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DrSethMD |
2005-11-05
, 02:53
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Posts: 8 |
Thanked: 0 times |
Joined on Sep 2005
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#1
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I was wondering, I have a large jumpdrive (1gb) and rather than opt for the rsmmc would a jump drive work? I know that the usb doesn't suport powerless peripherals but could jumpers be an exception?
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2005-11-05
, 03:07
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Posts: 114 |
Thanked: 11 times |
Joined on Oct 2005
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#2
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you are refering to usb pen drives, right?
these devices don't need a lot of power.
I still don't have a 770 so I don't know if this aplies, but i find it very strange that the usb connector doesn't have a +5v connector...
(usb uses 4 pins: +5v; usb_N; usb_P; gnd.)
anyway, the power connector (of the 770) is just next to it...
It "may" be possible to connect a plug to this power connector, and "leech" power from it. (i don't know for sure).
If it has 4.5 or 5v, then there's no need for a conversion... but if it's 3.3v, we need a small circuit to generate 5v from it.
these devices don't need a lot of power.
I still don't have a 770 so I don't know if this aplies, but i find it very strange that the usb connector doesn't have a +5v connector...
(usb uses 4 pins: +5v; usb_N; usb_P; gnd.)
anyway, the power connector (of the 770) is just next to it...
It "may" be possible to connect a plug to this power connector, and "leech" power from it. (i don't know for sure).
If it has 4.5 or 5v, then there's no need for a conversion... but if it's 3.3v, we need a small circuit to generate 5v from it.