Turn off UART and the power consumption does not decrease

RE: Turn off UART and the power consumption does not decrease

JONATHAN LL — Tue, 17 Aug 2021 06:46:53 GMT

Hi,

There is a bug that will cause the app_uart_close() to not work correctly. So you have to make sure that the UART is stopped before you call the app_uart_close(), and app_uart_close() should also wait for APP_UART_TX_EMPTY to make sure the TX buffer is empty.

Here is a similar case: nRF52840 SDK16 - "app_uart_close()" cannot low current - Nordic Q&A - Nordic DevZone - Nordic DevZone (nordicsemi.com)

Regards,
Jonathan

helen — Tue, 17 Aug 2021 01:53:54 GMT

The SDK version I using is nRF5_SDK_16.0.0_98a08e2.

JONATHAN LL — Mon, 16 Aug 2021 14:45:05 GMT

Hi,

What SDK are you using ?

Regards,
Jonathan