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From: bjoern@drdhh.hanse.de (Bjoern Kriews)
Newsgroups: comp.sys.atari.st.tech
Subject: Re: keyboard pin-outs wanted.
Message-ID: <3473.06.91@drdhh.hanse.de>
Date: 16 Jun 91 06:43:38 GMT
References: <1991Jun11.170551.612@vax1.mankato.msus.edu>
Reply-To: bjoern@drdhh.hanse.de
Organization: Digital Island
Lines: 43

bd6@vax1.mankato.msus.edu writes:
>   I plan on "extending" my keyboard.  And i don't know if i just missed it or
>what.  But i would like to know the pin-outs for the keyboard jack. (that ugly
>17 pin thing.)  I would like to know all the pin-outs, so i can also connect my
>mouse and whatever else, to the keyboard.  So i need al little as possible
>wires from the keyboard to the computer.

Below is the layout for a standard ST keyboard, on Mega-ST's KBDAssy, pin 18
is missing.

(01) ground
(02) (no pin, protection)
(03) J1 R
(04) J1 L 
(05) J1 D 
(06) MBut R / J1 Fire
(07) J1 U
(08) M Y2 / J0 R
(09) M Y1 / J0 L
(10) M X1 / J0 D
(11) MBut L / J0 Fire
(12) M X2 / J0 U
(13) VCC (+5V)
(14) TxData -> 6850  
(15) RxData <- 6850  
(16) Reset (not used but working on Mega-ST KBD)
(17) J1 Pin 5
(18) KBDClk 4 Mhz

Hope that helps, Bjoern

btw: The keyboard circuit diagram says something about pin 37 of 6301 chip
being used as a Caps-Lock indicator -> transistor -> led.
Anyone ever got this feature to work ?
I have achieved nothing, so I think it has to be made in IKBD's OS.

Answers via mail, please.



---
bjoern@drdhh.hanse.de = Bjoern Kriews / Stormsweg 6 / 2000 Hamburg 76 / FRG
"gaaga mahwe Bjoern urgl ufzae Turbo-C bnub"     (J. Willamowius)