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Rockbox mail archiveSubject: Re: hard drive activity indicatorRe: hard drive activity indicator
From: Justin <jaf60_at_it.canterbury.ac.nz>
Date: Wed, 08 May 2002 12:00:10 -0700 > hey, really appreciate the work you all are doing - > very cool indeed! I second that! > i have a question. i was thinking of modding my > jukebox to change the red LED to be the hard drive > activity indicator (tie it to pin 39 of the IDE > interface). does this LED serve any useful purpose? > i have never seen it turn on...this is why i ask. > what do you guys think? You should have seen it turn on (jukebox player or recorder?). I have the recorder, and the software flashes the light when it thinks it's busy (which often is when it is busy, but seems kind of arbitrary - other people on this list no-doubt know more) So mine works, and no, it doesn't really seem to serve much in the way of a useful purpose :) > or is there any way in software to patch something to > do this? or is this pin of the IDE interface not tied > to an I/O port or interrupt on the processor/hardware > that could be detected from software? I added an LED to pin 39 of my recorder ( http://www.geocities.com/safe-community/archos.html ) In the recorder at least, pin 39 is not connected to anything - the socket pin is just soldered to an isolated tab, so there is no way to detect its state from software. I guess that doesn't necessarily mean that the same information as pin 39 carries isn't carried elsewhere in the IDE connection, but if that were the case, I wouldn't know. Besides which, soldering a wire from the red LED to pin 39 is quicker and easier than a code solution (well, quicker for a one-off unit anyway. If you want to change 500,000 units then I'd suggest code... :-) Received on 2002-05-08 Page template was last modified "Tue Sep 7 00:00:02 2021" The Rockbox Crew -- Privacy Policy |