nRF9160 SLM AT commands

[sravan.rikka]

Hi Team,

Can you please tell the AT commands of below.

1. AT command to keep nRF9160 in sleep mode.

2. AT command to wakeup nRF9160.

Regards,

Sravan Rikka

[Charlie]

Hi Sravan,

Depends on how you define sleep mode, if you mean setting the device to minimum functionality. Disables both transmit and receive RF circuits and deactivates LTE and GNSS services. The following commands can do the jobs according to docs.nordicsemi.com/.../cfun_set.html

1. AT+CFUN=0

2. AT+CFUN=1

Device can also enter PSM(Power Saving Mode) when network support this feature. I suggest you learn Cellular IoT Fundamentals - Nordic Developer Academy (nordicsemi.com) cause to get a comprehensive training about cellular IoT basic usage.

Best regards,

Charlie

[sravan.rikka]

1. AT+CFUN=0 will disable transmit and receive RF circuit but I want to keep the modem(nRF9160) in deep sleep mode, can you please tell the AT commands to keep the modem in deep sleep. And also wakeup AT commands?

[Charlie]

Can you define "deep sleep mode" if it is neither "AT+CFUN=0" or PSM can achieve?

[sravan.rikka]

Hi Charlie,

Can you please respond, I am awaiting for your comments.

1. "deep sleep mode" means low power mode.

2.  When you are releasing modem firmware, are you releasing both modem delta firmware? and full modem firmware?

We are not keeping external flash in our product, hence we will upgrade only modem delta firmware.

Example: Assume currently modem has v1.2 firmware in it and after 2 years you might be released modem firmware version as v2.8. When you are releasing v2.8 firmware you will provide modem delta firmware which we can upgraded from 1.2 to 2.8 version?

3. nRF9160 SLM supports eDRX and PSM?

4. Is the MQTT supports TLS? If yes, can you please share the AT commands to configure TLS for MQTT. 

Regards,

Sravan Rikka

[Charlie]

Hi Sravan,

1. nRF91 only have "CFUN=0" or PSM type of power saving choice.

2. Yes, the MFW release package contains both. Delta update is only available between minor versions, like 13.5 to 1.3.6.

A delta upgrade only contains the changes between two versions, so it is not possible to "skip steps" like 1.3.4 to 1.3.6 or 1.2 to 2.8. The only way to upgrade directly from 1.2 to 2.8 would be to do a full modem upgrade.

3. Yes.

4. Yes. I tested with test.mosquitto.org and it works as expected. You need to write CA with CERTIFICATE MANAGER first.

Ready
> AT%CMNG=0,100,0,"-----BEGIN CERTIFICATE-----
                                              MIIEAzCCAuugAwIBAgIUBY1hlCGvdj4NhBXkZ/uLUZNILAwwDQYJKoZIhvcNAQEL
                                   BQAwgZAxCzAJBgNVBAYTAkdCMRcwFQYDVQQIDA5Vbml0ZWQgS2luZ2RvbTEOMAwG
                        A1UEBwwFRGVyYnkxEjAQBgNVBAoMCU1vc3F1aXR0bzELMAkGA1UECwwCQ0ExFjAU
             BgNVBAMMDW1vc3F1aXR0by5vcmcxHzAdBgkqhkiG9w0BCQEWEHJvZ2VyQGF0Y2hv
  by5vcmcwHhcNMjAwNjA5MTEwNjM5WhcNMzAwNjA3MTEwNjM5WjCBkDELMAkGA1UE
                                                               BhMCR0IxFzAVBgNVBAgMDlVuaXRlZCBLaW5nZG9tMQ4wDAYDVQQHDAVEZXJieTES
                                                    MBAGA1UECgwJTW9zcXVpdHRvMQswCQYDVQQLDAJDQTEWMBQGA1UEAwwNbW9zcXVp
                                         dHRvLm9yZzEfMB0GCSqGSIb3DQEJARYQcm9nZXJAYXRjaG9vLm9yZzCCASIwDQYJ
                              KoZIhvcNAQEBBQADggEPADCCAQoCggEBAME0HKmIzfTOwkKLT3THHe+ObdizamPg
                UZmD64Tf3zJdNeYGYn4CEXbyP6fy3tWc8S2boW6dzrH8SdFf9uo320GJA9B7U1FW
     Te3xda/Lm3JFfaHjkWw7jBwcauQZjpGINHapHRlpiCZsquAthOgxW9SgDgYlGzEA
                                                                     s06pkEFiMw+qDfLo/sxFKB6vQlFekMeCymjLCbNwPJyqyhFmPWwio/PDMruBTzPH
                                                          3cioBnrJWKXc3OjXdLGFJOfj7pP0j/dr2LH72eSvv3PQQFl90CZPFhrCUcRHSSxo
                                               E6yjGOdnz7f6PveLIB574kQORwt8ePn0yidrTC1ictikED3nHYhMUOUCAwEAAaNT
                                 MFEwHQYDVR0OBBYEFPVV6xBUFPiGKDyo5V3+Hbh4N9YSMB8GA1UdIwQYMBaAFPVV
                      6xBUFPiGKDyo5V3+Hbh4N9YSMA8GA1UdEwEB/wQFMAMBAf8wDQYJKoZIhvcNAQEL
           BQADggEBAGa9kS21N70ThM6/Hj9D7mbVxKLBjVWe2TPsGfbl3rEDfZ+OKRZ2j6AC
6r7jb4TZO3dzF2p6dgbrlU71Y/4K0TdzIjRj3cQ3KSm41JvUQ0hZ/c04iGDg/xWf
                                                                +pp58nfPAYwuerruPNWmlStWAXf0UTqRtg4hQDWBuUFDJTuWuuBvEXudz74eh/wK
                                                  sMwfu1HFvjy5Z0iMDU8PUDepjVolOCue9ashlS4EB5IECdSR2TItnAIiIwimx839
                                       LdUdRudafMu5T5Xma182OC0/u/xRlEm+tvKGGmfFcN0piqVl8OrSPBgIlb+1IKJE
                            m/XriWr/Cq4h/JfB7NTsezVslgkBaoU=
                                                            -----END CERTIFICATE-----"

OK
> AT%CMNG=2,100,0

%CMNG: 100,0,"49B4356A9687F703E36B0B6246FC75A1632D33934B9EE8D212B5E61C005F4197","-----BEGIN CERTIFICATE-----
                                                                                                            MIIEAzCCAuugAwIBAgIUBY1hlCGvdj4NhBXkZ/uLUZNILAwwDQYJKoZIhvcNAQEL
                                                                                                                                                                            BQAwgZAxCzAJBgNVBAYTAkdCMRcwFQYDVQQIDA5Vbml0ZWQgS2luZ2RvbTEOMAwG
                                                                                                                                                                                                                                            A1UEBwwFRGVyYnkxEjAQBgNVBAoMCU1vc3F1aXR0bzELMAkGA1UECwwCQ0ExFjAU
                                                                                                                                                                                                                                                                                                            BgNVBAMMDW1vc3F1aXR0by5vcmcxHzAdBgkqhkiG9w0BCQEWEHJvZ2VyQGF0Y2hv
                                                           by5vcmcwHhcNMjAwNjA5MTEwNjM5WhcNMzAwNjA3MTEwNjM5WjCBkDELMAkGA1UE
                                                                                                                           BhMCR0IxFzAVBgNVBAgMDlVuaXRlZCBLaW5nZG9tMQ4wDAYDVQQHDAVEZXJieTES
                                                                                                                                                                                           MBAGA1UECgwJTW9zcXVpdHRvMQswCQYDVQQLDAJDQTEWMBQGA1UEAwwNbW9zcXVp
                                                                                                                                                                                                                                                           dHRvLm9yZzEfMB0GCSqGSIb3DQEJARYQcm9nZXJAYXRjaG9vLm9yZzCCASIwDQYJ
          KoZIhvcNAQEBBQADggEPADCCAQoCggEBAME0HKmIzfTOwkKLT3THHe+ObdizamPg
                                                                          UZmD64Tf3zJdNeYGYn4CEXbyP6fy3tWc8S2boW6dzrH8SdFf9uo320GJA9B7U1FW
                                                                                                                                          Te3xda/Lm3JFfaHjkWw7jBwcauQZjpGINHapHRlpiCZsquAthOgxW9SgDgYlGzEA
                                                                                                                                                                                                          s06pkEFiMw+qDfLo/sxFKB6vQlFekMeCymjLCbNwPJyqyhFmPWwio/PDMruBTzPH
                                                                                                                                                                                                                                                                          3cioBnrJWKXc3OjXdLGFJOfj7pP0j/dr2LH72eSvv3PQQFl90CZPFhrCUcRHSSxo
                         E6yjGOdnz7f6PveLIB574kQORwt8ePn0yidrTC1ictikED3nHYhMUOUCAwEAAaNT
                                                                                         MFEwHQYDVR0OBBYEFPVV6xBUFPiGKDyo5V3+Hbh4N9YSMB8GA1UdIwQYMBaAFPVV
                                                                                                                                                         6xBUFPiGKDyo5V3+Hbh4N9YSMA8GA1UdEwEB/wQFMAMBAf8wDQYJKoZIhvcNAQEL
                                                                                                                                                                                                                         BQADggEBAGa9kS21N70ThM6/Hj9D7mbVxKLBjVWe2TPsGfbl3rEDfZ+OKRZ2j6AC
                                                                                                                                                                                                                                                                                         6r7jb4TZO3dzF2p6dgbrlU71Y/4K0TdzIjRj3cQ3KSm41JvUQ0hZ/c04iGDg/xWf
                                        +pp58nfPAYwuerruPNWmlStWAXf0UTqRtg4hQDWBuUFDJTuWuuBvEXudz74eh/wK
                                                                                                        sMwfu1HFvjy5Z0iMDU8PUDepjVolOCue9ashlS4EB5IECdSR2TItnAIiIwimx839
                                                                                                                                                                        LdUdRudafMu5T5Xma182OC0/u/xRlEm+tvKGGmfFcN0piqVl8OrSPBgIlb+1IKJE
                                                                                                                                                                                                                                        m/XriWr/Cq4h/JfB7NTsezVslgkBaoU=
                                                                                                                                                                                                                                                                        -----END CERTIFICATE----------BEGIN CERTIFICATE-----
           MIIEAzCCAuugAwIBAgIUBY1hlCGvdj4NhBXkZ/uLUZNILAwwDQYJKoZIhvcNAQEL
                                                                           BQAwgZAxCzAJBgNVBAYTAkdCMRcwFQYDVQQIDA5Vbml0ZWQgS2luZ2RvbTEOMAwG
                                                                                                                                           A1UEBwwFRGVyYnkxEjAQBgNVBAoMCU1vc3F1aXR0bzELMAkGA1UECwwCQ0ExFjAU
                                                                                                                                                                                                           BgNVBAMMDW1vc3F1aXR0by5vcmcxHzAdBgkqhkiG9w0BCQEWEHJvZ2VyQGF0Y2hv
                                                                                                                                                                                                                                                                           by5vcmcwHhcNMjAwNjA5MTEwNjM5WhcNMzAwNjA3MTEwNjM5WjCBkDELMAkGA1UE
                          BhMCR0IxFzAVBgNVBAgMDlVuaXRlZCBLaW5nZG9tMQ4wDAYDVQQHDAVEZXJieTES
                                                                                          MBAGA1UECgwJTW9zcXVpdHRvMQswCQYDVQQLDAJDQTEWMBQGA1UEAwwNbW9zcXVp
                                                                                                                                                          dHRvLm9yZzEfMB0GCSqGSIb3DQEJARYQcm9nZXJAYXRjaG9vLm9yZzCCASIwDQYJ
                                                                                                                                                                                                                          KoZIhvcNAQEBBQADggEPADCCAQoCggEBAME0HKmIzfTOwkKLT3THHe+ObdizamPg
                                                                                                                                                                                                                                                                                          UZmD64Tf3zJdNeYGYn4CEXbyP6fy3tWc8S2boW6dzrH8SdFf9uo320GJA9B7U1FW
                                         Te3xda/Lm3JFfaHjkWw7jBwcauQZjpGINHapHRlpiCZsquAthOgxW9SgDgYlGzEA
                                                                                                         s06pkEFiMw+qDfLo/sxFKB6vQlFekMeCymjLCbNwPJyqyhFmPWwio/PDMruBTzPH
                                                                                                                                                                         3cioBnrJWKXc3OjXdLGFJOfj7pP0j/dr2LH72eSvv3PQQFl90CZPFhrCUcRHSSxo
                                                                                                                                                                                                                                         E6yjGOdnz7f6PveLIB574kQORwt8ePn0yidrTC1ictikED3nHYhMUOUCAwEAAaNT
                                                                                                                                                                                                                                                                                                         MFEwHQYDVR0OBBYEFPVV6xBUFPiGKDyo5V3+Hbh4N9YSMB8GA1UdIwQYMBaAFPVV
                                                        6xBUFPiGKDyo5V3+Hbh4N9YSMA8GA1UdEwEB/wQFMAMBAf8wDQYJKoZIhvcNAQEL
                                                                                                                        BQADggEBAGa9kS21N70ThM6/Hj9D7mbVxKLBjVWe2TPsGfbl3rEDfZ+OKRZ2j6AC
                                                                                                                                                                                        6r7jb4TZO3dzF2p6dgbrlU71Y/4K0TdzIjRj3cQ3KSm41JvUQ0hZ/c04iGDg/xWf
                                                                                                                                                                                                                                                        +pp58nfPAYwuerruPNWmlStWAXf0UTqRtg4hQDWBuUFDJTuWuuBvEXudz74eh/wK
       sMwfu1HFvjy5Z0iMDU8PUDepjVolOCue9ashlS4EB5IECdSR2TItnAIiIwimx839
                                                                       LdUdRudafMu5T5Xma182OC0/u/xRlEm+tvKGGmfFcN0piqVl8OrSPBgIlb+1IKJE
                                                                                                                                       m/XriWr/Cq4h/JfB7NTsezVslgkBaoU=
                                                                                                                                                                       -----END CERTIFICATE-----"

OK
> AT+CEREG=5

OK
> AT+CPSMS=0

OK
> AT+CEDRXS=0

OK
> AT+CFUN=1

OK

+CEREG: 2,"81A3","03238D0A",7

+CEREG: 1,"81A3","03238D0A",7,,,"11100000","11100000"

+CEREG: 1,"81A3","031B4301",7,,,"11100000","11100000"
> AT#XMQTTCFG="nrf9160pub",300,1

OK
> AT#XMQTTCON=1,"","","test.mosquitto.org",8883,100

OK

#XMQTTEVT: 0,0
> AT#XMQTTSUB="nrf9160pub",0

OK

#XMQTTEVT: 7,0

#XMQTTMSG: 10,13
nrf9160pub
Hello from PC MQTT client.

#XMQTTEVT: 2,0

#XMQTTMSG: 10,19
nrf9160pub
Hello again from PC MQTT client.

#XMQTTEVT: 2,0
> AT#XMQTTPUB="nrf9160pub","Hello from nRF9160DK itself.",0,0

OK

#XMQTTMSG: 10,28
nrf9160pub
Hello from nRF9160DK itself.

#XMQTTEVT: 2,0

Best regards,

Charlie