GPIOTE current consumption in nrf52832

RE: GPIOTE current consumption in nrf52832

niebert — Sat, 13 Mar 2021 08:15:41 GMT

Waiting in an interrupt handler is almost always bad practice. It would be better to handle the two events separately with handler calls. You have to organize your program logic in some way to make that possible. There are many options for that.

RE: GPIOTE current consumption in nrf52832

ande_dewal — Sat, 13 Mar 2021 07:45:53 GMT

Thanks for reply,

We are waiting in GPIOTE_handler() when falling edge is detected until rising edge. The Low_pulse time is nearly about 5 to 7seconds for that much time current consumption is 3.44mA. after that it is 0.02mA.

what should I do to reduce current consumption in GPIOTE_handler()?

RE: GPIOTE current consumption in nrf52832

niebert — Sat, 13 Mar 2021 07:28:17 GMT

A GPIO configured the way you do it does not consume anything. The 3mA look like the consumption of a running core that is not sleeping. So it is a question of what your software does after the edge.

RE: GPIOTE current consumption in nrf52832

ande_dewal — Sat, 13 Mar 2021 06:59:20 GMT

hi everyone,

After disable radio i am getting same current 3.29mA.

NRF_RADIO->TASKS_STOP=1;
NRF_RADIO->POWER=0;
NRF_RADIO->TASKS_DISABLE=1;

disable radio before gpiote_setup.

plaese, someone help me to reduce current on my custom board.

RE: GPIOTE current consumption in nrf52832

ande_dewal — Fri, 12 Mar 2021 14:00:29 GMT

thanks for reply,

I am using DCDCE for low current consumption.

NRF_POWER->DCDCEN = 1;
//disabling all interupts from peripherals
NRF_CLOCK->INTENCLR=0xFFFFFFFF;
NRF_UART0->INTENCLR=0xFFFFFFFF;
NRF_TWI0->INTENCLR=0xFFFFFFFF;
NRF_TWI1->INTENCLR=0xFFFFFFFF;
NRF_SPI0->INTENCLR=0xFFFFFFFF;
//log_init();
//timers_init();
ret_code_t err_code;
err_code = nrf_drv_gpiote_init();
APP_ERROR_CHECK(err_code);
gpiote_setup(); //interrupt defination for pulse pin
//sd_power_dcdc_mode_set(NRF_POWER_DCDC_ENABLE);
NRF_POWER->DCDCEN = 1;

after calling gpiote_setup(), NRF_POWER->DCDCEN register disabled.

Due to this my device consume more current.

please help me to solve this problem.

RE: GPIOTE current consumption in nrf52832

Jared — Fri, 12 Mar 2021 09:53:58 GMT

Hi.

Is the current static at 3mA, or is it only a short period? Most of the power should be used by the radio, so you should see a current consumption that varies accordingly to the radio activity. Adding a GPIOTE IN channel should only increase the current of about 0.1 µA. How much current do you measure if you do the same on the development kit? And how do you measure the current?

regards

Jared

RE: GPIOTE current consumption in nrf52832

ande_dewal — Fri, 12 Mar 2021 04:59:09 GMT

Hi everyone,

please someone reply me,i am waiting for your reply. thanks