LPC MicrocontrollersのトピックRe: CMSIS DSP library porting in LPC54608J512BD208

CMSIS DSP library porting in LPC54608J512BD208

prasannanaik — Thu, 29 Aug 2019 10:27:46 GMT

Hi,

I am using LPC54608J512BD208 microcontroller in a project. I want to use 32 bit fft functions available in CMSIS library but i am unable to compile the code after calling "arm_rfft_fast_init_f32()" function. I have referred to "Using CMSIS-DSP with MCUXpresso SDK and IDE " but still getting compilation error
"cannot find -llibarm_cortexM4lf_math lpcxpresso54608_hello_world C/C++ Problem"

I have given path of library file located in sdk. My sdk is in same workspace.

I have attached the code for reference. Please help in resolving this issue.

Thanks and best regards,

Prasanna

Re: CMSIS DSP library porting in LPC54608J512BD208

soledad — Thu, 29 Aug 2019 17:06:09 GMT

Hi,

Please check the following link: https://community.nxp.com/message/1031640

let me know if this helps, have a nice day!

Regards

Soledad

Re: CMSIS DSP library porting in LPC54608J512BD208

prasannanaik — Fri, 30 Aug 2019 05:33:22 GMT

Hi Soledad,

I have implemented all the steps mentioned in the link but still unable to compile.

I have uncompressed sdk and then i have given path of CMSIS folder and CMSIS library of SDK. Is that proper?

Please check the code attached for any clue.

Thanks and best regards,

Prasanna

Re: CMSIS DSP library porting in LPC54608J512BD208

prasannanaik — Thu, 05 Sep 2019 09:28:04 GMT

Hi soledad‌,

Good Day!!!

Any update on the query?

Thanks and best regards,

Prasanna

Re: CMSIS DSP library porting in LPC54608J512BD208

prasannanaik — Mon, 09 Sep 2019 04:23:34 GMT

Hi soledad‌,

I have even tried explicitly adding the CMSIS folder from SDK into my project and linking that folder as suggested in "https://community.nxp.com/docs/DOC-335465 " but still unable to compile.

Please help in resolving the query.

Thanks and best regards,

Prasanna

Re: CMSIS DSP library porting in LPC54608J512BD208

soledad — Mon, 30 Sep 2019 16:39:17 GMT

Hi,

In addition to the step fromUsing CMSIS-DSP with MCUXpresso SDK and IDE please add

#define __FPU_PRESENT 1 /**< Defines if an FPU is present or not */

in core_cm4.h,and in IDE perspective select the following settings:

Regards

Soledad