1. Sharp Zaurus JTAG cable

    From time to time people are asking about schematics of JTAG cable for Zaurus machines. Such cable can be used to restore flash memory content after destroying it.

    For all models newer then collie (SL-5000/5500) there is a hope still as they are much harder to brick. User can enter “Diagnostics menu” via magic keycombo (which usually is holding “D” and “P” during Power key on boot) and then use “NAND Restore” function (NAND Backups are available in few places — TRIsoft is one of them).

    Anyway below you should see schematics of such cable — taken from collie service manual. On Zaurus side you have to use Hoshiden TCX3106 connector (docs were available on Sharp Deutschland website) and is available for few USD in Five Star Associates. How to use cable? Do not ask me — I never had to use JTAG.

    Sharp Zaurus JTAG cable schematics
    Sharp Zaurus JTAG cable schematics
    Written by Marcin Juszkiewicz on
  2. Job offer from Google

    I just digged one interesting email from my SPAM folder. It is job offer from Google.com Engineering Group. Two positions to choose:

    • Unix System & Applications Administrator, Google.com
    • Senior Software Engineer, Google.com

    Need to think about it.

    Written by Marcin Juszkiewicz on
  3. Private support emails

    Over week ago Jeff Garzik wrote on LKML about private mails with support requests. Yesterday RMK started similiar thread on LAKML. After reading whole discussion I decided to write what do I think about it as I am also getting such requests in private.

    From time to time someone asks me for help (nevermind which way: email, irc, jabber, forum message) even in subjects which were very often discussed or are in OpenZaurus FAQ. I have many things to do and answering to all such requests are very low priority — sometimes I answer after 2 weeks (if at all). Sometimes I do not know answer and redirect author to forum or mailing list.

    On the other hand there are requests are about adding software into OpenZaurus feeds or providing support for exotic hardware. If software == unmaintained, very low quality applications for Qtopia enviroments (I wrote about them already) then I refuse to touch them at all as this takes too much time to get good results (tried once with Mileage). Another thing is hardware support — it is hard to support something which I lack (did it once with CF-XGA card) but even if I have it support can be hard because lack of time (like it was with Ir keyboard).

    From time to time I am getting offer or paying development but thats other story :D

    Why Ask Questions in Public? is also worth reading.

    Written by Marcin Juszkiewicz on
  4. Back to work

    Vacations was nice but ended… Now it is time to be back to work, websites, Zaurus stuff etc… Time to follow OpenEmbedded migration to newer Monotone version (partially did it already on some of machines), look at OpenZaurus users posts & requests.

    I will try to write something how was on vacations later — we did over 300 photos which need selection. Many of them are wallpapers which I will publish somewhere.

    Written by Marcin Juszkiewicz on
  5. Vacations

    It is good to have vacations…

    • beach
    • bicycle
    • meetings with ‘long time no see’ friends
    • good regional food

    and NO Zaurus stuff, NO e-mails, NO phones from work — quiet and cool ;D

    Written by Marcin Juszkiewicz on
  6. Instant messaging^W^WGaduGadu crap

    Many people use IM (Instant Messaging) each day. There are many protocols available: AIM, GaduGadu, GroupWise, ICQ, IRC, Jabber, Meanwhile, MSN, WinPopup, Yahoo and probably some other…

    I use IRC since my usage of Internet began, then ICQ started to be popular (and my Amiga was connected to academic network via Ethernet), about year later people started switching to GaduGadu and some time later I started using Jabber. Today I use IRC each day (you can catch me on freenode and IRCnet), two Jabber accounts, one ICQ and two GaduGadu (one for private contacts, one for coworkers). My favorite method of IM contact is Jabber, then ICQ (I do not count IRC here as it is not so one-to-one chat). I dislike GaduGadu for its lack of normal features, ignoring privacy and such stuff.

    For example — today I added contact of coworker to be able to send some infos to her instead of writing it in email or on sheet of paper. As usual she had to ask someone which number she has (GG use numbers like ICQ does — not names like Jabber or IRC). So I added her just to notice that she has a status ‘not available’. In this shit called GG it does not have to mean that you are not available — it can be that user defined status as ‘hidden’. In ICQ or Jabber this stuff is handled by authorization — if I want someone to be able to see my status I can authorize contact. When I told her that I do not IM with ‘not available’ people she replied ‘Why? I prefer this way and will not change it — you can send me emails.’

    Other GaguGagu crap is called ‘conferencies’ which are just few people chat not chatroom/channels. Anyone can start conference with other people — but all people got request ‘do you want to enter conference with NUM1, NUM2, NUM3, NUM4. NUM5’ — lack of any method to block of showing own number to people which I would like to avoid (if NUM3 does not want NUM5 knowing his number he cannot hide after such conference request).

    Written by Marcin Juszkiewicz on
  7. Tosa and 2.6 kernel

    Few days ago I flashed 2.6.17 on tosa (with unofficial OpenZaurus 3.5.4.1 OPIE image) and I have to say that it was good choice. After fixing keymap (pushed into OpenEmbedded) and adding one script into apm (not yet pushed) I have machine which suspend/resume very fast, has working WiFi after each resume and behave better then it was with 2.4 (see my previous post).

    But it is not yet ready for end users:

    • sometimes battery info report 0% — suspend/resume help
    • USB Host module lack Power Managment — need to be removed/inserted on suspend/resume
    • touchscreen is weird — horizontal lines got ‘pings’

    Tomorrow I will get USB keyboard from friend so will test how it is — usage of external (wired) keyboard with PDA

    Written by Marcin Juszkiewicz on
  8. We made it!

    OpenZaurus 3.5.4.1 is released!!!

    It took 4 months instead of few weeks, I lost motivation few times but finally it is done. I can not count how many times I had to build images during last week just to notice that something is wrong. Building world (all packages) killed dual Opteron machine once, took few days and I had to wrote many patches to get stuff built.

    But it is worth it — users got nice system to use, based on recent kernel (2.6.16 — 2.6.17 was not yet tested) instead of shitty 2.4 provided by Sharp (let name of that company be forgotten forever).

    What next? Vacations, then tosa fighting and maybe another release in September.. who knows..

    Written by Marcin Juszkiewicz on
Page 94 / 105