CCS :: View topic - Powerline data acquisition and communication

FAQ

Forum Help

Official CCS Support

Profile Log in to check your private messages Log in

CCS does not monitor this forum on a regular basis.

Please do not post bug reports on this forum. Send them to CCS Technical Support

Powerline data acquisition and communication
Goto page Previous 1, 2, 3

CCS Forum Index -> General CCS C Discussion

View previous topic :: View next topic

Author

Message

bkamen

Joined: 07 Jan 2004
Posts: 1615
Location: Central Illinois, USA

Posted: Thu Nov 18, 2010 12:33 pm

Humberto wrote:

Ben, congratulations well done! Very Happy

I can see that you are running @1200Bauds, did you try at @2400? at such speed you will see in the
rcvd side plenty of garbage.

I tried it -- yea, garbage. It's just not made to do that. There's a slope controller to "gently" bring the carrier freq up and then down off the powerline side (if I'm remembering the datasheet right).

So faster speeds --- Bzzzzzzzt don't work so well. Hahaha.

I thought I'd share an image of the finished PCB's:

http://www.benjammin.net/www/images/projects/powerline-modem.jpg

At some point, I'll plug them into the wall. While I was playing on the bench, I was testing them with a 24VAC transformer. Harder to ZAP myself while poking around.

What's really funny is the whole "half duplex thing" -- when I got down to writing the bridge/output control firmware for the PIC, everything the TDA5051 transmits, it also receives. Not exciting, I'm just so used to dealing with isolated TX/RX lines.

Anyway - enjoy.

-Ben
_________________
Dazed and confused? I don't think so. Just "plain lost" will do. :D

Display posts from previous:

	CCS Forum Index -> General CCS C Discussion	All times are GMT - 6 Hours Goto page Previous 1, 2, 3
Page 3 of 3

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum