AN4365 datasheet(22/35 Pages) STMICROELECTRONICS

部品番号	AN4365

部品情報	Using STM32F4 MCU power modes with best dynamic efficiency

PDF	35 Pages

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メーカー	STMICROELECTRONICS [STMicroelectronics]

ホームページ	http://www.st.com

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STM32F4 current consumption measuring

AN4365

22/35

DocID025303 Rev 2

Figure 10. Hardware/software environment setting for VDD=1.8 V

2.2.2

Consumption measuring best practices

After setting the hardware and software environment, the user can run the STM32F4 power

consumption firmware and start measuring the current consumption in each mode.

To measure current consumption with the STM32F4 discovery board using the power

consumption switching menu, you should proceed as follows:

•

If Run mode is defined, press the button to enter the first selected Run sub-mode.

Once the LEDs stop blinking, the device starts executing the CoreMark benchmark and

the user should measure the corresponding current before the LEDs return to lighting

status after almost 10 s.

•

If Sleep mode is defined, press the button to enter the first selected Sleep sub-mode.

Once the LEDs stop blinking, the device enters the first selected Sleep sub-mode.

AN4365 データシート(PDF) 22 Page - STMicroelectronics