NPM1300-EK + nPM PowerUp - Getting started troubles

[frax84]

Hello,

i'm developing a custom board with nPM1300 + nrf5340. First things first, i purchased a nPM1300-EK to acquire the needed knowledge to make things working. Unfortunately, i'm having troubles starting to work with it. Summarizing, my issue is that nPM PowerUp (v.1.3.0) is staying in "Offline Mode" no matter how hard i try.

SETUP:

1) For my experiments, i'm using a Li-Ion battery 3.7-4.2V, 1100mAh, with no NTC

2) The battery is connected through P1 and having no NTC i used a jumper on P3 between NTC and 10kOhm pins. Wires polarization has been double-checked.

3) I followed the boot-strap sequence: USB-C on PMIC -> Battery connection -> USB-C on nPM controller as described here

4) Using a digital multimeter i can detect VOUT1=1.8V and VOUT2=3V. This is a good check for USB-C on PMIC and for the PMIC health status itself.

5) When nPM controller USB is plugged i get the popup on the PC and the devices pops in nPM PowerUP too. This is a good check for USB-C on nPM Controller. The LD4 led blinks slowly (once every 2s more or less).

I can select the nPM1300 EK device on the nPM PowerUP software. When i do, the log displays these lines:

12:18:31.164	Selected device with s/n DB737607ED40A4B7
12:18:31.168	Opened port with options: {"path":"COM8","baudRate":115200}

Unfortunately, and this is the issue, on the left side the "Connection status" is highlighted as "Offline Mode", with no green color anywhere (as it happens here on your Youtube vid) For the very same reason, i can't set the charger or having any response from the software (i can edit values but nothing changes, so i suppose is a "don't care" edit).

Suggestions?

Frax

[Marte Myrvold]

Hi Francesco,

If you connect to the nPM1300 EK in the nRF Connect for Desktop Serial Terminal app and then try to open the EK in the nPM PowerUp, do you see any data being written to the device?

Best regards,
Marte

[frax84]

Hi Marte,

if i connect the nPM1300 EK to the Serial Terminal app through COM8 in the app console i get this ouput

*** Booting nRF Connect SDK v3.5.99-ncc1 ***

[1;32m[0 :00:00. 31,799] <inf> module_ccOsink: DAC is nod available
[ 0:00:00.038,177M <inf> module_pmic_irq: type=RSTCAUSE,bit=SWRESET

[1;32m[0 :00:00. 46,691] <inf> module_pmic: Default USB 100/500mA
1;32mchell:~$

If, without closing the Serial Terminal app console, i open the nPM PowerUp app:

1) If i ignore the Select Device part of nPM PowerUp assuming that the device is connected...nothing happens, neither in nPM PowerUp console nor EK hardware (i.e. charging battery led doesn't light up) nor nPM options/plot

2) If i Select Device in the nPM PowerUp part and select the EK the Serial Terminal app drops the connection and the same behaviour as before happens in the nPM PowerUp console:

16:36:49.018	Selected device with s/n DB737607ED40A4B7
16:36:49.024	Opened port with options: {"path":"COM8","baudRate":115200}

I hope i performed the test you wanted. In case i didn't please let me know.

Frax

[frax84]

any news? I see the engineer assigned to the  post has changed a lot but still no answer

[Marte Myrvold]

Hi Frax,

I apologize for the delay.
I forwarded your information internally, and they are still investigating it. Unfortunately, we have not yet been able to reproduce your issue. I have pinged for an update internally and will get back to you in a couple of days.

Best regards,
Marte

[Marte Myrvold]

Hi,

There seems to be something strange about the output you shared. Does the output contain the string "[1;32m[0 :00:00. 31,799]" when you see it in the Serial Terminal, or is this something that gets added when you copy it?

Do you have the COM port open in another application other than the nRF Serial Terminal and nPM PowerUp?

Best regards,
Marte