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TMS320F28044: HRPWM Capabilities

Irene Boben

Intellectual 920 points

Part Number: TMS320F28044

Hi,

When enabling HRPWM capabilities for ePWMxA of a module, can we use signal path B (ePWMxB) in its conventional way i.e. Can we still have action qualifiers and other parameters set for ePWMxB?

over 3 years ago

0 Cody Watkins over 3 years ago

TI__Mastermind 41385 points

Correct,

ePWMxB will work normally when using the HRPWM capabilities for ePWMxA. There will be some small potential jitter between the High Resolution channel and the standard resolution channel. This is because the non-HR channel is still required to be aligned to the system clock edge.

Regards,
Cody

0 Irene Boben over 3 years ago in reply to Cody Watkins

Intellectual 920 points

Hey Cody,

Can we use ePWMB when we use all channels for HRPWM (16 channels)?

0 Cody Watkins over 3 years ago in reply to Irene Boben

TI__Mastermind 41385 points

When using all 16 PWMs as HRPWMs: each PWM has on this device only has it's PWMxA channel pinned out.

Please see this thread here for more details:

https://e2e.ti.com/support/microcontrollers/c2000/f/171/t/22504?clarification-on-the-TMS320F28044-device-PWM-capabilities

Regards,
Cody

0 Irene Boben over 3 years ago in reply to Cody Watkins

Intellectual 920 points

Thank you Cody. This helped.