TMS320F28377D: CLA and TMU of 28377d

shook xu

Intellectual 745 points

Part Number: TMS320F28377D

HI!

I have three questions about CLA and TMU

1,Can i use the TMU Instruction In the CLA‘s program of 28377d project?

2,If TMU and CLA execute the same trigonometric function such as the "cos","atan", which is more faster?

3,Do you have the document introduce the efficiency of TMU vs CLA?

thank you

regards

shook

over 7 years ago

0 Sal Pezzino over 7 years ago

TI__Mastermind 32995 points

The TMU is a co-processing element only available to the C28x. The CLA cannot execute TMU instructions.

I will have to seek some additional guidance for the following two questions.

sal

0 Ken Schachter over 7 years ago

TI__Genius 17315 points

Shook,

As already explained, the TMU is an extension to the C28x CPU. The instruction set for the CPU/TMU and CLA is different. (You will notice that a C file for the CPU/TMU has the standard .c extension, whereas a C file for the CLA has a .cla extension. This way the compiler knows if it is compiling code for the CPU or CLA).

I don't know about the performance or efficiency between the CPU/TMU and CLA, but there are a few resources that you might be interested in -

The "TMS320C28x Extended Instruction Sets TRM" SPRUHS1 can be found at:

http://www.ti.com/general/docs/lit/getliterature.tsp?baseLiteratureNumber=spruhs1&fileType=pdf

If you would like to learn more about the C2000 accelerators, the see "Accelerators: Enhancing the Capabilities of the C2000™ MCU Family" SPRY288:

http://www.ti.com/general/docs/lit/getliterature.tsp?baseLiteratureNumber=spry288&fileType=pdf

You can watch the new video series "Control Law Accelerator (CLA) Hands-On Workshop" at:

https://training.ti.com/control-law-accelerator-cla-hands-workshop

And you can review module 9 in the C2000 multi-day workshop materials at:

http://processors.wiki.ti.com/index.php/C2000_Multi-Day_Workshop

I hope this helps.

- Ken