How to completely turn off the radio (power consumption test)

RE: How to completely turn off the radio (power consumption test)

Leo Mo — Fri, 12 Sep 2025 06:42:38 GMT

Hi Kenneth,

Thank you very much! I fixed it.

Code:

static struct onoff_manager *get_mgr(void)
{
	return z_nrf_clock_control_get_onoff(CLOCK_CONTROL_NRF_SUBSYS_HF);
}

static bool clock_is_off(void)
{
	const struct device *const clk = DEVICE_DT_GET_ONE(nordic_nrf_clock);

	if (!device_is_ready(clk)) {
		
		LOG_ERR("Device is not ready");	
	}

	return clock_control_get_status(clk, CLOCK_CONTROL_NRF_SUBSYS_HF) ==
			CLOCK_CONTROL_STATUS_OFF;
}

static void clock_off(void)
{
	struct onoff_manager *mgr = get_mgr();

	do {
		(void)onoff_release(mgr);

	} while (!clock_is_off());
}

static void clock_set(bool on_off)
{
	struct onoff_client cli;
	struct onoff_manager *mgr = get_mgr();
	int err = 0;

	if (on_off) {

		sys_notify_init_spinwait(&cli.notify);
		err = onoff_request(mgr, &cli);
		
		if (err >= 0) {

			while (sys_notify_fetch_result(&cli.notify, &err) < 0) {
				/* empty */
			}
		} 
	} else {

		clock_off();
	}
	
	LOG_INF("Clock set %s, err %d", on_off?"on":"off", err);
}

RE: How to completely turn off the radio (power consumption test)

Kenneth — Mon, 11 Aug 2025 11:11:55 GMT

Hi,

The current consumption is pretty inline with hfclk is running, can you look at trying to stop the hfclk if you haven't already?

Kenneth

RE: How to completely turn off the radio (power consumption test)

Leo Mo — Thu, 24 Jul 2025 08:10:59 GMT

runsiv

Hi runsiv

I have fully ported the radio_test code now, but even after turning off the radio, there is still a current of 480+uA.

RE: How to completely turn off the radio (power consumption test)

Leo Mo — Wed, 23 Jul 2025 07:40:03 GMT

In my application, there is no CLI.

RE: How to completely turn off the radio (power consumption test)

runsiv — Tue, 22 Jul 2025 12:34:59 GMT

Hi Leo

I will look into your case. Just from the looks of it, it seems like you have modified the sample. Is this correct? Normally you would configure the application over CLI, are you doing it?
Regards

Runar