Selling Freerunner (GTA02) for 100€ (125€ if you want to have it with a 16 G B Micro-SD card)plus shipping costs from Germany
Hi, since I increasingly have less time to try out / work on my Freerunner I am selling it. It is in good shape, comes Buzz-Fixed with a 2nd Battery, Charger and a screen-cover. It currently holds a 16 GB Micro SD Card that is optional. Its Date-Code is 20080619, so it is probably one of the phones from the first batch. The Freerunner is undamaged and fully working. Please get in contact with me if you are interested. In case you are from around Stuttgart (Germany) we can arrange a meeting for the device-handover. Regards, Bernhard ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
Re: [GTA04] When is the next and more powerful openmoko releasing
Am 22.10.2010 um 19:17 schrieb Gennady Kupava: В Птн, 22/10/2010 в 05:36 -0700, RANJAN пишет: Hello, Recommendations for better hardware on Openmoko. 1)A 600 Mhz processor is minimally required to run the OS at usable speeds.An 800 Mhz processor would be good across all OSes.A 1Ghz processor would be too costly Hi, Ranjan. I just want to say that memory subsystem speed is much more important for speed than cpu speed. While testing freerunner, i've found that performance of system primitives of 500/83 CPU is similar to 400/100. So, really it is much more important to have fast memory subsystem. So, for example, 600/100 will be really not so far from to freerunner's at 440/110. Memory subsystem speed become extremly important if CPU lack of L2 cache. What is cache(s) size(s) of GTA04's CPU? It comes with a OMAP3530 [1]: ARM CortexTM-A8 Memory Architecture: – 16K-Byte Instruction Cache (4-Way Set-Associative) – 16K-Byte Data Cache (4-Way Set-Associative) – 256K-Byte L2 Cache • 112K-Byte ROM • 64K-Byte Shared SRAM If you want to start to experiment with this CPU today (and not wait for the GTA04), I suggest to get a BeagleBoard + our Hybrid Board (Touch-Display + GPS). The perceived speed (not a scientific measurement) is factor 10 faster. Best regards, Nikolaus [1]: http://focus.ti.com/lit/ds/symlink/omap3530.pdf ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
I2C fm/am radio
Hello everyone, I'm willin if such a component exists and is suitable for our mobile... Does some of you have any experience, hint or idea? Giacomo ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
Re: [GTA04] When is the next and more powerful openmoko releasing
On Friday 22 October 2010, Dr. H. Nikolaus Schaller wrote: Am 22.10.2010 um 02:17 schrieb Al Johnson: On Friday 22 October 2010, EdorFaus wrote: On 10/21/2010 07:59 PM, Alfa21 wrote: you should try 3d print like this: snip made in ABS which is a good plastic and up to 0.01 inches resolution Unfortunately, that's not quite good enough (different units). 0.01 inches = 0.254 mm, which is 2.54 times the required size: On 10/21/2010 07:32 PM, Dr. H. Nikolaus Schaller wrote: the required precision (0.1 mm, 0.5 mm wall thickness, etc.) 0.1 mm is approximately 0.0039 inches. I have a question, though - is this precision required for making *any* well-working case design (due to the electronics etc.), or is it just for making more of the current case design? If it's the latter, it would be possible to create a new case design that would be easier to get manufactured... The electronics don't need much precision in the case design. Cases that clip together firmly and securely do need precision though, and that's true of the current design. An alternative design needing less precision is possible, especially if we accept things being screwed together. Generally yes. If we sacrifice quality, ergonomics, and size, we can find simpler and less expensive case constructions. I'm sure we can find alternative case construction methods that don't sacrifice much in any of those departments. They just won't be methods used in the mass market because they don't scale up to those production volumes, just as their methods don't scale down to ours. The pcb might need some design elements suited to a different method of mounting than the current 'clip it into the injection moulding' variety, but this is for future generations not the current pcb. One aspect to keep in mind for precision are the push-buttons (AUX and Power). The buttons [1] are specified for a Travel 0.3 mm +0.1 –0.2 mm. I.e. if we don't want that the buttons get stuck we come to this 0.1mm precision. We have experienced the same with the PCB design where the position of the buttons must be within these 0.1mm... That doesn't mean the case needs that tolerance though. It just means the end of the actuator needs to stick over the edge of the pcb by the right amount to be operable. The external button can be lightly spring to take up the tolerance, or rest slightly clear of the button actuator. Alternative switch types are an option for future designs, including a change to capacitive sensors as provided for by the v2 nav board. The same is with mounting the display. If that is not precise enough, touch operation will be deteriorated. Can you elaborate? There may be ways around this one too. So if we reduce precision of the case production process, the buttons become larger and finally, the phone is more a brick than a handheld phone :) Personally, I am in favour of high-end high-quality design (like the iPhone) even if it costs money. But it should never cost freedom and independence... high quality design doesn't have to be expensive to manufacture. I suspect something attractive could be made in low volume at a reasonable price using laser cut plastics. I'll try to ask the local cutters about their precision and cut thickness in different materials. ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
Re: I2C fm/am radio
On Saturday 23 October 2010, giacomo mariani wrote: Hello everyone, I'm willin if such a component exists and is suitable for our mobile... Does some of you have any experience, hint or idea? There doesn't seem to be a shortage of suitable chips. The problem will be integrating it into the existing design. There's a spare line input on the Wolfson chip I think, but you'll have to check whether they're accessible. ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
Re: [GTA04] When is the next and more powerful openmoko releasing
Am 23.10.2010 um 15:40 schrieb Al Johnson: On Friday 22 October 2010, Dr. H. Nikolaus Schaller wrote: Am 22.10.2010 um 02:17 schrieb Al Johnson: On Friday 22 October 2010, EdorFaus wrote: On 10/21/2010 07:59 PM, Alfa21 wrote: you should try 3d print like this: snip made in ABS which is a good plastic and up to 0.01 inches resolution Unfortunately, that's not quite good enough (different units). 0.01 inches = 0.254 mm, which is 2.54 times the required size: On 10/21/2010 07:32 PM, Dr. H. Nikolaus Schaller wrote: the required precision (0.1 mm, 0.5 mm wall thickness, etc.) 0.1 mm is approximately 0.0039 inches. I have a question, though - is this precision required for making *any* well-working case design (due to the electronics etc.), or is it just for making more of the current case design? If it's the latter, it would be possible to create a new case design that would be easier to get manufactured... The electronics don't need much precision in the case design. Cases that clip together firmly and securely do need precision though, and that's true of the current design. An alternative design needing less precision is possible, especially if we accept things being screwed together. Generally yes. If we sacrifice quality, ergonomics, and size, we can find simpler and less expensive case constructions. I'm sure we can find alternative case construction methods that don't sacrifice much in any of those departments. They just won't be methods used in the mass market because they don't scale up to those production volumes, just as their methods don't scale down to ours. The pcb might need some design Well, we have anlysed approx. 5 or 6 different methods and none was inexpensive for low volumes. The only one that came down below 50 EUR per case is injection moulding. But I would be happy if you can guide the GTA04 to a different approach. elements suited to a different method of mounting than the current 'clip it into the injection moulding' variety, but this is for future generations not the current pcb. Well, the current board is really mounted by 2 torx screws and the connectors which fit into holes on the sides. The hooks and clips are not really necessary, which allows for a lot of simplifications. This is where some of us are currently working on to get the plastics produceable by a RepRap. One aspect to keep in mind for precision are the push-buttons (AUX and Power). The buttons [1] are specified for a Travel 0.3 mm +0.1 –0.2 mm. I.e. if we don't want that the buttons get stuck we come to this 0.1mm precision. We have experienced the same with the PCB design where the position of the buttons must be within these 0.1mm... That doesn't mean the case needs that tolerance though. It just means the end of the actuator needs to stick over the edge of the pcb by the right amount to be operable. The external button can be lightly spring to take up the tolerance, or rest slightly clear of the button actuator. Alternative switch If I understand correctly, then the button would not fit smoothly into the case. It may stand out (or in) so it either gets trapped in the gauze of your trouser pockets, or you need long fingernails to press it. types are an option for future designs, including a change to capacitive sensors as provided for by the v2 nav board. Not completely. The power button must be a mechanical button to wake up the processor from deep sleep. Or we drain the battery for a always-powered sensor chip. And, I am not sure if a sensor contact is safe enough for a smartphone in a pocket. The same is with mounting the display. If that is not precise enough, touch operation will be deteriorated. Can you elaborate? There may be ways around this one too. The main thing is that the display bezel must be plane. Otherwise it may press on the display (touch) at one end and increase the risk of breaking the display glass. Or you get dust inside the device. On the other hand we know that the bezel of the Freerunner is already too thick. I.e. for better operation it should be much thinner. But still stable. Well, all this can be improved by changing the construction. So if we reduce precision of the case production process, the buttons become larger and finally, the phone is more a brick than a handheld phone :) Personally, I am in favour of high-end high-quality design (like the iPhone) even if it costs money. But it should never cost freedom and independence... high quality design doesn't have to be expensive to manufacture. I suspect something attractive could be made in low volume at a reasonable price using laser cut plastics. I'll try to ask the local cutters about their precision and cut thickness in different materials. I agree that just suspecting that it exists is not enough . We have already spent several months discussing and asking for quotes and everyone can make such things.
Re: [GTA04] When is the next and more powerful openmoko releasing
On 23/10/2010, at 9:40 AM, Al Johnson wrote: high quality design doesn't have to be expensive to manufacture. I suspect something attractive could be made in low volume at a reasonable price using laser cut plastics. I'll try to ask the local cutters about their precision and cut thickness in different materials. This is a totally un-researched idea, but ... What about a machined aluminium case? I would guess that rental of a CNC machine would not cost too much, and perhaps we could make an arrangement with a technical college or even commercial firm to use their equipment in otherwise idle times? d ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
Re: qmoko v28 with jitterless kernel
giacomo mariani wrote: But, yes there is a but, I can't ssh to the mobile. Looking, in qterminal, at the output of ifconfig everything looks as usual, but demsg givs some strange error when the USB cable is attached: g_ether gadget: full speed config #2: RNDIS is followed by a groing (maybe one per second) list of s3c24xx-ts s2c2440-ts: stylus_irq: count=1 It looks more like debug line then error, but i am not sure. Is ping to your phone working? Regards Radek ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
backup battery and case screws questions
Hi, Both of my Freerunners lose the time when the battery is removed for even a couple seconds. I am assuming this is due to worn out backup batteries. I have ordered replacements (they were marked HB414 and they were 2.40 each from digikey). I also got a better soldering iron for doing the install. Has anyone done this replacement before? any gotchas? Also,as anyone found a source for replacement torx case screws? Thanks, Ben ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
Re: backup battery and case screws questions
2010-10...@20:44 Benjamin Deering Has anyone done this replacement before? any gotchas? no, but I think it's not too difficult if you have a little experience with DIY. I've this (known) problem too but I'm afraid if I replace the battery it'll die as the old one... not sure... but I think I can live with that and so I never remove the main battery. Also,as anyone found a source for replacement torx case screws? I think it's easy to find in any good hardware shop (not computer-hardware eh! the one that sells you screwdrivers, electric drills Co.) -- ALFA21 IS PROVIDED AS IS AND WITHOUT WARRANTIES OF ANY KIND, EXPRESS OR IMPLIED. ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
