Search found 1830 matches

by Roberthh
Sun Oct 09, 2016 8:07 pm
Forum: ESP8266 boards
Topic: Socket handler setup
Replies: 2
Views: 1429

Re: Socket handler setup

Thanks. I'm trying to set up the background ftp server. For single command it works, but for two stage commands it looks like the seconds connection disappears between commands. I have to dig further.
Update: Some progress, although with a hammer. ls command works.
by Roberthh
Sun Oct 09, 2016 6:15 pm
Forum: General Discussion and Questions
Topic: Pyboard noise
Replies: 21
Views: 7725

Re: Pyboard noise

It would be interesting to visualize the playback of a well known signal (e.g. sine) after capturing with the noise, to tell, whether this is a timing problem, like Dave mentioned, or a superposition problem.
by Roberthh
Sun Oct 09, 2016 4:47 pm
Forum: ESP8266 boards
Topic: Socket handler setup
Replies: 2
Views: 1429

Socket handler setup

I see this line e.g. in webrepl:

Code: Select all

setsockopt(socket.SOL_SOCKET, 20, handler) 
I can guess the purpose, but is that somewhere documented? And were is it implemented?
by Roberthh
Sun Oct 09, 2016 7:41 am
Forum: ESP8266 boards
Topic: Telnet Server
Replies: 20
Views: 12755

Re: Telnet Server

This program works and looks very elegant, but seems to drop characters sometimes during reading. This can be observed e.g. by

Code: Select all

print("*******************************")
put into the paste buffer and then submitted with keyboard autorepeat. With shorter strings it works.
by Roberthh
Sat Oct 08, 2016 8:19 pm
Forum: ESP8266 boards
Topic: FTP Server
Replies: 25
Views: 16506

Re: FTP Server

Hello all & @chrisgp, I made a few more changes: SYST command: returns now a value which pleases Firefox LIST and NLST accept as optional parameter now also filenames, with ? and * as wildcards. Now, also ftp's mput, mget and mdelete commands are supported APPE command supported (may be dropped) Chu...
by Roberthh
Sat Oct 08, 2016 12:12 pm
Forum: ESP8266 boards
Topic: ESP8266 broken?
Replies: 5
Views: 1911

Re: ESP8266 broken?

Is the baud rate set to 115200?
by Roberthh
Sat Oct 08, 2016 10:50 am
Forum: ESP8266 boards
Topic: FTP Server
Replies: 25
Views: 16506

Re: FTP Server

Hello @chrisgp, the point about background operation is valid. So I changed it back to your style of maintaining cwd locally. The list of tested hosts and tools is the same. Just some more observations: - the most robust tools tested are: plain ftp, fireftp and filezilla - the file managers besides ...
by Roberthh
Sat Oct 08, 2016 6:51 am
Forum: General Discussion and Questions
Topic: Pyboard noise
Replies: 21
Views: 7725

Re: Pyboard noise

Even if you do not use A3c3 and AGND, you can connect a capacitor there to reduce the internal noise on the supply of the STM32's analog section. The internal capacitor is just 4µ7 sized. You should power the PyBoard and the external Audio source PCB separately without any common supply line (GND of...
by Roberthh
Fri Oct 07, 2016 7:11 pm
Forum: General Discussion and Questions
Topic: Pyboard noise
Replies: 21
Views: 7725

Re: Pyboard noise

That's hard to tell. Ears are very sensitive to the smallest signals. Possible sources & actions: - noisy Vdd: the stm3232 has a separate VDDA/VSSA for the analog section, which are connected to the A3V3/AGND pins. Try to supply the PyBoard from stable power source, or/and add a capacitor (~100µ) be...
by Roberthh
Fri Oct 07, 2016 6:59 pm
Forum: ESP8266 boards
Topic: FTP Server
Replies: 25
Views: 16506

Re: FTP Server

Hello @chrisgp. I made a few more additions to your uftpsever.py (sorry for hijacking it), wasting some time on spurious crashes, which turned out to be causes by an outdated mpy-cross. It was tested on various platforms & software pieces. Linux: ftp: works for file & directory operations w/o suppor...