GPIO 24 voltage high low status

[Newbie]

Hello,

I am using sdk 12.2.2 and nrf52 customised board. Now my challenge is as follows.

When I am adding this in my code.

nrf_gpio_cfg_output(26);
nrf_gpio_pin_write(26, 1);

pinread1 = nrf_gpio_pin_out_read(26);
NRF_LOG_INFO("pinread status 26 %d \r\n", pinread1);

I am getting pinread1 status as 1 in logs but when I am manually checking the status of this pin with  multimeter I am getting 1.2V. My battery is providing 2.8V.

What can be the issue in this?

Thanks,

[Håkon Alseth]

Hi,

 

GPIO P0.26 is pin 38 on the mechanical package (QFN48) of the nRF52832. Are you sure you're checking the correct pin?

 

Best regards,

Håkon

[Newbie]

Yeah we am sure we are checking correct pin. We are using WLCSP Pakagae. But we are sure that we are checking correct pin.

Thanks,

[Håkon Alseth]

Hi,

 

Is anything connected to the pin? If there's a high load on the pin, it will limit the voltage.

Does this occur on more than one board?

 

Best regards,.

Håkon

[Newbie]

Hi,

We have not connected anything to this particular pin. We are facing this issue on every board.

Thanks,

[Newbie]

Note:

1. We are using NRf52832 package wlcsp.

2.  All internal pull ups are disabled.

3.  We are facing same challenge with other package (QFN48) on same pin i.e P0.26 (PIN 38).

We are attaching images for different test cases. 

Thanks,