Category Archives: CodeWarrior

Make my Make with Eclipse and MCU10

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I mentioned in Go Reference that MCU10 and eclipse come with a comfortable infrastructure: you add, remove, rename source files and set compiler options: managed make will take care and creates the make files for you. Make files are such a great thing because they allow you do to pretty much everything.

Classic CodeWarrior uses a different approach without make files. Exporting the project as make file did not really work, so make files were not something you could have used easily in classic. With the eclipse based MCU10 make files are the heart of the build system. In most cases using the managed make system is perfectly fine. But for a bare metal enthusiast it makes sense to use my own make file instead.
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Back to Classic: FreeRTOS for Freescale S12(X)

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One thing which is missing with the CodeWarrior for MCU10.2 announcement: MCU10.2 does not support the S12(X) from Freescale.

With this I still have several projects not ported to eclipse. So they are still implemented using the ‘classic’ (non-eclipse based) version of CodeWarrior for S12(X). And I’m using FreeRTOS in the eclipse based IDE with Processor Expert for S08, ColdFire and Kinetis, but not yet for the S12(X). What now?
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Go Reference! Or: Subprojects in eclipse and MCU10.2

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I admit: I’m a big fan of eclipse.
But there is one thing I have missed from the ‘classic’ non-eclipse CodeWarrior for MCU: the ability to create hierarchical builds with subprojects.

It was sooooo simple and easy in classic CodeWarrior:

  • I need to build a batch of projects in one step?
    I have it organized as subprojects, and go!
  • I need a boot loader library included with my project, build it as part of my application build, plus I want to re-build my custom ANSI library for the small memory model?
    I have it included as subprojects, set it up to be linked with my application project, done!

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MCU10.2 is here! Or: 4 t-shirts in 13 weeks…

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CodeWarrior for Microcontrollers V10.2 has been released and is available for download from the Freescale MCU website!

CodeWarrior for MCU 10.2 Startup Screen

CodeWarrior for MCU 10.2 Splash Screen at Startup

In my view the V10.2 is a big step forward. Nothing is perfect, nor is V10.2. But V10.2 is so much better compared to the V10.1 release. Yes, indeed continuous improvements. Here is why…..
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Show me your files, lib!

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Getting to the details is my natural engineering passion, see memory is everything. The same applies for building my embedded application: you should know what you pack into your binary file.

One aspect of this are the libraries. The linker does the heavy lifting, but still I want to know the details, right? In CodeWarrior for MCU, things are a little bit different for the 8/16bit tools (HCS08 and RS08) compared to Kinetis, ColdFire, DSC and Qorivva: the format for the libraries is not the archive (*.a) format. Therefore, I cannot use the usual command line tools like readelf, objdump or elfdump available in the GNU Binutils to inspect the libraries. The good news is: there are other good ways to get the information I need :-).
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Go, assembly, go!

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As mentioned in my post about the memory view:  I want to go down to the bits and bytes. Same applies to programming: I want to get down to the assembly instruction level, the heavy metal world :-).

Although it sounds a little bit weird in the age of object-oriented programming and C++, but sometimes I need to do ‘assembly level only’ programming on a 32bit controller too. CodeWarrior for MCU offers assembly only project creation for all the 8bit microprocessors, but for the 32bit including the ColdFire it assumes that the usual way is to use C and C++? Yes, it offers C and C++ and you can add assembly files. But how to do assembly only?
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