Onomondo static profile with nrf9161 custom board not working

[simon884]

Hi,

I'm working with a custom board build with an nrf9161, I've created my board from nrf9161dk board (change some pin and defintion), I'm able to flash and build? I can use my custom led, my i2c bus, so I thought my custom board is well defined.

Right now I'm trying to use onomondo softsim profile, but ùy softsim never connect. To debug I've tried to do this here but same result not working. Just to know I have tried my source code with nordic nrf9160dk and it's working I'm able to have lte event and I can see my sim connected on onomondo, so the bug is not on my code...

Here is AT command I have tried :

[00:00*** Booting nRF Connect SDK v3.5.99-ncs1-1 ***
[00:00:00.326,324] <inf> nrf_modem: Initializing libmodem 2.6.1-lte-11b6ed4846a8
[00:00:00.570,983] <inf> nrf_modem: RPC ready
[00:00:00.619,964] <inf> gcg: Waiting for LTE connect event.

> AT
OK
> AT+CEREG?
+CEREG: 5,4
OK
+CEREG: 2,"E29D","09891B07",7
[00:03:30.427,307] <inf> gcg: LTE cell changed: Cell ID: 159980295, Tracking area: 58013 //always got only this event only, and look strange this event take always some time to come..

> AT+CEREG?
+CEREG: 5,2,"E29D","09891B07",7  // should have +CEREG: 1,5 from onomondo tutorial
OK

> AT+CESQ
+CESQ: 99,99,255,255,16,58
OK

> AT+CEREG=1
OK
> AT+COPS?
+COPS: 0
OK
> AT+CGDCONT=1,"IP","onomondo"
OK
> AT+CGACT=1,1
ERROR

> AT+CGMR
mfw_nrf91x1_2.0.1
OK

I can upload my board definition, tell me. Don't understand why it's working on 9160dk and not on my board, maybe bad board definition, I hope it's not an hardware issue with my custom board

Thanks for help

[Asbjørn]

Hi Simon,

regarding the capturing of the trace. You have to cpature it to a file and open it.

https://docs.nordicsemi.com/bundle/nrfutil/page/nrfutil-trace/guides/tracing_9160_modem_binary.html

The antenna connection, are you able to see TX operation from your board with a spectrum analyser? Again, I don't know what the HW looks like, but the antenna connection is definitely something to follow. I suspect the receiver on the nRF91 on your custom board is able to receive singals from the network, but the outgoing connection request and TX operations are not getting through back to the network. Placement of the antenna and location of the kit compared to windows and obstacles is worth testing out. 

Best regards

Asbjørn

[simon884]

Hi Asbjørn

When I'm trying to capture with nrfutil my trace is always zero octet.

./nrfutil device list
101c4425765aed11b7fd8a1d4f779c9c
product         CP2102N USB to UART Bridge Controller
ports           /dev/tty.usbserial-14320
traits          serialPorts, usb

1
product         CP2102 USB to UART Bridge Controller
ports           /dev/tty.usbserial-0001
traits          serialPorts, usb

Found 2 supported device(s)

usbserial-0001 is cp21 where uart1 is connected (if I use nrf serial terminal with 1000000 baudrate I see datas)

./nrfutil trace lte --input-serialport /dev/tty.usbserial-0002 --output-raw trace.raw

trace.raw is always empty... Don't understand why because I see my cp21 rx led blinking

For my nrf here is the part of my schematic for LTE

[Asbjørn]

simon884 said:

usbserial-0001 is cp21 where uart1 is connected (if I use nrf serial terminal with 1000000 baudrate I see datas)

Fullscreen

usbserial-001 is where the uart1 is connected, but you usbserial-0002 as input for capturing the trace? Is this a typo is there something I'm not seeing there? What happens if you use usbserial0001 for the trace capture command?

The radio part of the design schematic looks as the connector we have used on the nRF91xx-DK. Do you have some sort of spectrum analyzer available to verify the output from the cable once connected to the J1 connector? The flex antenna you are using, does that work with the DK you have available with the nRF9160?

Best regards

Asbjørn

[simon884]

Asbjørn said:

usbserial-001 is where the uart1 is connected, but you usbserial-0002 as input for capturing the trace? Is this a typo is there something I'm not seeing there? What happens if you use usbserial0001 for the trace capture command?

Sorry it's a typo error, I'm using usbserial-0001 for capturing data without success, trace;raw is always empty.

Here is what I got if I'm using serial terminal on usbserial-0001

Fullscreen serial-terminal-02122024_113519.txt Download

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Asbjørn said:

Do you have some sort of spectrum analyzer available

Unfortunately no I don't have it

Asbjørn said:

The flex antenna you are using, does that work with the DK you have available with the nRF9160?

I can test it

[Asbjørn]

Hi Simon,

Did you get a chance to try the flex antenna on the nRF9160 DK? What did you find from that?

Best regards

Asbjørn

[simon884]

Hi Asbjørn

Sorry for the delay, I was on another project. Right now I can get trace from UART1 and my modem. I've attached to you the mtrace file give by cellular monitor. The file contains all trace beetwen boot and

+CEREG: 2,"C40D","09891BCF",9
[00:03:33.222,625] <inf> GCG_DNV: LTE cell changed: Cell ID: 159980495, Tracking area: 50189

trace-2025-01-20T16-10-55.824Z.mtrace

Are you able to see something? I don’t understand why I have no packet when I’m loading mtrace file to nrt monitor, However, I have a data in my file… As I'm using mfw_nrf91x1_2.0.2 I've selected 2.0.2 in modem trace database in cellular monitor

It's look like cellular monitor can't send AT command to my custom board

EDIT : I've trie to test AT_MONITOR on my custom board here is the result :

*** Booting nRF Connect SDK v3.5.99-ncs1-1 ***
AT Monitor sample started
[00:00:01.415,618] <inf> nrf_modem_lib_trace: Trace thread ready
[00:00:01.417,022] <inf> nrf_modem_lib_trace: Trace level override: 2
Subscribing to notifications
Connecting to network
Resuming link quality monitor for AT notifications
Waiting for network
Network connection timed out
Continuing without network
Pausing link quality monitor for AT notifications
Reading PSM info...
  PSM: disabled
Enabling PSM
Reading PSM info...
  PSM: disabled
  Periodic TAU string: 
  Active time string: 00100001
Modem response:
+CEREG: 1,4
OK
Shutting down modem
+CEREG: 0
Network registration status: no network
[00:00:21.833,587] <inf> nrf_modem_lib_trace: Modem was turned off, no more traces
Bye

EDIT 2 : I've just received nrf9161dk board, and my code works also on this board. I use nrf9161dk non secure

[Asbjørn]

Hi Simon,

Are you still not able to make the connection or did you do something to your kit? Is this a different problem or is it the same you had two months ago?

All code is running as expected, how are you confirming this?

So the mtrace file states that there's nothing captured in it. Was this tried with your custom board? Are you able to capture somethign successfully with one of our DKs and your code?

Best regards

Asbjørn

[simon884]

Asbjørn said:

Are you still not able to make the connection or did you do something to your kit? Is this a different problem or is it the same you had two months ago?

Yes I have always the same problem :(

Asbjørn said:

All code is running as expected, how are you confirming this

yes all code works fine on nrf9160dk and nrf9161dk all in non Secure. I can confirm this because I’m able to reach onomondo and i'm connected to LTE. But the same code doesn’t work on my custom board build with nrf9161 in non secure also. 

Asbjørn said:

So the mtrace file states that there's nothing captured in it. Was this tried with your custom board? Are you able to capture somethign successfully with one of our DKs and your code

ok understood but why my file size is 7.5MB what is inside? I don’t try with dk board; It's look like cellular monitor can't send AT command over uart1

[dejans]

Hi Simon,

Your trace file cannot be opened in Cellular Monitor or converted to pcap. It seems that the file got corrupted or was not uploaded properly. Can you take new modem trace and upload it? Please verify that it can be opened in the Cellular Monitor before uploading.

Best regards,
Dejan