TMS320F28388D: How to use math library in CLA for using trigonometric functions

 Now I am able to include CLAmath.h but for my project i need to use sine function  and if i tried to refer sinf function it was raising this error 

undefined first referenced
symbol in file
--------- ----------------
CLAsincosTable ./cla_ex1_asin_cla.obj
CLAsincosTable_Coef0 ./cla_ex1_asin_cla.obj
CLAsincosTable_Coef1 ./cla_ex1_asin_cla.obj
CLAsincosTable_Coef2 ./cla_ex1_asin_cla.obj
CLAsincosTable_Coef3 ./cla_ex1_asin_cla.obj
CLAsincosTable_TABLE_SIZEDivTwoPi ./cla_ex1_asin_cla.obj

error #10234-D: unresolved symbols remain
error #10010: errors encountered during linking; "cla_ex1_asin.out" not built

>> Compilation failure
makefile:151: recipe for target 'cla_ex1_asin.out' failed
gmake[1]: *** [cla_ex1_asin.out] Error 1
makefile:147: recipe for target 'all' failed
gmake: *** [all] Error 2

Anyone know how to fix this issue please let me know..

Anyone Know where these tables are declared(location) or which file I need to include in the project to eliminate this, any information please share. Thank you

Regards,

Navodaya.

Hi,

Apologies for the delay. Have you included the clamath.lib library in your CCS project?

Regards,

Veena

Hi,

Yeah, I included CLAmath.h in my project  from here "C:\ti\c2000\C2000Ware_4_02_00_00\libraries\math\CLAmath\c28\include"  

or do I need to include CLAmath.lib  LIBRARY FILE ? if yes can you please text in which directory did the file exists, since i cant able to find it.

and if i run the project it says tables was not declared like that which i mentioned above.

These are my Library file from "C:\ti\c2000\C2000Ware_4_02_00_00\libraries\math\CLAmath\c28\lib" 

i already imported this dir in my project

navodayavarma kucharlapati said:

Yeah, I included CLAmath.h in my project  from here "C:\ti\c2000\C2000Ware_4_02_00_00\libraries\math\CLAmath\c28\include"  

This is only the header file. To use the library, the .lib file need to added to the CCS project build. You can just add the required lib to your CCS project.

Regards,

Veena

yeah I understand, previous reply I attached the 2 screenshots all my includes and other was all available .lib files for clamath can you please say what to include (i think i already included the path)

Hi,

The image you shared is the include path folder. That is telling the compiler to use those folders for resolving the #inlcude headers. The lib should be included be included in the project -

You can do it either by adding the lib to your CCS project

Or by adding the lib in the Linker options - 

Regards,

Veena

Hi,

i tried including using first method as you said cla1_math_library_datarom_fpu32  i got this console error message  Link For console file   related to contains TI-COFF object files which are incompatible with the ELF output file.

Regards,

Navodaya

Hi Veena, I did what you said and i shared the error I which got in last reply. if info regarding that please let me know.

Regards,

Navodaya. 

Please note the warning in the console log : 

Please make sure you are using the correct library. I would recommend you start with a cla library example

Reagrds,

Veena

Hi, 

I made some modification in properties and this was the only warning left try help me with this 

warning #10247-D: creating output section "CLA1mathTables" without a SECTIONS specification

Regards,

Navodaya.

Please refer to the linker cmd files used in the CLA math examples

Regards,

Veena

can you please provide the link for those resources.

Regards,

Navodaya.

CLA Math examples are available in C2000ware\libraries\math\CLAmath\c28\examples.

Import any one example. Right click ->Build Configuration-> Set Active -> Select the device

Regards,

Veena

Hi Veena,

Thank you for sharing information. I referred those examples properties and modified accordingly. I got this warning message, can you please say what to add under SECTIONS to eliminate this warning

   warning #10247-D: creating output section "CLA1mathTables" without a SECTIONS specification

and I am using same .cmd files which i shared above.

Regards,

Navodaya.

Hi Venna Thank you for helping my issue is resolved .

1. I want know in detail about some things in .cmd file like .text, . bss, .const and what PAGE do like this information can you please share information about these with some links or these already explained in some threads can you please send those link to it.
2. and for resolving that clamathtables I included this in my .cmd file  CLA1mathTables   :> 0x000F870, PAGE=1, TYPE = DSECT  by refering to this thread  https://e2e.ti.com/support/microcontrollers/c2000-microcontrollers-group/c2000/f/c2000-microcontrollers-forum/542437/clamath-library-not-working/1978972#1978972   is the location I included inline correct or i need to modify.
3.  My .cmd  file is  https://github.com/Navodayavarmak/temp_share/blob/main/f2838x_cla_c_lnk.cmd