Hello nordic.
I'm using your FTP client. The client can only send 4 kB of data at once so I send data numerous times and append to a file.
The first send I do is 160kB which requires 40 packets to be sent. If I then send another file it halts after sending around 70 packets, I get an error -116 and the device goes into idle and I have to reboot.
If I wait a 2-3 minutes from the first file before sending the second file, there is no problem.
Thus there must be a problem with a timer or a buffer overflowing or some such thing. The FTP client has a heartbeat timer but changing the value of this made no difference. I have deduced that it does not matter if I wait 10 seconds or 50 seconds, the second file always breaks at the same packet. This makes me think that the problem should be with a buffer that clears after a set amount of time.
Edit: I should add that I do ftp_uninit() when done with transfer and ftp_open() and ftp_login() before starting transfer.
Looking forward to your reply
Kind regards
