We are currently testing the nRF7002dk with Zephyr 2.3.0. We have a application that sets up BLE and then sleeps forever in the main thread.
On our development board, we have shorted SB17 to allow us to measure the power consumed by the nrf5340 using P22.
If I disable logging and other peripherals (SPI, I2C), I have found that if I compile and run the code with
CONFIG_WIFI=n
CONFIG_WIFI_NRF700X=n
The idle power consumption between BLE advertisements is around 10uA. If I change the options in my prj.conf to
CONFIG_WIFI=y
CONFIG_WIFI_NRF700X=y
The idle power consumption measured at P22 between BLE advertisements increases to 1.7mA.
To reproduce the issue, build the peripheral_lbs sample for the nrf7002dk_nrf5340_cpuapp board. The idle power consumption will be ~10uA. Then add
CONFIG_WIFI=y
CONFIG_WIFI_NRF700X=y
CONFIG_NETWORKING=y
CONFIG_NEWLIB_LIBC=y
CONFIG_WIFI_NRF700X=y
CONFIG_NETWORKING=y
CONFIG_NEWLIB_LIBC=y
to prj.conf and the idle power consumption will be almost 2mA.
How do I achieve <1mA combined idle power consumption with the nRF7002dk?
