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Compiler/TMS320F28335: F28335 TMU problem

Fabrizio Corvace
Prodigy 40 points

Part Number: TMS320F28335

Tool/software: TI C/C++ Compiler

Hello,

I'm developing an application on a F28335 MCU, i'm trying to use the TMU of that mcu but i think it's not working properly. I read in the errata that there is a bug, but the latest Code Generation Tools should bypass the problem.

The problem is a simple as getting the result of sin(3.14), compiling without the TMU you get 0 (or around that anyway), when enabling the floating point mode Relaxed and the TMU support, the output value of the function will always be the input value of the function (3.14 in this case).

I am also testing with a F28377D board that i have, and the same test (sin(3.14) with and without TMU) yelds correct results.

Any suggestions to make the TMU work?

thanks,

Fabrizio