nRF5340 how to Direct test mode in NCS2.0

[yoyou]

Hello

NCS2.0.2, nRF5340+nRF21540,  vscode

hwo to do Direct test mode with MT8852B? (PS: i konw how to test nRF52840)

i open the demo from:

C:\ncs\v2.0.2\nrf\samples\bluetooth\direct_test_mode

and add code to open 21540 to 20dB like this,

	gpio_pin_configure_dt(&sp_pdn_21540, GPIO_OUTPUT_ACTIVE);
	gpio_pin_set_dt(&sp_pdn_21540,1);		// high
		gpio_pin_configure_dt(&sp_csn_21540, GPIO_OUTPUT_ACTIVE);
		gpio_pin_set_dt(&sp_csn_21540,1);	// high
	gpio_pin_configure_dt(&sp_rxen_21540, GPIO_OUTPUT_ACTIVE);
	gpio_pin_set_dt(&sp_rxen_21540,1);		// high  enabled
		gpio_pin_configure_dt(&sp_mode_21540, GPIO_OUTPUT_ACTIVE);
		gpio_pin_set_dt(&sp_mode_21540,0);	// low  TX_Gain=POUTA(20dB)
	gpio_pin_configure_dt(&sp_antsel_21540, GPIO_OUTPUT_ACTIVE);
	gpio_pin_set_dt(&sp_antsel_21540,0);	// low ANT1
		gpio_pin_configure_dt(&sp_txen_21540, GPIO_OUTPUT_ACTIVE);
		gpio_pin_set_dt(&sp_txen_21540,1);	// high  enabled


	printk("Starting Direct Test Mode example\n");

nRF5340 is two core, is should choose cpuapp or cpunet? if choose cpuapp, the net core no hex.

   

build cpuapp or cpuapp_ns

  dtm.c:2118:24: error: 'RADIO_IRQn' undeclared

   

update SDK to NCS2.3.0 build error:

(PS:cpoy new project C:\ncs\v2.3.0\nrf\samples\bluetooth\direct_test_mode,   don't chang any code)

build cpuapp or cpuapp_ns

dtm.c:2185:35: error: 'NRF_RADIO' undeclared

build cpunet

main.c:73: undefined reference to `__device_dts_ord_66'

   

Best regards

[Sigurd Hellesvik]

From Bluetooth: Direct Test Mode docs, this sample supports the following boards:

nrf5340dk_nrf5340_cpunet or nrf21540dk_nrf52840.

Regards,
Sigurd Hellesvik

[yoyou]

Hi,  thanks for reply,

I have checked your link.

is means:

build \nrf\samples\bluetooth\direct_test_mode as nrf5340dk_nrf5340_cpunet, and download to net core,

app core no hex or download emptyapp(such as helloworld)?

if need set a pin to high for open peripheral power, it should write to app core or net core?

      

Best regards

[Sigurd Hellesvik]

It is a dts syntax error.

Do you want to create a new node, or edit an existing node?

New node required "/ {":

/ {
    nrf_radio_fem: nrf21540 {
  
};

But if you want to modify an existing node, you must use "&":

nrf_radio_fem: &nrf21450

Also, when I search for this in the nRF Connect SDK, I find it to be nrf21540_fem.
Not sure how which one you should use, but maybe worth looking into?

Regards,
Sigurd Hellesvik

[yoyou]

Hi, thanks for reply

if add \child_image\remote_shell.overlay, even a empty file, it will got build error:

C:\ncs\v2.0.2\zephyr\include\zephyr\device.h:96:39: error: '__device_dts_ord_DT_CHOSEN_zephyr_shell_ipc_ORD' undeclared (first use in this function)
96 | #define DEVICE_NAME_GET(name) _CONCAT(__device_, name)

      direct_test_mode.rar

see rar file

        

Best regards

[Sigurd Hellesvik]

I get another error when I try to build the project you uploaded.

Can you give instructions to how to build the project?
Which nRF Connect version?
Which board?

Any extra build arguments?

Regards,
Sigurd Hellesvik

[yoyou]

Hi

Windows10 X64

NCS2.0.2

VsCode 1.77.3

nRF Connect for VS Code     v2023.4.179

board: nRF5340-DK+nRF21540-EK

no extra build arguments,

   

Best regards

[Sigurd Hellesvik]

yoyou said:

  direct_test_mode.rar

When I build this project, with the configurations you mention, I get the following error:

=== child image empty_app_core - CPUAPP end ===

CMake Error at /home/sihe/ncs/nrf/cmake/multi_image.cmake:193 (message):
  A domain may only have a single child image.Current domain image is:
  empty_app_core, `empty_app_core` is a domain parent image, so you may add
  `remote_shell` as a child inside `empty_app_core`
Call Stack (most recent call first):
  /home/sihe/ncs/nrf/cmake/multi_image.cmake:150 (add_child_image_from_source)
  /home/sihe/ncs/nrf/samples/CMakeLists.txt:97 (add_child_image)

Is the project supposed to build successfully out of the box?

Regards,
Sigurd Hellesvik

[yoyou]

Hi

if delete the file and folder of "\child_image\remote_shell.overlay",will build successed.

bese on C:\ncs\v2.0.2\nrf\samples\bluetooth\direct_test_mode, i only want control follow pins in cpunet.

Why is it so difficult.  can you provide useful examples? (ncs2.0.2 or ncs2.3.0)

     

i'm testing DTM on board: nRF5340-DK+nRF21540-EK,

in fact, my product is a headphone that needs to be powered on through these pins to work

       

thanks

Best regards

[Sigurd Hellesvik]

Let's take one step back:

First, to build with the nRF-21540, we also must include "-DSHIELD=nrf21540_ek" to the build. See DTM docs.

Also, in v2.2.0 and above of the nRF Connect SDK, we have a Kconfig to DB for the nRF21540 in DTM: MPSL_FEM_NRF21540_TX_GAIN_DB.

If it is possible for you, upgrading to v2.2.0 is probably easier for setting DB.

Regards,
Sigurd Hellesvik

[yoyou]

Hi

chang to nRF Connect SDK 2.3.0

copy bese on  C:\ncs\v2.3.0\nrf\samples\bluetooth\direct_test_mode

if add -DSHIELD:STRING="nrf21540_ek", will build error!

do DTM on 5340,it take me a lot of time.

can you provide a complete project zip(contain build folder) bese on ncs2.3.0  direct_test_mode

and control follow pins in cpunet?

#ifdef FOR_TX
	nrf_gpio_cfg_output(0x1e);
	nrf_gpio_pin_set(0x1e);
		nrf_gpio_cfg_output(0x15);
		nrf_gpio_pin_set(0x15);
	nrf_gpio_cfg_output(0x29);
	nrf_gpio_pin_set(0x29);
		nrf_gpio_cfg_output(0x19);
		nrf_gpio_pin_clear(0x19);
#else
	nrf_gpio_cfg_output(0x18);
	nrf_gpio_pin_clear(0x18);
	nrf_gpio_cfg_output(0x10);
	nrf_gpio_pin_set(0x10);
#endif
	nrf_gpio_cfg_output(0x2b);//21540  pdn
	nrf_gpio_pin_set(0x2b);
		nrf_gpio_cfg_output(0x2c);//csn
		nrf_gpio_pin_set(0x2c);//high not ctrl spi
	nrf_gpio_cfg_output(0x25);//rxen
	nrf_gpio_pin_set(0x25);
		nrf_gpio_cfg_output(0x24);//mode
		nrf_gpio_pin_clear(0x24);
	nrf_gpio_cfg_output(0x26);//antsel
	nrf_gpio_pin_clear(0x26);
		nrf_gpio_cfg_output(0x27);//txen
		nrf_gpio_pin_set(0x27);

  

Best regards

[Sigurd Hellesvik]

7288.direct_test_mode.zip

This sample builds for me with v2.3.0 without issue.

Build log end:

Regards,
Sigurd Hellesvik

[yoyou]

Hi,

thanks for  reply

your zip is a sample in ncs2.3.0, i can build it success also.

but the same, i do'n know how to control pins in cpunet or in cpuapp ?

      

Best regards