undefined symbol FS$$MPY

Mark Santacesaria

I am getting undefined symbol references.......CCS V3.3, 28335.... i was able to find information on this that suggests i need to include the RTS library but i am including rts2800_fpu32_fast_supplement.lib already......does anyone know why i am getting these errors? Thanks.

over 12 years ago

0 Igor Gorbachev over 12 years ago

Guru 20525 points

Hello!

Try to refer to http://processors.wiki.ti.com/index.php/C28x_Compiler_Error_and_Warning_Messages (Error: unresolved symbols remain....).

Regards,

Igor

0 stevenh over 12 years ago

Guru 20045 points

You might want to take a look at this: http://e2e.ti.com/support/development_tools/compiler/f/343/t/128880.aspx.

Also, it might be a good idea to upgrade to v5.3.

0 Igor Gorbachev over 12 years ago in reply to stevenh

Guru 20525 points

1 Yes, at this too and also at http://processors.wiki.ti.com/index.php/C28x_Code_Generation_Tips_and_Tricks#Q:_When_I_build_I_get_a_bunch_of_undefined_symbols_with_.24_in_them_like_FS.24.24MPY.2C_FS.24.24TOL_-_what_are_these.3F (Q: When I build I get a bunch of undefined symbols with $ in them like FS$$MPY, FS$$TOL - what are these?).

2 "it might be a good idea to upgrade to v5.3" or v5.2 - WARUM NICHT?

Regards

0 Lori Heustess over 12 years ago

TI__Guru* 93240 points

Mark Santacesaria said:
i was able to find information on this that suggests i need to include the RTS library but i am including rts2800_fpu32_fast_supplement.lib already

To clarify - the supplement (fastRTS) only supports a few functions that have been accelerated (division, square root, sin, cos). You will still need to link in the normal compiler runtime support lib (rts2800_fpu32.lib for floating point). As one of the post showed, make sure the fastRTS is linked in before the normal codegen RTS in order to pickup the accelerated functions (first linked in wins!).

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undefined symbol FS$$MPY