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Old 01-16-2008, 04:08 PM
Manuel Reimer
 
Posts: n/a
Default Re: Sun Keyboard on PC and max232 IC

Michael Laajanen wrote:
> Okey, you want to use a Sunkeyboard to a PC running Unix right?


Yes

> And you accept that the box will not be possible to control via the
> keyboard until Unix is loaded.


It would be nice to control Lilo, but it wouldn't be a problem if this
is impossible (I only switch between main and backup kernel. I never
needed my backup and if I ever need I may connect a PS/2 keyboard to fix
my system)

> http://www.iptel-now.de/HOWTO/SUN_SE...erial_kbd.html


Yes, I know about this, but the "inverter" they use between Keyboard and
Max232 isn't available on reichelt.de and I don't know which alternative
will work.

> Is that what you want, then it is just to start soldering, the
> capacitors is needed unless you have +/-12V somewhere then you could use
> MAX1488/MAX1489 instead!


No, I don't have 12V. But the capacitors aren't a big problem. I'll just
juse a bigger case.

> I am really unsure if you need to connect transmitt from the serial port
> on the PC to the sunkeyboard, is that so what is the PC transmitting,
> any clue?


Maybe the status of the LEDs?

CU

Manuel

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