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2 replies

TDK
Super User
April 14, 2025

Both. They're talking about different things. "Range 2" is not "low-power run mode".

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Andrew Neil
Super User
April 14, 2025

@TDK wrote:

 "Range 2" is not "low-power run mode".


Indeed.

@Xme - more details of what regulators are used in which power modes here:

AndrewNeil_0-1744649669639.png

and here:

AndrewNeil_1-1744649742089.png

 

 

A complex system that works is invariably found to have evolved from a simple system that worked.A complex system designed from scratch never works and cannot be patched up to make it work.
Xme
XmeAuthor
Associate II
April 15, 2025

So what is difference? 

it means that when I change voltage scaling to Range 2 while program runs, HCLK can be max 16Mhz .

But when after this I want use WFI(),  the HCLK must be 2MHz max ?

TDK
Super User
April 15, 2025

The MCU can be clocked from the normal regular (range 1 or range 2) or the low-power regulator (low power run mode).

Low-power run mode is a lower power consumption mode than either range 1 or range 2.

TDK_0-1744722571628.png

 

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