USB-debug // FTDI FT2232D -- need more specs for particular hw design

2008-04-29 Thread Joerg Reisenweber
Hi Andy, Andy Green schrieb: | Power isn't the only consideration, we already thought about bringing | out debug USB connector to the outside world. If that is what we do, | then it is sitting there ready to eat power the same as the OTG | connector, and it makes sense to allow it. OK,

GTA02 spare batttery

2008-07-13 Thread Joerg Reisenweber
5€ noname works for me /jOERG attachment: img045.jpg signature.asc Description: This is a digitally signed message part. ___ hardware mailing list hardware@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/hardware

Re: GPS issue related to GPS antenna selector ?

2008-07-13 Thread Joerg Reisenweber
Am So 13. Juli 2008 schrieb Philippe Guillebert: Hello, Thanks to http://wiki.openmoko.org/wiki/Freerunner_Hardware_Issues , I ran into the following (and quite scary) thread : http://lists.openmoko.org/pipermail/hardware/2008-April/55.html So I was wondering, maybe the poor GPS

Re: Test points - a possible future direction

2008-07-24 Thread Joerg Reisenweber
Am Do 24. Juli 2008 schrieb Thomas Seiler: Hi, I accidentally hit reply instead of reply-all, my apologies for making this thread rather hard to read... Werner Almesberner wrote: Thomas Seiler wrote: [...] That might be an option for GTA03, where we'll probably still have only Full

Re: induction charging

2008-07-31 Thread Joerg Reisenweber
Am Fr 1. August 2008 schrieb Brad Midgley: Hey I noticed there was a homebrew/make/etc induction generator out there but it looks like a bit of an ugly hack. Is anyone else interested in opening up something like a reelight* to see if it could be hacked to provide power to a neo working

GSM-noise buzz issue

2008-08-05 Thread Joerg Reisenweber
Moving this thread to [hardware] from [community], as it's a hw-related technical problem. Eventually I will merge the similar thread from [support]-ml All further discussion, status-reports etc will be supported by me solely here in [hw]-ml. Please don't continue the threads in the other both

Re: GSM-noise buzz issue

2008-08-11 Thread Joerg Reisenweber
To keep updated all those who are interested in details: Seems we finally found enough of the working mechanism of GSM-interference, to promise we will be able to stop it. More details: JK4401 hs-receptacle isn't shielded and obviously the contact springs catch RF and feed it to the audio-path.

Re: GSM-noise buzz issue

2008-08-12 Thread Joerg Reisenweber
Today's good results: grounding of pin6 at JK4401 seems to stop noise (as long as no hs is plugged in). This is an easy one, which very buzz-annoyed brave soldering-veterans might try *on their own risk*. Side-effects: still unknown. cheers jOERG signature.asc Description: This is a

Re: Wifi

2008-08-19 Thread Joerg Reisenweber
Am Di 19. August 2008 schrieb Mike (mwester): I am led to understand that the GTA02 offers a GPIO that permits the kernel to forcibly remove power from the GSM, but nobody has confirmed that this action is controllable from userspace, or if the kernel actually performs this power removal upon

Re: Wifi / off-state leakage

2008-08-20 Thread Joerg Reisenweber
Am Mi 20. August 2008 schrieb Werner Almesberger: I don't have any specific problem I suspect to happen. I just wanted to point out the general problem (which seems particularly bad with those Samsung SoCs), which seems to be important since Joerg recently suggested to run all sorts of GPIOs

Re: Wifi / off-state leakage

2008-08-20 Thread Joerg Reisenweber
If I'm in a situation where I absolutely want to make sure we don't emit any power, I'd remove the battery anyway. OK, there are people who feel uncomfortable with a battery in *any* cellphone nearby, when they have some confidential talk ;-) OTOH, I'm more concerned about possible

Re: Wifi / off-state leakage

2008-08-21 Thread Joerg Reisenweber
Am Mi 20. August 2008 schrieb Werner Almesberger: Joerg Reisenweber wrote: Fine! But where in this description is the point about ME suggesting sth like routing (new) GPIO to all sorts of peripherals??? Ah, this was the mail that scared me: https://lists.internal.openmoko.org/pipermail

Re: Wifi / off-state leakage

2008-08-21 Thread Joerg Reisenweber
Am Do 21. August 2008 schrieb Joerg Reisenweber: This rail is 0V as long as there's no USB-supply voltage. We are fine for all cases except shutdown when on charger. Actually the problem case is shutdown, hooked to charger, AND overvoltage detected. Then we still got 100kR on this line /j

Re: Wifi / let's have RF stuff powered with high current source all the time because...

2008-08-25 Thread Joerg Reisenweber
Am Mo 25. August 2008 schrieb Werner Almesberger: Andy Green wrote: It can be prototyped and the final PA spectral performance compared to piece of wire, so this is something we can know rather than scare ourselves about. You mean in GTA02 or in GTA03 ? For GTA03, that's definitely

Re: Wifi / let's have RF stuff powered with high current source all the time because...

2008-08-25 Thread Joerg Reisenweber
Am Mo 25. August 2008 schrieb Andy Green: Point taken about the GTA03+ module though -- it should take care of power switching inside the module boundary in a reliable way or the module is broken, so we presumably should be able to just use the module boundary power arrangements. But still I

Re: Wifi / let's have RF stuff powered with high current source all the time because...

2008-08-25 Thread Joerg Reisenweber
Am Mo 25. August 2008 schrieb Andy Green: Somebody in the thread at some point said: | Am Mo 25. August 2008 schrieb Andy Green: | Point taken about the GTA03+ module though -- it should take care of | power switching inside the module boundary in a reliable way or the | module is broken,

Re: GSM-noise buzz issue

2008-08-26 Thread Joerg Reisenweber
We found it's pin4 of JK4401 and only this pin that causes GSM-EMI-noise issue. We placed a ferrite bead to this pin, and it stops noise. Alas this isn't a viable rework, as it is extremely fragile and doesn't fit into case. See

Re: Wifi / let's have RF stuff powered with high current source all the time because...

2008-08-26 Thread Joerg Reisenweber
Am Di 26. August 2008 schrieb Uwe Klein: Hi, in this context: is there any (hardware) watchdog stuff that limits transmit time and similar things? There's a watchdog in CPU, but it's unused by all of the recent sw-stacks AFAIK. /jOERG signature.asc Description: This is a digitally

Re: UCLK

2008-08-28 Thread Joerg Reisenweber
Am Do 28. August 2008 schrieb Cesar Eduardo Barros: Andy Green escreveu: -BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Somebody in the thread at some point said: | In a message from Ben Dooks on linux-arm-kernel about cpufreq, he said: | |- My patches have code to use hardware

Re: UCLK

2008-08-28 Thread Joerg Reisenweber
Am Do 28. August 2008 schrieb Werner Almesberger: Joerg Reisenweber wrote: Should we try to set up a ECN demanding future (GTA02) devices to have this? Andy? Werner? I consider engineering risk very low, as we always may fall back to current scheme. Sounds good and safe to me as well

Re: USB-OVP

2008-08-28 Thread Joerg Reisenweber
Am Do 28. August 2008 schrieb Andy Green: Somebody in the thread at some point said: | Charger Overshoot Voltage VCHGR_OVRSHT 6.0 V max. | - | | Though we couldn't even attach a USB-charger compliant to this spec, as it has | to be equipped with micro-USB plug, we should expect to

Re: UCLK

2008-08-28 Thread Joerg Reisenweber
Am Do 28. August 2008 schrieb Werner Almesberger: Joerg Reisenweber wrote: Ah, and btw: does anybody have a decent set of bookmarks/pointers/quotes to S3C2442 datasheet sections needed to facilitate my duty to validate this ECN? I think we need a more specific question :-) I.e

Re: USB-OVP

2008-08-29 Thread Joerg Reisenweber
Am Fr 29. August 2008 schrieb Andy Green: Somebody in the thread at some point said: | Joerg Reisenweber wrote: | Do we really need more reasons to care about that issue? | | How about Postel's law ? | | http://en.wikipedia.org/wiki/Robustness_Principle | | Sounds like a good enough rule

Re: No blinken lights...

2008-08-30 Thread Joerg Reisenweber
Am Sa 30. August 2008 schrieb Werner Almesberger: Monkey + keyboard = For GTA02, use a really slow PWM ? Duh. Kinda hard with the clock stopped ... Darn, no way to keep this clock alive??? I always thought this would be method of choice to flash or dim LED during suspend :-/ PCF50633 has

Re: GTA02 C4110/1 replacement?

2008-09-12 Thread Joerg Reisenweber
Am Di 9. September 2008 schrieb Al Johnson: On Monday 08 September 2008, you wrote: On Mon, 8 Sep 2008, Al Johnson wrote: Some time ago Joerg (IIRC) suggested it might be possible for the brave/foolhardy to replace the undersized caps in the headset output with something more

Re: GSM-noise buzz issue

2008-09-12 Thread Joerg Reisenweber
Am Do 11. September 2008 schrieb Torsten Sievers: Hi Joerg, good work so far. do you have any update on this? Well, recent reports from actual lab in Taipei are fuzzy and sparse (I unfortunately can't reproduce the buzz-issue here at my european lab), but it sounds like we can confirm it's

Re: GSM-noise buzz issue

2008-09-16 Thread Joerg Reisenweber
Actually Andy explained the pin3/pin5 issue. From what I understand, with removed receptacle and 3-5 short, your buzz actually vanished, no? That's good news. For the suggested rework, that's exactly why I bought a Dremel couple of days ago ;-) You described my plans to the smallest detail.

Re: GSM-noise buzz issue

2008-09-17 Thread Joerg Reisenweber
Am Mi 17. September 2008 schrieb Andy Green: Somebody in the thread at some point said: | Actually Andy explained the pin3/pin5 issue. | From what I understand, with removed receptacle and 3-5 short, your buzz | actually vanished, no? That's good news. | | For the suggested rework, that's

Re: GSM-noise buzz issue

2008-09-17 Thread Joerg Reisenweber
Am Mi 17. September 2008 schrieb Andy Green: Which pins on WM8753 are affected by what in order to make this buzz? Wolfson micro headquarters is in Edinburgh AFAIK. Probably you'll find someone there who might be interested in your findings on that. Please don't forget to specify things like

Re: GSM-noise buzz issue / ways forward

2008-09-22 Thread Joerg Reisenweber
Am Mo 22. September 2008 schrieb Andy Green: Somebody in the thread at some point said: | and *then* continue to look for good fixes for already existing ones, this | request gets torn down by an immediate vivid discussion about contamination | pathes etc., leaving impression to TPE EE we

Re: GSM-noise buzz issue

2008-09-29 Thread Joerg Reisenweber
Am Mo 29. September 2008 schrieb Andy Green: Somebody in the thread at some point said: | Got around to try it just today. | The problem for me with testing is that I (too) have a pretty good | signal where I life (Actually orignating about 300m away ;) ), so that | if there is buzz it is

Re: GSM-noise buzz issue

2008-09-30 Thread Joerg Reisenweber
Am So 21. September 2008 schrieb Uwe Klein: On 9/21/08, Werner Almesberger [EMAIL PROTECTED] wrote: Andy Green wrote: One interesting thing would be stick a tracking generator on the GSM antenna, put it near the headphone socket in a repeatable way, stick spectrum analyzer probe on

Re: Neo1973 WM8753/Alsa Configuration

2008-10-01 Thread Joerg Reisenweber
Am Mi 1. Oktober 2008 schrieb Mark Brown: The controls for the WM8753 itself are all defined in sound/soc/codecs/wm8753.c in the kernel source - they're all done with macros which map them into register fields in the codec. I tried to find name of a registers this way, but this code is so

Re: Neo1973 WM8753/Alsa Configuration

2008-10-03 Thread Joerg Reisenweber
Am Mi 1. Oktober 2008 schrieb Mark Brown: On Wed, Oct 01, 2008 at 05:13:37PM +0200, Joerg Reisenweber wrote: I tried to find name of a registers this way, but this code is so nested and cryptic and poorly commented, I really didn't success to understand the logic behind the data

Re: Neo1973 WM8753/Alsa Configuration

2008-10-03 Thread Joerg Reisenweber
Am Sa 4. Oktober 2008 schrieb Joerg Reisenweber: Am Mi 1. Oktober 2008 schrieb Mark Brown: On Wed, Oct 01, 2008 at 05:13:37PM +0200, Joerg Reisenweber wrote: I tried to find name of a registers this way, but this code is so nested and cryptic and poorly commented, I really didn't

Re: GTA03 revision available

2008-10-03 Thread Joerg Reisenweber
Am Sa 4. Oktober 2008 schrieb Werner Almesberger: [EMAIL PROTECTED] wrote: From what I know, I would expect it to be available in the fall of 2009. But this is only my guess. 5Q2009 is actually when we plan to release the Neo Lockdown, running Proprietarix licensed from SCO(tm),

Re: GTA03 revision available

2008-10-03 Thread Joerg Reisenweber
Am Sa 4. Oktober 2008 schrieb Mike (mwester): Joerg Reisenweber wrote: Am Sa 4. Oktober 2008 schrieb Werner Almesberger: [EMAIL PROTECTED] wrote: From what I know, I would expect it to be available in the fall of 2009. But this is only my guess. 5Q2009 is actually when we plan

Re: WLAN signal strength - good or bad ?

2008-10-04 Thread Joerg Reisenweber
WLAN is RF and thus again voodoo. I only know I have similar puzzling results whenever I compare any 2 randomly chosen WLAN-Xceivers. 10cm of movement may change situation totally, and the sending out of beacons isn't very comparable between different APs. To make things worse, not only the

Re: GSM-noise buzz issue- Stupid Question... Are Bluetooth headsets affected?

2008-10-12 Thread Joerg Reisenweber
Am Mo 13. Oktober 2008 schrieb [EMAIL PROTECTED]: Sorry about the dumb question. I was just wondering if bluetooth headsets would be affected by this buzz problem. No. Will work without buzz /jOERG signature.asc Description: This is a digitally signed message part.

Re: GTA04 SoC/CPU and LCD size

2008-10-30 Thread Joerg Reisenweber
+1 for some sort of transflexive screen that displays (a maybe somewhat reduced set of) information without backlit. /j Am Do 30. Oktober 2008 schrieb Alastair Johnson: Uwe Klein wrote: Now for something completely different: is a OLPC / Pixel Qi type reflective LCD an option?

Re: GSM-noise buzz issue

2008-10-30 Thread Joerg Reisenweber
Am Mi 29. Oktober 2008 schrieb Angus Ainslie: On Wed, Oct 29, 2008 at 12:08 PM, Ole Kliemann [EMAIL PROTECTED] wrote: Hi Joerg and others, I haven't followed the whole thread as I only understand 1%. So just one quick and dirty question: I have the two years EU warranty and am

Re: GSM-noise buzz issue

2008-10-30 Thread Joerg Reisenweber
Am Do 30. Oktober 2008 schrieb Ole Kliemann: Thanks for the answer! The point is, i certainly won't do the fix myself. ;) I will send my device to my distributor on warranty. On Thu, Oct 30, 2008 at 12:11:47PM +0200, Joerg Reisenweber wrote: Seems you always could upgrade to the 'botch

Re: [sound]: capacitor that act like a high-pass filter and so removes the bass on the headphones jack

2008-11-15 Thread Joerg Reisenweber
Am Sa 15. November 2008 schrieb [EMAIL PROTECTED]: Hello, I've the same issue as described here: http://wiki.openmoko.org/wiki/Neo_FreeRunner_Hardware_Issues#Known.2FAccepted_Issues That is to say the Poor low-frequency audio response with low-impedance headphones problem... On IRC I was

Re: [sound]: capacitor that act like a high-pass filter and so removes the bass on the headphones jack

2008-11-15 Thread Joerg Reisenweber
Yes, sounds like a good idea (input impedance should be (much) [GT] 1000Ohm though, not 1k) This adapter also could implement some hw-equalization for the highpass-filter created by the 1uF*(1/(1/1k + 1/(33R + adapter-impedance)). (where, in sequence, values are from: C4111:1u, R4117:1k,

Re: [sound]: capacitor that act like a high-pass filter and so removes the bass on the headphones jack

2008-11-28 Thread Joerg Reisenweber
Am Sa 29. November 2008 schrieb Andy Green: Somebody in the thread at some point said: | I think I understand. I built one 10 F capacitor into the adapter (at the | mass), so the problem with the headphones should be fixed. I also measured a | 1,59V current at the capacitor when plugged in

Re: Bug #1024 related power measurement of the GSM modem

2008-12-02 Thread Joerg Reisenweber
Am Di 2. Dezember 2008 schrieb Dieter Spaar: Hello Stefan, Stefan Schmidt wrote: To follow up on the #1024 traces. I fear you are still not able to reproduce the re-camping? No, I cannot reproduce it here. It seems that it requires a special GSM net situation. From the PCO2

Re: Fwd: No more optimization team

2008-12-15 Thread Joerg Reisenweber
100% ACK Am Di 16. Dezember 2008 schrieb Werner Almesberger: Joerg Reisenweber wrote: Are you living in an area where many people use their cellphone, but only few BS around? We have some cloudy theory this might be a trigger for #1024. Perhaps it would be good to collect some more

GSM #1024 issue

2008-12-16 Thread Joerg Reisenweber
Mickey, could you connect an external GSM-antenna and check if there's any difference? Preferably connect the external antenna while actually encountering a #1024, and see whether it stops, or otherwise changes characteristics. many thanks cheers jOERG signature.asc Description: This is a

Re: GSM #1024 issue

2008-12-16 Thread Joerg Reisenweber
Am Mi 17. Dezember 2008 schrieb Michael 'Mickey' Lauer: Am Tuesday 16 December 2008 20:33:42 schrieb Joerg Reisenweber: could you connect an external GSM-antenna and check if there's any difference? Preferably connect the external antenna while actually encountering a #1024, and see

Re: MICBIAS buzz injection

2009-01-14 Thread Joerg Reisenweber
We have an issue regarding HW-driven max output level of the A5..A7-mic vs max input sensitivity of Wolfson 8753. Anyway this is about some 20dB missmatch, and regarding the amount of noise/distortion the mic introduces by itself this won't spoil our overall signal quality balance. (you might

Re: hardware development tool of freerunner (GTA2)

2009-02-12 Thread Joerg Reisenweber
Am Do 12. Februar 2009 schrieb aawnsd: Hi, anyone who know which tool was used (CAD/CAE, schematic/pcb) do design GTA2 and product the pdf's? Who to ask? aawnsd Schematics and layout PCB are done using Mentorgraphics LOGIC/PADS /jOERG signature.asc Description: This is a digitally

Re: GTA03 and E-Ink Interface

2009-02-14 Thread Joerg Reisenweber
Am Sa 14. Februar 2009 schrieb Jaya Kumar: ni hao and hello OpenMoko friends, Ok, to explain my interest quickly: what I hope to do is to take an openmoko and add an E-Ink display, possibly replacing the LCD if necessary. It is too early for this to be useful to people so I do not want to

Re: GTA03 and E-Ink Interface

2009-02-15 Thread Joerg Reisenweber
Am Mo 16. Februar 2009 schrieb Jaya Kumar: On Mon, Feb 16, 2009 at 8:02 AM, Andy Green a...@openmoko.com wrote: -BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Access to Glamo mapped region is much slower than 50ns. But, it's 16 bits wide. If you were able to use all the 16 bit width,

Re: Power leakage: save 40mW by turning GSM on

2009-02-22 Thread Joerg Reisenweber
Am So 22. Februar 2009 schrieb Michael 'Mickey' Lauer: Am Sonntag, den 22.02.2009, 19:44 +0100 schrieb Rask Ingemann Lambertsen: But in the end, I realized that the modem powers up with deep sleep enabled, so after a few seconds of AT command inactivity, Right, the first thing you

Re: Bluetooth headset routed over USB on Freerunner: why we need it and what problems i faced

2009-02-23 Thread Joerg Reisenweber
Am Di 24. Februar 2009 schrieb Werner Almesberger: Paul Fertser wrote: Following information is based on AN107 [1] (CSR, 2002, describes SCO configuration for BC-01b and BC-02-External) and experience. Please let me reveal myself as the total BT ignoramus that I am: Is the bottom line

Re: Bluetooth headset routed over USB on Freerunner: why we need it and what problems i faced

2009-02-23 Thread Joerg Reisenweber
Am Di 24. Februar 2009 schrieb Werner Almesberger: Joerg Reisenweber wrote: Bet on that? :D If a tree falls in a forest and no one is around to hear it, does it make a sound ? ;-) Good point. Anyway sometimes asking might reveal suprising information. Not first time we seen important

Re: MOKO11b1

2009-02-24 Thread Joerg Reisenweber
Am Di 24. Februar 2009 schrieb Werner Almesberger: Dieter Spaar wrote: The release version without the b1 is in the SVN at https://svn.internal.openmoko.org/trunk/calypso/firmware/moko11/ Thanks ! I have kept the long filename in the SVN, feel free to remove or rename everything

Re: MOKO11b1

2009-02-24 Thread Joerg Reisenweber
Am Mi 25. Februar 2009 schrieb Joerg Reisenweber: Am Di 24. Februar 2009 schrieb Werner Almesberger: Dieter Spaar wrote: The release version without the b1 is in the SVN at https://svn.internal.openmoko.org/trunk/calypso/firmware/moko11/ Thanks ! I have kept the long

Re: Speaker Placement

2009-02-27 Thread Joerg Reisenweber
Am Di 26. August 2008 schrieb Flemming Richter Mikkelsen: On 2008-08-19, Esben Stien b...@esben-stien.name wrote: It would be nicer if the speakers were placed on top of the device instead of at the bottom where they are now. I have to hold the device kind of awkward to hear the sound

Re: GSM Buzz fix also applicable to GTA01?

2009-03-04 Thread Joerg Reisenweber
Am Mi 4. März 2009 schrieb Tilman Baumann: Joerg Reisenweber wrote: So my question is basically if the GTA02 buzz fix works for me and is it reasonable to think that I need it? Maybe it can really be fixed with a better alsa state file. I'll answer more detailed questions on HW-ML

Re: USB Mini B Connector

2009-03-11 Thread Joerg Reisenweber
Am Di 10. März 2009 schrieb Sven Klomp: Hi, where I can get a USB cable with a USB Mini B connector on one side with all 5 pins connected? https://www.argentdata.com/catalog/product_info.php?products_id=111 Many Thanks to Uwe Klein! /j signature.asc Description: This is a digitally

Re: USB Mini B Connector

2009-03-11 Thread Joerg Reisenweber
Am Di 10. März 2009 schrieb Sven Klomp: Hi, where I can get a USB cable with a USB Mini B connector on one side with all 5 pins connected? I need access to the ID pin to add the resistor. A cable called USB Mini A 5pol - USB Mini B 5pol has only four wires. ID is connected to ground as

Re: USB Mini B Connector

2009-03-11 Thread Joerg Reisenweber
Am Mi 11. März 2009 schrieb Sven Klomp: And the expensive solution: http://www.partsdata.de/USB_Mini-B-Verlaengerung_Kabel_1m_CU-XB05-10.html Anyway not THAT more expensive, so we won't do any order in USA for Germany. This one is just fine. /j signature.asc Description: This is a digitally

Re: Bug #1024 (oscillating re-camping), the story goes on...

2009-03-30 Thread Joerg Reisenweber
I suggest to stop the other 2 32kHz oscillators on mainboard to rule out mechanical (as well as electrical / EM) interference between them and the calypso oscillator. Can be done by simply shorting/grounding the crystals, or maybe even with config-register settings (not yet checked). Ping me on

Re: Bug #1024 (oscillating re-camping), the story goes on...

2009-03-30 Thread Joerg Reisenweber
Am Mo 30. März 2009 schrieb Werner Almesberger: Dieter Spaar wrote: Here in my lab environment I can simulate the serving cell that is used in the trace. However with my few GTA02 devices I don't observe bug #1024 and even in Deep Sleep mode the TOA values are stable. By the way,

Re: Bug #1024 (oscillating re-camping), the story goes on...

2009-03-30 Thread Joerg Reisenweber
Am Mo 30. März 2009 schrieb Dieter Spaar: Hello Werner, Werner Almesberger wrote: By the way, Joerg has proposed another interesting approach: if the oscillator's drive strength is insufficient, we should be able to make things worse by reducing it, which you mentioned could be done

Re: Bug #1024 (oscillating re-camping), the story goes on...

2009-03-30 Thread Joerg Reisenweber
Am Mo 30. März 2009 schrieb Dieter Spaar: Hello Joerg, Joerg Reisenweber wrote: Dieter, maybe we could have a debug-version of moko11 to implement a service AT command to tweak those config registers. This way we could ask users who actually can reproduce #1024 to check if there's

Re: Bug #1024 (oscillating re-camping), the story goes on...

2009-03-31 Thread Joerg Reisenweber
Am Di 31. März 2009 schrieb Timo Juhani Lindfors: Also if anyone observing #1024 wants to help and make some traces, please let us know. Tracing is not that complicated, all what is needed is a cable to connect the optional debug UART from the headset to a terminal and record the data.

Re: my buzz fix method

2009-04-06 Thread Joerg Reisenweber
Am So 5. April 2009 schrieb Rask Ingemann Lambertsen: On Fri, Mar 27, 2009 at 03:34:00AM +0100, Joerg Reisenweber wrote: Regarding your low volume: did you check R4303? (It's the one below the two NC pads and right side to C4303, the one you borked and replaced. It's clearly

Re: Bug #1024 (oscillating re-camping), the story goes on...

2009-04-06 Thread Joerg Reisenweber
Am Mo 6. April 2009 schrieb Dieter Spaar: Hello Daniel, Daniel Willmann wrote: I know someone with a frequency generator here. Would it make sense to see what happens when we detune the frequency? Is it possible? (It's a crystal rather than an oscillator, right? X1001?) Good

Re: my buzz fix method

2009-04-06 Thread Joerg Reisenweber
Am Di 7. April 2009 schrieb Rask Ingemann Lambertsen: On Mon, Apr 06, 2009 at 12:59:21PM +0100, Joerg Reisenweber wrote: Am So 5. April 2009 schrieb Rask Ingemann Lambertsen: Joerg, could you clarify the significance of R4303 a bit? For example, how would I tell if it has 2.2

Re: Bug #1024 (oscillating re-camping), the latest news.

2009-04-29 Thread Joerg Reisenweber
Am Mi 29. April 2009 schrieb Werner Almesberger: Dieter Spaar wrote: Finally, after a while I found out that the problem goes away if I warm up the Calypso chip by a few degrees. re-reflow the chip? Or maybe consult your dentist? ;D /j signature.asc Description: This is a digitally

Re: Bug #1024 (oscillating re-camping), the latest news.

2009-04-29 Thread Joerg Reisenweber
Am Do 30. April 2009 schrieb Michael 'Mickey' Lauer: Thanks for the update, Dieter. That might explain why I'm suffering so bad from this bug, since my office is located in the souterrain and it's usually pretty cold here. :M: Another fridge-bug after WSOD :-/ strange, usually it's the

Re: Wrecked display and the USB host

2009-05-02 Thread Joerg Reisenweber
Am Sa 2. Mai 2009 schrieb Thomas Sanladerer: Chris Syntichakis schrieb: So, that means that we can take off the BT module and connect (internal) a 3G usb dongle? I guess that should work as well. Two things you need to keep in mind though: - The display is heavily taped to the pcb. It's

Re: Bug #1024 (oscillating re-camping), the latest news.

2009-05-03 Thread Joerg Reisenweber
Am So 3. Mai 2009 schrieb Dieter Spaar: Instead of messing around with all of this and making things more complicated, I thing the current solution to detect re-camping and enable AT%SLEEP=2 is the better approach (maybe adjust the algorithm slightly). Regarding all the arguments I deleted

Re: Power Button/USB Problems

2009-05-04 Thread Joerg Reisenweber
Am Mo 4. Mai 2009 schrieb Daemon D: Since I've gotten my Neo Freerunner about a month ago it has sporadically powered off when plugging in the USB cable. Other times I have just moved the Freerunner a little bit in my hand and it reboots. The final weirdness was that it was sitting by

Re: Bug #1024 (oscillating re-camping), a possible solution.

2009-05-29 Thread Joerg Reisenweber
Just to mention it once again, and to stop a possible stampede: AT%sleep=2 (sw-fix[1]) has fixed recamping reliably for 100% of affected devices. Not all devices suffer from #1024, actually it seems it's only a small percentage. FSO is capable of switching to AT%sleep=2 even automatically[1].

Re: schematics in PDF form?

2009-06-06 Thread Joerg Reisenweber
Am Sa 6. Juni 2009 schrieb Wolfgang Spraul: Joerg, I think this thread should move to [GTA03] (wonder why it's called that way) How about the other way round? Looks like gta02-core is the way forward (and as you said the [gta03] list name is even wrong). I propose to close the

Re: aux button broke off at the soldering points

2009-06-11 Thread Joerg Reisenweber
Am Do 11. Juni 2009 schrieb Christian Panse: hi, after three weeks of using my openmoko the aux button broke off at the soldering points. a picture of the tragedy can be seen here: http://christian.panse.googlepages.com/openmokoAux.jpg there apparently seems to be a weak point. if

US triband vs EU triband

2009-06-17 Thread Joerg Reisenweber
I just confirmed basic functionality of 850/1800/1900 devices (US Freerunner) for 900MHz networks. RF sensitivity is poor, but sufficient for areas with good coverage. For Germany a US device (850/1800/1900) worked flawlessly with German operator T-Kom (in urban area), and rather poor with

AT%N

2009-06-17 Thread Joerg Reisenweber
On Fri, Feb 13, 2009 at 08:47:06AM +0100, Joerg Reisenweber wrote: Am Fr 13. Februar 2009 schrieb John Lee: fso now use AT%N0187 by default. that means Long Echo Cancellation (max) plus Noise Reduction (max) qtopia in 2008.12 uses AT%N028B // Long Echo Cancellation: active

GTA02 BQ27000 CoulombCounter bat management IC, readout script

2009-07-10 Thread Joerg Reisenweber
to read out all registers of Coulomb counter in GTA02 bat you need to install bash for this to work /jOERG bq27k-detail Description: application/shellscript signature.asc Description: This is a digitally signed message part. ___ hardware mailing

Re: GSENSOR_3V3 voltage drop

2009-08-23 Thread Joerg Reisenweber
[Álvaro Lopes So 23. August 2009]: Christoph Mair wrote: Hello, I have some questions regarding the GSENSOR_3V3 line: Under normal conditions I measured 2.8V. We need to check what's the correct setting for LDO1 voltage, in PMU. 2.8 sounds fishy. In suspend, the voltage drops to

Re: Part No Of FPC Connector on debugboard

2009-08-25 Thread Joerg Reisenweber
[Liviu Dudau Mo 24. August 2009]: On Mon, Aug 24, 2009 at 04:08:20PM +0530, Abhishek Bajpai wrote: I am in need of an FPC connector used in debug board. Can any one help me to figure out what is the part no of that connector and from where do i get it. -- Even The word

Re: Power Button

2009-08-28 Thread Joerg Reisenweber
[Hypnotize Fr 28. August 2009]: Hi, I have gotten my PWR button destroyed on the FreeRunner and is wondering what the name of that button is and where I can buy a new one ? Hope any one can answer me on this!=) -Morten POWER ON KEY SW1704 LocationDescription

Re: searchable component placement PDF now available

2009-09-04 Thread Joerg Reisenweber
[Timo Juhani Lindfors Fr 4. September 2009]: Fox Mulder quakem...@gmx.net writes: I only found in Component-placement_Freerunner-GTA02-MB-A6.page1.pdf the resistor R1502 in the upper left is only an image and no searchable text. Thanks, updated version is now at

Re: Extra component on GTA02

2009-09-06 Thread Joerg Reisenweber
[Álvaro Lopes So 6. September 2009]: Hi, My Gta02 seems to have an extra component on board [1] [2]. Any ideas how it got there ? I'm worried that resistor is missing somewhere else... Álvaro [1] http://alvarolopes.com/resources/extra_component2.jpg [2]

power consumption depending on screen content

2009-10-09 Thread Joerg Reisenweber
A completely white screen with ~40% backlight consumes same amount of power as a completely black screen (-content) with backlight dim (=off) (= a black screen eats as much power as a backlight set to 40%) (DUT: FR A7 SHR-U0808) cheers jOERG signature.asc Description: This is a digitally

Re: Backlight Power Measurement

2009-10-15 Thread Joerg Reisenweber
[Werner Almesberger Do 15. Oktober 2009]: Aaron Carroll wrote: LED+ to GND, because I want to include the power lost in R1763. Okay, this would explain about 10% of the loss. Nope it won't, as the converter is powering the LED plus R. So the loss on R isn't of any relevance to estimate

Re: power consumption depending on screen content

2009-10-28 Thread Joerg Reisenweber
[Flemming Richter Mikkelsen Mi 28. Oktober 2009]: On 2009-10-28, Flemming Richter Mikkelsen quat...@gmail.com wrote: --snip-- What happens if you do the same test with the screens flex cable disconnected? Never mind... I just read the other thread:) which other thread? /j

Re: can openmoko be in suspend and keep the backlight on?

2009-11-25 Thread Joerg Reisenweber
[Nils Faerber Mi 25. November 2009]: Lars-Peter Clausen schrieb: Timo Juhani Lindfors wrote: Hi, just out of curiosity, is it possible to suspend the main cpu but still keep the display backlight on? (I have no practical use for this, it would be useful only if we could keep screen

Re: can openmoko be in suspend and keep the backlight on?

2009-11-25 Thread Joerg Reisenweber
[Joerg Reisenweber Do 26. November 2009]: Very clever. But this requires heavy CPU support which most smartphone CPUs that run Linux lack, like S3C we are using in the Freerunner or the OMAP3 that is now used in the Nokia N900. OMAP3 has same cute SmartReflex™ power management and zero