topic Re: How to link .a files in MDK in Kinetis Microcontrollers

How to link .a files in MDK

jajaer — Fri, 09 Jun 2017 09:19:41 GMT

Hi ：

I try to transfer the bldc project in codewarrior to Keil,and I just found the ".a" files in the machine library after the installation; So in MDK,I change the complied environment with GCC,then I start to link these .a files,but there is always a problem with connectivity.

In keil Options for target,In Linker I did the following settings,libbldc is libbldc.a, add the link and compile the error shown above picture. What should I do to slove the problem of the .a link?

Thank u;

Re: How to link .a files in MDK

kerryzhou — Mon, 12 Jun 2017 04:38:56 GMT

Hello Eric,

Please try to modify include libraries from libblcd to blcd, then try again.

Besides, you should make sure, libblcd.a in the folder:

Then try again.

If you still can't find lib, please let me know!

Have a great day,
Kerry

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Re: How to link .a files in MDK

vigneshbalaji — Mon, 12 Jun 2017 05:31:04 GMT

Hi Eric,

Are you using Keil MDK?

Re: How to link .a files in MDK

jajaer — Mon, 12 Jun 2017 09:25:56 GMT

Hello Kerry,

According to your method,I change the name of the .a file,but I think this just a name for the .a file,as long as the corresponding path file exists;also ,I checked the relevant folder where the bldc.a file resides;

but the result of build is the same as before...

And ,Does this have something to do with my gcc compiler?

Re: How to link .a files in MDK

jajaer — Mon, 12 Jun 2017 09:32:47 GMT

Hi Vignesh,

I'm Sure,in Manage Project Items->Folders/Extensions->use GCC compiler for ARM project;if choose 'Use ARM Compiler', then in Linker I think there should be to link '.lib' files..

Re: How to link .a files in MDK

kerryzhou — Mon, 12 Jun 2017 09:49:20 GMT

Hello Eric,

I think it is relate to the MDK gcc lib usage.

I find a post which is not in english, that says, in MDK, gcc, add libraies, it need to delete the header lib and .a of the library file, then include it.

Now, it seems not OK on your side.

Now, send me your lib files and it's header file, or you can tell me the download link, I will try it on my side.

In the meanwhile, please also create this question in the MDK forum, how to add MDK GCC .a file.

www.keil.com/forum

Have a great day,
Kerry

Re: How to link .a files in MDK

jajaer — Mon, 12 Jun 2017 10:32:47 GMT

Hello Kerry,

Thank you very much;

I uploaded a project that I now use;the ‘KEAx_AMMCLIB_v1.0.0’ folder I took it straight from the BLDC motor library,and others I took it from the BLDC codewarrior project.

链接: http://pan.baidu.com/s/1nvbon7j 密码: vbt3

Best Regards

Eric