The spring university semester is coming to an end, and the Infotronic course closed with a Sumo robot challenge. Great challenge, new technologies, innovative approaches and funny designs 🙂
Groot
2017 Spring Semester Sumo Challenge
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Category Archives: Kinetis
MCUXpresso IDE: Terminate and Disconnect a Debug Session
Eclipse for C/C++ (CDT) offers two different ways to get out of a debug session: Terminate and Disconnect:
Terminate and Disconnect
The terminate and disconnect behaviour is not standardized, and varies between Eclipse distributions and debug connection. This article is about how things are handled in MCUXpresso IDE, and how I can influence the behaviour.
McuOnEclipse Components: 06-May-2017 Release
I’m pleased to announce that a new release of the McuOnEclipse components is available in SourceForge, with the following changes and updates:
- SEGGER SystemView updated to V2.42
- More components to work with MCUXpresso SDK: GenericSWSPI, FXO8500 and SimpleEvents
- SSD1351 display driver supports 128×128 pixel resolution and Adafruit 1.5″ breakout module
- Extended FreeRTOS debug helper settings
- GenericI2C: added ReadWordAddress8() and ReadWordAddress8() functions
- RingBuffer with new Getn() and Update() functions
- Utility with map(), constrain(), random() and randomSetSeed()
- XFormat: new xsnprintf(), contributed by Engin Lee
- OneWire protocol component with Maxim DS18B20 temperature sensor
- Many smaller bug fixes and enhancements
SourceForge
Using Eclipse to Program Binary Files to an Embedded Target
I’m using Eclipse based IDE’s to develop and debug my embedded applications. This works great, as Eclipse has all the necessary tools to edit, build and debug it. But when it comes just to download/flash a binary to the board, then things are pretty much specific to the tools used. With the advent of the new MCUXpresso IDE, here is how that Eclipse IDE can be used for this.
LinkServer GUI Flash Programmer
Using the LPCXpresso V2/V3 Boards to Debug an external Board
The MCUXpresso IDE (see “MCUXpresso IDE: Unified Eclipse IDE for NXPs ARM Cortex-M Microcontrollers“) has one great feature: it includes debug support for the popular LPC-Link2 debug probes. That way I have yet another powerful debug probe with extra features for ARM based boards. That LPC-Link2 circuit is present on many LPCXpresso boards from NXP. So why not using it to debug it my custom hardware?
Debugging Custom Hardware with LPCXpresso Board
Modifying the Teensy 3.5 and 3.6 for ARM SWD Debugging
Looking for a small, inexpensive ($25-30) ARM development board (say 120-180 MHz ARM Cortex-M4 with FPU, 512kB-1MB of FLASH and 256 KByte of RAM? Then have a look at the Teensy 3.5 and Teensy 3.6 by PJRC/Paul Stoffregen:
Teensy 3.5 with NXP K64F ARM Cortex-M4F
The only problem? it is not possible to debug it :-(. At least not in the traditional sense. This article is about how to change the board to use it with any normal SWD debugging tool e.g. Eclipse and the Segger J-Link :-).
Tuturial: mbedTLS SSL Certificate Verification with Mosquitto, lwip and MQTT
In “Tutorial: Secure TLS Communication with MQTT using mbedTLS on top of lwip” I already used TLS for a secure communication, but I had not enabled server certificate verification. This article is about closing that gap.
Secure MQTT running on NXP FRDM-K64F with lwip and mbed TLS
Tutorial: Secure TLS Communication with MQTT using mbedTLS on top of lwip
One of the most important aspects of the ‘IoT’ world is having a secure communication. Running MQTT on lwip (see “MQTT with lwip and NXP FRDM-K64F Board“) is no exception. Despite of the popularity of MQTT and lwip, I have not been able to find an example using a secure TLS connection over raw/native lwip TCP :-(. Could it be that such an example exists, and I have not found it? Or that someone implemented it, but has not published it? Only what I have found on the internet are many others asking for the same kind of thing “running MQTT on lwip with TLS”, but there was no answer? So I have to answer my question, which seems to be a good thing anyway: I can learn new things the hard way :-).
Block diagram MQTT Application with TLS using lwip
MQTT with lwip and NXP FRDM-K64F Board
In the area of IoT (Internet of Things), one obvious need is to have a way to send and receive data with an internet protocol. MQTT (or Message Queue Telemetry Transport) is exactly like that: a light-weight Machine-to-Machine communication protocol. With the MQTT protocol a microcontroller (or ‘client’) can send data and/or subscribe to data. For example to the Adafruit.IO:
Adafruit MQTT IO Feed
MCUXpresso IDE: Importing Kinetis Design Studio Projects
Many of my currently active projects are using Kinetis Design Studio (KDS) V3.2.0 from NXP (I have published many of my projects on GitHub). Now with the advent of the MCUXpresso IDE (see “MCUXpresso IDE: Unified Eclipse IDE for NXPs ARM Cortex-M Microcontrollers“), I have migrated several projects from KDS to MCUXpresso. This post is about how to easily get KDS projects ported and running in MCUXpresso IDE.
Debugging KDS Project in MCUXpresso IDE
MCU on Eclipse 