Re: OpenBSD & Serial LCD

From: Mark Zimmerman (markzimm_at_io.frii.com)
Date: 08/24/04


Date: 24 Aug 2004 14:14:12 GMT

On 2004-08-24, Ano Niem <spulletjes7500@hotmail.com> wrote:
> Hi there,
>
> i am a little experienced in OpenBSD, but I am not able to use my LCD
> screen.
>
> It is connected to a serial port on my i386, it uses vt100 emulation.
>
> On other OS'es I can send text to it using
> echo "Hi there" > /dev/ttyS0 (for example)
>
> But under OpenBSD it does not do anything.
>
> The LCD does not have modem control signals,
> so the OS should not test anything just send the raw characters...
>
> So my conlusion is that I need to manipulate the serial port is a certain
> way..
>
> I tried to make getty use a vt100 on the port,
> but it still does not write anything
> (probably it is still using modem control signals)
>
> I hope that you guys understand my problem and do have a solution.
>
> Thanks for your answer
>
>

What is your /etc/ttys entry for tty00?



Relevant Pages

  • OpenBSD & Serial LCD
    ... i am a little experienced in OpenBSD, but I am not able to use my LCD ... It is connected to a serial port on my i386, ... But under OpenBSD it does not do anything. ... The LCD does not have modem control signals, ...
    (comp.unix.bsd.openbsd.misc)
  • Re: OpenBSD & Serial LCD: Solution
    ... Today I installed OpenBSD 3.5, and now I have the same devices as under ... > i am a little experienced in OpenBSD, but I am not able to use my LCD ... > So my conlusion is that I need to manipulate the serial port is a certain ... > (probably it is still using modem control signals) ...
    (comp.unix.bsd.openbsd.misc)
  • Re: Getting nonstandard serial baud rates w/FTDI
    ... serial port at 250000 baud. ... You need to add support in the uftdi driver itself. ... There is an OpenBSD patch to calculate the rates dynamically: ... Something similar is commited to OpenBSD, ...
    (freebsd-hackers)
  • SBC Vendors
    ... We're getting closer and closer to having to actually pick a board / ... GPIO lines for a character LCD ... Serial port for a printer ...
    (comp.os.linux.embedded)
  • Re: Reading from serial port through a DLL
    ... The LCD display has a keyboard connected to ... >it and sets the keystrokes on the LCD back through the serial port. ... >would be done inside a separate DLL as a sort of minidriver. ...
    (alt.comp.lang.borland-delphi)