nRF9160 MQTT + TLS + PSM

RE: nRF9160 MQTT + TLS + PSM

wne — Fri, 19 Jul 2019 09:56:12 GMT

Okay, I get the at_client work by setting AT%XSYSTEMMODE=0,1,0,0 and then shutting the modem down with AT+CFUN=0 plus a reset (inspired by your linked blog ^^). After that, I tested the mqtt_simple_sample and it works just fine. The same does my application. So thanks a lot.

Could you please explain a bit, what the uicr_tcxo.hex has effected?

Thanks and kind regards.

RE: nRF9160 MQTT + TLS + PSM

Håkon Alseth — Fri, 19 Jul 2019 08:16:42 GMT

Could you provide a trace of this issue?

Here's a blog that explains how: https://devzone.nordicsemi.com/nordic/nordic-blog/b/blog/posts/how-to-get-modem-trace-using-trace-collector-in-nrf-connect

It is essentially this config that is needed in prj.conf:

CONFIG_BSD_LIBRARY_TRACE_ENABLED=y

Note that you need to input "AT%XMODEMTRACE=1,2" first, before turning on the modem.

This should produce a .bin file in the nRF Connect app "Trace Collector" which you could upload to this thread.

Kind regards,

Håkon

RE: nRF9160 MQTT + TLS + PSM

wne — Fri, 19 Jul 2019 07:48:45 GMT

Yes, I tried it. Same result:

2019-07-19T06:47:59.993Z DEBUG modem << ***** Booting Zephyr OS v1.14.99-ncs2 *****\x0D\x0A
2019-07-19T06:47:59.997Z DEBUG modem << The AT host sample started\x0D\x0A
2019-07-19T06:48:15.031Z DEBUG modem >> AT%XSYSTEMMODE=0,1,0,0\x0D\x0A
2019-07-19T06:48:15.068Z DEBUG modem << OK\x0D\x0A\x00
2019-07-19T06:48:18.412Z DEBUG modem >> AT+CFUN?\x0D\x0A
2019-07-19T06:48:18.456Z DEBUG modem << +CFUN: 4\x0D\x0A
2019-07-19T06:48:18.522Z DEBUG modem << OK\x0D\x0A\x00
2019-07-19T06:48:18.556Z DEBUG modem >> AT+CFUN=1\x0D\x0A
2019-07-19T06:48:18.606Z DEBUG modem << OK\x0D\x0A\x00
2019-07-19T06:48:22.618Z DEBUG modem >> AT+CFUN?\x0D\x0A
2019-07-19T06:48:23.619Z ERROR Error: 'AT+CFUN?
' timed out

I programmed your .hex file and retried the at_client. No changes, same problems.

Kind regards.

RE: nRF9160 MQTT + TLS + PSM

Håkon Alseth — Thu, 18 Jul 2019 12:50:25 GMT

That is strange. Have you tried setting XSYSTEMMODE just after boot, and before issuing CFUN=1?

Could you try programming this .hex file? "nrfjprog --program uicr_tcxo.hex --sectorerase -f nrf91 --reset"

devzone.nordicsemi.com/.../uicr_5F00_tcxo.hex

RE: nRF9160 MQTT + TLS + PSM

wne — Thu, 18 Jul 2019 08:01:59 GMT

Hi Håkon,

I tested the default mqtt_simple_sample and asset_tracker again (just modified LTE configs to use NB-IoT and the legacy PCO mode) and noticed, that the code doesn't stuck on the at_cmd_write(normal, NULL, 0, NULL) != 0) line. The modem gets a response and stucks in the next line: k_sem_take(&link, K_FOREVER).

In at_client there is a communication via AT-commands possible, like the following log shows:

2019-07-18T07:44:13.551Z INFO Modem port is opened
2019-07-18T07:44:13.583Z DEBUG modem >> AT+CFUN?\x0D\x0A
2019-07-18T07:44:42.084Z DEBUG modem << ***** Booting Zephyr OS v1.14.99-ncs2 *****\x0D\x0A
2019-07-18T07:44:42.130Z DEBUG modem << Flash region\x09\x09Domain\x09\x09Permissions\x0D\x0A
2019-07-18T07:44:42.139Z DEBUG modem << 00 0x00000 0x08000 \x09Secure\x09\x09rwxl\x0D\x0A
2019-07-18T07:44:42.149Z DEBUG modem << 01 0x08000 0x10000 \x09Non-Secure\x09rwxl\x0D\x0A
2019-07-18T07:44:42.158Z DEBUG modem << 02 0x10000 0x18000 \x09Non-Secure\x09rwxl\x0D\x0A
2019-07-18T07:44:42.164Z DEBUG modem << 03 0x18000 0x20000 \x09Non-Secure\x09rwxl\x0D\x0A
2019-07-18T07:44:42.170Z DEBUG modem << 04 0x20000 0x28000 \x09Non-Secure\x09rwxl\x0D\x0A
2019-07-18T07:44:42.180Z DEBUG modem << 05 0x28000 0x30000 \x09Non-Secure\x09rwxl\x0D\x0A
2019-07-18T07:44:42.227Z DEBUG modem << 06 0x30000 0x38000 \x09Non-Secure\x09rwxl\x0D\x0A
2019-07-18T07:44:42.235Z DEBUG modem << 07 0x38000 0x40000 \x09Non-Secure\x09rwxl\x0D\x0A
2019-07-18T07:44:42.241Z DEBUG modem << 08 0x40000 0x48000 \x09Non-Secure\x09rwxl\x0D\x0A
2019-07-18T07:44:42.248Z DEBUG modem << 09 0x48000 0x50000 \x09Non-Secure\x09rwxl\x0D\x0A
2019-07-18T07:44:42.258Z DEBUG modem << 10 0x50000 0x58000 \x09Non-Secure\x09rwxl\x0D\x0A
2019-07-18T07:44:42.268Z DEBUG modem << 11 0x58000 0x60000 \x09Non-Secure\x09rwxl\x0D\x0A
2019-07-18T07:44:42.278Z DEBUG modem << 12 0x60000 0x68000 \x09Non-Secure\x09rwxl\x0D\x0A
2019-07-18T07:44:42.285Z DEBUG modem << 13 0x68000 0x70000 \x09Non-Secure\x09rwxl\x0D\x0A
2019-07-18T07:44:42.291Z DEBUG modem << 14 0x70000 0x78000 \x09Non-Secure\x09rwxl\x0D\x0A
2019-07-18T07:44:42.296Z DEBUG modem << 15 0x78000 0x80000 \x09Non-Secure\x09rwxl\x0D\x0A
2019-07-18T07:44:42.311Z DEBUG modem << 16 0x80000 0x88000 \x09Non-Secure\x09rwxl\x0D\x0A
2019-07-18T07:44:42.317Z DEBUG modem << 17 0x88000 0x90000 \x09Non-Secure\x09rwxl\x0D\x0A
2019-07-18T07:44:42.321Z DEBUG modem << 18 0x90000 0x98000 \x09Non-Secure\x09rwxl\x0D\x0A
2019-07-18T07:44:42.326Z DEBUG modem << 19 0x98000 0xa0000 \x09Non-Secure\x09rwxl\x0D\x0A
2019-07-18T07:44:42.331Z DEBUG modem << 20 0xa0000 0xa8000 \x09Non-Secure\x09rwxl\x0D\x0A
2019-07-18T07:44:42.337Z DEBUG modem << 21 0xa8000 0xb0000 \x09Non-Secure\x09rwxl\x0D\x0A
2019-07-18T07:44:42.342Z DEBUG modem << 22 0xb0000 0xb8000 \x09Non-Secure\x09rwxl\x0D\x0A
2019-07-18T07:44:42.349Z DEBUG modem << 23 0xb8000 0xc0000 \x09Non-Secure\x09rwxl\x0D\x0A
2019-07-18T07:44:42.356Z DEBUG modem << 24 0xc0000 0xc8000 \x09Non-Secure\x09rwxl\x0D\x0A
2019-07-18T07:44:42.363Z DEBUG modem << 25 0xc8000 0xd0000 \x09Non-Secure\x09rwxl\x0D\x0A
2019-07-18T07:44:42.369Z DEBUG modem << 26 0xd0000 0xd8000 \x09Non-Secure\x09rwxl\x0D\x0A
2019-07-18T07:44:42.373Z DEBUG modem << 27 0xd8000 0xe0000 \x09Non-Secure\x09rwxl\x0D\x0A
2019-07-18T07:44:42.378Z DEBUG modem << 28 0xe0000 0xe8000 \x09Non-Secure\x09rwxl\x0D\x0A
2019-07-18T07:44:42.386Z DEBUG modem << 29 0xe8000 0xf0000 \x09Non-Secure\x09rwxl\x0D\x0A
2019-07-18T07:44:42.391Z DEBUG modem << 30 0xf0000 0xf8000 \x09Non-Secure\x09rwxl\x0D\x0A
2019-07-18T07:44:42.395Z DEBUG modem << 31 0xf8000 0x100000 \x09Non-Secure\x09rwxl\x0D\x0A
2019-07-18T07:44:42.437Z DEBUG modem << Non-secure callable region 0 placed in flash region 0 with size 32.\x0D\x0A\x0D\x0A\x0D\x0A
2019-07-18T07:44:42.442Z DEBUG modem << SRAM region\x09\x09Domain\x09\x09Permissions\x0D\x0A
2019-07-18T07:44:42.446Z DEBUG modem << 00 0x00000 0x02000\x09Secure\x09\x09rwxl\x0D\x0A
2019-07-18T07:44:42.450Z DEBUG modem << 01 0x02000 0x04000\x09Secure\x09\x09rwxl\x0D\x0A
2019-07-18T07:44:42.454Z DEBUG modem << 02 0x04000 0x06000\x09Secure\x09\x09rwxl\x0D\x0A
2019-07-18T07:44:42.458Z DEBUG modem << 03 0x06000 0x08000\x09Secure\x09\x09rwxl\x0D\x0A
2019-07-18T07:44:42.463Z DEBUG modem << 04 0x08000 0x0a000\x09Secure\x09\x09rwxl\x0D\x0A
2019-07-18T07:44:42.467Z DEBUG modem << 05 0x0a000 0x0c000\x09Secure\x09\x09rwxl\x0D\x0A
2019-07-18T07:44:42.476Z DEBUG modem << 06 0x0c000 0x0e000\x09Secure\x09\x09rwxl\x0D\x0A
2019-07-18T07:44:42.482Z DEBUG modem << 07 0x0e000 0x10000\x09Secure\x09\x09rwxl\x0D\x0A
2019-07-18T07:44:42.491Z DEBUG modem << 08 0x10000 0x12000\x09Non-Secure\x09rwxl\x0D\x0A
2019-07-18T07:44:42.499Z DEBUG modem << 09 0x12000 0x14000\x09Non-Secure\x09rwxl\x0D\x0A
2019-07-18T07:44:42.505Z DEBUG modem << 10 0x14000 0x16000\x09Non-Secure\x09rwxl\x0D\x0A
2019-07-18T07:44:42.514Z DEBUG modem << 11 0x16000 0x18000\x09Non-Secure\x09rwxl\x0D\x0A
2019-07-18T07:44:42.523Z DEBUG modem << 12 0x18000 0x1a000\x09Non-Secure\x09rwxl\x0D\x0A
2019-07-18T07:44:42.527Z DEBUG modem << 13 0x1a000 0x1c000\x09Non-Secure\x09rwxl\x0D\x0A
2019-07-18T07:44:42.537Z DEBUG modem << 14 0x1c000 0x1e000\x09Non-Secure\x09rwxl\x0D\x0A
2019-07-18T07:44:42.545Z DEBUG modem << 15 0x1e000 0x20000\x09Non-Secure\x09rwxl\x0D\x0A
2019-07-18T07:44:42.552Z DEBUG modem << 16 0x20000 0x22000\x09Non-Secure\x09rwxl\x0D\x0A
2019-07-18T07:44:42.561Z DEBUG modem << 17 0x22000 0x24000\x09Non-Secure\x09rwxl\x0D\x0A
2019-07-18T07:44:42.572Z DEBUG modem << 18 0x24000 0x26000\x09Non-Secure\x09rwxl\x0D\x0A
2019-07-18T07:44:42.576Z DEBUG modem << 19 0x26000 0x28000\x09Non-Secure\x09rwxl\x0D\x0A
2019-07-18T07:44:42.580Z DEBUG modem << 20 0x28000 0x2a000\x09Non-Secure\x09rwxl\x0D\x0A
2019-07-18T07:44:42.589Z DEBUG modem << 21 0x2a000 0x2c000\x09Non-Secure\x09rwxl\x0D\x0A
2019-07-18T07:44:42.595Z DEBUG modem << 22 0x2c000 0x2e000\x09Non-Secure\x09rwxl\x0D\x0A
2019-07-18T07:44:42.604Z DEBUG modem << 23 0x2e000 0x30000\x09Non-Secure\x09rwxl\x0D\x0A
2019-07-18T07:44:42.610Z DEBUG modem << 24 0x30000 0x32000\x09Non-Secure\x09rwxl\x0D\x0A
2019-07-18T07:44:42.614Z DEBUG modem << 25 0x32000 0x34000\x09Non-Secure\x09rwxl\x0D\x0A
2019-07-18T07:44:42.618Z DEBUG modem << 26 0x34000 0x36000\x09Non-Secure\x09rwxl\x0D\x0A
2019-07-18T07:44:42.631Z DEBUG modem << 27 0x36000 0x38000\x09Non-Secure\x09rwxl\x0D\x0A
2019-07-18T07:44:42.636Z DEBUG modem << 28 0x38000 0x3a000\x09Non-Secure\x09rwxl\x0D\x0A
2019-07-18T07:44:42.639Z DEBUG modem << 29 0x3a000 0x3c000\x09Non-Secure\x09rwxl\x0D\x0A
2019-07-18T07:44:42.643Z DEBUG modem << 30 0x3c000 0x3e000\x09Non-Secure\x09rwxl\x0D\x0A
2019-07-18T07:44:42.647Z DEBUG modem << 31 0x3e000 0x40000\x09Non-Secure\x09rwxl\x0D\x0A\x0D\x0A
2019-07-18T07:44:42.651Z DEBUG modem << Peripheral\x09\x09Domain\x09\x09Status\x0D\x0A
2019-07-18T07:44:42.656Z DEBUG modem << 00 NRF_P0\x09\x09Non-Secure\x09OK\x0D\x0A
2019-07-18T07:44:42.660Z DEBUG modem << 01 NRF_CLOCK\x09\x09Non-Secure\x09OK\x0D\x0A
2019-07-18T07:44:42.663Z DEBUG modem << 02 NRF_RTC1\x09\x09Non-Secure\x09OK\x0D\x0A
2019-07-18T07:44:42.668Z DEBUG modem << 03 NRF_NVMC\x09\x09Non-Secure\x09OK\x0D\x0A
2019-07-18T07:44:42.673Z DEBUG modem << 04 NRF_UARTE1\x09\x09Non-Secure\x09OK\x0D\x0A
2019-07-18T07:44:42.677Z DEBUG modem << 05 NRF_UARTE2\x09\x09Secure\x09\x09SKIP\x0D\x0A
2019-07-18T07:44:42.684Z DEBUG modem << 06 NRF_TWIM2\x09\x09Non-Secure\x09OK\x0D\x0A
2019-07-18T07:44:42.694Z DEBUG modem << 07 NRF_SPIM3\x09\x09Non-Secure\x09OK\x0D\x0A
2019-07-18T07:44:42.699Z DEBUG modem << 08 NRF_TIMER0\x09\x09Non-Secure\x09OK\x0D\x0A
2019-07-18T07:44:42.704Z DEBUG modem << 09 NRF_TIMER1\x09\x09Non-Secure\x09OK\x0D\x0A
2019-07-18T07:44:42.710Z DEBUG modem << 10 NRF_TIMER2\x09\x09Non-Secure\x09OK\x0D\x0A
2019-07-18T07:44:42.721Z DEBUG modem << 11 NRF_SAADC\x09\x09Non-Secure\x09OK\x0D\x0A
2019-07-18T07:44:42.727Z DEBUG modem << 12 NRF_PWM0\x09\x09Non-Secure\x09OK\x0D\x0A
2019-07-18T07:44:42.731Z DEBUG modem << 13 NRF_PWM1\x09\x09Non-Secure\x09OK\x0D\x0A
2019-07-18T07:44:42.735Z DEBUG modem << 14 NRF_PWM2\x09\x09Non-Secure\x09OK\x0D\x0A
2019-07-18T07:44:42.739Z DEBUG modem << 15 NRF_PWM3\x09\x09Non-Secure\x09OK\x0D\x0A
2019-07-18T07:44:42.743Z DEBUG modem << 16 NRF_IPC\x09\x09Non-Secure\x09OK\x0D\x0A
2019-07-18T07:44:42.746Z DEBUG modem << 17 NRF_VMC\x09\x09Non-Secure\x09OK\x0D\x0A
2019-07-18T07:44:42.749Z DEBUG modem << 18 NRF_FPU\x09\x09Non-Secure\x09OK\x0D\x0A
2019-07-18T07:44:42.753Z DEBUG modem << 19 NRF_EGU1\x09\x09Non-Secure\x09OK\x0D\x0A
2019-07-18T07:44:42.757Z DEBUG modem << 20 NRF_EGU2\x09\x09Non-Secure\x09OK\x0D\x0A
2019-07-18T07:44:42.761Z DEBUG modem << 21 NRF_GPIOTE1\x09\x09Non-Secure\x09OK\x0D\x0A\x0D\x0A
2019-07-18T07:44:42.766Z DEBUG modem << SPM: NS image at 0xc000\x0D\x0A
2019-07-18T07:44:42.770Z DEBUG modem << SPM: NS MSP at 0x20023b68\x0D\x0A
2019-07-18T07:44:42.776Z DEBUG modem << SPM: NS reset vector at 0xe325\x0D\x0A
2019-07-18T07:44:42.780Z DEBUG modem << SPM: prepare to jump to Non-Secure image.\x0D\x0A
2019-07-18T07:44:43.919Z DEBUG modem << ***** Booting Zephyr OS v1.14.99-ncs2 *****\x0D\x0A
2019-07-18T07:44:43.953Z DEBUG modem << The AT host sample started\x0D\x0A
2019-07-18T07:44:48.947Z DEBUG modem >> AT+CFUN?\x0D\x0A
2019-07-18T07:44:49.006Z DEBUG modem << +CFUN: 4\x0D\x0A
2019-07-18T07:44:49.066Z DEBUG modem << OK\x0D\x0A\x00
2019-07-18T07:44:49.104Z DEBUG modem >> AT+CFUN=1\x0D\x0A
2019-07-18T07:44:49.155Z DEBUG modem << OK\x0D\x0A\x00
2019-07-18T07:44:51.736Z DEBUG modem >> AT+CFUN?\x0D\x0A
2019-07-18T07:44:51.745Z DEBUG modem << +CFUN: 1\x0D\x0A
2019-07-18T07:44:51.812Z DEBUG modem << OK\x0D\x0A\x00
2019-07-18T07:44:51.851Z DEBUG modem >> AT+CGSN=1\x0D\x0A
2019-07-18T07:44:51.902Z DEBUG modem << +CGSN: "352656100049900"\x0D\x0A
2019-07-18T07:44:51.908Z DEBUG modem << OK\x0D\x0A\x00
2019-07-18T07:44:51.948Z DEBUG modem >> AT+CGMI\x0D\x0A
2019-07-18T07:44:51.999Z DEBUG modem << Nordic Semiconductor ASA\x0D\x0A
2019-07-18T07:44:52.003Z DEBUG modem << OK\x0D\x0A\x00
2019-07-18T07:44:52.049Z DEBUG modem >> AT+CGMM\x0D\x0A
2019-07-18T07:44:52.103Z DEBUG modem << nRF9160-SICA\x0D\x0A
2019-07-18T07:44:52.111Z DEBUG modem << OK\x0D\x0A\x00
2019-07-18T07:44:52.154Z DEBUG modem >> AT+CGMR\x0D\x0A
2019-07-18T07:44:52.197Z DEBUG modem << mfw_nrf9160_1.0.0\x0D\x0A
2019-07-18T07:44:52.201Z DEBUG modem << OK\x0D\x0A\x00
2019-07-18T07:44:52.207Z INFO Nordic Semiconductor ASA nRF9160-SICA [mfw_nrf9160_1.0.0] SerNr: 352656100049900
2019-07-18T07:44:52.239Z DEBUG modem >> AT+CEMODE?\x0D\x0A
2019-07-18T07:44:52.279Z DEBUG modem << +CEMODE: 2\x0D\x0A
2019-07-18T07:44:52.283Z DEBUG modem << OK\x0D\x0A\x00
2019-07-18T07:44:52.337Z DEBUG modem >> AT%XCBAND=?\x0D\x0A
2019-07-18T07:44:52.393Z DEBUG modem << %XCBAND: (1,2,3,4,5,8,12,13,14,17,18,19,20,25,26,28,66)\x0D\x0A
2019-07-18T07:44:52.399Z DEBUG modem << OK\x0D\x0A\x00
2019-07-18T07:44:52.468Z DEBUG modem >> AT+CMEE?\x0D\x0A
2019-07-18T07:44:52.528Z DEBUG modem << +CMEE: 0\x0D\x0A
2019-07-18T07:44:52.532Z DEBUG modem << OK\x0D\x0A\x00
2019-07-18T07:44:52.569Z DEBUG modem >> AT+CMEE=1\x0D\x0A
2019-07-18T07:44:52.632Z DEBUG modem << OK\x0D\x0A\x00
2019-07-18T07:44:52.692Z DEBUG modem >> AT+CNEC?\x0D\x0A
2019-07-18T07:44:52.739Z DEBUG modem << +CNEC: 0\x0D\x0A
2019-07-18T07:44:52.744Z DEBUG modem << OK\x0D\x0A\x00
2019-07-18T07:44:52.750Z DEBUG modem >> AT+CNEC=24\x0D\x0A
2019-07-18T07:44:52.807Z DEBUG modem << OK\x0D\x0A\x00
2019-07-18T07:44:52.849Z DEBUG modem >> AT+CGEREP?\x0D\x0A
2019-07-18T07:44:52.890Z DEBUG modem << +CGEREP: 0,0\x0D\x0A
2019-07-18T07:44:52.896Z DEBUG modem << OK\x0D\x0A\x00
2019-07-18T07:44:52.907Z DEBUG modem >> AT+CGDCONT?\x0D\x0A
2019-07-18T07:44:52.993Z DEBUG modem << OK\x0D\x0A\x00
2019-07-18T07:44:53.004Z DEBUG modem >> AT+CGACT?\x0D\x0A
2019-07-18T07:44:53.091Z DEBUG modem << OK\x0D
2019-07-18T07:44:53.164Z DEBUG modem >> AT+CGEREP=1\x0D\x0A
2019-07-18T07:44:53.244Z DEBUG modem << OK\x0D\x0A\x00
2019-07-18T07:44:53.294Z DEBUG modem >> AT+CIND=1,1,1\x0D\x0A
2019-07-18T07:44:53.337Z DEBUG modem << OK\x0D\x0A\x00
2019-07-18T07:44:53.382Z DEBUG modem >> AT+CEREG=2\x0D\x0A
2019-07-18T07:44:53.435Z DEBUG modem << OK\x0D\x0A\x00
2019-07-18T07:44:53.444Z DEBUG modem >> AT+CEREG?\x0D\x0A
2019-07-18T07:44:53.456Z DEBUG modem << +CEREG: 2,4,"FFFE","FFFFFFFF",7\x0D\x0A
2019-07-18T07:44:53.462Z DEBUG modem << OK\x0D\x0A\x00
2019-07-18T07:44:53.549Z DEBUG modem >> AT%CESQ=1\x0D\x0A
2019-07-18T07:44:53.601Z DEBUG modem << OK\x0D\x0A\x00
2019-07-18T07:44:53.662Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-07-18T07:44:53.722Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D\x0A
2019-07-18T07:44:53.733Z DEBUG modem << OK\x0D\x0A\x00
2019-07-18T07:44:53.819Z DEBUG modem >> AT%XSIM=1\x0D\x0A
2019-07-18T07:44:53.871Z DEBUG modem << OK\x0D\x0A\x00
2019-07-18T07:44:53.917Z DEBUG modem >> AT%XSIM?\x0D\x0A
2019-07-18T07:44:53.969Z DEBUG modem << %XSIM: 1\x0D
2019-07-18T07:44:53.980Z DEBUG modem << \x0A
2019-07-18T07:44:53.984Z DEBUG modem << OK\x0D\x0A\x00
2019-07-18T07:44:54.039Z DEBUG modem >> AT+CPIN?\x0D\x0A
2019-07-18T07:44:54.089Z DEBUG modem << +CPIN: READY\x0D\x0A
2019-07-18T07:44:54.098Z DEBUG modem << OK\x0D\x0A\x00
2019-07-18T07:44:54.160Z DEBUG modem >> AT+CPINR="SIM PIN"\x0D\x0A
2019-07-18T07:44:54.222Z DEBUG modem << +CPINR: "SIM PIN",3\x0D\x0A
2019-07-18T07:44:54.227Z DEBUG modem << OK\x0D\x0A\x00
2019-07-18T07:44:54.299Z DEBUG modem >> AT+CIMI\x0D\x0A
2019-07-18T07:44:54.353Z DEBUG modem << 901405100488795\x0D\x0A
2019-07-18T07:44:54.359Z DEBUG modem << OK\x0D\x0A\x00
2019-07-18T07:44:54.363Z INFO IMSIdentity: 901405100488795
2019-07-18T07:45:16.821Z DEBUG modem >> AT%XSYSTEMMODE?\x0D\x0A
2019-07-18T07:45:16.878Z DEBUG modem << %XSYSTEMMODE: 1,0,0,0\x0D\x0A
2019-07-18T07:45:16.884Z DEBUG modem << OK\x0D\x0A\x00
2019-07-18T07:45:24.283Z DEBUG modem >> AT+CFUN=4\x0D\x0A
2019-07-18T07:45:24.333Z DEBUG modem << ERROR\x0D\x0A\x00
2019-07-18T07:45:24.338Z ERROR Error: AT+CFUN=4
 failed
2019-07-18T07:45:24.364Z DEBUG modem << %CESQ: 255,0\x0D\x0A\x00
2019-07-18T07:45:24.385Z DEBUG modem << %XSIM: 1\x0D\x0A\x00
2019-07-18T07:45:24.401Z DEBUG modem << %XSIM: 0\x0D\x0A\x00
2019-07-18T07:45:24.457Z DEBUG modem >> AT+CPIN?\x0D\x0A
2019-07-18T07:45:24.508Z DEBUG modem << OK\x0D\x0A\x00
2019-07-18T07:45:24.561Z DEBUG modem >> AT+CIMI\x0D\x0A
2019-07-18T07:45:24.615Z DEBUG modem << +CPIN: READY\x0D\x0A
2019-07-18T07:45:24.621Z DEBUG modem << OK\x0D\x0A\x00
2019-07-18T07:45:24.626Z INFO IMSIdentity: +CPIN: READY
2019-07-18T07:45:27.933Z DEBUG modem >> AT+CFUN=4\x0D\x0A
2019-07-18T07:45:27.984Z DEBUG modem << 901405100488795\x0D\x0A
2019-07-18T07:45:27.989Z DEBUG modem << OK\x0D\x0A\x00
2019-07-18T07:45:40.179Z DEBUG modem >> AT%XSYSTEMMODE=0,1,0,0\x0D\x0A
2019-07-18T07:45:40.228Z DEBUG modem << OK\x0D\x0A\x00
2019-07-18T07:45:47.567Z DEBUG modem >> AT+CFUN=1\x0D\x0A
2019-07-18T07:45:47.626Z DEBUG modem << OK\x0D\x0A\x00
2019-07-18T07:45:47.630Z DEBUG modem << %XSIM: 0\x0D
2019-07-18T07:45:50.139Z DEBUG modem >> AT+CFUN?\x0D\x0A
2019-07-18T07:45:51.140Z ERROR Error: 'AT+CFUN?
' timed out
2019-07-18T07:45:53.924Z DEBUG modem >> AT+CFUN?\x0D\x0A
2019-07-18T07:45:54.924Z ERROR Error: 'AT+CFUN?
' timed out
2019-07-18T07:45:56.254Z DEBUG modem >> AT+CFUN?\x0D\x0A
2019-07-18T07:45:57.256Z ERROR Error: 'AT+CFUN?
' timed out

As you can see, it seems to be impossible to set the LTE-M to NB-IoT mode because the modem wont response after doing this. I tried to set it in the prj.conf file, but it will be ignored (AT%XSYSTEMMODE? still delivers 1,0,0,0). A change in the config menu of SES leads to a non-responding application in regards to AT-commands.

I tried to use the v0.4.0 ncs tag in combination with the v1.0.0 mfw (read it in a similar thread), but the problems are still the same.

Kind regards.

RE: nRF9160 MQTT + TLS + PSM

Håkon Alseth — Wed, 17 Jul 2019 14:06:45 GMT

Hi,

What it does in that section is that it writes CFUN=1, then waits for a response (in lte_lc.c::at_handler()) from the network to get attached.

It might take a minute to get attached.

Are you also stuck in at_client with the same issue? Do you have a log output?

Kind regards,

Håkon

RE: nRF9160 MQTT + TLS + PSM

wne — Tue, 16 Jul 2019 13:19:38 GMT

Hi Håkon,

I wasn't running the newest mfw and ncs tag. After updating both (reference: devzone.nordicsemi.com/.../unable-to-update-firmware-on-nrf9160), my application does not establish a LTE link connection anymore.

Neither does the at_client, asset_tracker and so on. I tracked the code down and found that it stucks in the following part of code: modem_configure() -> lte_lc_init_and_connect() -> w_lte_lc_init_and_connect() -> at_cmd_write(normal, NULL, 0, NULL).

It seems like I am not able to start up the modem (AT+CFUN = 1) anymore. Do you have some idea or advice, what is going wrong?

Kind regards.

RE: nRF9160 MQTT + TLS + PSM

Håkon Alseth — Tue, 16 Jul 2019 08:07:57 GMT

Hi,

TLS and "open" should give the same current consumption.

Are you running with modem fw v1.0.0 and ncs tag "v1.0.0" ?

cd path/to/ncs/nrf
git pull
git checkout v1.0.0
# Update the other repo's to match the above tag
west update

Kind regards,

Håkon