> anybody have tested USB -CDC/Virtual COM port?
> it's just half duplex or full duplex??
Therefore, RTS and CTS handshake cannot controlled by host driver, and appropriate handshake signaling must be done by AVRCDC if needed.
This AVRCDC does no handshake at all, and don't support modem status lines (DTR, DCD, RI, DSR) and no BREAK signaling in either direction.
I have written AVRCDC based firmware that (at least) fakes modem status lines and BREAK for a dedicated reason:
"http://www.tu-chemnitz.de/~heha/bastelecke/Rund um denPC/FunkUsb/"
Last edited by henni
on Mon Sep 22, 2008 11:37 am, edited 1 time in total.