Originally Posted by chuckrudolph
Is there a trick to using swissknife that I am missing?
I'm trying to format a 500GB WD passport drive to use with my Philips PET 1030.
Nothing seems to work. I've tried all three file system types (FAT16, FAT32 and NTFS). I've tried different partition sizes with FAT32 (32GB, 100GB, 500GB).
My Philips keeps reporting "No USB".
I don't recall anything special. I just used SwissKnife to format to FAT32 and let it go at that.
Tell me about the cable you are using? I can only make mine work using a 12" cable with braided metal shielding (like this one
, but shorter). If I use a longer cable or one without braided shielding, my PET1030 also says "no usb."
FWIW, my PET1030 will play off of my Maxtor 2.5" 250gb drive whether the PET1030 is being powered by the AC-DC transformer/power supply ("wall wart") or by the DC-DC car cigarette lighter power supply or is merely running on the internal battery.
On the other hand, my Philips 5982 home
dvd player (runs on AC only; not portable) does not provide enough current to the usb port to read from the exact same drive using the same cable.
All usb host devices are supposed
to provide 5vdc @ 0.5amps. All usb devices are supposed to draw no more than 5vdc @ 0.5amps. In a perfect world, my Philips 5982 would read from the same Maxtor drive that the PET1030 reads from, but such is not the case. Maybe the 5982 is weak. Maybe your WD Passport is drawing too much current.AS AN EXPERIMENT
maybe you could get your hands on a USB "Y Cable" (like this one
). The cable will have one usb-MINI
connector at one end, and the other splits to two usb-A connectors. Connect the single end to your WD Passport, one of the others to your PET1030 and the other to:
(1) a pc,
(2) a cig-lighter to usb power supply like this one
(3) a "wall wart" AC-DC power supply like this one
This is not a permanent solution. It's merely a test. This will provide more current
to the drive than you are now. If it works
, then your problem is not the formatting of the drive. Rather, it would mean that the power supply of your PET1030 is weaker than mine (doubtful) or your WD Passport is trying to draw more current than the spec allows, but isn't getting enough to spin up and run, so it reports "no usb."
If you're not bored to sleep yet... the usb spec (up to usb 2, anyway) is for four connectors. One pair is for data and one pair is for power. When you buy a "usb charger" for your iPod, etc., it only has two conductors (for the power pair). It seems obvious to me that a better "Y Cable" would be one that has a single usb-A connector at one end, which splits with the data pair only
going to another usb-A connector and the power pair only
going to either an AC-DC (110 volt AC to 5 volt DC) transformer ("wall wart") or a DC-DC (12 volt DC to 5 volt DC) cigarette lighter transformer. I've looked for such a thing, but never found one. It wouldn't be too hard to build one, but not having a pressing need, I've never tried.My gut feeling is:
format with Swissknife to FAT 32 and use a really short, very well shielded cable and you'll be fine.