In my first post about Segger Ozone (see “First Steps with Ozone and the Segger J-Link Trace Pro“) I missed the fact that it includes support for kernels like FreeRTOS. So here is how to show the FreeRTOS (or any other RTOS) threads with Ozone:
freertos-threads-in-ozone
From time to time I face some problems which are really hard to find. Mostly these kind of bugs are very timing sensitive and depend on interrupt execution order. Maybe a dangling pointer is overwriting memory, code is running wild, or some functions are not reentrant as they should be. For these kind of bugs, good tools are worth their weight in gold. The Percepio FreeRTOS+Trace and the Segger SystemView have helped me many times to narrow down such kind problems in my applications. Another ultimate tools is hardware trace: Now I have a Segger J-Trace Pro for ARM Cortex-M in my arsenal of bug extinguishing weapons on my desk:
Dear bugs, look what I have on my desk. Your hiding time is over! š
tracing-cortex-m4-with-j-trace
Playing with RFID and NFC is definitely fun :-), and they are everywhere! For a research project I’m exploring different RFID tags and solutions. I several types around for a long time, but never found the time to actually work on it, so last nightI thought I give it a try, and I have it working with GNU ARM and Eclipse, powered by the NXP FRDM-K64F board š
NXP NFC PN7120S with a FRDM-K64F Board
This tutorial goes through the steps how to create a blinking LED application, using Kinetis SDK and Processor Expert, using the TWR-KL43Z48M board from Freescale (now NXP):
twr-kl43z48m
The first enclosure for the INTRO robot remote controller board (see “INTRO Robot Remote ā First Production PCB“) is ready, and it is looking good:
Enclosure for the Remote Controller Board
A week ago I asked: what you would like to see next on this blog? Thank you all for your reaction and comments! To me, the result is interesting:
Poll Results
Time for a new major update of the McuOnEclipse components, with the fillowing main features and changes:
SourceForge
I’m using the Segger SystemView in many of my applications to get insights of the running application. A reader of my blog pointed me to the company ‘toem’ (http://toem.de/) based in Germany which offers powerful data viewer (‘impulse’) for Eclipse. I have tried this out, and it is really an amazing piece of technology with lots of potential. It allows me to view Segger SystemView data š
Segger SystemView Data in Eclipse
I’m using the NXP Pins tool (see “Tutorial: Muxing with the New NXP Pins Tool“) now in several projects, and I think it is time to share a few tips and tricks.
Pins Tool
So join me on a journey through the internals of the NXP Pins tool :-).
Breakout boards are great: they allow me to explore functions quickly, without to build my custom board: all what I need is some wires and ideally a bread board.
Adadfruit MicroSD Card Breakout Board
