how 528323 reduce power consumes with freertos ?

RE: how 528323 reduce power consumes with freertos ?

Jørgen Holmefjord — Mon, 07 Jan 2019 16:23:22 GMT

What do you mean by this?

[quote user="chenzp531"]shield the sd_power_system_off() in the sleep_mode_enter(),and shield the application_timers_start()[/quote]

If you enter system off mode, the current should be low ~400 nA. If you run app_timer(s) and do BLE advertising, an average current of 15 uA could be correct. Try disabling parts of your application to see if you are able to reduce the current consumption.

RE: how 528323 reduce power consumes with freertos ?

chenzp531 — Mon, 07 Jan 2019 01:42:00 GMT

Thanks for the reply.I use the SDK13.0,shield the sd_power_system_off() in the sleep_mode_enter(),and shield the application_timers_start(),when into the BLE_ADV_EVT_IDLE event,the system consumes is15uA.There are other tasks running?

RE: how 528323 reduce power consumes with freertos ?

Jørgen Holmefjord — Fri, 04 Jan 2019 10:12:19 GMT

Hi,

Are you running any timers or tasks that will generate interrupts? If you are seeing ~15 uA current, the CPU is sleeping and there is some other peripheral running that is consuming the additional current. Are you testing this on a nRF52 DK, or on a custom board? Have you tried updating to the latest SDK (v15.2.0) and the FreeRTOS version available there? There might be some bug-fixes included.

Best regards,
Jørgen