Forwarded due to being sent while list was down - see also more messages
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-------- Original Message --------
Subject: Re: [Balloon] Balloon 3 Samtec pinout - first proposal
Date: Fri, 24 Jun 2005 15:12:02 +0100
From: Chris Jones <
chris@martin-jones.com>
To:
david@itechnic.co.uk
CC: 'Steve Wiseman' <
steve@steves-house.org.uk>,
balloon@balloonboard.org
References: <000001c57739$35a8e6f0$0100a8c0@Alexander>
David Bisset wrote:
> Can we clarify the function of the following signals:
>
> RUN_NAND - Do we need it?
>
> NAND_RNB - Originally internal to Balloon2, therefore should just revert to
> GPIO.
>
> SAMOSA_ABSENT - What does it mean, a SAMOSA device is plugged in, or is
> powered and working? Why do we need it since the SAMOSA bus isn't on the
> backplane (and doesn't need to be).
I've now reallocated the pins that these were on to some spare GPIOs
(believe it or not, we do have some). They are now:
pin 148 was RUN_NAND now GPIO9
pin 172 was NAND_RNB now GPIO10
pin 176 was SM_ABSENT now GPIO103
They're a bit random, I agree, but probably more use than the old ones.
> NSLEEP - This used to be a very hardware signal that shut off the 5v
> switcher, it is now connected to GPIO so cannot fulfil its original
> function. Should this become GPIO or is there a real "TURN IT ALL OFF"
> signal that this should be connected to. (Having said this I've never used
> it).
I've left this one, because I think it might be handy.
New document on the web when I get back to the office: I'm mobile at the
moment and laptop's PDF writer is broken.
Chris
--
Chris Jones -
chris@martin-jones.com
Martin-Jones Technology Ltd, makers of Solidlights
148 Catharine Street, Cambridge, CB1 3AR, UK
Phone +44 (0) 1223 474968 Fax +44 (0) 870 112 3908
http://www.solidlights.co.uk/
--
Chris Jones -
chris@martin-jones.com
Martin-Jones Technology Ltd, makers of Solidlights
148 Catharine Street, Cambridge, CB1 3AR, UK
Phone +44 (0) 1223 474968 Fax +44 (0) 870 112 3908
http://www.solidlights.co.uk/
(text/plain)