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Smoun.1
Smoun.1
Associate III
August 4, 2020
Solved

480MHz HRTIM on H743ZI?

  • August 4, 2020
  • 4 replies
  • 1125 views

Hi, has anyone been able to configure maximum clock speed (480MHz per datasheet) for the H743ZI with cubeMX?

I can't get the radio button from TIM2_CK to CPU_CK and as such I can't get the PWM resolution I am looking for on the HRTIM.

Not my only question... The provided project examples are helpful but none of these examples help with PWM configuration of sync'ed channels. This is for a 3phase motor control project. I have everything up and running fine on TIM1 (CH1/CH1N, CH2/CH2N, CH3/CH3N) but I'd like to transfer PWM to HRTIM for increased resolution (that is if I can setup HRTIM to use the CPU clock).

Thanks for your help

Cheers

This topic has been closed for replies.
Best answer by Khouloud ZEMMELI

@Smoun.1​  Use the latest CubeMX version,

Thanks for your feedback,

Khouloud

4 replies

TDK
TDK
August 4, 2020

I started a new project, set the clock speed to 480 MHZ, enabled HRTIM, and switched the clock source to Cpu_Ck. No problems.

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Smoun.1
Smoun.1Author
Associate III
August 4, 2020

thanks - tried again and you're right, it did go through.

Khouloud ZEMMELI
Khouloud ZEMMELIBest answer
ST Employee
August 5, 2020

@Smoun.1​  Use the latest CubeMX version,

Thanks for your feedback,

Khouloud

Bassett.David
Bassett.David
Associate III
August 7, 2020

Hello Smoun,

As an aside, did you test on TIM1 using the center-aligned mode? If so, be advised that the HRTIM on the H7-series does not support center-aligned mode! The G4-series has an enhanced HRTIM that does support center-aligned mode.

I was disturbed to discover this, and hope you can avoid similar disappointment...

Regards,

Dave

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