Author Archives: Martin Bond

About Martin Bond

An independent IT trainer Martin has over 40 years academic and commercial experience in open systems software engineering. He has worked with a range of technologies from real time process controllers, through compilers, to large scale parallel processing systems; and across multiple sectors including industrial systems, semi-conductor manufacturing, telecomms, banking, MoD, and government.

CMake Part 2 – Release and Debug builds

In my previous blog post CMake Part – The Dark Arts I discussed how to configure CMake to cross-compile to target hardware such as our STM32F407 Discovery board.

We looked at the minimum requirements to configure the CMake build generator for a cross-compilation project using a project definition file (CMakeLists.txt), a toolchain definition file (toolchain-STM32F407.cmake). The CMake commands used to generate and build the project are:

cmake -S . -B build -DCMAKE_TOOLCHAIN_FILE=toolchain-STM32F407.cmake
cmake –build build

In the real world, projects are never as simple […]

Posted in ARM, Build-systems, C/C++ Programming, Cortex, General, Toolchain | Tagged , | 3 Comments

CMake Part 1 – The Dark Arts

In our previous post Why We Need Build Systems we examined the need for Build Systems in modern software development. In this post we will examine how to use CMake to mange the build process for a cross compilation project.

CMake can be described as a marmite application: you either love it or hate it. Here at Feabhas, we find ourselves falling in the latter category, despite the fact the CMake is widely used within the embedded and deeply embedded development […]

Posted in ARM, Build-systems, C/C++ Programming, Cortex, Toolchain | Tagged , | Leave a comment

Why We Need Build Systems

Build systems were developed to simplify and automate running the compiler and linker and are an essential part of modern software development. This blog post is a precursor to future posts discussing our experiences refactoring the training projects to use the CMake build generator.

Using Build Systems

Build systems can be standalone command line applications such as  Make, Scons and Ninja; or part of an (Integrated Development Environment IDE) like Visual Studio , XCode or IAR Workbench.

Configuring build systems for a project […]

Posted in Build-systems, C/C++ Programming, Toolchain | 8 Comments

Python 3 File Paths

If you’ve used Python for a while you will probably be familiar with the os module for working with files and directories; often called pathnames by Linux users. In moving to Python 3 you may continue to use the same os and os.path functions from Python 2.7, however a new pathlib module provides an alternative object-oriented (OO) approach.

In this posting, we examine the common file handling situations; comparing the OO approach of pathlib against the procedural approach of os functions.

Current […]

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Python 3 Unicode and Byte Strings

A notable difference between Python 2 and Python 3 is that character data is stored using Unicode instead of bytes. It is quite likely that when migrating existing code and writing new code you may be unaware of this change as most string algorithms will work with either type of representation; but you cannot intermix the two.

If you are working with web service libraries such as urllib (formerly urllib2) and requests, network sockets, binary files, or serial I/O with pySerial  […]

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Python 3 Type Hints

The expected end of support for Python 2.7 is 1st January 2020, at least according to Guido van Rossum’s blog post. Starting now, you should consider developing all new Python applications in Python 3, and migrating existing code to Python 3 as and when time and workload permit.

Moving to Python 3

If you are unaware of the changes introduced in Python 3 that broke backward compatibility with Python 2 then there is a good summary on this What’s New In Python […]

Posted in Python, Python3, Testing | Leave a comment