nrf9160 custom device - nrfcloud cert connect failure

RE: nrf9160 custom device - nrfcloud cert connect failure

Heidi — Fri, 26 Feb 2021 09:50:14 GMT

That's good to hear. I will close this case then.

RE: nrf9160 custom device - nrfcloud cert connect failure

pctj101 — Fri, 26 Feb 2021 02:48:49 GMT

Heidi, no further action necessary. My Serial console (screen) was dropping bytes on the copy+paste leading to a format error. // wrote my own serial programmer.

Thanks for the feedback. It helped!

RE: nrf9160 custom device - nrfcloud cert connect failure

Heidi — Thu, 25 Feb 2021 15:51:03 GMT

Hi!

Thanks for the information. The AT commands look correct, as far as I can tell. Is the modem returning "OK" after you send each command?

Could you export the log file from the application so I can take a look?

Best regards,

Heidi

RE: nrf9160 custom device - nrfcloud cert connect failure

pctj101 — Wed, 24 Feb 2021 21:05:29 GMT

Also in my prj.conf I was sure to change my prefix for the nrf client prefix:

CONFIG_NRF_CLOUD_CLIENT_ID_PREFIX="tap-"

I also tried to hard code it:

CONFIG_COMPILER_OPT="-DNRF_CLOUD_CLIENT_ID=\"tap-352656102742411\""

I also tried various combinations of:

#+# NRF CLoud - src/certificates.h

#+CONFIG_PROVISION_CERTIFICATES=n

#+# NRF CLoud - AT*

#+#CONFIG_MODEM_KEY_MGMT=y

CONFIG_NRF_CLOUD_PROVISION_CERTIFICATES=y

But seeing that it's a format error, I guess we're not at this point yet... anyways, thought I'd share it in advance :)

RE: nrf9160 custom device - nrfcloud cert connect failure

pctj101 — Wed, 24 Feb 2021 21:03:02 GMT

Hello again!

Appreciate that you told me it's a format error. I'm sure that can be fixed.

Here's what I get after installing the certs:

AT%CMNG=1

%CMNG: 0,6,"0606060606060606060606060606060606060606060606060606060606060606"

%CMNG: 16842753,0,"0000000000000000000000000000000000000000000000000000000000000000"

%CMNG: 16842753,1,"0101010101010101010101010101010101010101010101010101010101010101"

%CMNG: 16842753,2,"0202020202020202020202020202020202020202020202020202020202020202"

And let me try to attach my AT commands (which are converted from the original downloaded JSON.. forgive me if I attached the wrong JSON file. I downloaded so many that perhaps some got mixed. But I'm sure you'll be able to tell me if my AT commands are obviously wrong)

devzone.nordicsemi.com/.../tap_2D00_352656102742411.cert.jsonf.json.txt devzone.nordicsemi.com/.../tap_2D00_352656102742411.cert.jsonf.json.orig.txt

Thank you again Heidi!

RE: nrf9160 custom device - nrfcloud cert connect failure

Heidi — Wed, 24 Feb 2021 14:35:23 GMT

Hi!

-8 is a format error so most likely the certificates were not provisioned correctly.

Please show me the output from the device when provisioning the certificates (preferably in a text file).

[quote user=""]Can you recommend a mosquitto_pub or _sub command with a -t 'topic_path' that I could use to test my certificates?[/quote]

If you mean as an AT command, the Serial LTE Modem application has some proprietary MQTT AT commands that you can use to connect via MQTT (#XMQTTSUB and #XMQTTPUB). But I don't know how that would test your certificates, as they are used with nRF Connect for Cloud, not Mosquitto.

2) You can set "CONFIG_LTE_LINK_CONTROL_LOG_LEVEL_DBG" to get a more detailed output.

Best regards,

Heidi