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A NEW APPROACH TO DEFINING HUMAN TOUCH TEMPERATURE A new approach has been developed for updated NASA standards, which defines touch temperature limits in terms of skin temperature at pain onset for bare skin contact with hot and cold objects. The authors have developed an analytical verification method for safe hot and cold object temperatures for contact times from 1 second to infinity. -WERROR IS NOT YOUR FRIEND It is a tradeoff. Ignoring warnings may be convenient for the person who runs the build. On the other hand, new versions of compilers tend to optimize more aggressively, and may warn about undefined behaviour that was harmless before, but can cause hard-to-diagnose problems with the new compiler version. HOME - EMBEDDED ARTISTRY Explore the Frontiers and Foundations of Embedded Systems Development This website is for embedded systems developers who are dedicated to excellence and continual improvement. Finding high-quality embedded systems information is extremely challenging, even with the explosion in embedded devices being developed over the past decade. Our mission is to bring the state of firmware developmentLESSONS ARCHIVE
©2021 Embedded Artistry LLC. All rights reserved. EMBEDDED ARTISTRY and the OWL logo are registered trademarks of Embedded Artistry LLC. SMA & FATP BUILD INVENTORY TEMPLATES SMA & FATP Build Inventory Templates. $ 99.99. We use these two Excel templates in our business to ensure on-time part deliveries for SMA and FATP builds. File Format: .xlsx. Category: Template Tags: Manufacturing, Product Development, Project Management. Description. PRINTF A LIMITED NUMBER OF CHARACTERS FROM A STRING 5 July 2017 by Phillip Johnston • Last updated 21 April 2020. I learned recently that you can control the number of characters that printf will show for a string using a precision specifier (assuming your printf implementation supports this).. There are two ways to approach string-limiting. The first method specifies the number of characters to print inside the format string itself: ARDUINO LIBRARY-TO-LIBRARY DEPENDENCIES It seems that Arduino is currently planning library dependency support in a future release of the IDE. Details can be seen in this pull request and this issue. The gist is, you can add a depends entry to your library.properties file, which references the registered name of another library. Multiple libraries can be comma-separated. ARM POINTER ALIGNMENT REQUIREMENTS uint8_t* requires 1-byte alignment. For structures, the alignment is that of the most aligned member. The compiler will generate code on the assumption that a pointer is correctly aligned. It does not add code to perform run-time checks. A pointer may contain an incorrectly aligned address for a number of reasons. A common cause is casting: LEADERSHIP ADVICE FROM THE TAO TE CHING 9 July 2018 by Phillip Johnston • Last updated 21 April 2020As I mentioned in the lessons learned from the software architecture workshop, we can draw inspiration and lessons from all over. Today I want to share some wonderful leadership advice courtesy of Lao-Tzu (~500BC), the founder of Taoism. This advice comes from verse 17 Continue reading "Leadership Advice from the Tao Te Ching" TIMELESS LAWS OF SOFTWARE DEVELOPMENT 13 August 2018 by Phillip Johnston • Last updated 21 April 2020Updated: 20190913 I am always seeking the wisdom and insights of those who have spent decades working in software development. The experiences of those who came before us is a rich source of wisdom, information, and techniques. Only a few problems in our field Continue reading "Timeless Laws of Software IMPROVING YOUR CALLBACK GAME 1 February 2017 by Phillip Johnston • Last updated 25 March 2021Updated: 20191014 Callbacks abound in embedded system design. You can find all sorts of use cases: Registering for a notification when a specific event happens (e.g. starting to record video) Registering for a notification when an asynchronous event has completed (e.g. async usb transfer Continue reading "Improving FOONATHAN/MEMORY: SIMPLIFYING THE C++ MEMORY ALLOCATORC++ MEMORY ALLOCATORCUSTOM MEMORY ALLOCATORC++ CUSTOM ALLOCATORHOARD MEMORY ALLOCATORLOCK FREE MEMORY ALLOCATOR 7 June 2018 by Phillip Johnston • Last updated 21 April 2020. The memory library is developed by Jonathan Müller, a C++ library developer and author of foonathan::blog().This library provides an new STL-compatible C++ memory allocator called RawAllocator.The RawAllocator is similar to the standard Allocator but is easier to use. The library also provides a BlockAllocator type which can HOME - EMBEDDED ARTISTRY Explore the Frontiers and Foundations of Embedded Systems Development This website is for embedded systems developers who are dedicated to excellence and continual improvement. Finding high-quality embedded systems information is extremely challenging, even with the explosion in embedded devices being developed over the past decade. Our mission is to bring the state of firmware developmentLESSONS ARCHIVE
©2021 Embedded Artistry LLC. All rights reserved. EMBEDDED ARTISTRY and the OWL logo are registered trademarks of Embedded Artistry LLC. SMA & FATP BUILD INVENTORY TEMPLATES SMA & FATP Build Inventory Templates. $ 99.99. We use these two Excel templates in our business to ensure on-time part deliveries for SMA and FATP builds. File Format: .xlsx. Category: Template Tags: Manufacturing, Product Development, Project Management. Description. PRINTF A LIMITED NUMBER OF CHARACTERS FROM A STRING 5 July 2017 by Phillip Johnston • Last updated 21 April 2020. I learned recently that you can control the number of characters that printf will show for a string using a precision specifier (assuming your printf implementation supports this).. There are two ways to approach string-limiting. The first method specifies the number of characters to print inside the format string itself: ARDUINO LIBRARY-TO-LIBRARY DEPENDENCIES It seems that Arduino is currently planning library dependency support in a future release of the IDE. Details can be seen in this pull request and this issue. The gist is, you can add a depends entry to your library.properties file, which references the registered name of another library. Multiple libraries can be comma-separated. ARM POINTER ALIGNMENT REQUIREMENTS uint8_t* requires 1-byte alignment. For structures, the alignment is that of the most aligned member. The compiler will generate code on the assumption that a pointer is correctly aligned. It does not add code to perform run-time checks. A pointer may contain an incorrectly aligned address for a number of reasons. A common cause is casting: LEADERSHIP ADVICE FROM THE TAO TE CHING 9 July 2018 by Phillip Johnston • Last updated 21 April 2020As I mentioned in the lessons learned from the software architecture workshop, we can draw inspiration and lessons from all over. Today I want to share some wonderful leadership advice courtesy of Lao-Tzu (~500BC), the founder of Taoism. This advice comes from verse 17 Continue reading "Leadership Advice from the Tao Te Ching" TIMELESS LAWS OF SOFTWARE DEVELOPMENT 13 August 2018 by Phillip Johnston • Last updated 21 April 2020Updated: 20190913 I am always seeking the wisdom and insights of those who have spent decades working in software development. The experiences of those who came before us is a rich source of wisdom, information, and techniques. Only a few problems in our field Continue reading "Timeless Laws of Software IMPROVING YOUR CALLBACK GAME 1 February 2017 by Phillip Johnston • Last updated 25 March 2021Updated: 20191014 Callbacks abound in embedded system design. You can find all sorts of use cases: Registering for a notification when a specific event happens (e.g. starting to record video) Registering for a notification when an asynchronous event has completed (e.g. async usb transfer Continue reading "Improving FOONATHAN/MEMORY: SIMPLIFYING THE C++ MEMORY ALLOCATORC++ MEMORY ALLOCATORCUSTOM MEMORY ALLOCATORC++ CUSTOM ALLOCATORHOARD MEMORY ALLOCATORLOCK FREE MEMORY ALLOCATOR 7 June 2018 by Phillip Johnston • Last updated 21 April 2020. The memory library is developed by Jonathan Müller, a C++ library developer and author of foonathan::blog().This library provides an new STL-compatible C++ memory allocator called RawAllocator.The RawAllocator is similar to the standard Allocator but is easier to use. The library also provides a BlockAllocator type which can COURSES - EMBEDDED ARTISTRY Creating a Cross-Platform Build System for Embedded Projects with Meson. In this course, we provide a hands-on approach for learning to use Meson. You'll create a complex build system from scratch, learning the language as you go. We will teach you all of the necessary skills for managing complex projects that must support multiple processor STORE - EMBEDDED ARTISTRY 23 October 2019 by Phillip Johnston • Last updated 17 November 2020 Q&A: HOW DO YOU SELECT THREAD PRIORITIES TO IMPROVE 7 June 2021 by Phillip Johnston. Intended Audience: People who are interested in adjusting thread priorities to improve their system’s performance and/or responsiveness. RESOURCES - EMBEDDED ARTISTRY Embedded Artistry’s Collection of Useful Resources Whether you’re a beginner or an experienced engineer, we are collecting useful resources for you. Check out our collection of templates, take a look at libraries that we recommend, and get inspired for your next development kit purchase. Newsletter Subscribe to get access to programming tips, embedded news, interesting new parts, and other PROTOTYPING FOR PORTABILITY: LIGHTWEIGHT ARCHITECTURAL 20 January 2020 by Phillip Johnston • Last updated 21 April 2020Tom Anderson asked this excellent question in the Embedded.fm Slack group: Many designs start as feasibility investigations using Arduino and then move to a lower power or otherwise better embedded platform. Is there anything that these Arduino practitioners can do to make this transition Continue reading "Prototyping for CREATING A CIRCULAR BUFFER IN C AND C++ 17 May 2017 by Phillip Johnston • Last updated 14 April 2021Due to the resource constrained nature of embedded systems, circular buffer data structures can be found in most projects. Circular buffers (also known as ring buffers) are fixed-size buffers that work as if the memory is contiguous & circular in nature. As memory is Continue reading "Creating a Circular Buffer in C and BUILDING A FLEXIBLE LOGGING LIBRARY FOR ARDUINO, PART 2 6 January 2020 by Phillip Johnston • Last updated 21 April 2020A client asked me to write a logging library for a project using the Arduino SDK. Since the library will be open-source, I’m running an experiment. I will document the design, development, and feedback cycles on this project. I hope to expose readers to Continue reading "Building a Flexible Logging Library for Arduino, Part 2" JENKINS: GENERATING BLUE OCEAN URLS 28 December 2017 by Phillip Johnston • Last updated 21 April 2020I just finished setting up a Jenkins build server for a client. This client wanted to use Blue Ocean, the new attractive and streamlined user interface for Jenkins Pipeline projects. Once Blue Ocean is installed, users can switch between the standard Jenkins interface and Continue reading "Jenkins: Generating Blue Ocean URLs" DEMYSTIFYING MICROCONTROLLER GPIO SETTINGS 4 June 2018 by Phillip Johnston • Last updated 21 April 2020Updated: 20190913 Anyone who writes software for microcontrollers will have to configure and manage general purpose input/output (GPIO) pins. On their surface, GPIO configuration seems simple: pins are input or output, and they can be high or low. However, inevitably you will come across Continue reading "Demystifying C++11 FIXED POINT ARITHMETIC LIBRARY C++11 Fixed Point Arithmetic Library. When working with embedded systems, it’s not uncommon to encounter fixed-point mathematical operations. Many processors lack floating-point hardware support, resulting in inefficient software emulation of floating-point operations. Some situations require avoiding precision variability,and other
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EXPLORE THE FRONTIERS AND FOUNDATIONS OF EMBEDDED SYSTEMS DEVELOPMENT This website is for embedded systems developers who are dedicated to excellence and continual improvement. Finding high-quality embedded systems information is extremely challenging, even with the explosion in embedded devices being developed over the past decade. Our mission is to bring the state of firmware development out of the software dark ages by accelerating and enhancing the learning process for all embedded systems developers. NEW TO THE WEBSITE? START HERE!PUBLIC ACCESS
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