TMS320F280049: TMU + FPU examples

Jack Tan80

Part Number: TMS320F280049
Other Parts Discussed in Thread: C2000WARE

Dear expert,

As I know, F280049 support FPU and TMU, can you please share a example of how to use TMU + FPU? I'd like to use this feature for actan, divide, and sin/cos calculation.

Merry Chrismas in advance.

over 4 years ago

0 Srinivasa Chakravarthy over 4 years ago

TI__Intellectual 1360 points

Due to holidays, you can expect a response in the first week of Jan 2020.

0 Sira Rao80 over 4 years ago in reply to Srinivasa Chakravarthy

TI__Mastermind 23290 points

Jack,

What you can do is look at the following examples in C2000Ware (C:\ti\c2000\C2000Ware_2_00_00_03\libraries\math\FPUfastRTS\c28\examples). These examples illustrate the use of a Fast RTS library for FPU operations like trigonometric operations, exponent, log etc. These run faster than the traditional RTS library, but they are slower than if the TMU is used.

In order for the TMU to be used, the Project properties for these examples will have to be modified so as to enable the TMU (under C2000 Compiler ->Processor Options), and also changing the --fp_mode to Relaxed (under C2000 Compiler -> Optimization). So you can compare performance between the FPUFastRTS library and the TMU.

Thanks,

Sira

0 Jack Tan80 over 4 years ago in reply to Sira Rao80

Mastermind 7100 points

Sira,

Thanks for this info.

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TMS320F280049: TMU + FPU examples