Power consumption of NRF52 GPIOTE->IN

[Jorgewu]

Hi all: I found this issue happen on NRF52 with SDK v11.0. Because I measured the current increased ~1mA after enable GPIOTE->IN, is there any solution can solve it?? Thanks...

[nrf52]

Hi Ole, As you said "With GPIOTE_CONFIG_IN_SENSE_HITOLO(true), which uses GPIOTE->IN you may see an increase in current consumption of ~450uA" , I meet the same issue, when enable GPIOTE->IN interrupt , increased "~450uA" on nRF52 board, how to fix it ,thanks

[Ole Bauck]

See this post. If you are using SPIM or TWIM in combination with GPIOTE->IN you may experience an increase in current of about 450uA. This is related to this errata (it does not mention SPIM since we are working on figuring out what the underlying cause is).

[gilbertjuly]

Then, how much current draw will nRF52 cause when using GPIOTE IN event (high precision)?

[ovrebekk]

Hi

A GPIOTE IN event on the nRF52 should increase the sleep current by around 20uA. 

In general though please open a new ticket if you are having issues with this, since this case is quite old. 

Best regards
Torbjørn

[gilbertjuly]

Hi Torbjørn, thank you for reply.

One GPIO's GPIOTE IN event increases the current by 20uA...

Does it mean: two GPIO's GPIOTE IN events increase the current by 40uA? And three increasing by 60uA?