CI For Embedded Software - Lucas Jenss & Folker Bernitt

•

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What are the approaches and challenges we encounter when applying continuous integration techniques to embedded software, where the behaviour is dictated by how the hardware, it’s (3rd party) firmware and its peripherals behave.

Software

ARM
Cortex M4
CPU
CAN
Cellular
Wifi
Bluetooth LE

ARM
Cortex M4
CPU
STM32F429 Discovery Kit

Platform abstraction
Vendor
supplied
Cortex M4
Posix
FreeRTOS
Linux
x86
Our software
Code written by us
Operating system
Drivers
CPU / Hardware architecture

UNIX
BUILD PIPELINE
Lint Compile Test
Software
Binary

SO FAR WE HAVE
● Basic toolchain
● Continuous Integration up and running
● Implement features!

EXTRAS
● Detect memory leaks
● Use a recent compiler (Clang, llvm, gcc)
● Clang sanitizers, e.g AddressSanitizer

UNIX
BUILD PIPELINE
Lint Compile Test
Software
Binary
Cross
Compile

UNIX
BUILD PIPELINE
Lint Compile Test
Software
Binary
build
container

INTEGRATION TESTS
Software
Binary
Cloud
Service 1
Cloud
Service 2
Cloud
Service 3

STARDATE 1207.3Long after the arrival of the ﬁrst prototype

PeakCAN
J-Link
Relay
control
UART
Radio module
Mini PC
(Linux)

CI software
FreeRTOS tests
on Linux
FreeRTOS tests
on Linux
Tests on PCB
Tests in the Cloud™
Test setup
(Hardware model 1)
Test setup
(Hardware model 2)

Type Addr Command Payload
-------------------------------------------
600 3D 40 00 20 01 00 00 00 00
580 3D 60 00 20 01 00 00 00 00
600 3D 80 00 20 01 01 00 04 05
580 3D 60 00 20 01 00 00 00 00
Hello 0x3D, could you please transmit entry 0x2000 Index 0x01?
Sure mate, I‘m 0x3D *wink wink*! Here‘s the data you requested!
Oh no, you‘ve sent a malformed message 0x3D. ABORT ABORT!
Sure mate, I‘m 0x3D *wink wink*! Here‘s the data you requested!

Flashnew
softwareandstart
At48hours:
Goto0
Verify
Time

1. Please send update
2. There’s an update3. Retrieve the update
4. Install update
5. Is update installed?

Linux build
ARM build
Core tests
PCB-specifc
tests
Integration
tests
Software
update tests
Long-running
tests
End-to-end
tests
Randomized
tests
Running on PCB
Running in the Cloud

THANK YOU
For questions, suggestions and feedback:
Lucas Jenss – ljenss@thoughtworks.com
Folker Bernitt – fbernitt@thoughtworks.com

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In the realm of real-time applications, Large Language Models (LLMs) have long dominated language-centric tasks, while tools like OpenCV have excelled in the visual domain. However, the future (maybe) lies in the fusion of LLMs and deep learning, giving birth to the revolutionary concept of Large Action Models (LAMs). Imagine a world where AI not only comprehends language but mimics human actions on technology interfaces. For example, the Rabbit r1 device presented at CES 2024, driven by an AI operating system and LAM, brings this vision to life. It executes complex commands, leveraging GUIs with unprecedented ease. In this presentation, join me on a journey as a software engineer tinkering with WebRTC, Janus, and LLM/LAMs. Together, we’ll evaluate the current state of these AI technologies, unraveling the potential they hold for shaping the future of real-time applications.

Unveiling the Tech Salsa of LAMs with Janus in Real-Time Applications

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In an era where security concerns are paramount, the integration of artificial intelligence (AI) into CCTV cameras has revolutionized surveillance capabilities. One of the most significant advancements is the ability to achieve real-time threat detection, enabling immediate responses to potential security breaches. This blog explores how AI is reshaping surveillance through real-time threat detection and the implications of this technology.

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CI For Embedded Software - Lucas Jenss & Folker Bernitt

1. CI FOR EMBEDDED SOFTWARE LUCAS JENSS FOLKER BERNITT

5. DAY ONEWhat do you mean „three months“?

6. ARM Cortex M4 CPU CAN Cellular Wifi Bluetooth LE

8. ARM Cortex M4 CPU STM32F429 Discovery Kit

9. DAY TWOWhat can we do right now?!

10.

11.

12. Platform abstraction Vendor supplied Cortex M4 Posix FreeRTOS Linux x86 Our software Code written by us Operating system Drivers CPU / Hardware architecture

13.

14. UNIX BUILD PIPELINE Lint Compile Test Software Binary

15. SO FAR WE HAVE ● Basic toolchain ● Continuous Integration up and running ● Implement features!

16. EXTRAS ● Detect memory leaks ● Use a recent compiler (Clang, llvm, gcc) ● Clang sanitizers, e.g AddressSanitizer

17. UNIX BUILD PIPELINE Lint Compile Test Software Binary Cross Compile

18. DAY πDockerize all the things!

19. UNIX BUILD PIPELINE Lint Compile Test Software Binary build container

20. INTEGRATION TESTS Software Binary Cloud Service 1 Cloud Service 2 Cloud Service 3

21. DAY 42STM32F429 Discovery kits arrived!

22. Platform abstraction Vendor supplied Cortex M4 Posix FreeRTOS Linux x86 Our software Code written by us Operating system Drivers CPU / Hardware architecture

23. UNITY

24. STARDATE 1207.3Long after the arrival of the ﬁrst prototype

25. PeakCAN J-Link Relay control UART Radio module Mini PC (Linux)

26. CI software FreeRTOS tests on Linux FreeRTOS tests on Linux Tests on PCB Tests in the Cloud™ Test setup (Hardware model 1) Test setup (Hardware model 2)

27. TESTSFour examples from our pipelines

28.

29.

30. YES WE CAN OPEN

31.

32.

33. Type Addr Command Payload ------------------------------------------- 600 3D 40 00 20 01 00 00 00 00 580 3D 60 00 20 01 00 00 00 00 600 3D 80 00 20 01 01 00 04 05 580 3D 60 00 20 01 00 00 00 00 Hello 0x3D, could you please transmit entry 0x2000 Index 0x01? Sure mate, I‘m 0x3D *wink wink*! Here‘s the data you requested! Oh no, you‘ve sent a malformed message 0x3D. ABORT ABORT! Sure mate, I‘m 0x3D *wink wink*! Here‘s the data you requested!

34. LONG ! TEST

35.

36. Flashnew softwareandstart At48hours: Goto0 Verify Time

37. END TO END END TO END TO TO

38. 1. Please send update 2. There’s an update3. Retrieve the update 4. Install update 5. Is update installed?

39. Linux build ARM build Core tests PCB-specifc tests Integration tests Software update tests Long-running tests End-to-end tests Randomized tests Running on PCB Running in the Cloud

40.

41. THANK YOU For questions, suggestions and feedback: Lucas Jenss – ljenss@thoughtworks.com Folker Bernitt – fbernitt@thoughtworks.com

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