OESF Portables Forum
Model Specific Forums => Sharp Zaurus => Zaurus - pdaXrom => Topic started by: Xromer on April 20, 2006, 06:15:27 am
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I saw this very interesting hardware. It' s based on the PXA 255 400Mhz and has a lot of features.
It has a 800X480 Display 5" width and WCDMA support.
Now i'm wondering if there' s a problability to have it working on PdaXrom.
As i see it should be only a driver issue because tha CPU it' s an ARM one.
But display it' s more readable and it has a bigger keyboard than Zauri and the WCDMA integration too.
It doesn' t cost really much . It should be an interesting Notebook subtitution.:-)
Check it out! (http://conics.net/shp/pda/sigmarion3/)
Let me know what you think.
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the first problem would be to run linux os on it. people have managed to run linux on ipaqs and mda pro. pdaxrom basically just needs a working xserver (over simplification maybe).
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Hi Xromer,
I had a Sig3 about a year ago...very nice piece of hardware!
Very slim and light, with very nice size display and keyboard.
If only I could have put Linux on it I would have kept it.....
From what I learned, there is Linux available for the Sig2 in Japan, but it never got very far I think for the Sig3...don't know why....
However, without Linux I found it to be of limited value as you're stuck with only using older WinCE apps....not much support for them as they are considered 'older models' unsupported by their makers...
HTH,
Mark
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Right, now i ordered it, because searching on the Internet i found there' s a distribution who made drivers for it.
It' s called PocketLinux, it was an old project. As i see there are many voices of it under Linux.
The programs for WinCE 4.1, i saw that are the same for PPC2003.
Yes i know, one of the Microsoft' s pleasure is to make old things unusable leaving them wihout software.
But, from now, i see that i may have all the Drivers and Tools to make SIG III works on WinCE.
And it will be a good exercise to make it work under Linux especially for PdaXrom.
From now i choose it as a Car Stereo substitution.
I will put an amplifier and connect the Sig III to it.
I saw that Pc Car Stereo suites cost a lot more than SIG III and you have to buy 2 things:
A motorized CAR LCD and a WinCe PC.
With SIG III it' s all in one and you have the keyboard too.
After that think it with PdaXrom working, i think could be the best compromise between Notebook and PocketPC.
I made a Linux installation on a Jornada 720, that has nearly the same features.
It works great!!!! Because you have like a dual boot, yo can use WinCE and make Linux boot from it.
Linux on my 720 is perfectly stable and the Installation remains stable and boots very fast as it' s only on the 1 GB CF i put in it. I have not to be afraid of any data lost.
That' s why i think that SIG III with Linux could be excellent and i think it' s possible.
It' s only a question of Kernel drivers, like Touch Screen, keyboard etc.
As the CPU it' s an ARM one and the kernel already exists and embedded systems use nearly the same hardware as there are not so many fabricants.
When it will arrive i'll check the internal hardware and see if drivers already exists and sure i'll try to install Linux.
I' ll make you know.
BYEZ!
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GOod luck - I've got a sig3 and the hardware is fantastic. It'd be great to see how you get on with this. I believe it's got flash ROM rather than just a ROM, so you should be able to do something with it.
Best of luck!
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Xromer: good luck on getting Linux running on your new SIG III. It looks like a really neat piece of hardware. Please keep us updated.
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Xromer: good luck on getting Linux running on your new SIG III. It looks like a really neat piece of hardware. Please keep us updated.
[div align=\"right\"][a href=\"index.php?act=findpost&pid=124145\"][{POST_SNAPBACK}][/a][/div]
Offcourse as my skill in C is growing i have a lot of projects in mind.
The main prob is having time to discuss with other developers in realtime.
This is what i' m going to do today and tomorrow, especially with the GPE guys.
Sure i will keep you updated with all the things i' m doing.
I'm looking forward to my SIG III. I'm already searching for kernel issues and data specifications to find what chips are in my toy.
BYEZ!
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Offcourse as my skill in C is growing i have a lot of projects in mind.
The main prob is having time to discuss with other developers in realtime.
This is what i' m going to do today and tomorrow, especially with the GPE guys.
Sure i will keep you updated with all the things i' m doing.
I'm looking forward to my SIG III. I'm already searching for kernel issues and data specifications to find what chips are in my toy.
BYEZ!
[div align=\"right\"][a href=\"index.php?act=findpost&pid=124174\"][{POST_SNAPBACK}][/a][/div]
yay, hope you can make it! i'm content with WinCE on my sig3 (many new ppc apps will run on it, not just the old hpc apps), but it would be fun to have the option for linux too.
sig3 is one of my fav's so it would be really cool if this project works out.
is there a linux driver for the ATI video chip in sig3? hope so..
don't forget usb host either.
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Right guys, as you are so kind to seek me in all the thing i have in mind, now i would like you to help me.
The first thing is to know deeper about hardware composition of this tool.
Anyone who knows about the real chips names and trademark would be very in help.
I only know about:
CPU 400 Mhz PXA 255
NTT Docomo chipset including WCDMA and Hard Line Modem, is it right?
Touchscreen 800X480 made by???
Sound?
Video Card? ATI? what' s the name of the chip?
So i can begin to search for kernel drivers, it' s the main issue.
If the WinCE OS is in ROM like the Jornada 720, it' s only to load the kernel with the WinCE tools.
Compiled the kernel it' s always and ARM PDA, so you can use all the other packages like PdaXrom Feeds.
BYEZ! And THX you all again.
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hmm, ok, i'll try to find the info for you, i can't answer all this right now
there's no "hard line modem" though if you mean the dialup 56k type.
the OS is in ROM but the rom is flashable! however i have no idea how to flash CE back if it is needed by any chance.
did you get any new info meanwhile btw?
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hmm, ok, i'll try to find the info for you, i can't answer all this right now
there's no "hard line modem" though if you mean the dialup 56k type.
the OS is in ROM but the rom is flashable! however i have no idea how to flash CE back if it is needed by any chance.
did you get any new info meanwhile btw?
[div align=\"right\"][a href=\"index.php?act=findpost&pid=125096\"][{POST_SNAPBACK}][/a][/div]
Unfortunately my Sigmarion stucks in my customs in the Airport, so i haven' t yet tried it.
But what you told me about the flash it' s a good starting point.
Now, i remeber when i flashed my Ipaq, i backuped my old PPC 2002 rom and took it back to sell the device wihout any problems.
Tools to do this exist already on the Internet, so the only BIG PROBLEM are the kernel drivers.
That' s why am asking about the devices manifacturers of the Sigmarion chips.
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OK.. let me know when it arrives...
searching for info...
btw if the default japanese stuff is disturbing you too much, i can send you a link to the full english translation.
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OK.. let me know when it arrives...
searching for info...
btw if the default japanese stuff is disturbing you too much, i can send you a link to the full english translation.
[div align=\"right\"][a href=\"index.php?act=findpost&pid=125494\"][{POST_SNAPBACK}][/a][/div]
WOW!!! Finally it arrived!!!! It' s a very beautyful tool!!! Now, i think i have to umount the SIG to see how is internally done, it would be better to find informations on the Internet, but there aren' t.
Yes the Japanes CE doesn' t really fit for me, i would be glad if you could tell how to put an English translation.
THX!
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Right, finally i got all the internal specifications.
How you can see from the image these are the chips present in the SIG.
1 CPU PXA 255 400 MHZ
2 16MB ROMS from Macronix for the WinCE OS
1 4 MB Flash from ST Micro for the working memory
2 32MB DRAMS from Infineon as internal RAM
1 ATI IMAGEON 3200 with 8 MB RAM Samsung Chip
1 NEC COMET Asic Chip
1 Wolfson WM9705 Audio Chip
So, this is what i think about the kernel issues.
Ths CPU is the normal CPU target of PXA supported by linux, so there will be no problems about this.
The ATI Imageon 3200 is a powerful CPU for embedded systems these are specs.
And cmonex: yes, this Graphic CPU is already supported by linux, as in the ATI SPECS PAGE (http://www.ati.com/products/imageon3200/features.html) is said.
The problems for now are about the NEC Asic and Wolfson Audio Chip, i' m searching for the linux drivers about those.
We will see.
Byez!!!
P.S. Informations taken from here (http://www.softclub.co.jp/zoro/sig3/)
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Ok, all it' s right about chipset but ATI Chip.
The Chip is the Imageon 4200 as in the serial code over the chip.
Now i tried to start a linux kernel with HaRET and other tools, but it went up with a Japanese message i couldn' t understand.
So the first big problem is a full conversion of WinCE, i tried the instructions in this page (http://www.mikenchell.com/handheldpcs/), but i had problems and it didn' t work.
Any help with the WinCe translation?
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http://www.hpcfactor.com/support/cesd/s/0109.asp (http://www.hpcfactor.com/support/cesd/s/0109.asp)
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http://www.hpcfactor.com/support/cesd/s/0109.asp (http://www.hpcfactor.com/support/cesd/s/0109.asp)
[div align=\"right\"][a href=\"index.php?act=findpost&pid=126368\"][{POST_SNAPBACK}][/a][/div]
Many thx, chiark, this evening i will update my sigmarion and will try again Linexec and HaRET and see what' s going on Loading the Zauri kernel on the SIG.
I' ll let you know.
BYEZ!
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no worries
The absolute best way of doing this would be to reflash the ROM to get rid of CE totally, but I guess that's the second step after getting the drivers etc working.
Best of luck. It'd be great to have the Sig3 running Linux.
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no worries
The absolute best way of doing this would be to reflash the ROM to get rid of CE totally, but I guess that's the second step after getting the drivers etc working.
Best of luck. It'd be great to have the Sig3 running Linux.
[div align=\"right\"][a href=\"index.php?act=findpost&pid=126401\"][{POST_SNAPBACK}][/a][/div]
Right Chiark i' m near, i fixed all the DLL problems, finding a program called executable_check, that tells me what the error comes out when utilities run.
With this i made HaRET finally run!!! I' m checking all the GPIO and other SIG III settings.
Yesterday i spoke with Sashz and realized that could do a try to start the Zauri Kernel and PdaXrom tree on the SIG.
This evening i'll try and let you know!
I' m looking forward to try!!!
If it works i'll let you know all the steps i made.
Now the question is "Where can i find detailed Zauri internals?" to compare them with the SIG.
BYEZ!!!
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Great stuff, well done
I've just read the documentation for HaRET, and for the good that it did me it might as well have been written in martian
Zaurus internals are fairly well known: something like the 860 might be a good bet as that uses an ATI graphics chip rather than the on-chip solution found in the SL-Cxx00 range.
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Great stuff, well done
I've just read the documentation for HaRET, and for the good that it did me it might as well have been written in martian
Zaurus internals are fairly well known: something like the 860 might be a good bet as that uses an ATI graphics chip rather than the on-chip solution found in the SL-Cxx00 range.
[div align=\"right\"][a href=\"index.php?act=findpost&pid=126727\"][{POST_SNAPBACK}][/a][/div]
Right, that was the thing i would like to know.
I remember that one of the Zauri used the Imageon chip but i didn' t remeber which.
Now the only issues could be the Asic.
Between 1 hour i' ll be home and try.
I' ll let you know.
BYEZ!
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Great stuff, well done
I've just read the documentation for HaRET, and for the good that it did me it might as well have been written in martian
Zaurus internals are fairly well known: something like the 860 might be a good bet as that uses an ATI graphics chip rather than the on-chip solution found in the SL-Cxx00 range.
[div align=\"right\"][a href=\"index.php?act=findpost&pid=126727\"][{POST_SNAPBACK}][/a][/div]
Right, that was the thing i would like to know.
I remember that one of the Zauri used the Imageon chip but i didn' t remeber which.
Now the only issues could be the Asic.
Between 1 hour i' ll be home and try.
I' ll let you know.
BYEZ!
[div align=\"right\"][a href=\"index.php?act=findpost&pid=126745\"][{POST_SNAPBACK}][/a][/div]
UFF, no way, it tried all the utilities, like haret, hpcboot, linexec, but they need to be specifically compiled for WinCE.net and i don' t like to install WinCe development KIT, as i need to install windows, because the WinCe SDK do not run on Vmware, has some issues.
So now i have installed all i found on the net about Wince.
And trying to port some PocketPC apps, adding the DLLs that lack.
:-(
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i'll recompile haret for u with the sig3 sdk - it'll be monday before I get the chance tho.
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i'll recompile haret for u with the sig3 sdk - it'll be monday before I get the chance tho.
[div align=\"right\"][a href=\"index.php?act=findpost&pid=126798\"][{POST_SNAPBACK}][/a][/div]
Perfect chiark, so i have the time to study deeper the pdaxrom builder and the Zauri kernel.
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Just a quick ping to let you know I'm not dead - I'll try to do this tomorrow.
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Just a quick ping to let you know I'm not dead - I'll try to do this tomorrow.
[div align=\"right\"][a href=\"index.php?act=findpost&pid=127536\"][{POST_SNAPBACK}][/a][/div]
EHEHEHE! Do not worry, in the meanwhile i' m finishing to compile all the feed that i need for the GPE PIMS and Kernel Stuff of the Beta3.
When you' ll compile the haret tool i' ll begin to dump the GPIO of te SIG and see if the Corgi kernel can be modified to fit in the SIG.
:-)
BYez!
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Just a quick ping to let you know I'm not dead - I'll try to do this tomorrow.
[div align=\"right\"][a href=\"index.php?act=findpost&pid=127536\"][{POST_SNAPBACK}][/a][/div]
EHEHEHE! Do not worry, in the meanwhile i' m finishing to compile all the feed that i need for the GPE PIMS and Kernel Stuff of the Beta3.
When you' ll compile the haret tool i' ll begin to dump the GPIO of te SIG and see if the Corgi kernel can be modified to fit in the SIG.
:-)
BYez!
[div align=\"right\"][a href=\"index.php?act=findpost&pid=127593\"][{POST_SNAPBACK}][/a][/div]
Hi everyone, i have a spare sig i could use for testing and i also have a working gentoo system which i could use to compile. If there's anything i can do to help you, i'll be pleased in doing so.
Regards
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Great stuff, well done
I've just read the documentation for HaRET, and for the good that it did me it might as well have been written in martian
Zaurus internals are fairly well known: something like the 860 might be a good bet as that uses an ATI graphics chip rather than the on-chip solution found in the SL-Cxx00 range.
[div align=\"right\"][a href=\"index.php?act=findpost&pid=126727\"][{POST_SNAPBACK}][/a][/div]
Right, that was the thing i would like to know.
I remember that one of the Zauri used the Imageon chip but i didn' t remeber which.
Now the only issues could be the Asic.
Between 1 hour i' ll be home and try.
I' ll let you know.
BYEZ!
[div align=\"right\"][a href=\"index.php?act=findpost&pid=126745\"][{POST_SNAPBACK}][/a][/div]
The C860 uses the Radeon Imageon chips but I believe it's Imageon 100?
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The C860 uses the Radeon Imageon chips but I believe it's Imageon 100?
[div align=\"right\"][a href=\"index.php?act=findpost&pid=127809\"][{POST_SNAPBACK}][/a][/div]
Uhm.... yes i know, but i don' t think that the Video driver could be the problem, as in the ATI site it' s specifically said that the Imageon has linux support.
I think the problem could be the GPIO interface and the Asic chip.
Also i didn' t find the sound chip documentation.
But imagine that we can reach it (I have to because i need), the very big issue, is the battery utilization.
As the OS would be load totally in the SDRAM or SD memory, because the WinCE.Net system is ROM loaded, i saw in many posts that loading every time from flash or USB decreases the Battery duration very much.
UHM... i have a Jornada 720 loading linux like the Sig III, but i haven' t yet seen any big difference about battery duration.
We will see.
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wow, good luck, keep up the good work!!
i don't know what haret etc is, this is all over my head, so i can only support you by wishing good luck etc etc but i'd like to learn...
oh and i can help with hacking pocketpc apps. let me know what app you need.
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wow, good luck, keep up the good work!!
i don't know what haret etc is, this is all over my head, so i can only support you by wishing good luck etc etc but i'd like to learn...
oh and i can help with hacking pocketpc apps. let me know what app you need.
[div align=\"right\"][a href=\"index.php?act=findpost&pid=128116\"][{POST_SNAPBACK}][/a][/div]
Cmonex, thanks for your interest.
I would really like to port come PocketPC apps, until i will not begin the Linux Port.
Can you tell me how to do it or better can you do this for me if i send the apps to port.
As i'm really busy with the Beta4 feed.
BYEZ!!
THX in advance.
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hmm, ok, i'll try to find the info for you, i can't answer all this right now
there's no "hard line modem" though if you mean the dialup 56k type.
the OS is in ROM but the rom is flashable! however i have no idea how to flash CE back if it is needed by any chance.
did you get any new info meanwhile btw?
[div align=\"right\"][{POST_SNAPBACK}][/a][/div] (http://index.php?act=findpost&pid=125096\")
[a href=\"http://www.pocketpcthoughts.com/images/parekh/features/CeBIT-2003-2/NTT-DoCoMo-6a.jpg]http://www.pocketpcthoughts.com/images/par...T-DoCoMo-6a.jpg[/url]
i think this says it all. look at the third row in the right column. The ROM is definitively NOT flashable. the best bet in this case will be to load linux to a CF, like most HPC linux ports do.
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hmm, ok, i'll try to find the info for you, i can't answer all this right now
there's no "hard line modem" though if you mean the dialup 56k type.
the OS is in ROM but the rom is flashable! however i have no idea how to flash CE back if it is needed by any chance.
did you get any new info meanwhile btw?
[div align=\"right\"][{POST_SNAPBACK}][/a][/div] (http://index.php?act=findpost&pid=125096\")
[a href=\"http://www.pocketpcthoughts.com/images/parekh/features/CeBIT-2003-2/NTT-DoCoMo-6a.jpg]http://www.pocketpcthoughts.com/images/par...T-DoCoMo-6a.jpg[/url]
i think this says it all. look at the third row in the right column. The ROM is definitively NOT flashable. the best bet in this case will be to load linux to a CF, like most HPC linux ports do.
[div align=\"right\"][a href=\"index.php?act=findpost&pid=128740\"][{POST_SNAPBACK}][/a][/div]
Uhm the link is broken.
But i know OS it' s in ROM.
This is better for 2 things, no problem to deal with Boot Managers and no risk of Sig corruption as it is not writable.
Logically it' s easier to develop things, so you have only to load the kernel from the SD and upload the Tree of PdaXrom into the other SD ext2 partition.
Like i do for the Jornada.
The only issue should be battery duration as a costant SD access is needed.
Guys i need help to compile the HaRET for the SIG, if i haven' t HaRET i cannot begin to hack the kernel for the GPIO stuff.
It' s a focal point.
Because, after a dump of the SIG GPIO interface, i can post the thing in the Handhelds.org Port site and begin with the Handhelds guys to work.
BYEZ!!!
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OK, ok, I'm on it
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News it not good.
First off, I can't pull the CVS tree from work because CVS access is blocked - if someone wants to get this and zip it up, it might help
Secondly, the 0.3.5 version that I have is a little bit problematic to build. For starters, it's wanting gx.h, which isn't part of the Sig3's OS. It's wanting to statically link this, but I think I can get around it. Bear with me
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News it not good.
First off, I can't pull the CVS tree from work because CVS access is blocked - if someone wants to get this and zip it up, it might help
Secondly, the 0.3.5 version that I have is a little bit problematic to build. For starters, it's wanting gx.h, which isn't part of the Sig3's OS. It's wanting to statically link this, but I think I can get around it. Bear with me
[div align=\"right\"][a href=\"index.php?act=findpost&pid=129124\"][{POST_SNAPBACK}][/a][/div]
This is the CVS version downloaded now from the server.
Keep up the good work and THX a lot.
In the meanwhile i' m looking at the new Kernel 2.6.16 and patches.
BYEZ!
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I've just managed to build 0.3.5...
I've ended up changing video.cpp to link dynamically to gx.dll rather than use a static link. It should (might) work
Here's 0.3.5 compiled with the Sig3 SDK. Let me know if it works!
http://www.chiark.com/wince/techie/haret.zip (http://www.chiark.com/wince/techie/haret.zip)
I'll see if 0.3.6 is any friendlier to compile
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Blimey, having reviewed 0.3.6, forget 0.3.5!
I just need to do the same changes to video and all is good.
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Well, didn't even need to change the video stuff. Just needed to remove the KILL_WELCOME function as that relied on stuff that's just not in the 4.1 API, and add com_port.cpp to the project, and it built within EVC, whcih is nice
http://www.chiark.com/techie/wince/haret036-sig3.zip (http://www.chiark.com/techie/wince/haret036-sig3.zip)
Again, please report success/failure
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Well, both versions run. 0.3.7 (apparently!) complains that it can't read a register in the CPU, which might or might not be a problem.
I haven't yet entered a debugging session with it, as I'm using activesync which doesn't allow me to telnet into the device.
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Well, both versions run. 0.3.7 (apparently!) complains that it can't read a register in the CPU, which might or might not be a problem.
I haven't yet entered a debugging session with it, as I'm using activesync which doesn't allow me to telnet into the device.
[div align=\"right\"][a href=\"index.php?act=findpost&pid=129295\"][{POST_SNAPBACK}][/a][/div]
Well Chiark, THX a lot.
I will try it this evening now i want to finish some Zaurus Tools compilation.
If i' ll be able, i will track down all the possible informations abut the internal chips and begin the HandHelds porting project with the other Handhelds people.
BYEZ!
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No problems. If there's anything I can do, please shout
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Sorry, cannot reach your site http://www.chiark.com/techie/wince/haret036-sig3.zip can you please post this file on the Forum?
THX
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Try now
But just in case, see attached
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wow, good luck, keep up the good work!!
i don't know what haret etc is, this is all over my head, so i can only support you by wishing good luck etc etc but i'd like to learn...
oh and i can help with hacking pocketpc apps. let me know what app you need.
[div align=\"right\"][a href=\"index.php?act=findpost&pid=128116\"][{POST_SNAPBACK}][/a][/div]
Well i started haret and make it watch for GPIO, but it gave me a lot of errors.
One of this it' s when come up, it gives EXECPTION reading coprocessor 15 register 0
After that without running any script it gives Unknow keyword '`'
I think the problem is WinCE 4.1 and the fact the other messages are in Japanese.
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Did you try the original (0.3.5) haret? That started up with less errors...
What did you use to connect to the sig3? I tried from XP via telnet, but the TCP/IP connection didn't want to work properly - it seems a nasty hack that MS have made to get it sort of working...
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Did you try the original (0.3.5) haret? That started up with less errors...
What did you use to connect to the sig3? I tried from XP via telnet, but the TCP/IP connection didn't want to work properly - it seems a nasty hack that MS have made to get it sort of working...
[div align=\"right\"][a href=\"index.php?act=findpost&pid=132273\"][{POST_SNAPBACK}][/a][/div]
I tried all chiark, the things that i need, as the WATCHGPIO function, don' t want to work.
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Poo. No idea then.
I'll try to run it in debug mode if I get a chance.
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Poo. No idea then.
I'll try to run it in debug mode if I get a chance.
[div align=\"right\"][a href=\"index.php?act=findpost&pid=132384\"][{POST_SNAPBACK}][/a][/div]
Try this.
Edit a default.txt in the same dir of the haret.exe
Put this WATCHGPIO 10
It means that Haret will stay watching for 10 secs the GPIO events.
If the command works do something like insert or eject the SD or the compactflash, touch the screen with the pen, do anything that needs an I/O by the SIG III.
Tell me all the answers of the Haret tool doing these.
BYEZ!
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Hi,
I am very interested in this project because I would like to use pdaxrom on my sigmarion III. So, how is the project going? You all are doing a great work.
Thanks,
Xavi
Poo. No idea then.
I'll try to run it in debug mode if I get a chance.
[div align=\"right\"][a href=\"index.php?act=findpost&pid=132384\"][{POST_SNAPBACK}][/a][/div]
Try this.
Edit a default.txt in the same dir of the haret.exe
Put this WATCHGPIO 10
It means that Haret will stay watching for 10 secs the GPIO events.
If the command works do something like insert or eject the SD or the compactflash, touch the screen with the pen, do anything that needs an I/O by the SIG III.
Tell me all the answers of the Haret tool doing these.
BYEZ!
[div align=\"right\"][a href=\"index.php?act=findpost&pid=132413\"][{POST_SNAPBACK}][/a][/div]
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why be not sound here?
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is Mr. xromer here?
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all gone quiet? the Sig is a very interesting device and if it could be made to run linux would be a great handheld!
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all gone quiet? the Sig is a very interesting device and if it could be made to run linux would be a great handheld!
[div align=\"right\"][a href=\"index.php?act=findpost&pid=148132\"][{POST_SNAPBACK}][/a][/div]
I haven't seen/heard from Xromer in any of the forums here in some time... perhaps he is taking a break?
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He's still around.
Send him a PM.
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very interested in this one... the mask rom is a real PITA. i was wondering, would it be possible to replace the masked roms with pin compatible eeproms? i can see from the pics that those roms are BGA chips and therefore very hard to desolder but not impossible... seeing how many hardware mods have been attempted on various zaurii, i would like to see someone try this one out. would the desoldering process destroy the mask roms?
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or is there room to hack in an additional memory device or at least more RAM for linux to run without stripping it too far?
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or is there room to hack in an additional memory device or at least more RAM for linux to run without stripping it too far?
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thats a great idea since memory chips arent bga. much easier to desolder therefore, much easier to do. you could even do it at home with a regular iron although you have to be very careful. but that doesn't really solve the problem as you will still have to load linux off the cf or sd card which certainly takes more time and puts additional strain on the battery. the ideal thing would be to replace the mask rom with a (possibly bigger) pin compatible eeprom. if such a thing even exists. maybe we should ask da_blitz, he's more than able to do such a thing. or atleast he can tell us if such a thing is even possible. if it is, it all boils down to getting a replacement chip and someone who has adequate equipment for the soldering/desoldering process. and another thing... if this is possible i really wouldn't have to choose between a c1000 and a sig3...
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if you could hack in an SD card interface, then arrange for WinCE to run a boot loader to boot from SD, you'd get pretty close to ideal solution.
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if you could hack in an SD card interface, then arrange for WinCE to run a boot loader to boot from SD, you'd get pretty close to ideal solution.
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thats a good solution too. but where is xromer? is he still working on this thing?
here's a link to sig3 sdram datasheet:
[a href=\"http://www.ortodoxism.ro/datasheets/infineon/1-HYB39L128160AC_2003-02.pdf]http://www.ortodoxism.ro/datasheets/infine...0AC_2003-02.pdf[/url]
and here's a possible 256mb replacement chip:
http://www.datasheetcatalog.com/datasheets...160AC-7.5.shtml (http://www.datasheetcatalog.com/datasheets_pdf/H/Y/B/3/HYB39L256160AC-7.5.shtml)
xromer mentioned earlier that he has trouble finding a driver for the audio subsystem.
this might help; http://www.linuxhq.com/kernel/v2.4/23/Docu...touchscreen.txt (http://www.linuxhq.com/kernel/v2.4/23/Documentation/wolfson-touchscreen.txt)
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This would still be great hardware to run pdaxrom on (especially now I'm zaurus-less!)
I'll see if I can get hold of xromer...