Rockbox mail archive
Subject: Re: Schematics for JBS20 needed (ATA 44 pins)Re: Schematics for JBS20 needed (ATA 44 pins)
- Contemporary messages sorted: [ by date ] [ by thread ] [ by subject ] [ by author ] [ by messages with attachments ]
From: Linus Nielsen Feltzing <linus_at_haxx.se>
Date: Thu, 03 Jun 2004 13:32:02 +0200
Markus Grebenstein wrote:
> OK thanks. Do you know if the violtage on PIN 42 (Motor) and/or 41
> (Logic) should be 5V all the time, when teh processor is running?
On the newer Studio models, the hard drive power can be controlled by
the CPU, with port pin PB4. However, the firmware enables the HD power
early in the boot sequence and never turns it off again.
Linus
_______________________________________________
http://cool.haxx.se/mailman/listinfo/rockbox
Received on 2004-06-03
Date: Thu, 03 Jun 2004 13:32:02 +0200
Markus Grebenstein wrote:
> OK thanks. Do you know if the violtage on PIN 42 (Motor) and/or 41
> (Logic) should be 5V all the time, when teh processor is running?
On the newer Studio models, the hard drive power can be controlled by
the CPU, with port pin PB4. However, the firmware enables the HD power
early in the boot sequence and never turns it off again.
Linus
_______________________________________________
http://cool.haxx.se/mailman/listinfo/rockbox
Received on 2004-06-03
Page template was last modified "Tue Sep 7 00:00:02 2021" The Rockbox Crew -- Privacy Policy