Article View: sci.electronics
Article #4655Re: Activity light on ST225
From: Justin A. Smith
Date: Thu, 24 May 1990 14:14
Date: Thu, 24 May 1990 14:14
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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
--
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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 Lines: 35