How expensive in terms of code size are floating-point operations if the CPU does not have an floating-point unit (FPU)? In this article, I will investigate, based on Embedded Studio for ARM and a generic Cortex-M3 device, how big (or small) an entire application using basic float operations, add, sub, mul, and div, can be. […]
Posts in the Embedded Software category:
Every byte counts – Smallest “Hello world”
When searching on-line for small C-programs, there seems to be a lot of confusion about what is doable and what is not. There are a lot of posts wondering why even for minimal programs such as “Hello world” applications are so big, but not many explanations or fixes. I will show how to make a […]
Extending AppWizard-generated GUIs with emWin Widgets
AppWizard is a great tool for designing GUIs with our emWin embedded graphics library. Features like the intuitive editor, the integrated resource management, and the ability to add behavior to the screen objects by adding interactions make it easy to get started with emWin. But you can create even more advanced graphics solutions by extending […]
How to do Gauges in AppWizard – Part II
Recently, we at SEGGER released AppWizard, our new GUI design tool for our emWin embedded graphics library. It is now available as part of the emWin PRO package (v6.10 and later). In Part I of this blog article, I showed how to create a very common type of gauge – a circular gauge – by […]
How to do Gauges in AppWizard – Part I
Recently, we at SEGGER released AppWizard, our new GUI design tool for our emWin embedded graphics library. It is now available as part of the emWin PRO package (v6.10 and later). The initial version of AppWizard contains a variety of objects and widgets, such as sliders, rotaries, images, switches, buttons, and more. Getting started with […]
Finding the right (Q)SPI Flash for your project
Not all SPI Flashes are created equal SPI Flashes have become very popular as an inexpensive way to add nonvolatile storage (flash memory) to an Embedded System. They come in various capacities, so increasing memory is fast and easy. Any microcontroller can interface to them via SPI or QSPI peripheral interfaces, or simple general purpose […]
IoT Station#1 Launched (using emMQTT)
Here’s more of “What’s cooking at SEGGER”. We were looking for a quick and easy way to demonstrate an integration of SEGGER’s software libraries, embOS, emNet, emSSL, emMQTT and the IoT Toolkit, with IoT cloud services, such as Amazon Web Services (AWS). Having the idea, the software, the hardware, and the expertise, all we needed […]
Using AppWizard to create interesting buttons
In my previous post, I described how to make a nice knob / dial using the SEGGER AppWizard. This time it’s all about creating some cool buttons. The AppWizard Button Widget The AppWizard, SEGGER’s new, still-under-development GUI builder tool, offers a variety of widgets. One of the is the Button widget. It allows adding a […]
Creating a cool knob using the SEGGER AppWizard
This article documents the process of creating a decent-looking knob for an embedded GUI, using the new SEGGER AppWizard, which – at the time of this writing – is still under construction. I describe the hunt for suitable graphics, the tools I used to adapt them to meet my needs, and how I ended up with […]
New office, more plans!
Things at SEGGER have been slower for the past three months or so. Or at least it may seem like that from the outside. There are two main reasons for this. First, we had a great summer and vacation season in Germany (as in most of Europe). Secondly, we have been busy planning, supervising construction […]