CCS/TMS570LS0332: A issue of HET with TMS570

Luffy Liu

Part Number: TMS570LS0332

Tool/software: Code Composer Studio

I want to use TMS570LS0332 to generate PWM.

WIth the function pwmSetDuty(hetRAMBASE_t * hetRAM, uint32 pwm, uint32 pwmDuty), I can only generate the duty cycle from 0-100.

How can I generate higher accuracy PWM? Do I have to use assembly?

my code

my configration

over 8 years ago

0 Anthony F. Seely over 8 years ago

TI__Guru 68920 points

Yes you need to write a custom HET program w. custom driver.
The HET IDE has templates for various PWMs so you can load the IDE, instantiate a PWM template and experiment.
The resolution available is down to one HR Clock of HET - this is usually 12.5ns max on an 80MHz device.

0 JIXIANG LEE over 8 years ago in reply to Anthony F. Seely

Prodigy 40 points

Thank you very much for your reply! Can you use IDE to help me write a routine, which I do not quite understand, thank you very much, good!

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CCS/TMS570LS0332: A issue of HET with TMS570