In SLM Example datamode can not receive data from server

RE: In SLM Example datamode can not receive data from server

Dvls — Sat, 16 Dec 2023 17:38:43 GMT

Hi Yes i can give you steps

1. compile Serial_LTE_mode sample code. sample code is available at following location of nRF toolchain

Loc : C:\ncs\v2.4.2\nrf\applications\serial_lte_modem

2. After successfully compile and flashed into nRF9160

3. Now connect nRF9160 AT command UART using external USB to serial adapter.

4. To connect the TCP server use below commands (Use TCP server if you have one or you can create server using Hercules PC app. it requires static IP or you can do port forwarding into your router).

a. AT

b. AT+CFUN=1

c. AT#XSOCKET=<op>[,<type>,<role>[,<cid>]]

d. AT#XCONNECT=<url>,<port>

e. AT#XSEND (Here, To switch into datamode, do not use data to send)

Refer this link for AT command information : https://developer.nordicsemi.com/nRF_Connect_SDK/doc/latest/nrf/applications/serial_lte_modem/doc/SOCKET_AT_commands.html

5. SO now in data mode we can not use AT commands, so AT#XRECV=0 will not work here for now. this command will treated as an ordinary data.

6. Now if we send data from TCP server to modem then it should work as mention in below snap, But its not working. so this is the issue.

Thanks

Dvl

RE: In SLM Example datamode can not receive data from server

Dvls — Tue, 12 Dec 2023 19:20:40 GMT

1. I have created one TCP server in my PC with static IP using Hercules

2. I Just compile and flahsed SLM example code

3. Now i am us terminal as to send AT command to nRF9160

4. to connect the server i am using below commands

1. AT

2. AT+CFUN=1

3. AT#XSOCKET=<op>[,<type>,<role>[,<cid>]]

4. AT#XCONNECT=<url>,<port>

5. AT#XSEND (Here No data, To active datamode)

5 Then sending data to server as arbitrary data from terminal

6. Then i am try to send data from server to nRF9160 but i did not get anything

If you have working slm(Serial LTE modem) sample then please share with me and please let me know the version of toolchain.

Thanks,

Dvl

RE: In SLM Example datamode can not receive data from server

Sigurd — Mon, 11 Dec 2023 17:30:21 GMT

Hi,

How are you testing this ? Could you provide some instructions on how to recreate this issue?

RE: In SLM Example datamode can not receive data from server

Dvls — Sat, 09 Dec 2023 19:25:00 GMT

1. AT commands does not work in data mode.

2. My Question is that in data mode, data streamed from a remote service as arbitrary data to be sent to the MCU over the UART bus. is not working in Serial_LTE_modem sample code. Please help to make it work, Please refer below detail about my Question.

From this link : https://developer.nordicsemi.com/nRF_Connect_SDK/doc/latest/nrf/applications/serial_lte_modem/doc/slm_data_mode.html#running-in-data-mode

Here, the highlighted things is not working in my case.

Thanks and regards,

Dvl

RE: In SLM Example datamode can not receive data from server

Sigurd — Mon, 30 Oct 2023 12:29:23 GMT

Hi!

Could you try this command?

AT#XRECV=0