how to start a new Visual Studio Code Window, with a new instance?

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GitLab Automated CI/CD Embedded Multi-Project Building using Docker

In CI/CD for Embedded with VS Code, Docker and GitHub Actions, I used GitHub to build a pipeline. This setup supports continuous integration within a CI/CD environment.

This time, let’s do a similar thing. But instead of GitHub, I use GitLab with VS Code. And I use it for a project where three different MCUs are used: the Raspberry Pi Pico-W, an Espressif ESP32 plus the NXP K22FX512 on the Sumo robot:

Raspberry Pi Pico-W, Espressif ESP32 and Robot with NXP K22FX512
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Processor Expert Components: 24-Dec-2024 Release

The year 2024 is coming to its end, time for a Year-End-Processor-Expert-Component-Release.

Processor Expert Components in Eclipse (KDS)

Also, this is now the 10th anniversary of the releases on Sourceforge, starting with https://mcuoneclipse.com/2014/10/21/mcuoneclipse-releases-on-sourceforge/ back in 2014.

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On-Target Testing with LinkServer Runner and VS Code

The release 24.9.75 of LinkServer software and tools includes interesting feature: the ability to use the debug probe for automated on-target testing. It includes a ‘runner’ which can program, launch and run the application on the target through a debug probe. While the target is running, it uses semihosting or UART for communication. This makes it a perfect tool for automated testing, especially in a CI/CD environment. One such environment is running automated tests with CMake and CTest in VS Code.

Automated on-target testing with VS Code and LinkServer
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NXP LinkServer 24.9.75: New GUI for Flash Programming

NXP has released a new version of the LinkServer software. This is a utility for debugging and using scripting for a wide range of devices and debugging probes. It includes support for the MCU-Link, LPC-Link2, on-board and CMSIS-DAP based debug probes with the ‘LinkFlash’:

Programming with LinkFlash

With the new release, it includes a graphical user interface (GUI) for flash programming. It also includes erasing, verifying, recovery, and saving the memory to a file.

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Automated On-Target Testing with J-Run’s –args Feature

SEGGER has released a new version of their J-Link tools suite. That suite includes the J-Run utility which loads, executes and monitors the output of the target. Output can be with RTT (Real-Time Transfer) or semihosting. This makes it useful for automated tests with CMake and CTest:

CTest with J-Run

What has been added from the V7.98g release is the ability to send arguments to the running application using the --args command, for example with CMake/CTest:

set (RUNNER_CTEST_COMMAND "$ENV{SEGGER_PATH}/JRun" --verbose --device LPC55S16 --silent --rtt -if SWD)

add_test(
NAME Led_1
COMMAND ${RUNNER_CTEST_COMMAND} --args "Led_1" ${TEST_EXECUTABLE}
)

Like applications running on the host, I can now pass arguments to the running application. This is useful to set up the target, or to tell which kind of tests to run.

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Eclipse Workspace Sharing: Team Project Set Export and Import

In my Eclipse workspace I have many projects, from multiple git repositories.

Eclipse (MCUXpresso) with projects from multiple repositories

How can I share a list of projects, say in a development team? As we all should know: the Eclipse workspace (.metadata folder) should not be shared. So how can I share it? There is a cool feature in Eclipse which does exactly that. It shares a configurable set of workspace projects, even if they are on different git repositories.

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How to Use SystemView Data Plot Feature for Real-time Data Visualization

There is a new feature in the SEGGER SystemView: the ability to plot any data provided by the application, for example sensor data or any other useful data:

SEGGER SystemView with Data Plot
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Tutorial: GNU Coverage with C++ for Embedded Applications

In an earlier article I explained how to generate GNU coverage information, for an embedded application written in C.

In this article, I show the steps and configuration needed to use GNU gcov targeting an embedded application with C++.

GNU gcov Coverage with C++ Application
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