npm1300 one button sample

RE: npm1300 one button sample

mej7000 — Thu, 18 Jul 2024 15:26:10 GMT

Yes! That was it. Evidently P0.22 is not available on the nrf52840dk for that purpose... I have used P1.02 successfully in the past, so I tried that and it worked straight away! Thanks for helping me through that.

RE: npm1300 one button sample

Andy Sinclair — Thu, 18 Jul 2024 14:55:08 GMT

Hi.

The image now looks correct (GPIO3 initalises low, then goes high when the SHPHLD event occurs).
This should be seen by the host, which clears the event via I2C, which will cause GPIO3 to go low again.

Are you able to try linking it to a different I/O pin on the host to see if that has any effect?

Thanks
Andy

RE: npm1300 one button sample

mej7000 — Thu, 18 Jul 2024 13:23:48 GMT

[quote userid="128887" url="~/f/nordic-q-a/113019/npm1300-one-button-sample/494573"]Note that the led_on led_off calls refer to the nPM1300 HOST LED, not the LEDs on the EK.
They aren't expected to flash in this sample.[/quote]

Thanks! This is the kind of thing I wish was in the readme! One of my original questions was what does LED refer to? I thought that was vague in the documentation... My HOST LED does flash. Sure enough, if I comment: //led_off(leds, 2U); The HOST led stays lit. Thanks!

[quote userid="128887" url="~/f/nordic-q-a/113019/npm1300-one-button-sample/494573"]Are you connecting to the Battery and/or USB PMIC on the EK?[/quote]

Currently just the Battery is connected, no USB to the PMIC.

[quote userid="128887" url="~/f/nordic-q-a/113019/npm1300-one-button-sample/494573"]try removing some of the connections between the EK and the DK?
Please try connecting just VDDIO, GND, SCL and SCK in the first instance, and monitor GPIO3.[/quote]

VDDIO-VDD
GND-GND
SCL-P0.27
SCK-P0.26
nrf52840dk_usb connected
npm1300ek_usb not connected

Host flashes at a constant rate, which makes sense as the call backs never seem to fire.

[quote userid="128887" url="~/f/nordic-q-a/113019/npm1300-one-button-sample/494573"]If that works as expected (starts low, then goes high when SHPHLD is pressed), try connecting GPIO3 to P0.22.[/quote]

I made the connection from GPIO3 to P0.22 and I get the same, non-responsive result from the serial output and host led

RE: npm1300 one button sample

Andy Sinclair — Thu, 18 Jul 2024 12:39:21 GMT

Hi.

Note that the led_on led_off calls refer to the nPM1300 HOST LED, not the LEDs on the EK.
They aren't expected to flash in this sample.

Are you connecting to the Battery and/or USB PMIC on the EK?

Can you try removing some of the connections between the EK and the DK?
Please try connecting just VDDIO, GND, SCL and SCK in the first instance, and monitor GPIO3.
If that works as expected (starts low, then goes high when SHPHLD is pressed), try connecting GPIO3 to P0.22.

Andy

RE: npm1300 one button sample

mej7000 — Thu, 18 Jul 2024 10:44:28 GMT

I am never getting a flashing LED from the nrf52840dk in the npm1300_one_button sample. I made minor modifications to the code. The two "device is ready" and while loop (and my modifications) appear working, but the led never flashes and I never get any call_back event serial output.

The full code (and build) I used is attached.

int main(void)
{
	if (!device_is_ready(leds)) {
		printk("Error: led device is not ready\n");
		return 0;
	}
	else{
		printk("led device is ready\n");
	}

	if (!configure_events()) {
		printk("Error: could not configure events\n");
		return 0;
	}
	else{
		printk("events configured\n");
	}

	printk("PMIC device ok\n");

	int ret;
	while (1) {
		// when enabled, these work 
		// printk(".");
		// my_toggle_led_pin(0);
		// my_toggle_led_pin(1);
		// my_toggle_led_pin(2);
		// my_toggle_led_pin(3);

		//this does not work, no leds flash
		ret = led_on(leds, 2U);
		printk("led on ret: %d\n", ret);
		k_msleep(flash_time_ms);

		ret = led_off(leds, 2U);
		printk("led off ret: %d\n", ret);
		k_msleep(flash_time_ms);
	}
}

my connections

npm1300-nrf52840dk

VDDIO-VDD
GND-GND
SHPHLD-P1.15
GPIO3-P0.22
SCL-P0.27
SCK-P0.26
GPIO0-P1.10
GPIO1-P1.11
GPIO2-P1.12
GPIO4-P1.14
nrf52840dk_usb connected
npm1300ek_usb not connected

I get the following output when monitoring:

SHPHLD(npm1300ek)/P0.15(nrf52840dk)
GPIO3(npm1300ek)/P0.22(nrf52840dk)

I reconnected the VDDIO and VOUT2 jumper

remove jumper:

*** Booting nRF Connect SDK v3.5.99-ncs1-1 ***
Error: led device is not ready
uart:~$

return jumper:

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

devzone.nordicsemi.com/.../npm1300_5F00_one_5F00_button_5F00_1-_2800_3_2900_.zip

RE: npm1300 one button sample

Andy Sinclair — Wed, 17 Jul 2024 08:34:22 GMT

Hi.

SW1 look good, but I am confused about SW2.
The samples uses GPIO3 as the interrupt output, but it does not have an associated button, it is only on the pin header.
If SW2 is connected to P0.22, that is GPIO0, not GPIO3

I get the following with this sample:

Best regards
Andy

RE: npm1300 one button sample

mej7000 — Tue, 16 Jul 2024 20:02:57 GMT

I removed the jumper from VDDIO and VOUT2. Thanks!

This logic was not what I was expecting... The diagram shows what happens when

sw1 and sw2 are pushed
outputs on SHPHLD and GPIO3
the existing connections to the nrf52840dk

Does this look ok to you?

RE: npm1300 one button sample

Andy Sinclair — Tue, 16 Jul 2024 07:54:59 GMT

Hi.

The flashing Host LED shows that the communications between the host and the PMIC is working correctly.

Do you see a transition on GPIO3 with a scope?
I would expect to see a transition on this output when you press SHPHLD for the first time.
On a working system this output should remain high for about 1ms, before it is cleared by the host.

One problem I see in your setup is the use of VDDIO.
It should be connected to either the host, or a buck, not both.
Can you try removing the jumper on VDDIO REF?

Best regards
Andy

RE: npm1300 one button sample

mej7000 — Tue, 16 Jul 2024 00:03:55 GMT

[quote userid="122502" url="~/f/nordic-q-a/113019/npm1300-one-button-sample/493897"]You will need to adjust the pinout for the 52840dk. Just follow the pinout in the overlay[/quote]

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.

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

Function	nPM1300 EK		nRF52840 DK		Comment
Function	Pin name	Location	Pin name	Location	Comment
Power	VOUT2	P5 pin 1	External supply + (positive)	P21 pin 1	3.0 V, use default VSET2 on EK
Power	GND	P5 pin 3	External supply - (negative)	P21 pin 2	Ground
TWI	SDA	P11 pin 1	P1.02 P0.26	P4 pin 9	Connect to a TWI compliant General-Purpose Input/Output (GPIO) on DK
TWI	SCL	P11 pin 2	P1.03 P0.27	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 P0.22	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

RE: npm1300 one button sample

runsiv — Mon, 15 Jul 2024 12:10:01 GMT

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

RE: npm1300 one button sample

mej7000 — Mon, 15 Jul 2024 11:15:03 GMT

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...

RE: npm1300 one button sample

runsiv — Mon, 15 Jul 2024 11:10:13 GMT

Hi Michael

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

Regards

Runar