Author Topic: Flash Upgrade  (Read 2899 times)

guylhem

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Flash Upgrade
« on: October 17, 2005, 11:21:24 pm »
Hello

Since I'm quite close to actually upgrading the SL6000 flash, I'm wondering if anyone would be interested in a simpad flash upgrade?

I'd need some help - preferably from someone with a JTAG'ed simpad :-)

Guylhem

jbbrs

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Flash Upgrade
« Reply #1 on: October 18, 2005, 10:58:30 am »
Quote
Hello

Since I'm quite close to actually upgrading the SL6000 flash, I'm wondering if anyone would be interested in a simpad flash upgrade?

I'd need some help - preferably from someone with a JTAG'ed simpad :-)

Guylhem
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Mine is JTAGed (a small problem with the bootloader some time back), what kind of help would you need?

guylhem

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Flash Upgrade
« Reply #2 on: October 19, 2005, 08:00:34 pm »
Hello

Well I'd be interested in a simple experiment - removing the J3 strataflash (16 Mb per chip) and replacing it by greater chips (say min 32 Mb each, or even 128 each !) to boost internal storage.

After that, a new bootloader would have to be installed by JTAG. If you feel like trying I can check the chip reference. Finding/soldering the chips could be troublesome however.

jbbrs

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Flash Upgrade
« Reply #3 on: October 20, 2005, 01:08:46 pm »
Quote
Hello

Well I'd be interested in a simple experiment - removing the J3 strataflash (16 Mb per chip) and replacing it by greater chips (say min 32 Mb each, or even 128 each !) to boost internal storage.

After that, a new bootloader would have to be installed by JTAG. If you feel like trying I can check the chip reference. Finding/soldering the chips could be troublesome however.
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I was afraid it might be something like that... I think my soldering skills are very rusty by now. Just inserting the jtag header I almost destroyed the simpad, as one track jumped out. Luckily I managed to solder it into place at both ends. So I won't be able to help you much here, at least not until I manage to buy a new soldering station and practice a lot more...

Tom61

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Flash Upgrade
« Reply #4 on: October 21, 2005, 05:32:40 pm »
Keep in mind that the flash chips in the 6K are NAND, and StrataFlash is NOR, so you can't use the same chips as in the 6K upgrade.

guylhem

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Flash Upgrade
« Reply #5 on: October 23, 2005, 01:06:07 pm »
oops. forgot again. would you by pure chance have some spare nor chips?

Tom61

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« Reply #6 on: October 23, 2005, 09:54:54 pm »
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oops. forgot again. would you by pure chance have some spare nor chips?
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I haven't had any spare in months. Not sure where to buy them by themselves, but about 90% of the newer Pocket PCs use StrataFlash, so you could pick up a broken screen Pocket PC on eBay and rip the chips out. Most PPCs use two chips for flash, so picking up a PPC with 64MB flash should yeild two 32MB chips.