Forwarded due to being sent while list was down - see also more messages to come. -------- Original Message -------- Subject: Re: [Balloon] Balloon 3 Samtec pinout - first proposal Date: Fri, 24 Jun 2005 15:12:02 +0100 From: Chris Jones To: david@itechnic.co.uk CC: 'Steve Wiseman' , 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/