Pre-compiled CMSIS-DSP about cmsis-dsp HOT 5 CLOSED

@jasonrandrews @pentagon0024 Thanks for asking.

We no more release pre-compiled versions because there were too many versions of the library to maintain and validate.

The README on the main page is giving detailed instructions for different way to build: https://github.com/ARM-software/CMSIS-DSP

If it is not enough then tell me what's missing or not clear and I'll improve.

I am covering cmake, CMSIS build and CMSIS Pack to build.

I am not (yet) covering Make.

For Make it is really simple, in each CMSIS-DSP folder you'll see a file without any datatype suffix. Let's take BasicMathFunctions as example, you'll see a file : BasicMathFunctions.c

Just use this file : it is including all other .c from the BasicMath folder.

So, in your makefile you need only a very small number of files and the Include and PrivateInclude folder.

Since there is now a dependency to CMSIS Core (as explained in the README), you now also need to add to the includes the Core/Include folder from CMSIS_5 project.

That's all. Then for building it is as usual : ensuring hardware float are used, an option like -O3 or -Ofast. With gcc, avoiding some options which are preventing important optimizations (like -fno-builtins).

If you really want to revalidate your build, the easiest is to use CMSIS build to build the test framework. I'll need to improve documentation on this part if people really want to run the test framework. But I don't think you should have any problem even if you don't run the test framework again.

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I have added an example Makefile in folder Source.

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I second this request, as a developer working on Linux it would be a big help. If release of a library is not possible, improved instructions to build a library would be helpful.

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@christophe0606 Thank you for so quick response!

Thank you very much for the explanation, Makefile is extremely helpful - it is clear for me now all the dependencies to build a library.

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@christophe0606 Christophe, great work, much clearer now.

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