npm1300 one button sample

[mej7000]

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I can't seem to get the one button sample to do anything... I get a steady ~1sec flash from HOST led on the npm1300, but I get nothing from pushing SHPHLD for any duration of time.

   ============  ============  =========================================================

   Duration      Log output    Outcome

   ============  ============  =========================================================

   < 1 sec       Short press   Sample flashes **LED** at 5 Hz, LDSW 1 enabled

   1 - 5 sec     Medium press  Sample flashes **LED** at 1 Hz, LDSW 1 disabled

   5 - 10 sec    Long press    nPM1300 enters ship mode provided **J3** is not connected

   > 10 sec      None          nPM1300 long press reset activates

   ============  ============  =========================================================

I am unclear as to what the USB connections should be. I've tried

1. npm1300 J3 both connected and not connected.
2. npm1300 J4 not connected
3. nrf52840dk J2 connected and not connected

nothing seems to change the npm1300/nrf52840dk behavior, also it's unclear which **LED** the sample is referring to.

I get this from the nrf52840 Serial output:

*** Booting nRF Connect SDK v3.5.99-ncs1-1 ***
PMIC device ok
uart:~$

Not sure what I am missing here. No matter how long I push SHPHLD - Host continues to flash at a steady rate and no other LEDs activate...

I've included photos of my connections. I have an unrelated SPI Display connected, but unused.

The one button sample code is completely unmodified from the VSCode samples and all the jumpers on npm1300ek are as they came out of the box.

My Connections:

* - SDA nPM1300ek - P0.26 nrf52840dk
* - SCL nPM1300ek - P0.27 nrf52840dk

* - GPIO3 nPM1300ek - P0.22 nrf52840dk

* - VDDIO nPM1300ek - VDD nrf52840dk
* - GND nPM1300ek - GND nrf52840dk

[runsiv]

Hi Michael 

Could you try the setup as seen here, just change the nRF5340dk for the nRF52840dk

Regards

Runar

[mej7000]

in addition to making extra connections, that would specifically change gpio3 to the wrong (based on the one button sample) pin on the nrf52840dk. Are you sure? I'm not 100% what pins are required to use on the nrf52840 as the 5340 is different...

[runsiv]

Hi 

My wording was a bit unclear. You will need to adjust the pinout for the 52840dk. Just follow the pinout in the overlay together with the dk switches and use of usb port

Regards

Runar

[mej7000]

runsiv said:

You will need to adjust the pinout for the 52840dk. Just follow the pinout in the overlay

I don't see any specific pinout reference in the overlay for the nrf52840dk, so I followed the same pins used for the nrf5340dk in the setup you referenced. If that is not correct please let me know.

I still am not getting any results from pushing the SHDHLD button.

1. I made the wired connections as shown in the setup you referenced.
2. I also made the SHPHLD - P1.15 connection referenced in the text, but not shown in the diagram.
3. I connected GPIO3 - P1.13 (no results)
4. connected GPIO3 - P1.22 (as per one button sample README), but no results

Function	nPM1300 EK		nRF52840 DK		Comment
	Pin name	Location	Pin name	Location
Power	VOUT2	P5 pin 1	External supply + (positive)	P21 pin 1	3.0 V, use default VSET2 on EK
	GND	P5 pin 3	External supply - (negative)	P21 pin 2	Ground
TWI	SDA	P11 pin 1	P1.02 P1.26	P4 pin 9	Connect to a TWI compliant General-Purpose Input/Output (GPIO) on DK
	SCL	P11 pin 2	P1.03 P1.27	P4 pin 10	Connect to a TWI compliant GPIO on DK
GPIO	GPIO0	P12 pin 1	P1.10	P4 pin 1	Connect to a GPIO on DK
	GPIO1	P12 pin 2	P1.11	P4 pin 2	Connect to a GPIO on DK
	GPIO2	P12 pin 3	P1.12	P4 pin 3	Connect to a GPIO on DK
	GPIO3	P12 pin 4	P1.13 P1.22	P4 pin 4	Connect to a GPIO on DK
	GPIO4	P12 pin 5	P1.14	P4 pin 5	Connect to a GPIO on DK
Other	SHPHLD	P10 pin 3	P1.15	P4 pin 6	Connect to a GPIO on DK