[froomzer]

Does anyone have experience with pySerial?

[Peter Pitt]

A little

[froomzer]

excellent -- i'm communicating with a PIC (8-bit microcrontroller, not that it matters). sending information (characters) via .write() works well, but receiving tens to chop off some data. I dont really have an idea where to start looking for a mistake.

[Peter Pitt]

What do you mean by "chop off"?

[froomzer]

Peter Pitt, ie. i know the received message should be 10 characters long but i receive only x and the often the last received character is garbled.
received messsages are chopped even if i use readlines() with a timeout. connecting to the PIC via 'screen /dev/tty.serial <parameters>' works perfectly.

[Peter Pitt]

Normally if part of a message is garbled, but the rest isn't, then there is a low-level problem (noise, shorts, etc.)

[Ikopar]

froomzer, what OS?

[froomzer]

Ikopar, well, Fink (ie linux) on OSX
Peter Pitt, i thought of that, but connected to the same machine using screen works -- so i rule out non-software problems

[jomanda]

S/handshaking/flow control/ :^)

[Peter Pitt]

Hmm, sorry I don't have any specific hints off the top of my head