LAUNCHXL-F28379D: wrong Phase shift at ePWM1, and hence wrong phase-shift at consecutive blocks ePWM2, ePWM3, ePWM4 etc...

Pradeep Braun

Hi,

I would like to have a phase shift of X (say 90) degrees, at the first ePWM1 block.

With respect to ePWM1, I would like to configure other ePWM blocks(ePWM2, ePWM3, etc...).

My model works till there is 0 phase shift at the ePWM1, the moment I try some phase shift at ePWM1..the whole configuration collapses.

I get wrong duty cycle, wrong phaseshift with other blocks,..etc..

over 2 years ago

0 Ryan Ma over 2 years ago

TI__Mastermind 20876 points

Hi Pradeep,

If ePWM1 block is the primary module that will send out the syncout pulse to your other secondary modules, make sure that the PHEN bit is not set in ePWM1 block.

Best,

Ryan Ma

+1 Ryan Ma over 2 years ago in reply to Ryan Ma

TI__Mastermind 20876 points

Hi Pradeep,

Do you have your synchronization code snippet you could share?

Best,

Ryan Ma

C2000™︎ microcontrollers

C2000 microcontrollers forum

LAUNCHXL-F28379D: wrong Phase shift at ePWM1, and hence wrong phase-shift at consecutive blocks ePWM2, ePWM3, ePWM4 etc...