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ChrisZ
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ChrisZ

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11 Apr 2005
First, the most interesting result:

My C3000 is faster than ever. Every application starts up quicker and there are no more spin-up times when the microdrive has felt asleep.

Compare yourself:

Reboot until the sound can be heard: microdrive 142s, SanDisk Ultra II 120s (-15%).

Starting Opera after having rebooted until the error message appears (startpage cannot be found): microdrive 16s, flash 10s (-37%)

It's really impressive! But the most impressive thing is, that there's no time lag after the microdrive would have fallen asleep.

For anyone who's interested:

I've just exchanged the 4 GB microdrive with a SanDisk Ultra II card. It's easy:

1. Have a look at the internal-pictures from the 3000: Click here!

2. Remove the Hitachi microdrive

3. Insert the microdrive into your PC and have a look at the partitions, assuming the cf card is /dev/sda:
CODE
fdisk /dev/sda


4. Copy the partitions to your PC-HDD:
CODE
dd if=/dev/sda1 of=hda1
For sda2 and sda3 do the same. It's a good backup, anywhere.

5. Insert your flash card into your PC and create new partitions on it. I think it's a good idea to let the system partition (hda1) exactly as it is: about 100 MB. Partition 2 (ext3) can be changed in size. Partition 3 is the left-space-device (vfat).

6. Copy microdrive-partition 1 to the flash card:
CODE
dd if=hda1 of=/dev/sda1


7. Copy the remaining partitions to the flash card. That could be done as above with the dd-command, but the new partitions must be equal in size. Or you can mount the old-partitions, e. g.
CODE
mount -o loop,ro hda2 /mnt/OLD/
and copy the files to the newly formated partition sda2:
CODE
mkfs.ext3 /dev/sda2
And now copy the files. The same has to be done for hda3.

8. Insert the flash card into the Zaurus.

9. Reboot!

10. Wonder why the Zaurus is that fast.

If someone has problems with one step, feel free to ask: I will help as good as I can.

And don't forget: I don't take any responsibilitiy for your Z. Anyone following my instructions is responsible for the results. I can only say: My Z works better than ever. biggrin.gif
21 Mar 2005
Hi!

I've just read in the Intel PXA27x-specification. And there are some interesting things about the USB-capabilities of the processor:

USB-client: USB 1.1 with max. 12 Mbps

USB-host: USB 1.1 with max. 12 Mbps. The host provides 3.3 V to clients but the normally necessary 5 V for HDD or something "bus-powered" are not provided. And, the 3.3 V output is combined with a max. current of 25 mA and therefore 82.5 mW. That's much too less for a harddisk. According to Toshiba, Hitachi, Seagate and Fujitsu, current 1.8 inch harddisks need at least 1.2 W for spin-up.

Intel (see ftp://download.intel.com/design/pca/appli...als/2800002.pdf and ftp://download.intel.com/design/pca/appli.../28000502.pdf):
QUOTE
The +5 V VBUS source from USB host controller, which must be available for bus-powered peripherals, must be supplied from an external source, but it is not part of the PXA27x processor silicon.


I don't think Sharp added some additional USB functions which were not provided by the PXA270.

It's too bad, I really thought I could use an external HDD without power supply.
7 Jan 2005
Anyone kino2 0.4 running?

When I try to run nothing happens. kino2 0.3 runs fine.
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