RE: receiving 'OK' after CR_LF in datamode

Anthony Ambuehl — Mon, 20 Sep 2021 16:40:11 GMT

The documentation for 1.5.1 indicates it has the concept of datamode, nonetheless it seems the code does not work as described. I have updated to 1.6.1 now, so I will close this ticket.

RE: receiving 'OK' after CR_LF in datamode

Albrecht Markus Schellenberger — Fri, 17 Sep 2021 07:40:29 GMT

Hello Anthony,

The Serial LTE modem application has no datamode available in NCS v1.5.1. So the “\r\n” in line:

"------B0uNd4Ry2018\r\n\

will basically terminate the command.

Additionally, characters like “\"” could cause trouble as they might be interpreted differently in command mode, which makes it difficult the send data in .json format as body.

Hence, I strongly recommend you update to at least NCS v1.6.0, where datamode was added to the Serial LTE modem application. The command you would like to send could look something like this then:

[00:00:35.041,000] <info> MODEM_NRF9160: tx:"POST","/device/api/v0/station/powerontest","User-Agent: SLM/1.2.0
Accept: application/json
Content-Type: application/ json
Content-Disposition: form-data; name=\"log_data\"
Content-Length: XXXX
",XXXX

Followed by URC:

#XHTTPCREQ: 1

which makes the Serial LTE modem application entering datamode.

{
"source": "Basestation 2.14.0",
"stationMAC": "DA1111111111",
"serialNum": "B00000\",
"deviceMAC": "DA1111111111",
"logType": "Station",
"fwVersion": "2.14.0\",
"sdVersion": "09-89-168",
"blVersion": 8,
"command": "selfTest",
"rtc": {
    "epochTime": 1631050498,
    "batterySwitchOverFlag": 1,
    "batteryLowFlag": 0
  },
"modem": {
    "fwVersion\": "L0.0.00.00.05.08 [Apr 17 2019 19:34:02]",
    "model": "SARA-R410M-02B",
    "ICCID": "89011703278453956677",
    "CSQ": "+CSQ: 21,99",
    "CESQ": "+CESQ: 99,99,255,255,14,38",
    "IMEI": "352753097871972"
  },
"createdAt": "2021-09-07T21:34:58Z",
"epochTime": 1631050498,
"localEpochTime": 13143,
"tzOffset":-14400,
“inventory":
{
 productName : "Trio_Station",
 subsystems : [
    { "id" : 0, "name" : "NRF_00", "version" : "2.14.0" },
    { "id" : 1, "name" : "MODEM_00", "version" : "L0.0.00.00.05.08 [Apr 17 2019 19:34:02]" }
  ]
}
,
"last_key":0
}

Datamode is able to send the original .json text without shift or newline chars, etc.

When total XXXX bytes has been sent, SLM HTTP client quits datamode automatically followed by:

#XHTTPCREQ: 0

I hope this will solve your issue!

Regards,

RE: receiving 'OK' after CR_LF in datamode

Albrecht Markus Schellenberger — Thu, 16 Sep 2021 13:52:40 GMT

Hello Anthony,

I will come back to you tomorrow.

Regards,

Markus

RE: receiving 'OK' after CR_LF in datamode

Anthony Ambuehl — Wed, 15 Sep 2021 16:30:08 GMT

Some additional information:

Testing with Release 1.5.1. Using SLM over UART, only modification is to switch UART port to UART2.