The MCUXpresso Pins Tool is part of the NXP configuration suite which makes pin assignments, configuration and muxing easy. What I have somehow missed from one of the latest updates and releases is that it allows me now to add my own custom headers definition. Not only the tool is now aware of the ‘standard’ Arduino headers, but I can add my own headers too. This can be useful for providers of breakout boards or any kind of board which can be added to a MCU board. In my case it is very useful for projects where we design our own (breadboard-friendly) board or a custom board with an expansion board: we can design a board header and use it in other projects.
Split-flap displays are electromechanical display devices, which were common in airports or railway stations a few years ago.Unfortunately, most of them are gone and replaced by LED displays. Why not create a DIY version of it?
For more than two years I’m using the NXP LPC845 in my university courses. Beside of that it is used in many projects. First, because the LPC845-BRK board is small, breadboard friendly and inexpensive. Second, for many small projects that Cortex-M0+ provides just the right amount of processing power and memory.
If you search for ‘LPC845’ on my blog, you will find many articles about it. We are using the LPC845 in a research project, and one developer asked me why the LPC845 seems to run slower than expected. And I was sure that I wrote already an article about this, but to my disappointment: even Google did not find it? So complete this unfortunate gap, here is it: how to optimize the LPC845 and running it at full speed, with the hand-brake released.
One of the most frustrating part developing embedded applications is if the debug connection fails somehow: with all the different factors like operating system, virtual machines, USB ports and hubs, debug probe and firmware a ‘connection failed’ is my nightmare. And this is probably the most frustrating parts for my students (and myself!)
Something what I say quite often is: “Google is your friend”. It means that the answer to many questions can be found with an internet search engine. And I have to admit that I have to ‘google’ my own articles to find solutions for problems I feel I have seen in the past too :-).
But for the one problem below I did not find anything: not on my own blog, and not anywhere else in the internet:
As promised I’m going to share more details about the “60 Billion Lights” project. It is about a project to build a piece of electronics behind a 100×50 cm canvas to show animations or to display information like temperature, humidity, weather, time or just any arbitrary text.
FreeRTOS is pretty much everywhere because it is so simple and universal, and it runs from the smallest to the biggest systems. But it still might be that for the microcontroller device you have selected there is no example or SDK support for it from your vendor of choice. In that case: no problem: I show how you could easily add FreeRTOS plus many more goodies to it.