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ccs linking error as an undefined symbol related to SAA7115 decoder using DM642 EVM

Don Lee
Prodigy 10 points
Other Parts Discussed in Thread: CCSTUDIO

Hi all,
I am using a DM642 EVM board via XDS USB emulator for image capturing and the software is used by Simulink. When compiling for the TI board by CCS, there is a linking error as an undefined symbol related to the decoder SAA7115 which is shown as
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[Linking...] "C:\ccstudio\C6000\cgtools\bin\cl6x" -@"CustomMW.lkf"

<Linking>

 undefined  symbol                        first referenced in file

_SAA7115_Fxns                    C:\\Program Files\\MATLAB\\R2008a\\work\\All2010asvprogram\\ImageCapturing\\Buoy_simpleDetection_ccslink\\CustomMW\\dm642_video_globals.obj

>>   error: symbol referencing errors - 'Buoy_simpleDetection.out' not built

>> Compilation failure
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Actually, there was no file for saa7115.h/a then I added it in C:/ccstudio/boards/evmdm642/include
but the error has kept and I don't know where the error comes.
Before putting the file, the error was "identifier "SAA7115_Fxns" is undefined"
Hardware connection and recognition are ok, although I am not sure that software are all equipped
How can I find the file where the symbol is? I need your help to fix this. Thank you very much for your help.
 
Don
  • 0
    TI__Guru**** 171309 points

    Don,

    The error you described means that the function/variable SAA7115_Fxns is not being found by the linker. This must be in either a source file or a library that is missing from your project. Unfortunately I don't know the code generated by the Simulink in detail, but it seems the source file <evmdm642_vcapparamsNTSC_EMBEDDED.asm> contains a definition for this symbol.

    This file is included in the installation directory of the DM642 software, typically located at:

    C:\CCStudio_v3.3\boards\evmdm642\examples\video\scaling

    Hope this helps,

    Rafael