how to loard the rts67plus.lib correctly and the differences between rts67plus.lib and rts6740.lib

Mariana said:

1.in the cmd file,when i write '-l rts67plus.lib' and select -mv674x in build options.there will be a link error (undefined symbols , first reffered).but when i select -mv6700 in build options,there is no error at all.

Make sure that you have CGT 6.1.9 or later:

http://tiexpressdsp.com/index.php/-mv_option_to_use_with_the_C6747

If that does not solve, please send the error that you getting.

yunpeng ma said:

2.i don't know the differences between  rts67plus.lib and rts6740.lib . what are the use of these two libs,and whether are they necessary for my program.

 67plus library is the one made for the C67x+ floating point core. 64plus library is the one made for the C64x+ fixed point core.

C6747 has an hybrid core that will run all the instruction from the C67x+ core PLUS all the instructions for the C64x+ plus core. So for C674x you should use the rts6740 be cause it is more efficient, but the 67plus and 64plus will work as well.

 

 

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thanks ror your answer ! i want to know whether the 6740.lib is loaded  when i select -mv6740 in build options.then it is unnecessary to write '-l rts67plus.lib' in my cmd file.

 

Mariana said:

1.in the cmd file,when i write '-l rts67plus.lib' and select -mv674x in build options.there will be a link error (undefined symbols , first reffered).but when i select -mv6700 in build options,there is no error at all.

Make sure that you have CGT 6.1.9 or later:

http://tiexpressdsp.com/index.php/-mv_option_to_use_with_the_C6747

If that does not solve, please send the error that you getting.

yunpeng ma said:

2.i don't know the differences between  rts67plus.lib and rts6740.lib . what are the use of these two libs,and whether are they necessary for my program.

 67plus library is the one made for the C67x+ floating point core. 64plus library is the one made for the C64x+ fixed point core.

C6747 has an hybrid core that will run all the instruction from the C67x+ core PLUS all the instructions for the C64x+ plus core. So for C674x you should use the rts6740 be cause it is more efficient, but the 67plus and 64plus will work as well.

[/quote]

thanks ror your answer ! i want to know whether the 6740.lib is loaded  when i select -mv6740 in build options.then it is unnecessary to write '-l rts67plus.lib' in my cmd file.

Unless you are using DSP/BIOS in your project (DSP/BIOS does it for you), you need to load the rts in your project. For C674x core you can use the rts6740.lib .