FTP (or similar) over serial port of an embedded linux system

From	pozz <pozzugno@gmail.com>
Newsgroups	comp.arch.embedded
Subject	FTP (or similar) over serial port of an embedded linux system
Date	2017-07-06 09:44 +0200
Organization	A noiseless patient Spider
Message-ID	<ojkpgu$jja$1@dont-email.me> (permalink)

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Maybe this question should be posted in a linux development group, 
however the use of a serial port is more typical in an embedded 
environment, so I try to post here.

I have an embedded Linux box (based on a Raspberry) with a serial port 
converted to a USB port through a UART-USB transceiver from Microchip. 
This USB port is seen as a COM port under Windows OS.

I need to do simple operations on the filesystem through the serial 
port, mainly:
- list files in a directory
- download files
- upload files
- remove files

The user on the Windows PC should launch a simple script (it will be 
written in Python) that make all the operations in sequence.

Do you know of some technology/protocol that could be used in a simple way?

I have two ideas, maybe there's another one that is better.

The first is to configure a PPP over serial line and use classic FTP 
server for filesystem operations. However this solution implies that the 
user should configure the PPP link, but she will not have so much knowledge.

The second is to run the classical console on the serial port, with 
login and prompt. The python script should type/send commands at the 
prompt (ls, rm, ...). The download could be done with hexdump command 
(the python script could convert to binary again).
The upload should be done with echo command, writing a ASCII hex file 
and launching a simple script to convert from ASCII to binary on the 
embedded Linux.

Do you have other better solutions?

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Thread

FTP (or similar) over serial port of an embedded linux system pozz <pozzugno@gmail.com> - 2017-07-06 09:44 +0200
  Re: FTP (or similar) over serial port of an embedded linux system Reinhardt Behm <rbehm@hushmail.com> - 2017-07-06 16:08 +0800
    Re: FTP (or similar) over serial port of an embedded linux system Theo Markettos <theom+news@chiark.greenend.org.uk> - 2017-07-06 11:03 +0100
  Re: FTP (or similar) over serial port of an embedded linux system Rob Gaddi <rgaddi@highlandtechnology.invalid> - 2017-07-06 09:30 -0700
  Re: FTP (or similar) over serial port of an embedded linux system Tauno Voipio <tauno.voipio@notused.fi.invalid> - 2017-07-06 22:41 +0300
  Re: FTP (or similar) over serial port of an embedded linux system Don Y <blockedofcourse@foo.invalid> - 2017-07-06 12:53 -0700
    Re: FTP (or similar) over serial port of an embedded linux system edward.ming.lee@gmail.com - 2017-07-06 13:24 -0700
    Re: FTP (or similar) over serial port of an embedded linux system pozz <pozzugno@gmail.com> - 2017-07-08 01:18 +0200
  Re: FTP (or similar) over serial port of an embedded linux system Les Cargill <lcargill99@comcast.com> - 2017-07-07 20:11 -0500

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