27 Aug
2012
27 Aug
'12
8:30 a.m.
On 8/26/12 11:48 PM, Jochen Kunz wrote:
There is one serious flaw I encountered with USB RS232
adapters:
They can't generate a serial break.
I was thinking on the drive in about the old smart cables, It
would be interesting to take an AVR with USB interface and make
a serial dongle that would sense if the other end is driving
pin 2 or 3, then flip the direction of the signals appropriately.
It could also handle RTS/CTS or CTL-S/CTL-Q handshaking directly
and generate a serial break.