TDA4VM: EHRPWM driver

Shine

Part Number: TDA4VM

Hello Champs,

Customer uses TDA4VM to drive12 ALMOS E524.09 ultrasound radar modules.

1. Can TDA4VM R5F MCU support 12 EHRPWM?
2. Is there linux or RTOS EHRPWM driver?
3. He wanted to generate 12 channel of us level wave, is the EHRPWM suitable?

Thanks.
Rgds
Shine

over 4 years ago

+1 Parth Nagpal over 4 years ago

TI__Mastermind 42135 points

Hi Shine,

Shine said:
Can TDA4VM R5F MCU support 12 EHRPWM?

There are 6 instances of PWM available on TDA4VM EVM with 2 channels each, which can be configured independently. Customer can use 12 PWM channels.

Shine said:
Is there linux or RTOS EHRPWM driver?

There is no high level driver available for PWM, but CSL support is present in RTOS SDK. Customer can use the CSL APIs to configure PWM.

Regards,
Parth

0 Nancy Wang over 4 years ago

TI__Expert 8210 points

Shine said:
3. He wanted to generate 12 channel of us level wave, is the EHRPWM suitable?

If customer wants to implement a 12 channel wave, does this need to use EHRPWM interrupt? If yes, us-level interrupts occupy more MCU resources. Is there a better way, such as DMA?

0 Parth Nagpal over 4 years ago in reply to Nancy Wang

TI__Mastermind 42135 points

Hi Nancy,

Nancy Wang said:
If customer wants to implement a 12 channel wave, does this need to use EHRPWM interrupt?

This depends on the use case which customer is trying to implement. Can you please elaborate what use case here?

Regards,
Parth

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TDA4VM: EHRPWM driver