Dual MiniSD I/O possible? - iPAQ rw6828, XDA Atom General

i recently stumbled on a thread on Hackaday, where there was one entry where he managed to piggy back the connection of the SD and hard wired it to a SD Wifi, leaving the SD slot open for a SD memory card (parallel connection).
The question is, is it possible to do the same on an Atom? or any PPC for that matter? Maybe, a dummy SD or minisd with two MiniSD2SD connectors (for holder) in parallel so you could connect a minisd memory on one and a minisd wifi on the other. I wonder if the parallel connection will work?
Also correct me if im wrong, but i read somewhere that the SDIO uses two modes of communication with the SD, one is serial i think and the other is direct or something, but the latter is much slower and only good for devices like wifi and stuff and the direct method is for memory. So saying that, i guess 2 Memory card is not possible, and only Device and Memory is quite plausible.
I hope its possible. Anyone care to enlighten the subject?

why do you need to install an sdio wifi card to your atom when it already has built-in wifi? Anyway, it would be better if someone can make a sd to usb converter. This way, we can expand the sd card capacity to that of a flash drive. or maybe we can expand the RAM by replacing it with a flash drive? Anyway, maybe an expert can give his 2 cents on this.

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Possible to use a external hard drive with the Universal?

I would like to set up my Exec to use a external hard drive to access files. Is it possible to connect and use a external hard drive on my PPC?
You can your ppc into a USD memory stick, however there are considerations :
http://forum.xda-developers.com/viewtopic.php?t=45411
Only managed to do it via wifi. Just for streaming video and music.
You can't connect external drive to universal, because it does not have USB host functionality.
The only way is to connect over WIFi, there is an ASUS WiFi external drive that works like this.
Of course you can use WiFi, UMTS or even BT to connect to your home machine and access stuff or you can use services like Avvenu or ORB for this...
Where could I get a Bluetooth external drive at?
BUMP THAT said:
Where could I get a Bluetooth external drive at?
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To my knowledge you can't.As far as I know there is no BT drives on the market. The only solution is WiFi or internet service.
OK. Thank you. Myabe I can get a WIFI Drive.
We already have 4gb sd cards for little money, 8 gb for a bit more, and 32 gb on the way to market. That's why there are no hard disks for Universal.
tailazoom said:
We already have 4gb sd cards for little money, 8 gb for a bit more, and 32 gb on the way to market. That's why there are no hard disks for Universal.
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I don't think Universal has support for High Capacity SD cards.
"Normal" SD standard only supports sizes up to 2Gb. There are some 4Gb cards that work in some machines (but it's not 100%).
The newer cards are SDHC specification, that is a revision of original SD standard, and your machine has to support SDHC in order to use such cards, unfortunatelly I don't think Universal does support this...
Several members of this forum are using 4gb sd cards with Universal
4gb cards work fine with the universal as it can read FAT32.
colonel said:
4gb cards work fine with the universal as it can read FAT32.
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This has nothing to do with ability to read FAT32 - as far as I know pretty much any WM device reads FAT32. It has to do with the fact that SD specification goes onlt to 2Gb. There are some 4Gb cards that go around the 2Gb limitation, and you can use these cards in SD capable devices - but it's not guaranteed that such card will work.
The new SDHC cards, are bult with new specification, and you have to have a device capable of reading such cards.
I don't know if Universal, or any other current WM device supports this or if a software patch can help.
Basically what you have to be aware is that if you buy HC card, you sould better test it first in your device, to make sure it will work!
AFAIK Secure Digital High Capacity SDHC is just fat 32 which the UNI has no problem with, the devices that will really struggle are the likes of cameras
ice_coffee said:
AFAIK Secure Digital High Capacity SDHC is just fat 32 which the UNI has no problem with, the devices that will really struggle are the likes of cameras
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Like I said, I'm not sure if SDHC will work in Universal or any other current WM machine - I would definatelly be carefull.
On the other hand I'm also not sure why FAT32 would be the difference between SD and SDHC, as I had most of my cards formatted with FAT32 since at least my iPAQ in 2003...
Anyhow here is a link with announcement about SDHC, that clearly states 2Gb limit of "normal" SD cards, but no details on technical differences of both specifications.
http://www.sdcard.org/events/SDHC_Release06.pdf
my 4gb works flawless...
but thats also thanks to newer rom (since older roms had the camera problem)
im sure when the 1st 8gb SD cards become available someone will try if it works and we will also know...
if it wont work well in 1st attempt, maybe a rom-update could fix it 8)
This has now gone off topic!!
I spend alot of my time in forums just searching in order not to make usless or double posts in regards to what I require!!
There are threads open already in regards to the high capacity SD cards sao why are they not being used?
In regards to the external hd on universal believe this to be case closed unless someone has something to input about it....actually about it!
This forum is great but unfortunatelly already bad for indexing for search purposes....lets not make it worst.
WBR
My 4gb works fine. Only problem is that I still have the original rom and needed less than 2gb free space for it to work, but then that was why I got a bigger card...

Help with retreiving files from an encrypted card??

As some of you know already, my MDA met an unfortunate end when it went for a swim in my toilet. My 1Gig Mini-SD card was still in the phone when it went into the toilet.
Naturally, the phone is completely fried but I don't know about the memory card. I do, however, know for a fact that my memory card was encrypted using that encryption setting that comes in most custom ROMs these days and now I have purchased a memory card reader to try to recover some of the information on my memory card to put on my 4Gig SDHC in my Touch.
The question is, is there a way to reverse the encryption from a desktop computer or is there some kind of adapter that can plug into my USB on my Touch that can adapt the Mini-SD?
I really need to recover this data.
Thanks in advance guys.
Dan.
EDIT:: An idea I had, not sure if it will work, is to take an SD card reader that will read Mini-SD and use a Mini-USB to Mini-USB cable to connect the reader to my Touch. Does anyone here know if that will work? I don't have the cable, I was trying to find out if it would work first before I went out and spent more money.

hard wiring an external wifi card

Iv read alot about but, no definate answers, so I was hoping you guys could finally give me the correct answer.
I have an SPV M1000 and as we all no there is no inbuilt wifi, I have bought a SDIO wifi and have a SD storage card, I have seen several hardware hacking projects saying that people have taken apart teir PDA and manually solder wires from the connecting pins of the SD slot to the wifi card, and they still have the SD slot free for the storage card. so cut a long story short they have internal wifi and they can use the sd storage card.
Is this a feasable hack?
not sure if newer roms changed that but himalaya dident use to be able to work with those sdio cards with both wifi and memory
Iv got a PLUSCOM SDIO card and it works great no probs at all, iv read some posts about the contollers on the boards wont be able to handle two devices at once.
In thoery I dont see any problems other than mounting it somewhere as surly the controller will just share the load as long as your not trying to use both devices at exactly the same time (not likely in my case) then it will be just like having one card in.

Multiple Micro-SD cards..

Anyone have the knowledge to use multiple Micro-SD cards in the BA,
using an switch and and Micro-SD bridge?
Would be great if we could use more then one SD and up the available space.
Or maybe add two Micro-SD's to one adapter.
hmmm, intresting idea.
but i think the maximum space will be 4gb, due the fact that there is no SDHC driver for BA...
seems to be some kind of fat 16/32 problem.
could you post a link or a picture of the product you plan on using, i can't really picture it.
but if you already have something like that, you could also explain the way it works with a pc card reader.
here are some options i could imagine:
1. if you can combine 2 cards to some sort of raid system offering you one partition from 2 cards, it wouldn't work because of the maximum partition size.
2. if you actually switch between the cards and both are 4gb max, i could imagine that it works, on the other hand, when letting an adaptor for mini-sd or micro-sd in and just change the "small" inside card, it does not recognize the change. also, that wouldn't be such a great advantage in storage space, just a better way to carry a 2nd card.
3. if it combines 2 cards for permanent use of both and they are presented as 2 different partitions, it just might work, as the BA also supports several partitions on one sd card, and that way, data traffic between the 2 cards would also be possible.
also, i have to throw in: the fat16/32 in this case just influences the maximum file size, not the partition size. if the ba could just read fat16, you could simply make several 4gb partitions on a sdhc card ...if there was a sdhc driver.
There are a few card adapters for Stick Pro Duo that are for dual microSD cards. I don't think I have ever seen it for microSD to SD.
Hey Chef, here is a link for that
http://www.amazon.com/MicroSD-MicroSDHC-Adapter-Converts-Cards/dp/B001RPEJA4
It is a pretty nice idea and probably the BA will just see it as another drive (ie Storage Card1 and Storage Card2).
Those MicroSD > MS adapters look very interesting indeed.
Something like that would be great for SD as well. Havn't found anything though.
That is rather interesting..
But I think we are going to have to be creative here, and
make one our self.
Before attaching, and possibly destroying, some cards I would like some more information if possible.
Will/can the adapter detect them as two cards if we connect them together. Detect them as two partitions..
Or will it mess up completely.(Possibly) The BA can handle more memory, and will rename it's location accordingly that's for sure, but through an standard SD bridge..?
Can the internal bridge handle more then one device at a time..?
External: TV, GPS, Radio, Camera, WiFi ect. can be used with the SDIO interface, so it may be possible along those lines,
egzthunder1 said:
http://www.amazon.com/MicroSD-MicroSDHC-Adapter-Converts-Cards/dp/B001RPEJA4
.
Click to expand...
Click to collapse
this adapter MS PRO DUO
fanik said:
this adapter MS PRO DUO
Click to expand...
Click to collapse
If you read my post, you would see that I said that even before the link was posted...

[Q] SD card bus on himalaya

Hi all.
Is it possible to use multiple Sd cards on hima?
I did`t find any product that would split Sd card slot like hub or something.
I read article where it states that with MMC bus it would be possible to use multiple cards.
So is it possible to do that on himalaya?
If possible I am planing to wire MicroSD adapter to 2 SD slots (from old SD card readers). Will I need something in between like resistor, power supply or something else? Will I need some kind of driver to separate those cards data?
How large is the risk of burning SD slot on himalaya or is there safe way to test it without damaging my phone?
Link to article:
http://www.embeddedrelated.com/usenet/embedded/show/69909-1.php
Sorry for bad eng. Thanks

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