The ‘Black Magic Probe’ (or in short: BMP) is a very small and open source JTAG/SWD debug probe with a build-in GDB Server. I saw that probe referenced in different places, so I thought I try it out with a few of my NXP LPC and Kinetis boards:
BMP with LPC and Kinetis Boards
A few days ago NXP has released a new version of their Eclipse IDE flagship: the MCUXpresso IDE v11.0.
NXP MCUXpresso IDE V11.0.0
The previous v10.3.1 was released back in Feb 2019, and the 11.0 now in June this year matches up with the Fall university semester. I appreciate that the releases are about every 6 months, so this gives me time to use it in my university lecture material and lab work. I had the weekend for trying it out, and I’m very pleased.
Seefeld in Tirol/Austria is a beautiful hiking region, northwest of Innsbruck. Nearby there is a beautiful hike around the Brunschkopf (1510m) with views to three lakes. But most of them may appear only now and then.
Lottensee
It can be the small things which can make me wonder. While hiking up a trail up to a mountain, a snail in the middle of a tree trunk had my attention. A beautiful coiled shell!
Snail on a trunk
Now I can tell the truth: the hidden goal of this color posts is to check if I’m color blind or not (and you can check the same :-). After the lilac collection, here is the last one: this time the color is yellow, and includes a small trap.
After the ‘blue‘ series, here is yet another hicking flower color collection: Lilac!
After the ‘green‘ one, here is another impression from my recent hiking tours in the Alps: this time a combination of brown, green and blue.
The one below is the Gentiana Verna (or Spring Gentian). It is rather small and widespread, found on sunny alpine meadows.
Gentiana Verna Group
Impression from one of my recent mountain hiking tours: Mountain spring water flowing slowly through grass meadows, building a symbiosis with green algae. Maybe a camera cannot reflect the number of green colors the human eye is able to see?
Green Algae Composition
Happy Greening 🙂
With the cost of an single pin, many ARM Cortex-M boards including the NXP i.MX RT1064 can produde SWO data: think about a pin able to stream data out of the chip in realtime. For example interrupt activity which otherwise might be hard to capture:
SWO Interrupt Trace
Having access to a laser cutter makes it possible to design custom enclosures. This one is for a Raspberry Pi in a Steampunk design:
Steampunk Enclosure
The ‘Internet of Things’ is coming! It started as an overused marketing hype with no real use case (who needs internet connected fridges? Who wants the internet connected toilet paper?).
New ‘things’ start to pop up, useful or not: From smart bulbs (Philips Hue), thermostats (Nest), smart TV (Samsung and others) up to voice assistants (Alexa, Cortana, Google). You might even have installed one of these, right? What about temperature and humidity sensors? Probably there is nothing wrong with that?
But what would you think if one morning you find a strange unknown device installed under your working desk, connected to the cloud and internet?
IoT Device attached under a working desk
In a modern development workflow both command-line and a graphical user interface has its place. On the GUI side, Eclipse is famous that it offers many different ways to accomplish something which is great. But sometimes I continue to use an old habit or way because I have missed that there is a newer and better way, and the MCUXpresso Eclipse IDE is no exception to that. In this article I show a few ways how to use the mouse even more productive.
Project Settings
I like the Crataegus or ‘Hawthorn’. The small white flowers of the white variant are not really spectacular alone, but together they build a beautiful ensemble:
Weissdorn (click to enlarge)
The Hawthorn provides food and shelter for many birds. And according to legends, they are associated with fairies.
Happy Flowering 🙂
In my previous articles I have used the command line on Linux to build and debug NXP MCUXpresso SDK applications. In this article I’m running code on NXP i.MX RT1064 in RAM or FLASH.
i.MXRT1064 board with LPC845-BRK as debug probe
The LPC55S69-EVK board comes on-board debug probe. The board includes the LPC4322JET100 device which acts like NXP LPC-Link2 debug probe:
LPC4322JET100 on LPC55S69-EVK
But it is easily possible to use the board with an external debug probe or re-program the onboard one as a SEGGER J-Link debug probe.
There are different ways to ruin a Linux system. For the Raspberry Pi which uses a micro SD card as the storage device by default, it comes with two challenges:
For problem one I do I have a mitigation strategy (see “Log2Ram: Extending SD Card Lifetime for Raspberry Pi LoRaWAN Gateway“). Problem two can occur by user error (“you shall not turn it off without a sudo poweroff!”) or with the event of a power outage or black out. So for that problem I wanted to build a UPS for the Raspberry Pi.
Raspberry Pi with UPS System and tinyK22
The ARM TrustZone is an optional secu=rity feature for Cortex-M33 which shall improve the security for embedded applications running on microcontroller as the NXP LPC55S69 (dual-core M33) on the LPC55S69-EVK.
NXP LPC55S69-EVK Board
For the long Easter weekend I have organized a new toy: the NXP LPC55S69-EVK board: a dual ARM Cortex-M33 running at 100 MHz with ARM TrustZone:
LPC55S69 Microcontroller
The long Easter Weekend has its benefits, beside of preparing lecture material and writing up geeky technology articles :-). I love that view with meadows sprinkled with all the Dandelion, and the snow-covered mountains in the back. Back on the left the peaks of the Mythen.
Talkessel Schwyz (click to enlarge)
In “Tutorial: MCUXpresso SDK with Linux, Part 1: Installation and Build with Maked” I used cmake and make to build the SDK application. In this part I’m going to use the command line gdb to debug the application on the board.
Cross-Debugging with GDB
