nRF52832 high current consumption

RE: nRF52832 high current consumption

Girolamo — Mon, 24 Feb 2025 15:42:10 GMT

Hi,

it doesn't help. My problem was related to timer callback on timer1 created with <zephyr/drivers/counter.h> library, I changed timer and now it absorbs around 17uA. Thank you all

RE: nRF52832 high current consumption

Edvin — Mon, 24 Feb 2025 15:00:21 GMT

Hello,

Since the numbers seems to be matching, I would also suggest the workaround for Errata 89, linked by Gudni . Whenever you have used your I2C0, run this:

*(volatile uint32_t *)0x40003FFC = 0;
*(volatile uint32_t *)0x40003FFC;
*(volatile uint32_t *)0x40003FFC = 1;

And whenever you have used I2C1, run this:

*(volatile uint32_t *)0x40004FFC = 0;
*(volatile uint32_t *)0x40004FFC;
*(volatile uint32_t *)0x40004FFC = 1;

Let me know if that doesn't help.

Best regards,

Edvin

RE: nRF52832 high current consumption

Girolamo — Mon, 24 Feb 2025 13:07:12 GMT

Thank you man for the suggestion, it is GPIOTE related to timer.

RE: nRF52832 high current consumption

Gudni — Sun, 23 Feb 2025 14:56:38 GMT

Any chance you're using GPIOTE? Then this errata may be relevant: https://docs.nordicsemi.com/bundle/errata_nRF52832_Rev3/page/ERR/nRF52832/Rev3/latest/anomaly_832_89.html ([89] GPIOTE: Static 400 µA current while using GPIOTE)