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DS2483 and owfs

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	DS2483 and owfs by Patryk-6 :: Rate this Message: \| View Threaded \| Show Only this Message While waiting on Raspberry Pi I was looking for connecting 1-wire bus to it. Probably the easiest(apart from GPIO) way is to use I2C devices. The only problem is that Raspi uses 3.3V I2C but Stuart Poulton published designs with few transistors that handle the different levels http://raspberrypi.homelabs.org.uk/raspberrypi-1-wire-expansion/ But there is a new chip from Maxim/Dallas that does this conversion so you can have %v on 1wire and 1.8V or 3.3V on I2C. It comes in two packages SOT/6(this one's easy to solder) TDFN-EP/8. I've seen it maybe a month ago but I couldn't get it anywhere. Now samples are available. It has strong pull up so it's suitable for parasite powered networks. http://www.maxim-ic.com/datasheet/index.mvp/id/7630 And I think a question for Paul is it supported yet? Maybe it's not so different from older I2C converter DS2482? Do You plan to support it in the future? -- p4trykx ------------------------------------------------------------------------------ Keep Your Developer Skills Current with LearnDevNow! The most comprehensive online learning library for Microsoft developers is just $99.99! Visual Studio, SharePoint, SQL - plus HTML5, CSS3, MVC3, Metro Style Apps, more. Free future releases when you subscribe now! http://p.sf.net/sfu/learndevnow-d2d _______________________________________________ Owfs-developers mailing list Owfs-developers@... https://lists.sourceforge.net/lists/listinfo/owfs-developers
	Re: DS2483 and owfs by Paul Alfille-2 :: Rate this Message: \| View Threaded \| Show Only this Message The newer DS2483 seems to be software compatible with the older DS2482s. Single channel like the DS2482-100 and DS2482-101. Please test it and report if there are any problems that we will need to address. On Tue, Jan 24, 2012 at 6:53 PM, p4trykx <p4trykx@...> wrote: While waiting on Raspberry Pi I was looking for connecting 1-wire bus to it. Probably the easiest(apart from GPIO) way is to use I2C devices. The only problem is that Raspi uses 3.3V I2C but Stuart Poulton published designs with few transistors that handle the different levels http://raspberrypi.homelabs.org.uk/raspberrypi-1-wire-expansion/ But there is a new chip from Maxim/Dallas that does this conversion so you can have %v on 1wire and 1.8V or 3.3V on I2C. It comes in two packages SOT/6(this one's easy to solder) TDFN-EP/8. I've seen it maybe a month ago but I couldn't get it anywhere. Now samples are available. It has strong pull up so it's suitable for parasite powered networks. http://www.maxim-ic.com/datasheet/index.mvp/id/7630 And I think a question for Paul is it supported yet? Maybe it's not so different from older I2C converter DS2482? Do You plan to support it in the future? -- p4trykx ------------------------------------------------------------------------------ Keep Your Developer Skills Current with LearnDevNow! The most comprehensive online learning library for Microsoft developers is just $99.99! Visual Studio, SharePoint, SQL - plus HTML5, CSS3, MVC3, Metro Style Apps, more. Free future releases when you subscribe now! http://p.sf.net/sfu/learndevnow-d2d _______________________________________________ Owfs-developers mailing list Owfs-developers@... https://lists.sourceforge.net/lists/listinfo/owfs-developers ------------------------------------------------------------------------------ Keep Your Developer Skills Current with LearnDevNow! The most comprehensive online learning library for Microsoft developers is just $99.99! Visual Studio, SharePoint, SQL - plus HTML5, CSS3, MVC3, Metro Style Apps, more. Free future releases when you subscribe now! http://p.sf.net/sfu/learndevnow-d2d _______________________________________________ Owfs-developers mailing list Owfs-developers@... https://lists.sourceforge.net/lists/listinfo/owfs-developers
	Re: DS2483 and owfs by Stuart Poulton-4 :: Rate this Message: \| View Threaded \| Show Only this Message Hi, Well spotted, I'll take a look and re-work the PCB's (which havn't yet gone to FAB). I'm getting an initial run of 10 of each PCB (singe and octo channel) is there any interest in any spares ? Stuart On 24/01/12 23:53, p4trykx wrote: > While waiting on Raspberry Pi I was looking for connecting 1-wire bus to > it. Probably the easiest(apart from GPIO) way is to use I2C devices. > The only problem is that Raspi uses 3.3V I2C but Stuart Poulton published > designs with few transistors that handle the different levels > http://raspberrypi.homelabs.org.uk/raspberrypi-1-wire-expansion/ > > But there is a new chip from Maxim/Dallas that does this conversion so you > can have %v on 1wire and 1.8V or 3.3V on I2C. It comes in two packages > SOT/6(this one's easy to solder) > TDFN-EP/8. I've seen it maybe a month ago but I couldn't get it anywhere. > Now samples are available. It has strong pull up so it's suitable for > parasite powered networks. > http://www.maxim-ic.com/datasheet/index.mvp/id/7630 > > And I think a question for Paul is it supported yet? Maybe it's not so > different from older I2C converter DS2482? Do You plan to support it in > the future? > ------------------------------------------------------------------------------ Keep Your Developer Skills Current with LearnDevNow! The most comprehensive online learning library for Microsoft developers is just $99.99! Visual Studio, SharePoint, SQL - plus HTML5, CSS3, MVC3, Metro Style Apps, more. Free future releases when you subscribe now! http://p.sf.net/sfu/learndevnow-d2d _______________________________________________ Owfs-developers mailing list Owfs-developers@... https://lists.sourceforge.net/lists/listinfo/owfs-developers
	Re: DS2483 and owfs by MickSulley :: Rate this Message: \| View Threaded \| Show Only this Message I will definitely buy a RaspberryPi as soon as they are available, and will want to interface to 1-wire. I had assumed that USB would be the way to go. Would these boards provide a faster/cheaper/more reliable way to communicate? On 25/01/12 11:42, Stuart Poulton wrote: > Hi, > > Well spotted, I'll take a look and re-work the PCB's (which havn't yet > gone to FAB). > > I'm getting an initial run of 10 of each PCB (singe and octo channel) is > there any interest in any spares ? > > Stuart > > On 24/01/12 23:53, p4trykx wrote: >> While waiting on Raspberry Pi I was looking for connecting 1-wire bus to >> it. Probably the easiest(apart from GPIO) way is to use I2C devices. >> The only problem is that Raspi uses 3.3V I2C but Stuart Poulton published >> designs with few transistors that handle the different levels >> http://raspberrypi.homelabs.org.uk/raspberrypi-1-wire-expansion/ >> >> But there is a new chip from Maxim/Dallas that does this conversion so you >> can have %v on 1wire and 1.8V or 3.3V on I2C. It comes in two packages >> SOT/6(this one's easy to solder) >> TDFN-EP/8. I've seen it maybe a month ago but I couldn't get it anywhere. >> Now samples are available. It has strong pull up so it's suitable for >> parasite powered networks. >> http://www.maxim-ic.com/datasheet/index.mvp/id/7630 >> >> And I think a question for Paul is it supported yet? Maybe it's not so >> different from older I2C converter DS2482? Do You plan to support it in >> the future? >> > > > > ------------------------------------------------------------------------------ > Keep Your Developer Skills Current with LearnDevNow! > The most comprehensive online learning library for Microsoft developers > is just $99.99! Visual Studio, SharePoint, SQL - plus HTML5, CSS3, MVC3, > Metro Style Apps, more. Free future releases when you subscribe now! > http://p.sf.net/sfu/learndevnow-d2d > _______________________________________________ > Owfs-developers mailing list > Owfs-developers@... > https://lists.sourceforge.net/lists/listinfo/owfs-developers ------------------------------------------------------------------------------ Keep Your Developer Skills Current with LearnDevNow! The most comprehensive online learning library for Microsoft developers is just $99.99! Visual Studio, SharePoint, SQL - plus HTML5, CSS3, MVC3, Metro Style Apps, more. Free future releases when you subscribe now! http://p.sf.net/sfu/learndevnow-d2d _______________________________________________ Owfs-developers mailing list Owfs-developers@... https://lists.sourceforge.net/lists/listinfo/owfs-developers
	Re: DS2483 and owfs by Chris Lautre :: Rate this Message: \| View Threaded \| Show Only this Message I was thinking the same. I have a Sheevaplug which I am currently using - with USB to 1Wire converter. My total lack of knowledge about I2C devices obviously does not help. Could you offer some pointers to get more info? Chris On 25/01/2012 14:17, Mick Sulley wrote: > I will definitely buy a RaspberryPi as soon as they are available, and > will want to interface to 1-wire. I had assumed that USB would be the > way to go. Would these boards provide a faster/cheaper/more reliable > way to communicate? > > On 25/01/12 11:42, Stuart Poulton wrote: >> Hi, >> >> Well spotted, I'll take a look and re-work the PCB's (which havn't yet >> gone to FAB). >> >> I'm getting an initial run of 10 of each PCB (singe and octo channel) is >> there any interest in any spares ? >> >> Stuart >> >> On 24/01/12 23:53, p4trykx wrote: >>> While waiting on Raspberry Pi I was looking for connecting 1-wire bus to >>> it. Probably the easiest(apart from GPIO) way is to use I2C devices. >>> The only problem is that Raspi uses 3.3V I2C but Stuart Poulton published >>> designs with few transistors that handle the different levels >>> http://raspberrypi.homelabs.org.uk/raspberrypi-1-wire-expansion/ >>> >>> But there is a new chip from Maxim/Dallas that does this conversion so you >>> can have %v on 1wire and 1.8V or 3.3V on I2C. It comes in two packages >>> SOT/6(this one's easy to solder) >>> TDFN-EP/8. I've seen it maybe a month ago but I couldn't get it anywhere. >>> Now samples are available. It has strong pull up so it's suitable for >>> parasite powered networks. >>> http://www.maxim-ic.com/datasheet/index.mvp/id/7630 >>> >>> And I think a question for Paul is it supported yet? Maybe it's not so >>> different from older I2C converter DS2482? Do You plan to support it in >>> the future? >>> >> >> >> ------------------------------------------------------------------------------ >> Keep Your Developer Skills Current with LearnDevNow! >> The most comprehensive online learning library for Microsoft developers >> is just $99.99! Visual Studio, SharePoint, SQL - plus HTML5, CSS3, MVC3, >> Metro Style Apps, more. Free future releases when you subscribe now! >> http://p.sf.net/sfu/learndevnow-d2d >> _______________________________________________ >> Owfs-developers mailing list >> Owfs-developers@... >> https://lists.sourceforge.net/lists/listinfo/owfs-developers > ------------------------------------------------------------------------------ > Keep Your Developer Skills Current with LearnDevNow! > The most comprehensive online learning library for Microsoft developers > is just $99.99! Visual Studio, SharePoint, SQL - plus HTML5, CSS3, MVC3, > Metro Style Apps, more. Free future releases when you subscribe now! > http://p.sf.net/sfu/learndevnow-d2d > _______________________________________________ > Owfs-developers mailing list > Owfs-developers@... > https://lists.sourceforge.net/lists/listinfo/owfs-developers > ------------------------------------------------------------------------------ Keep Your Developer Skills Current with LearnDevNow! The most comprehensive online learning library for Microsoft developers is just $99.99! Visual Studio, SharePoint, SQL - plus HTML5, CSS3, MVC3, Metro Style Apps, more. Free future releases when you subscribe now! http://p.sf.net/sfu/learndevnow-d2d _______________________________________________ Owfs-developers mailing list Owfs-developers@... https://lists.sourceforge.net/lists/listinfo/owfs-developers
	Re: DS2483 and owfs by Patryk-6 :: Rate this Message: \| View Threaded \| Show Only this Message Dnia 25-01-2012 o 13:17:00 Mick Sulley <mick@...> napisał(a): > I will definitely buy a RaspberryPi as soon as they are available, and > will want to interface to 1-wire. I had assumed that USB would be the > way to go. Would these boards provide a faster/cheaper/more reliable > way to communicate? I think it's cheaper that USB converter and most important you don't waste an USB port. Most USB devices comprise of DS2480B and some usb<->serial converter like FT23RL. With 2482-800 you can get 8 buses which you can switch between. Works like 1 master with a hub. For smaller networks the new DS2483 is better than DS2482-100 because it has strong pull up which can provide power for sensors. However I have no practical knowledge how those i2c work I just read the datasheets of those chips. As soon as Raspi is available I plan to use them. -- p4trykx ------------------------------------------------------------------------------ Keep Your Developer Skills Current with LearnDevNow! The most comprehensive online learning library for Microsoft developers is just $99.99! Visual Studio, SharePoint, SQL - plus HTML5, CSS3, MVC3, Metro Style Apps, more. Free future releases when you subscribe now! http://p.sf.net/sfu/learndevnow-d2d _______________________________________________ Owfs-developers mailing list Owfs-developers@... https://lists.sourceforge.net/lists/listinfo/owfs-developers
	Re: DS2483 and owfs by ekgnkb3d :: Rate this Message: \| View Threaded \| Show Only this Message Did anybody meanwhile have experience with the new DS2483 I²C BusMaster? Is it really software compatible to the older DS2482-100: I saw that the new uses two I2C addresses, fixed 0x30 for writing and 0x31 for reading. Whereas the old uses one address for both (e.g. 0x18 if the address pins ar both on GND). And there seems to be some timing parameters, maybe the defaults are good enough to not care about it. It still seems difficult to get these devices, DigiKey only offers it at 2500 pcs and I can't found any other distributor. So have somebody the DS2483 running with OWFS? Achim
	Re: DS2483 and owfs by Patryk-6 :: Rate this Message: \| View Threaded \| Show Only this Message Dnia 28.04.2012 o 10:52 ekgnkb3d <achimrs@...> ekgnkb3d <achimrs@...> napisał(a): > So have somebody the DS2483 running with OWFS? I have 2 samples and I plan to test it with OSIF(i2c-usb converter based on atmega8) You can see my last mail with schematics and library with DS2483 for Eagle in ubs-i2c-1wire thread. It's very tiny but I hope I'll mange to solder it. However the whether is good and I'm stuck in the garden ;-) You can order samples od DS2483 from Maxim for free. -- p4trykx ------------------------------------------------------------------------------ Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ _______________________________________________ Owfs-developers mailing list Owfs-developers@... https://lists.sourceforge.net/lists/listinfo/owfs-developers