Is there any real documentation on AT#XFTP commands? for the serial_lte_modem FW?

[Mr.Newlove]

Basically the title. The documentation here:

https://developer.nordicsemi.com/nRF_Connect_SDK/doc/latest/nrf/applications/serial_lte_modem/doc/FTP_AT_commands.html

https://github.com/nrfconnect/sdk-nrf/blob/a0fc38d842f4772c04f957b2d473644b567a1950/applications/serial_lte_modem/doc/slm_testing.rst#ftp-at-commands

Is overall kind of lack luster and missing things?

Just an example... I am trying to FTP PUT files ranging from 1kb-10mb in size using the HEX upload method. But anything a few 100bytes makes the modem error out. I mean if there was a way to just switch to pure streaming socket? So I could just send something like... 

AT#XFTP="put","2021-05-29 15.00.00.csv",2048

Then just the next 2048 bytes sent over the port will be sent as the file?? It really shouldn't be this hard to find documentation on the commands.

[Mr.Newlove]

So... in the newer FW on Github, it appears some kind of file appending feature is being added? but no real documentation on it so its going to be hard to get that going

github.com/.../slm_at_ftp.c

[Mr.Newlove]

If anyone else has this problem, the "mput" function works exactly the same way as the "put" command but appends to an existing file

Try to limit your entire data packet to 576 bytes after expanding to hex

also make sure you are using SDK 1.6.0 or higher