Extended Inline Assembly with Kinetis Design Studio

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Extended Inline Assembly with Kinetis Design Studio

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Extended Inline Assembly with Kinetis Design Studio

Hello KDS users!


Nowadays assembly language is being eradicated for embedded systems, and other alternatives such as C/C++ are widely used.


However we know sometimes it becomes necessary to get to "the bones" of our MCU, even from a C project, and play directly with its registers and status flags. Some use cases are:


- Startup code

- Bootloaders

- Time critical routines

- Benchmarking


It is common to include assembly code using the "__asm()" style. But what if I want to use my C variables in the assembly code? or if I want to call an assembly subroutine from a C project? We can do this in Kinetis Design Studio, which comes with GCC tools preinstalled.


The attached document is an overview and explanation of this extended assembly feature. Also I am including a pair of example projects developed in KDS v1.1.1, for the KL25Z128 and K60DN512 devices.


Thanks to Abigail Inzunza Lopez, who helped with this.


I hope you find this useful !

Labels (1)

Hello Eli Hughes:

Those are good resources indeed. Thanks for sharing!

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Last update:
‎09-30-2014 01:25 PM
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