[Oberon] Re (2): Re (2): File transfer.
thomas.kral at email.cz
Sun Jun 11 21:49:01 CEST 2017
On Sat, 10 Jun 2017 13:54:29 +0000
"Skulski, Wojciech" <skulski at pas.rochester.edu> wrote:
> > But how about if we really need to connect RS232 signals to USB,
> > because different signal are levels used there.
> > RS232 - "0" ~ -12V, "1" ~ +12V
> > USB - "0" ~ 0V, "1" ~ +5V
> > I can imagine RS232 -> USB is easy as to dropping voltage from 12V.
> > But how about USB -> RS232? Does not seem possible to transform
> > 5V->12V without external 12V power supply.
> Here is the relevant FTDI cable.
> I also attached a schematic page in case you want to build something
> on your own.
Nice drawing. What if I needed h/w flow control for some other
non-oberon application. How would the wiring change?
Tomas Kral <thomas.kral at email.cz>
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