From: John R. <jo...@ru...> - 2007-02-26 16:19:21
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1) There's a Net-MMC board, so why not a Wifistix-MMC board (like the wifistix-cf, only remove the CF slot and replace it with an MMC slot). 2) A board that has Wifi and 3G/GSM/GPRS (and maybe an MMC/SD slot). 3) 3G/GSM/GPRS and CF |
From: Craig H. <cr...@gu...> - 2007-02-26 22:14:36
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On Feb 26, 2007, at 8:19 AM, John Rudd wrote: > 1) There's a Net-MMC board, so why not a Wifistix-MMC board (like the > wifistix-cf, only remove the CF slot and replace it with an MMC slot). Because the wifi module is connected to the CF controller, and CF and MMC are mututally exclusive on the PXA255. > 2) A board that has Wifi and 3G/GSM/GPRS (and maybe an MMC/SD slot). Working on it. > 3) 3G/GSM/GPRS and CF Working on it. Actually, the GSM stuff is on the 60-pin side, so you can put MMC or CF or whatever you want (including wifi etc) on the other side. C |
From: Vic <gu...@be...> - 2007-02-26 22:47:58
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> Working on it. You know what I'd like to see? A UK distributor - so I don't have to pay assorted fees to get the boards into the country. Gumstix is a great product - but once you've paid P&P, and then added 30% to the total bill, it's fairly expensive... Thoughts? Vic. |
From: Ed W <li...@wi...> - 2007-03-02 11:53:57
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Vic wrote: > You know what I'd like to see? > > A UK distributor - so I don't have to pay assorted fees to get the boar= ds > into the country. > =20 OK, I'll step up for that one. So what are they in USD, about $100? =20 OK, buy them here for =A3105 each... Ed W |
From: John R. <jo...@ru...> - 2007-03-05 09:49:21
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Craig Hughes wrote: > On Feb 26, 2007, at 8:19 AM, John Rudd wrote: > >> 1) There's a Net-MMC board, so why not a Wifistix-MMC board (like the >> wifistix-cf, only remove the CF slot and replace it with an MMC slot). > > Because the wifi module is connected to the CF controller, and CF and > MMC are mututally exclusive on the PXA255. > Does that mean that you could, in theory, make an expansion board with 2 CF slots? Why not do that? (and, if that IS the case, why does the cfstix only have one CF slot?) And, while we're there, PCMCIA/PC-Card is supposed to be identical to CF, just in different form factors and connector size/layout. The problem is that while lots of people make a PCMCIA card that will hold a CF card (making every laptop capable of using CF cards) ... I've only found one device that lets you put a PCMCIA card into a CF slot, and it only works with 16 bit PCMCIA cards, and not 32 bit ones. Plus, the CF slot faces off the side of the expansion board. That makes sense for a CF card, but if you're trying to hang a CF->PCMCIA adapter, and then an entire PCMCIA card, off of the side of the Gumstix then takes up a ton of room ... My first several board suggestions were based on looking at what was offered and what was missing from that. Having taken more time, looking at the three projects I want to do, and what it would take to make them happen, I can boil this down to two boards I specifically want to utilize: 1) cfstix-2 : a gumstix expansion with 2 CF slots. The ability to have BOTH a CF hard drive for an extended OS install, AND a CF card for other uses is MUCH more flexible than forcing everyone to choose between storage OR flexible peripheral selection (or project specific peripherals). I don't propose deleting the cfstix from the offerings though, as the slowly lower profile of just one cf slot might appeal to some people. 2) a gumstix board that starts with the cfstix-2 idea, turns the connector side ways, and replaces it with a PCMCIA card holder (2 slots). So, in the end, you'll have a PCMCIA card that runs parallel to the gumstix, and covers the gumstix boards (ie. don't arrange it to stick out the other side, like the way the tweener board sticks out). Sure, PCMCIA cards are HUGE compared to gumstix boards ... but they offer a type and range of flexibility that doesn't come with other, similar, embedded expansion boards. Further, the CF market seems to be getting smaller and smaller lately. 3) Variations might be nice. A board with 1 PCMCIA slot (for reduced profile, not to replace the other slot with another capability). Or a board that has 1 CF card slot and one PCMCIA card slot (you could easily accomplish this with item #2 above, using an adapter, but I've seen a few PC-104 boards that do this, so it might be useful here). And, of course, knowing when verdex is going to be available would be nice too. Two of the projects I want to work on will need USB host capability. Trying to accomplish that via CF->PCMCIA adapter with a PCMCIA USB card plugged into it makes for a HUGE footprint that I don't otherwise need to have. Further, it may not actually work because I don't know if the PCMCIA USB card is 16 bit or 32 bit. What I think I actually need for my projects are: A) Essentially, a pocket, battery powered, version of the Globesurfer II 7.2, from Option Wireless Technology. * USB host (and maybe USB client) * Two PCMCIA slots OR 1 PCMCIA slot and one CF slot. (2 PCMCIA would be better, though) B) A Linux PDA, similar in concept to the Sony Mylo and Nokia N800. * USB client * USB host * some form of storage (pref. not via the USB host, nor bluetooth) * Either a CF slot or a PCMCIA slot (pref. PCMCIA) C) Purely a lark, based on the original star trek tricorder. * a usable CF slot (could be PCMCIA, but CF is actually better) (there's a company that makes a wide range of CF cards that are environmental sensors * two storage devices (one could be USB host, but I'd prefer CF) (why 2? one for a larger OS install to hold programs and drivers around the array of swappable sensors, and one to be removable for recording the data the sensors collect) I suppose I could do a preliminary version of the PDA project, without USB Host and using Bluetooth for communication (for network access and/or storage)... but, I can't really do what I want using Gumstix until I have at least USB Host. |
From: Andrei R. <po...@gm...> - 2007-02-27 03:00:22
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Shipping is a canny business. It took 60 cents to send a gumstix for reflash and $6 to get it back, in addition to the service charge. But I have no thoughts ;-) On 2/26/07, Vic <gu...@be...> wrote: > > Working on it. > > You know what I'd like to see? > > A UK distributor - so I don't have to pay assorted fees to get the boards > into the country. > > Gumstix is a great product - but once you've paid P&P, and then added 30% > to the total bill, it's fairly expensive... > > Thoughts? > > Vic. |
From: Jesse W. <jes...@gm...> - 2007-02-27 04:24:45
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I'd like to see a stackable version of the robostix that communicates through i2c. so what you'd have is a tweener like robostix that doesn't breakout any pins top or bottom but to the side and has internal connect to i2c and power bus and still get's programed the same way (longer jumpers ofcourse). hard part would be to figure out how to turn it on and off (ala current robostix). Or a 92 pin robostix that uses the at90can128 that also has a MMC slot, and maybe some i2c a2d converters for more sampling channels. I'd pay near $100 for that. as long as we were tossing out crazy ideas................ On 2/26/07, Andrei Rylin <po...@gm...> wrote > Shipping is a canny business. It took 60 cents to send a gumstix for reflash > and $6 to get it back, in addition to the service charge. > But I have no thoughts ;-) > > On 2/26/07, Vic <gu...@be...> wrote: > > > Working on it. > > > > You know what I'd like to see? > > > > A UK distributor - so I don't have to pay assorted fees to get the boards > > into the country. > > > > Gumstix is a great product - but once you've paid P&P, and then added 30% > > to the total bill, it's fairly expensive... > > > > Thoughts? > > > > Vic. > > ------------------------------------------------------------------------- > Take Surveys. Earn Cash. Influence the Future of IT > Join SourceForge.net's Techsay panel and you'll get the chance to share your > opinions on IT & business topics through brief surveys-and earn cash > http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV > _______________________________________________ > gumstix-users mailing list > gum...@li... > https://lists.sourceforge.net/lists/listinfo/gumstix-users > -- -Jesse W. |
From: Vic <gu...@be...> - 2007-02-27 23:02:11
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> you'd start to think $6 was a bargain. Indeed I would. I ended up getting stung $40ish for import duties (which is unavoidable, I guess) - and *then* a further $20 in "agent fees" or somesuch cobblers. Finding a way to bring units in without that sort of overhead would make things very much more attractive over here... Vic. |
From: Craig H. <cr...@gu...> - 2007-02-28 00:56:20
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On Feb 27, 2007, at 3:01 PM, Vic wrote: >> you'd start to think $6 was a bargain. > > Indeed I would. > > I ended up getting stung $40ish for import duties (which is > unavoidable, I > guess) - and *then* a further $20 in "agent fees" or somesuch > cobblers. > > Finding a way to bring units in without that sort of overhead would > make > things very much more attractive over here... Yup, the import duties are unavoidable (write your elected official!). The "agent fees" thing we're looking into; I agree that one should probably be lowered if it can be. C |
From: DJ D. <dj...@de...> - 2007-02-28 01:18:32
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Craig Hughes <cr...@gu...> writes: > Yup, the import duties are unavoidable (write your elected > official!). The "agent fees" thing we're looking into; I agree that > one should probably be lowered if it can be. Does the gumstix qualify as "electronic components" or "computer systems?" Since it's not a complete system (er, except the waysmalls), need it be taxed at the complete system rate? |
From: Andrei R. <po...@gm...> - 2007-03-01 08:31:44
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Want to throw in a wild idea. IMO, single most attractive feature of the Gumstix is its small size. On the other hand, single least attractive feature is expandability. What if create a "Gum-bus" following the same principles used in NIM, Camac, VMEBus etc, but in a pocket-sized scale ? Here's a picture of VME crate with some modules: http://amanda.uci.edu/twr/twr02/TWR_VME_lights.jpg Imaging a "crate" the size of a soap box with "Gumstix" and other expansion modules inside. I don't know, maybe NASA or Boeing have something of that sort for their flight electronics ? |
From: John R. <jo...@ru...> - 2007-03-01 10:17:22
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Andrei Rylin wrote: > Want to throw in a wild idea. IMO, single most attractive feature > of the Gumstix is its small size. On the other hand, single least > attractive feature is expandability. What if create a "Gum-bus" > following the same principles used in NIM, Camac, VMEBus etc, > but in a pocket-sized scale ? > Here's a picture of VME crate with some modules: > http://amanda.uci.edu/twr/twr02/TWR_VME_lights.jpg > Imaging a "crate" the size of a soap box with "Gumstix" > and other expansion modules inside. > I don't know, maybe NASA or Boeing have something of that sort > for their flight electronics ? Seems like what you want is an even smaller version of the PC104 bus. Then you could just stack gumsticks as deep as you want, in whatever combination you want, and they'd all use the same connector instead of 2-4 different connector form factors. The tweener board sort of shows it's possible, in a way. But that might be because it uses components that aren't going to collide with similar components on other boards, or something. |
From: Julien L. <les...@ho...> - 2007-03-01 11:15:28
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Hi, Lol, NASA or Boeing have a LOT of space for their system I think, comparing to the size of the gumstix :) What about a shared bus, somehow like a small scale PCIX bus :p ?? I would like to have that sort of bus, would make my life easier to implement fast peripherals. Julien >Andrei Rylin wrote: > > Want to throw in a wild idea. IMO, single most attractive feature > > of the Gumstix is its small size. On the other hand, single least > > attractive feature is expandability. What if create a "Gum-bus" > > following the same principles used in NIM, Camac, VMEBus etc, > > but in a pocket-sized scale ? > > Here's a picture of VME crate with some modules: > > http://amanda.uci.edu/twr/twr02/TWR_VME_lights.jpg > > Imaging a "crate" the size of a soap box with "Gumstix" > > and other expansion modules inside. > > I don't know, maybe NASA or Boeing have something of that sort > > for their flight electronics ? > > >Seems like what you want is an even smaller version of the PC104 bus. >Then you could just stack gumsticks as deep as you want, in whatever >combination you want, and they'd all use the same connector instead of >2-4 different connector form factors. > >The tweener board sort of shows it's possible, in a way. But that might >be because it uses components that aren't going to collide with similar >components on other boards, or something. > >------------------------------------------------------------------------- >Take Surveys. Earn Cash. Influence the Future of IT >Join SourceForge.net's Techsay panel and you'll get the chance to share >your >opinions on IT & business topics through brief surveys-and earn cash >http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV >_______________________________________________ >gumstix-users mailing list >gum...@li... >https://lists.sourceforge.net/lists/listinfo/gumstix-users _________________________________________________________________ Testez Windows Llive Mail Beta ! http://www.msn.fr/newhotmail/Default.asp?Ath=f |
From: Pascal <pa...@pa...> - 2007-03-01 15:51:00
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John Rudd wrote: > 2) A board that has Wifi and 3G/GSM/GPRS (and maybe an MMC/SD slot). I want a "radiostix" or "SDRstix": - Tunable up- and down-converters (27-6000 MHZ would be nice :-) - Quadrature ADCs and DACs capable of several MSPS - Duplexer, LNA, power amplifier - Solder pads for user-selectable SAW filters - FPGA for glue logic. Then we can do R/C, FM, DVB, WiFi, GSM/GPRS, Bluetooth, ZigBee, Wibree etc, all in software. Note sure about WCDMA (3G). UWB (Wireless USB) might need a dedicated expansion board. FCC and CE approval marks would be a plus :-) Pascal |
From: John R. <jo...@ru...> - 2007-03-01 19:55:48
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Pascal wrote: > John Rudd wrote: >> 2) A board that has Wifi and 3G/GSM/GPRS (and maybe an MMC/SD slot). > > I want a "radiostix" or "SDRstix": > > - Tunable up- and down-converters (27-6000 MHZ would be nice :-) > - Quadrature ADCs and DACs capable of several MSPS > - Duplexer, LNA, power amplifier > - Solder pads for user-selectable SAW filters > - FPGA for glue logic. > > Then we can do R/C, FM, DVB, WiFi, GSM/GPRS, Bluetooth, ZigBee, > Wibree etc, all in software. Note sure about WCDMA (3G). > UWB (Wireless USB) might need a dedicated expansion board. > > FCC and CE approval marks would be a plus :-) > That would be interesting... |