Sometimes it happens that arm-none-eabi-gdb complains about “no source file named” in the GDB console view in Eclipse when I debug a project with GDB:
No Source File Named in GDB Console
Solving “No source file named …” in Eclipse and GDB
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Category Archives: NXP
Custom 3D Printed Enclosure for NXP LPC-Link2 Debug Probes
I love 3D printing as it enables me to create custom enclosures for all kind of projects. The NXP LPC-Link2 probe is great, but it lacks a protective enclosure. So I decided to create a custom enclosure. And as 3D filaments are available in different colors, I experimented with red and black and custom painting:
lpc-link2 enclosure
Troubleshooting Tips for FreeRTOS Thread Aware Debugging in Eclipse
FreeRTOS seems to get more and more popular, and I think as well because more and more debugger and Eclipse IDE vendors add dedicated debugging support for it.
FreeRTOS Threads in Eclipse
EmbSysRegView 0.2.6 for Eclipse Neon and Oxygen
Good news! There is an updated version of the EmbSysRegView v0.2.6 available which works now for Eclipse Neon and Oxygen :-).
EmbSys
How to use Custom Library Names with GNU Linker and Eclipse
By default, the GNU Linker expects a very special naming scheme for the libraries: the library name has to be surrounded by “lib” and the “.a” extension:
lib<NAME>.a
But what if the library I want to use does not conform to that naming standard?
Non-conforming Library Naming
Tutorial: Makefile Projects with Eclipse
The benefit of an IDE like Eclipse is: it makes working with projects very easy, as generates make files and it takes and automatically manages the make file(s). But sometimes this might not be what I want because I need greater flexibility and control, or I want to use the same make files for my continues integration and automated testing system. In that case a hand crafted make file is the way to go.
One thing does not exclude the other: This article explains how to use make files with Eclipse with similar comfort as the managed build system in Eclipse, but with the unlimited power of make files:
Makefile Project with Eclipse
MCUXpresso IDE v10.0.2 – Updated Eclipse based IDE for LPC and Kinetis
NXP has released an updated of their Eclipse based IDE for ARM Cortex-M (Kinetis and LPC) microcontroller: the version v10.0.2 build 411:
MCUXpresso v10.0.2 build 411
Getting Started: ROM Bootloader on the NXP FRDM-KL03Z Board
A bootloader on a microcontroller is a very useful thing. It allows me to update the firmware in the field if necessary. There are many ways to use and make a bootloader (see “Serial Bootloader for the Freedom Board with Processor Expert“). But such a bootloader needs some space in FLASH, plus it needs to be programmed first on a blank device, so a JTAG programmer is needed. That’s why vendors have started including a ROM bootloader into their devices: the microcontroller comes out of the factory with a bootloader in FLASH. So instead writing my bootloader, I can use the one in the ROM.
FRDM-KL03Z with ROM Bootloader
And as with everything, there are pros and cons of that approach.
Using FreeRTOS with newlib and newlib-nano
For reliable applications, I avoid using functions of the standard libraries. They are banned for most safety related applications anyway. I do not use or avoid malloc(), printf() and all the other variants, for many reasons including the ones listed in “Why I don’t like printf()“. Instead, I’m using smaller variants (see “XFormat“). Or I’m using only the thread-safe FreeRTOS heap memory allocation which exist for many good reasons.
Things get problematic if malloc() still is pulled in, either because it is used by a middleware (e.g. TCP/IP stack) or if using C++. Dave Nadler posted a detailed article (http://www.nadler.com/embedded/newlibAndFreeRTOS.html) about how to use newlib and newlib-nano with FreeRTOS.
FreeRTOS Newlib Memory Allocation Scheme
First Steps with the Variscite DART-6UL i.MX6 UltraLite Development Kit
For a next-gen course I’m evaluating different platforms, and one of it are modules based on the NXP i.MX ARM architectures. In this article I have a look a the Variscite DART-6UL development kit which includes the NXP i.MX6Ultralite ARM Cortex-A7 plus a 7″ capacitive touch LCD:
Variscite VAR-DVK-6UL_LO Kit
MCU on Eclipse 