RE: nPM1300 is not charging - is NTC to GND the reason?

bjornolsen — Tue, 22 Oct 2024 19:21:42 GMT

for SDK 2.7 this needs to be changed to:

	ret = mfd_npm1300_reg_write(config->mfd, CHGR_BASE, 0x06, 2U);
	if (ret != 0) {
		return ret;
	}

RE: nPM1300 is not charging - is NTC to GND the reason?

Kampino — Sat, 04 Nov 2023 14:08:33 GMT

Update:
We found the issue. The nPM1300 driver is not handling the missing NTC correctly. This issue also explains why it´s required to add values for the NTC. This looks like an issue in all Zephyr versions.

To fix it "npm1300_charger_init" in "sensor/npm1300_charger/npm1300_charger.c" must be expanded with

ret = reg_write(dev, CHGR_BASE, 0x06, 2U);
if (ret != 0) {
	return ret;
}

We will create an issue in the Zephyr project to tackle this issue.