When I first used TDD I read James Grenning’s book Test Driven Development for Embedded C. In this book James proposed following a pattern for developing tests to test for zero, then one and then many (ZOM). Recently he has developed this idea further into ZOMBIE testing. Z – Zero O – One M – Many...
CODESYS for UniPi 1.0.2.0 is available for download from the CODESYS store.Changes:Addition of support for digital inputs I13 and I14 using a custom cable. Enhanced support for one wire expansion modules giving better behaviour on comms or power failure to the module.
Introduction I like to use test driven development, currently my preferred framework is googletest. When I came to use eclipse CDT with the MinGW toolchain I found I had lots of little issues to get over to achieve what I wanted, namely a rapid TDD environment that I could also build from the command line...
I have been looking for a way to manage the execution of Jenkins jobs that require exclusive access to a resource other than the Jenkins slave it is being built on. Let's consider two scenarios that can cause problems.Shared Physical ResourceWorking with embedded systems I often want to run tests on an embedded device as...
This post is a primer on how to get started with using the Camera in CODESYS on the Raspberry Pi. The content of the post is taken from a mix of the CODESYS documentation and from reverse engineering sample projects. Configuring the Raspberry Pi Plug the Camera in to the connector labelled CAMERA on the...
I want to get a CI system setup at home and decided to try getting Jenkins up and running on a Raspberry Pi 2. My starting point is the latest Rasbian distribution, I have fixed the IP address of this Raspberry PI at 192.168.0.34. NOTE: I initially tried just installing jenkins from Rasbian, with sudo...
In this post I look at how to drive the PiFace Digital 2 card with CODESYS. The post is aimed at CODESYS beginners. The PiFace Digital 2 is provides 8 open collector digital outputs with LED indicators (two of which also drive changeover relays) and 8 digital inputs, four of the inputs are in parallel...
Up to this point I have been using wired ethernet, tonight I decided to try with a wireless adapter. First I followed the instructions here to get the Raspberry PI on my home network. https://www.raspberrypi.org/documentation/configuration/wireless/ Then I tried scanning for the device from CODESYS with no luck. I couldn’t ping the Raspberry PI from my PC,...
This post is intended for those who have never generated any graphics using CODESYS. CODESYS has a built in fully integrated visualization system. I have started by creating a very simple new CODESYS program using ST as the programming language. Next step is to add a blank visualization as shown below I name the new...
NOTE THIS POST IS OUT OF DATE. Please see starting-with-codesys-on-raspberry-pi I’ve finally decided to give CODESYS a try on the Raspberry PI. This post tracks what I had to do to get CODESYS functioning, I’ll post more on sample projects in the future. First of all, my setup: I’m running a fresh install of Windows 8.1...