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Article #4655

Re: Activity light on ST225

#4655
From: Justin A. Smith
Date: Thu, 24 May 1990 14:14
35 lines
2008 bytes
grege@gold.GVG.TEK.COM (Greg Ebert) writes:

>In article <916@cameron.egr.duke.edu> wdp@dukee.egr.duke.edu (Dev Palmer) writes:
>>I recently installed a Seagate ST225 in my XT clone.  It works great, but I
>>can't get the drive activity light to come on. 
>>
>>None of the docs I have show any jumpers for "drive light".  Anybody out there
>>have any illuminating insights?

>The best way is to monitor the drive select signals on the drive control
>connector (34 pin). Pin 26 is Drive 'A', pin 28 is 'B'. Both signals are
>active-low. If they are driven by a 74XX part, hang the LED right on the
>signal, with a 470 ohm resistor to +5 volts.

>If you don't want to muck-around with the drives, try these:

...deleted....

a much simpler solution (if you dont want to muck around with drives) is
to use a small PD TSR called HDFLASH, I think its on my BBS, it puts
a 'smiley face' in the top right hand corner of the screen everytime the disk
is accessed. It prints an inverted one for writes, (one step better than a led)
This program was originally intended for hard card users who dont have
disk leds, but i found it usefull when my AT was under my desk and i could not
see the front.
 
If you want any more info drop me a line.

Justin Smith

-- 
----------------------------------------------------------------------------
             Justin Smith   SYSOP- Orange Crush BBS  (708) 359-5379
                        24 Hours USRobotics HST14400/V.32
Email UUNET smithju@motcid.uu.net  INTERNET motcid!smithju@chg.mcd.mot.com  
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!rutgers!usc!samsung!uunet!motcid!smithju
From: smithju@motcid.UUCP (Justin A. Smith)
Newsgroups: sci.electronics
Subject: Re: Activity light on ST225
Message-ID: <3196@galena2.UUCP>
Date: 24 May 90 14:14:50 GMT
References: <916@cameron.egr.duke.edu> <1017@gold.GVG.TEK.COM>
Distribution: usa
Organization: Motorola Inc., Cellular Infrastructure Div., Arlington Heights, IL
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