PE16/POWERON PIN with 1k resistor keeps rebooting

Started by mauricio, November 05, 2025, 04:13:22 PM

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mauricio

Hello.

After discovering the PE16 pin 37 at GPIO has R65, but no R28, I solder one there :)

Now when connect GND to pin 37, A64 poweroff, but reboot. I would like it remain off

Is there's something else to do to achieve a poweroff with PE16 ?

Thanks

LubOlimex

No idea, it should be explained in AXP803 datasheet.

Did you keep the PWRON to GND all the time? If you release the GND connection the AXP803 is supposed to boot.
Technical support and documentation manager at Olimex

mauricio

Hello, thanks for answer.

I soldered a 0603 1k (carefuly drifted) resistor on pad R28, near to R65, which is populated.

The situation is now power button acts more like a reset, than a power button.

It boots with no problem. If I press any, original pwron1 button or PE16 to gnd, system reboots, no shutdown. I'd like it to shutdown and stay off.

The resistor is still there, because is kind of tricky to put it on there. I sort of remember before I put that resistor, pressing pwron1 button shuts down the system and it remains off. Is that way right ?