Regulator in Range 2. RM0444

Xme · ‎2025-04-14

Where is the truth ?

TDK · ‎2025-04-14

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

If you feel a post has answered your question, please click "Accept as Solution".

Andrew Neil · ‎2025-04-14

@TDK wrote:
"Range 2" is not "low-power run mode".

Indeed.

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

and here:

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 · ‎2025-04-15

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 · ‎2025-04-15

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.

If you feel a post has answered your question, please click "Accept as Solution".