Disable VBUS reset

RE: Disable VBUS reset

hamit — Fri, 27 Jan 2023 14:47:12 GMT

Hi Håkon,

Thank you for help, below code was ok for my application.

...init main...

// If reset caused by VBUS rising/falling edge, ignore and continue sysoff mode
uint32_t resetReason = NRF_POWER -> RESETREAS;
NRF_POWER->RESETREAS = 0xFFFFFFFF; // Clear Reset Flags.
if (resetReason & 0x00100000)
{
// PREPARE SYSOFF AGAIN
}

Regards,

Hamit

RE: Disable VBUS reset

Håkon Alseth — Fri, 27 Jan 2023 12:39:38 GMT

Hi,

Unfortunately, VBUS DETECT will give a wakeup condition when the device is system-off: RE: Wake on VBUS connected but not disconnectedW

[quote user=""]Can i use NRF_POWER -> RESETREAS or any other register exist to detect it ?[/quote]

RESETREAS will reflect the reset source, including if it is from VBUS detect.

Kind regards,

Håkon