can't find board nrf52833dk_nrf5283 in bluetooth DTM sample

[christopheMon]

Hello,

I have a project in Visual studio code and Nrf connect.

MCU is a NRF 52833.

For the certicications, the lab request me the DTM mode.

I tried the use the Sample - Direct-test-mode Firmware

However I'm not able to find eht board "nrf52833dk_nrf5283" in the NCS folder.

I tried to install several SDKs (2.2.0 / 2.3.0 / 2.4.2 / 2.7.0 / 2.9.2 / 3.2.4 ) but none includes the 833 board. I can find and compile with the 840, but no options for the 833.

Please can sombody help me ? I need to use and compile the DTM for the 52833.

Thanks in advance

[Kenneth]

Hi,

If you choose Nordic Kits you can build for nRF52833dk like this:

But I assume you are not using direction finding, so you need to disable it by either adding to app.overlay:

&radio {
	/delete-property/ dfe-supported;
};

Or build as described here: 
https://docs.nordicsemi.com/bundle/ncs-latest/page/nrf/samples/bluetooth/direct_test_mode/README.html#disabling_direction_finding_feature 

Kenneth

[christopheMon]

hello, thanks for your reply, however, with the Nordic Kit selection, (and not the Compatible), impossible to compile the code...

I can compile selecting the nRF52840 only...

how to get just a simple code for DTM for the 833 ?

Also don't you have example with the USB communication ?

I can't understant how all people using nrf devices have to certificate them then every body have to use the DTM too... nothing is proposed for this ? I mean PC software - USB control and DTM for most nrf devices ?

So in my case, I need to create a new board to use with the DTM as the 52833 is not available...right ?

[christopheMon]

after checking, the pin 0.22 is not configured.

No pull-up configured. without connections to the external FTDI device, the pin is always 0V.

[Kenneth]

Try a pristine build, or manually delete the build folder before building.

Kenneth

[christopheMon]

each time I build I do that... first I delete build then I build a new... the issue is not here... but my overlay seems still not taken in account

[christopheMon]

Hello again,

after some tests, I can built code on a DK 52832 that works well without the X2 Quartz mounted. So the PRJ.conf if working adding XTAL lines. also I can change the UART pin with the app.overlay. So the code seems ok.

However, on my final PCB, using the DK52833, addin same overlay and config lines, it is not working.

I see that the MCU don't start, no 32MHz on the cristal.

This means something is crashing on startup before or while initializing the CLOCK.

What could be different between the DK and a standatd custom PCB ? 

[Kenneth]

Can you share the DTM project you have at the moment? And also how you build it?

Kenneth

[christopheMon]

Now simple project built correctly with visual studio code Build option.

but before I was building it with command: west build -b nrf52833dk/nrf52833

attached is my whole project ( radio test)radio_test_CMO.zip

[christopheMon]

can't it be an issue for the 52833 as it is not mentionned in the yalm file... ?

[christopheMon]

Hello,

any news ?

I really need to solve this issue as certification Lab is waiting on me....

In summarry, the 52832 DK is working, with and also without 32K Quartz, but custom PCB with 52833 without 32K is not starting ( no init, not periferals configured, no 32MHz oscillation).

But on this same custom board, the dedicated custome program is running well.

What differences ??

please

[christopheMon]

Hello,

today, I received the PCA10100 with the nrf52833 MCU. and tried for the radio test Sample:

1- HW with 32KHz + 32MHz, built "nrf52833DK_nrf52833" standard : Working OK

2- HW with 32KHz disconnected, built "nrf52833DK_nrf52833" standard : Crash on start and no init !

3- HW with 32KHz disconnected, built including 32K RC activation : Working OK

 

On my custom HW:

1- HW with only 32MHz, no 32KHz, FW of my application, board curstom for my application : working OK

2- HW with only 32MHz, no 32KHz, FW "radio test", built "nrf52833DK_nrf52833" standard : Crash on start and no init !

3- HW with only 32MHz, no 32KHz, FW "radio test", built "nrf52833DK_nrf52833" including 32K RC activation : Crash on start and no init !

Building with my cusom board is complicate because you are linking and using libraries that I need to add or modify, then lots of efforts to compile with my cusom board.

So it really seems that something your DK board is initializing, or using HW on your DK PCB that I don't have on my custom PCB.

Can you help me ?