About nRF52832 download program problem.

[vsion]

    I use nRF52832,is 2.5v power supply,but  you can't download the program,when I set the voltage above 2.8v, I can download the program,then I switched the voltage to 2.5v and found that the program normal  worked.So I just want to ask you, since 2.5v works, why can't you download the program,Because my circuit board is powered by 2.5v, and 3.0v is provided by a stable voltage source.I feel very inconvenient, so I want to ask, when can I use 2.5v to download the program?Or it has to be above 2.8v to download the program for the mcu, right?

Tks.

[Håkon Alseth]

The voltage used when programming will depend on what voltage your programmer can handle.

More expensive programmers, like the J-Link Base, have level shifters to detect the target voltage. Simpler programmers, like the JLink CortexM lite and our nRF5-DKs, have a set voltage.

What programmer are you using?

 

Best regards,

Håkon