stlink-V3pwr and X-NUCLEO-LPMO01A inconsistent & inaccurate current readings

mars-ic · ‎2025-07-10

stlink-V3pwr current ： 21mA

X-NUCLEO-LPMO01A current ：17mA

actual current ： 15mA

TDK · ‎2025-07-10

Consider providing more information on why you think the spikes indicate a bug.

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Andrew Neil · ‎2025-07-11

@mars-ic wrote:
stlink-V3pwr current ： 21mA
X-NUCLEO-LPMO01A current ：17mA

Are you sure that these are measuring the exact same pulses?

@mars-ic wrote:
actual current ： 15mA

How do you measure that?

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.

mars-ic · ‎2025-07-12

1、Same hardware and software。
2、will Compare the measurement data of DMM6510(Keithley DMM6500 6.5 Digit Multimeter with Graphical Touchscreen)

Andrew Neil · ‎2025-07-14

@mars-ic wrote:
1、Same hardware and software。

But were they at the same time ?

@mars-ic wrote:
2、will Compare the measurement data of DMM6510 (Keithley DMM6500 6.5 Digit Multimeter with Graphical Touchscreen)

Do you mean DAQ6510 - this: https://www.tek.com/en/products/keithley/digital-multimeter/keithley-daq6510 ?

Are you sure that has the necessary time resolution for such short pulses?

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.