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Lfu.11
Associate
October 20, 2020
Solved

How to measure the power consumption of discovery board?

  • October 20, 2020
  • 2 replies
  • 1984 views

I am developing a application with STM32F746G discovery board with my sensor, and I reference AN4749 to design a lop-power control flow.

But I don't know how to measure/monitor/analyzing the power consumption to make sure whether my design is work or not.

Is there any software tool that can do this? Or I need to buy another hardware tool?

Thanks for any kind support.

This topic has been closed for replies.
Best answer by TDK

Remove JP1 and use a current monitor in its place.

2 replies

TDK
TDKBest answer
October 20, 2020

Remove JP1 and use a current monitor in its place.

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Lfu.11
Lfu.11Author
Associate
October 22, 2020

For now, my power supply is from USB(CN14).

Are you mean that I need to remove the jumper (5vlnkusb <-> 5v) and put my current monitor between those 2 pins?

TDK
October 22, 2020
Yes, it looks like all power comes through that connector. You could double check the schematic to be sure.
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wired
Senior II
April 14, 2022

And if you really want to know what's going on in your low-power battery-operated system, buy a Joulescope! Best product for everyday embedded engineers in the past decade, IMO! I just keep mine attached to the board I'm working on and run it continuously.