nrf5340 radio test

RE: nrf5340 radio test

Sigurd — Fri, 07 May 2021 14:38:11 GMT

It's initialized with the SYS_INIT macro.

https://github.com/nrfconnect/sdk-nrf/blob/v1.5.1/samples/peripheral/radio_test/src/radio_cmd.c#L1344

RE: nrf5340 radio test

mingjkl — Fri, 07 May 2021 01:45:01 GMT

Thank you for your answer. I want to ask another question about radio test. I see that in the project of radio test, in the main (void) of main.c, the first execution is printk, and then clock_ Init (), but I can't see the initialization code of radio and UART. How did UART and radio start to work.

/*
 * Copyright (c) 2020 Nordic Semiconductor ASA
 *
 * SPDX-License-Identifier: LicenseRef-Nordic-5-Clause
 */

#include <sys/printk.h>
#include <drivers/clock_control.h>
#include <drivers/clock_control/nrf_clock_control.h>

static void clock_init(void)
{
	int err;
	int res;
	struct onoff_manager *clk_mgr;
	struct onoff_client clk_cli;

	clk_mgr = z_nrf_clock_control_get_onoff(CLOCK_CONTROL_NRF_SUBSYS_HF);
	if (!clk_mgr) {
		printk("Unable to get the Clock manager\n");
		return;
	}

	sys_notify_init_spinwait(&clk_cli.notify);

	err = onoff_request(clk_mgr, &clk_cli);
	if (err < 0) {
		printk("Clock request failed: %d\n", err);
		return;
	}

	do {
		err = sys_notify_fetch_result(&clk_cli.notify, &res);
		if (!err && res) {
			printk("Clock could not be started: %d\n", res);
			return;
		}
	} while (err);

	printk("Clock has started\n");
}

void main(void)
{
	printk("Starting Radio Test example\n");

	clock_init();
}

RE: nrf5340 radio test

Sigurd — Thu, 06 May 2021 09:02:02 GMT

[quote user="mingjkl"]Do these three com correspond to application core and network core respectively?[/quote]

Yes, from this link, we have the following:

When connected to the computer, the nRF5340 DK emulates three virtual COM ports. In the default configuration:

Logging output from the application core sample is available on the third (last) COM port.
Logging output from the network core (if available) is routed to the first COM port.
The second (middle) COM port is silent.

RE: nrf5340 radio test

mingjkl — Thu, 06 May 2021 06:13:35 GMT

Thank you for your reply. After connecting nrf5340dk, three com will appear in the serial communication tool. Do these three com correspond to application core and network core respectively?

RE: nrf5340 radio test

Sigurd — Wed, 05 May 2021 21:48:51 GMT

Hi,

[quote user=""]serial port returns the following[/quote]

Did you check the other serial ports? It might be that the output you are looking at here is the app-core serial port, just running empty_app_core, and you need to be looking at the network serial port?

PS: We recommend using PuTTY when testing the radio_test sample: https://developer.nordicsemi.com/nRF_Connect_SDK/doc/1.5.1/nrf/gs_testing.html#putty