TMS320F280025: How many poles and zero equation that C28X core can process?

Dylan You

Dear Teams,

My customer has following question. Could you help check that?

Refer to following picture. C28X processing instruction for 2 poles and 2 zero fundamental equation: Whether the n can be up to 64?

Thanks!

Dylan

over 5 years ago

0 Shamim Choudhury over 5 years ago

TI__Genius 12225 points

It takes about 100 clock cycles to execute a PID controller which is also a type of 2 pole 2 zero controller. Therefore for a 100MHz C2000 MCU, such as F28004x, it will take about 100*10nS = 1000nSec = 1.0uSec to execute a PID controller.

Shamim

0 Dylan You over 5 years ago in reply to Shamim Choudhury

TI__Intellectual 2630 points

Hi Shamin,

Could I think about it will take 200 clock cycles to execute a PD controller if the PID controller has 4 poles 4 zeros?

Thanks!

Dylan

+1 Shamim Choudhury over 5 years ago in reply to Dylan You

TI__Genius 12225 points

Yes, you can say that approximately it will take twice as many cycles.

Shamim

0 Dylan You over 5 years ago in reply to Shamim Choudhury

TI__Intellectual 2630 points

Hi Shamim,

Thanks a lot for your confirmation!

Dylan

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TMS320F280025: How many poles and zero equation that C28X core can process?