I am considering using CANopenNode to create a full SIIS2 stack, but before I jump into someone elses work I like to think through how and why I want CANopen build. Below is a simple UML diagram. This diagram lack Bootloader and Object Dictionary, but I simply created classes for each bulk of work that…
The industry around me is a heavy user of CANopen (SIIS2) which is the “Subsea” version of a CAN protocol. CANopen is similar to Modbus, but it offer more functionality. It is also a more complicated protocol stack that tend to cost from 5-15K USD depending on content. I have written CANopen protocols in the…
Many modern applications use custom theme/styles, but this is actually far more difficult to implement than you would expect on Windows. Windows have a lot of standard GUI components where you can control most, but not all colors and styles. So, if you want dark theme you either need to buy a library or start…
UML is a well accepted standard for modeling complex software solutions, but it has never reached executable accuracy. The standard lack a technique that allow executable logic, which is exactly what PLD does. This is key to having a tool with 1:1 between diagrams and code. I started modeling with Entity-Relationship Diagrams years ago, and…
Some of you will remember that I planned a “System Diagram” in Plain! That was a block of configuration code that tied event on modules together. This is exactly what I plan to use UML State Diagrams for. In this diagram we generate a Temp Changed event on one device that is sent to a…
Just showing a rude alpha version of the designer – I have yet to settle for a name I like. Notice the scroll bars on the diagram. Modifying Windows Scrollbar to dark theme is actually a bit of work. Windows Controls always leave out a few bits you can’t control per application, so getting a…
This costed me ca 400.- USD on a local shop, so I decided to try it out. The first thing is the visual look. FlashForge Finder 2 looks like a furniture and can easily be placed in a living room or office. One negative issue is the manual – it’s a bit short and it…
UML State Diagram is a standard, but I find it’s implementation into tools to be wage. So, I implement my own adaption because I intend to have a 1:1 with actual source code. This is not uncommon as most automation tools will have to make adaption in areas where executable accuracy is weak. I was…
Just showing a test diagram on the UML State Engine Designer I am making. It is stoll lots of work and details left, but progress is actually going fast the days I work on it. As for now this is just an experiment. A state engine can visualize some top level flow, but the details…
One of the big advantages with STM32 is that they have a range of MCU’s from the small M0 series to the more powerfully M7 series. Changing MCU to scale up/down is very easy. The MCU’s will have some differences in pin usage and register usage, but ST have been decently good at keeping their…