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reduce I/O speed to save power

GauravK
Senior

‎2024-11-07 04:58 AM - last edited on ‎2024-11-07 05:03 AM by

Hello, 

Can I know any available settings to reduce I/O speed. The idea is to reduce power consumption by F429. 

CubeMX doesn't allow to change I/O speed.

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3 REPLIES 3
SofLit
ST Employee

‎2024-11-07 05:12 AM

Hello @GauravK ,

 

@GauravK wrote:

CubeMX doesn't allow to change I/O speed.

How?

SofLit_0-1730985170865.png

 

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Ozone
Lead II

‎2024-11-07 05:31 AM

While you can theoretically change the clock speed settings of most  peripheral units, I doubt it makes any significant difference.

Reduce the core clock or introduce standby/sleep mode.
The power consumption difference this makes is specified (for certain frequencies) in the datasheet.

Peter BENSCH
ST Employee

‎2024-11-07 05:59 AM

+1

Reducing the I/O speed actually has less influence on power consumption than on the reduction of EMI.

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