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Creating CMSIS dsplib for use with stellaris launchpad

Donald Reay
Expert 1545 points

Hi,

I've run into a problem creating the CMSIS dsplib library. I am using the stellaris launchpad. I have successfully run programs on the launchpad and want to use the floating point dsp functions in the CMSIS library.

I followed the instructions in document SPMA041B "Using the CMSIS DSP Library in Code Composer Studio for Stellaris"  but when it came to section 3.4 Editing the dsplib project settings, I don't see any reference in my properties to a TMS470 compiler. I see an ARM compiler. All of the compiler/linker property options mentioned in the document could be set for the ARM compiler and so I pressed on. but when it came to building the project I got a "can't open cmsis_ccs.h" error. I can't see a cmsis_ccs.h file anywhere. What am I doing wrong?

Regards,

Donald

  • 0
    Guru 26105 points

    Hi,

    You need to download the package spma041.zip and after unzipping you will find the file in the /include folder.

    Petrei 

  • 0 in reply to Petrei
    Expert 1545 points

    Thanks for the fast reply. I have downloaded  and installed the file you mention and then replaced the include folder (C:\CMSIS\include). Now I am getting lots of errors when trying to build , e.g. "declaration is incompatible with previous "arm_radix2_butterfly_f32" (declared at line 162)" in arm_cfft_radix2_f32.c.

    I am concerned that, as I mentioned, I see no TMS470 compiler in the properties of my dsplib-cm4f project.

    Regards,

    Donald

  • 0 in reply to Donald Reay
    Guru 26105 points

    Hi,

    You must add yourself this section, if i remember well, it has some words about that in spma041B.pdf. I will check also this a little bit later.

    Petrei

  • 0 in reply to Petrei
    Expert 1545 points

    Thanks again for your help. I'm not quite sure what "section" you're referring to.

    Donald

  • 0 in reply to Donald Reay
    Guru 26105 points

    Hi,

    It seems I had a previous version of this software - it was as described in paragraph 3.1 - so I had to modify myself those files. Now they already OK, so spma041 is a little bit outdated (I was referring to those containing __TMS470__) . Now a second question - what CMSIS version do you use? I'm using v2, and i cannot find any file " arm_cfft_radix2_f32.c", all *radix* files are *radix4* in my folders.

    Petrei

  • 0 in reply to Petrei
    Expert 1545 points

    Hi,

    I am not sure what version of CMSIS I am using. I realise that's not a very useful answer and I will try to find out. Certainly in C:\CMSIS\dsplib\source\TransformFunctions I have both radix2 and radix4 .c source files. I will try downloading CMSIS again and see if I can get a different version.

    In the mean time, I found the dsp library already compiled for the stellaris launchpad http://euphonistihack.blogspot.co.uk/ and I have been able to use this successfully and the pressure to compile the library myself is therefore less.

    Regards,

     

    Donald 

  • 0 in reply to Petrei
    Prodigy 10 points

    I'm having the same problem. Where can I find the spma041.zip package?

    Thanks.

  • 0 in reply to Richard Chorley
    Guru 26105 points

    Hi,

    Try this link - if it is not working then from application note, first paragraph it is the link there. The original link seems not to be available.

    Petrei