Hey guys,
As we know Atom doesn't charge with other chargers while it's on, unless you hack a cable to connect miniusb ID pin to gnd.
I've lost my charger. Does anybody know or can test to see the resistance value of the ID pin? Some call it 'pin 4' on mini-usb, but actually it doesn't have a number and the next pin is numbered 4
The ID pin may be directly connected to GND, or may have a resistor between gnd. I need to know it to make/find a more original-like cable.
Also, does anybody know how HP rw68xx handles this with a charger with unpluggable usb cable? Does it require using a special cable with modified mini usb socket for wall charger? Cause there is no equivalent pin for the ID pin, on a standard usb socket, so probably there is no identification function on the charger.
Edit:
I'll try to locate a working cable / usb-miniusb adapter on dealextreme, if you know a specific item which should work, that would be even better.
Thanks
Related
Hello,
In a previous posting I requested help in identifying a problem with main/ car charging of my XDA II but apparently it is a new problem with no straightforward diagnosis and solution!
Briefly the problem is that my XDA charges and synchronizes through computer but not through main or car charger. Now I am thinking of rewiring one of my two car chargers so that they can charge the XDA II as if it is connected to computer's USB.
What alteration should I do or simply what wires should I connect to pins (which pins?) to make such charger?
Shall appreciate assistance.
Thanks.
On the USB cable it's 1st pin (VDD) and the 4th pin (or 5th on some cables) - GND.
utak3r said:
On the USB cable it's 1st pin (VDD) and the 4th pin (or 5th on some cables) - GND.
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Click to collapse
Thanks for your input. What pin sequence are you following? If I am right, normally it is counted from left to right (when you are viewing bottom connectors with screen faciing upward!)
Regards
http://wiki.xda-developers.com/index.php?pagename=Connectors
Rudegar said:
http://wiki.xda-developers.com/index.php?pagename=Connectors
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Thanks for your link.
Since the standard car charger has only two wires, should I short 19-22 (to +ve) and 15, 17, 18 (to -ve)? or conneting any one of 19-22 should be OK?
Shall this then simulate the condition as if it charging through USB?
What potential should be at the out-put of car charger (if we are charging XDA II)? 5V or 6V?
Regards
You've completely screwed it
You can make a generic cable, for charging and USB connection this way:
data cables (USB+ and USB-, take them from google which one is which) connect to UDC+ and UDC- (as shown on schematics linked by Rudegar).
Then connect V+ from USB Vcc to USB_VDD and to one of 20-22 pins. The last one, ground connect to one of the 16-18 pins. That's it. It will charge and synchronize your Hima.
Is there any way to see if the unit is being fast or slow charged? It seems that the HTC charger uses an extra pin on the charger to enable fast charging and that MAY be why some aftermarket chargers (wall and car) do not seem to keep up with the battery discharge when running even if their plugged into a charger with sufficiant current capability. The HTC Wall caheger is rated as a 1 Amp charger. I have other chargers that use an external USB cable to connect, both rated as 1.5Amp (1500mA) chargers but seem to charge very slow. Soooooo I'm looking for the difference between the HTC charger and the aftemarket ones to see if I can make the ones I have work properly.
Thanks for any help
joe
<edit> in Looking at the Mini USB spec I find 5 pins labeled 1-2-3-x-4 with 1being VCC (5v), 2 & 3 being Data + & - and 4 being Gnd. Does the Advantage use the X pin to enable fast charging? How? Does it provide a second 5v line to cause/enable the Advantage to fastcharge? I think I need to look at the wall charger mini USB pinouts.
After talking to Pocket PC Techs and looking around online, it looks like the x-pin (next to pin 4(gnd)) is shorted to pin 4 to provide the advantage with a sense line to tell it to fast charge. The also shuts off the data lines in the unit AFAICT. Still don't know what the current capability of "Fast Charge" is or how to ask the unit to query the port for status. USB ports are generaly limited to 500ma and the stock charger is 1000ma (1A) so it seems that to ensure the MAX charge, the cable connected needs to have the x pin and pin 4 shorted. This is usefull if you are NOT wanting to do a data transfer (car GPS, stand alone charging, etc).
Here is a link to the connector http://pinouts.ru/PDA/pda_miniusb_pinout.shtml
Anyone can add to this?
Joe
I just received the Lil Sync DUO Mini-5 Adapter from PPC tech and it works perfectly. I'm now getting a fast charge from my PC (no sync) and I'm able to charge my S705 bluetooth headset.
Interesting news on the pinouts. I've never heard of any utility that shows fast vs. slow charge.
I wonder if anyone has a utility that can sense a gnd on the x pin (next to gnd) of the input connector. Does anyone have a schematic of the advantage side of the input power/data connector. It would me that there might be a pullup on that line sothe unit see's it as a high untill pulled low by a ground applied tothe x pin.
here you have "hot to do it"
http://forum.xda-developers.com/showthread.php?t=396053
ppa25 said:
I just received the Lil Sync DUO Mini-5 Adapter from PPC tech and it works perfectly. I'm now getting a fast charge from my PC (no sync) and I'm able to charge my S705 bluetooth headset.
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Click to collapse
Please tell me i need "PPC Techs HTC Advantage Lil Sync Extended Cable + mini 5 DUO" ( http://www.expansys.com.gr/p.aspx?i=145972) or ONLY "PPC Techs HTC Advantage Lil Sync DUO Mini-5 USB Adapter" (http://www.expansys.com.gr/p.aspx?i=145975) ?
So this may be a silly question, but I've just received the T-Mobile MDA (HTC Wizard) second-hand and without a charger.
The Mini USB port on the bottom allows ActiveSync and charging from my notebook's USB port, but when I try to charge using an AC-to-USB adapter it doesn't work... I've tried two different Motorola phone chargers and a generic one that came with my Jawbone that has a USB female connector on the adapter and you supply your own USB cable. I've used the same cable I was using when attaching to the PC, but no luck.
Interestingly enough, I did get it to charge with the same USB cable once at an airport by plugging it into the Southwest Airlines chairs with the USB power plugs...
So does anyone know? Does this phone require a special sort of charger?
you need a charger that is rated 1.0Amps.
usb is normally 500mAmps, not enough to charge your phone.
My N7 shows charging when connected with wall charger but actually its its not charging because battery is draining as it does with out charging.
following are my findings
its happening with both wall charger and PC usb port
wall charger is fine because its changing other devices
USB cable is correct because its working with other device and i can transfer files to N7 when connected to PC
i charge my device by using pogo pins 1and4 with wall charger. i test the connectivity between pogo power pins(1 and 4) with micro usb power pins.it seems that -ve pogo pic connect with -ve micro usb pin internally but positive pin pogo pin shows no connectivity with usb jack +power pin.so it seems that +ve power pin of micro USB jack is defective. Please help me how to fix that.
I'm currently in Karachi Pakistan and N7 was bought from USA from Google play store on September 1st. Please advise should i send it back to USA again to claim warranty or try to fix it buy opening it and replacing port because apparently +ve terminal of port is not working.
Hello guys, I'm trying to interface android tab with peripherals. Problem is, it is having only one micro USB port which is used for charging and otg/host, only one function is possible at a time .But I need to charge the tab and simultaneously transfer data to peripherals, say for example I need to use external mouse and charge the tab at same time.
So, is there any way to do it?
I know usb has 4 pins 5v,d+,d-,gnd. I thought to wire charging input power to tab pin 5v and gnd and pin D+,D-of tab to mouse D+, D- and giving external power supply to 5v and gnd pin of mouse.
Is this a right method? To charge and transfer the data at the same time?
Kindly help me. Suggest a better way to do it.
(mini & micro) USB connectors have 5 pins: Vbus, D-, D+, Id, Gnd.
For OTG, the Id pin is connected to Gnd.
It's like the old adage, "You can lead a horse to water, but you can't make him drink."
You can connect a peripheral to an OTG host and have it work fine.
You can then connect an external power supply across the Vbus and Gnd.
The problem is, how does your host device know that it can "drink"?
There are basically two ways.
If the host detects power on its input before it switches into OTG host mode it may continue to charge.
If the host is in OTG host mode, device-specific commands to the charging circuits may convince it to charge.
There may also be non-standard Id resistor values for signalling host & charge for some devices.
I think your mileage would vary very much depending on what devices your using. AOS was not meant to deal with people hacking on the USB port, and probably the code to implement those features depend on your HW/FW.
If its a Samsung, you can play with some resistor values like these:
http://forum.xda-developers.com/showpost.php?p=25532839&postcount=2
I think the USB "CarKit" specifications should allow you both to charge and "connect" in some way.
A more easy solution would be to use a BlueTooth mouse and keep charging as usual.