Charge via le Port USB

Bonjour,
Dans les caractéristiques techniques du produit IPAD 2 il est noté que la Charge via l'adaptateur secteur ou le port USB de l'ordinateur est possible. Cependant cela ne fonctionne pas avec le mien. Pouvez vous me dire pourquoi
Bien cordialement

Bonjour...
Vérifier votre profil informatique pour assurer que vos ports USB sont 2,0
Les Conditions de Système de fenêtres PC avec USB 2,0 Windows de port 7 ; Windows Vista ; ou Windows XP Maison ou Professionnel avec
le Pack de Service 3 ou plus tard iTunes 10,2 ou plus tard recommandé (libère le téléchargement de www.itunes.com/download) l'accès à
Internet de compte de Magasin d'iTunes
Ici: http://www.apple.com/ipad/specs/
Carolyn

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Emulation d'un port com via un port USB en LabView

Bonjour,
Dans le cadre d'un projet, un FPGA (vertex V6) m'envoie des trames de données à interpréter dans LabView. Le soucis qui se pose est le suivant, voulant traiter les données dans LabView, comment est-ce que je peux paramétrer le NI-VISA pour recevoir les trames ?
Le soucis réside dans le fait que mon matériel FPGA n'a pas d'identifiant propre et que je n'arrive pas à le configurer proprement . Doit-je passer par un adaptateur USB-Série ou bien existe-t'il une solution purement logicielle ?
Merci d'avance.
Résolu !
Accéder à la solution.

Bonjour Sylvain_j05,
Le driver VISA propose un jeu de fonctions haut niveau qui permettent d'appeler des fonctions bas niveaux. Si vous utilisez un port USB en partant de votre PC, vous devrez avoir également un port USB disponible sur votre matériel contenant le FPGA et permettant de récupérer ses valeurs. Sinon, un adaptateur Série-USB peut être envisagé s'il n'y a qu'un port série disponible sur votre matériel.
Vous pouvez également essayer un adaptateur USB-Série sur votre PC (si ce dernier ne dispose pas de port série directement intégré) qui vous permettra d'avoir des ports série directement disponibles depuis votre programme sous LabVIEW.
Exemple d'adaptateurs existants : NI USB-232, NI USB-232/2, NI USB-232/4
N'hésitez pas à fournir davantage d'informations et notamment à répondre aux questions d'Helmut O'Brian.
Cordialement,
Jérémy C.
National Instruments France
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Travaux Pratiques d'initiation à LabVIEW et à la mesure
Du 2 au 23 octobre, partout en France

IMac has stopped charging via the keyboard USB port when sleeping - why?

I have a 2008 model 2.8GHz iMac with standard size aliminium keyboard. Historically, I have plugged my iPhone in to the USB port of the aliminium keyboard via the standard iPhone cable and when I put the iMac to sleep it continues to charge the iPhone.
However, the keyboard USB port no longer keeps charging the iPhone when I put the iMac to sleep. The USB ports on the back still do, but not those on the keyboard. Has anyone else encountered this and found a solution?

Although I have never connected my iPod to the keyboard in the past, I can confirm this behavior. Previously my Mac was an Early 2006 iMac Core Duo with the white plastic Apple Keyboard, so the USB hub in the keyboard was USB 1.1 and not recommended for iPods. Now I have a new Early 2009 Mac mini with the aluminum Apple Keyboard with Numeric Keypad with the USB 2.0 hub.
I can confirm that, based on the messages/symbols displayed on the iPod;
1. an iPod connected to the USB 2.0 hub in the Apple Keyboard charges when the Mac is awake.
2. an iPod connected to the USB 2.0 hub in the Apple Keyboard is ejected and no longer charges when the Mac is asleep.
3. an iPod connected to a 3rd party, non-powered, USB 2.0 hub connected directly to a Mac USB port is ejected but continues to charge when the Mac is put to sleep.
4. an iPod connected directly to a Mac USB port is ejected but continues to charge when the Mac is put to sleep.
However, Benjamin, if you read the the 3rd comment from the bottom, of the discussion thread to which you have linked, the poster states that Apple engineers have confirmed to him that;
1. with Mac OS X 10.5.6 a new power management scheme was implemented.
2. an iPod connected to the USB 2.0 hub in the Apple Keyboard is ejected and no longer charges when the Mac is asleep, is now correct behavior under the new power management scheme.
The drawback is that folks in that thread are reporting that not only does the iPod not charge, but that it is drained of power.

Ipod touch 4g wont charge via wall or usb plug? how can I fix this

My ipod touch 4g all of a sudde wont connect to chargers for more than a few second and my headphones keep disconnecting. I havent dropped it of anything, I was just using facetime when it happened. What could of caused this and how can I fix it? Please help!

- See:
iPod touch: Hardware troubleshooting
- Try another cable
- Try another charging source
- Look at the dock connector on the iPod. Look for abnormalities like bent or corroded contacts, cracked or broken plastic.
- Make an appointment at the Genus Bar of an Apple store.
Apple Retail Store - Genius Bar

IPAD 2 Won't Charge on USB port on my laptop, my desktop Mac but will charge via the wall plug

I am confused on what to do with my IPAD 2. It won't charge via my USB Port on my PC that I travel with. Also I just purchased a new desktop Mac and it will not charge on that USB port either. But it will charge via the Wall Plug that came with it. I am worried when I travel to different countries to use the wall plug. I have an adapter to switch power. I am from Canada and travel oversees where the power is 240 vs the 120 at home. If I use my plug adapter and plug in my ipad to the wall Will I destroy the battey in my IPAD 2. I love my ipad to travel with but it is very frustrating when it will not charge on my PC or on the airplane. Then I am afraid to use the wall plug in the airport because of the difference in power. Would really appreciate some help here because I am oversees 2 weeks a month and only get a couple days use of my IPAD. I have all my books and everything on it and need to be able to recharge it. Does anyone have any suggestions?
Thanks
Confused!!!!

For better future reference, you should be aware that the voltage means nothing when it comes to charging power. All that that is telling you is that the Power Adapter will work across that voltage range, i.e., you don't need a transformer to plug it into the outlet (although you may need different plugs, which is a separate topic).
What matters is the amperage (A) and the power in watts (W). The Power Adapter puts out 2 A @ 5 VDC (volts DC), which means it's producing 10 watts of power. It will output that across the entire voltage range.
A high-power USB port on a PC will put out 0.5A @ 5VDC, or 2.5 W. Be aware that not all of the ports on any given PC are likely to be putting out even that much power, at may well be putting out less than half as much. That's why you'll often see the "Not Charging" when plugged into a USB port, especially on Windoze laptops, and why it will charge very slowly even when it works.
FYI, the charger which is sold with the iPhone looks identical, is called the same thing, but only puts out 1A. It will work on the iPad but will charge more slowly. By that same token, the iPad charger will charge an iPhone just fine, it will just charge faster.

HT1296 What is causing my iPad 3 not to be charging via USB, even if I connect it to a USB 3.0 port?

What is causing my iPad 3 not to be charging via USB, even if I connect it to a USB 3.0 port?

iPad Charging
"The fastest way to charge your iPad is with the included 10W USB Power Adapter.
iPad will also charge, although more slowly, when attached to a computer with a high-power USB port (many recent Mac computers) or with an iPhone Power Adapter.
When attached to a computer via a standard USB port (most PCs or older Mac computers) iPad will charge, but only when it's in sleep mode.
Make sure your computer is on while charging iPad via USB. If iPad is connected to a computer that’s turned off or is in sleep or standby mode, the iPad battery will continue to drain."

My iPhone 5 suddenly stopped getting charged via USB port.

Does anyone know how to reset this so I can start charging via USB port again?

Hello beenafromgbr,
Thanks for using Apple Support Communities.
For more information on this, take a look at:
Troubleshooting iPhone, iPad, and iPod touch accessories.
http://support.apple.com/kb/ts2634
Best of luck,
Mario

5G Video iPOD stopped charging via USB: can someone help?

I bought 5G video iPOD last month. After about a month of charging via USB 2.0 port on WinXP desktop, iPOD no longer charges with USB port. If I connect it to desktop, it syncs songs and shows its charging but in fact it does not charge. As it can't sleep, its loosing power. If I hook it up in the night, its discharged in the morning.
I tried to charge it in the car (with car charger), iPOD charges fine. I have tried to change ports, tried different computer (laptop) and also sent iPOD for service, NOTHING HELPS!
I sent it for repair to Apple, but i got it back in 1 week saying its is perfect condition and no other details. (Very disappointed with Apple's lack of service)
Right now, I am stuck with iPOD not charging with any USB port. How do I solve this? Can the usb ports suddenly become low powered from high powered? Please advice.
Compaq with Intel Windows XP
Compaq with Intel Windows XP XP Desktop
Compaq with Intel Windows XP

I tried a friend's usb cable and that worked! I was able to charge iPOD thru usb wit it.

Takes longer to charge via magnetic charger than USB

I noticed that it takes longer to charge via the magnetic charger than the USB port. Also, with the magnetic, the phone sometimes discharge faster than it's charging.

Ok but where are you connecting the magnetic cable, are you connecting it to a computer or a wall charger, the magnetic cable has to be connected to a wall charger for it work properly, its the same cable that its in the dock and if you check the manual it does specify to connect it to a wall charger
"I'd rather be hated for who I am, than loved for who I am not." Kurt Cobain (1967-1994)

Connected as installer when charging in car audio USB port.

Love my S5 but this is annoying. Connect phone to Sony car deck via USB to charge. When using Bluetooth listen to music keeps connecting as installer. Will pause music and make the beeping sound. Will repeat this process every few minutes. Any way to stop this? Have tried both with USB debugging one and off. Won't let me choose to connect as media device just go back to installer.

Can you just charge it with a regular car charger and not use USB? I never charge my phones in my car that way, I only use the USB port for memory sticks but I think my manual says the USB is not for charging so maybe yours is different. Mary

TS2634 i have a ipad gen1 refurbished the wall usb charger keeps saying charging is not supported with this accesory and has taken 24 hrs to charge half the battery and this is a factory charger that uses the usb port whats wrong here help please

i just purchased a refurbished ipad gen 1 when i pluged in the wall charger with the usb cable a window came up and said (charging not supported with this accesory) the battry was almost dead so i pluged in the wall charger and
the battery has been charging for 24 hrs and is only 50%charged it is the factory use charger for this unit why does this error come up and why is it taking so long the software is up to date

Not normal. Take it to an Apple Store for evaluation.
Make a Genius Bar Reservation
http://www.apple.com/retail/geniusbar/
The quickest way (and really the only way) to charge your iPad is with the included 10W or 12W USB Power Adapter. iPad will also charge, although more slowly, when attached to a computer with a high-power USB port (many recent Mac computers) or with an iPhone Power Adapter (5W). When attached to a computer via a standard USB port (2.5W, most PCs or older Mac computers) iPad will charge very slowly (but iPad indicates not charging). Make sure your computer is on while charging iPad via USB. If iPad is connected to a computer that’s turned off or is in sleep or standby mode, the iPad battery will continue to drain.
Apple recommends that once a month you let the iPad fully discharge & then recharge to 100%.
How to Calibrate Your Mac, iPhone, or iPad Battery
http://www.macblend.com/how-to-calibrate-your-mac-iphone-or-ipad-battery/
At this link http://www.tomshardware.com/reviews/galaxy-tab-android-tablet,3014-11.html , tests show that the iPad 2 battery (25 watt-hours) will charge to 90% in 3 hours 1 minute. It will charge to 100% in 4 hours 2 minutes. The new iPad has a larger capacity battery (42 watt-hours), so using the 10W charger will obviously take longer. If you are using your iPad while charging, it will take even longer. It's best to turn your new iPad OFF and charge over night. Also look at The iPad's charging challenge explained http://www.macworld.com/article/1150356/ipadcharging.html
Also, if you have a 3rd generation iPad, look at
Apple: iPad Battery Nothing to Get Charged Up About
http://allthingsd.com/20120327/apple-ipad-battery-nothing-to-get-charged-up-abou t/
Apple Explains New iPad's Continued Charging Beyond 100% Battery Level
http://www.macrumors.com/2012/03/27/apple-explains-new-ipads-continued-charging- beyond-100-battery-level/
New iPad Takes Much Longer to Charge Than iPad 2
http://www.iphonehacks.com/2012/03/new-ipad-takes-much-longer-to-charge-than-ipa d-2.html
Apple Batteries - iPad http://www.apple.com/batteries/ipad.html
Extend iPad Battery Life (Look at pjl123 comment)
https://discussions.apple.com/thread/3921324?tstart=30
New iPad Slow to Recharge, Barely Charges During Use
http://www.pcworld.com/article/252326/new_ipad_slow_to_recharge_barely_charges_d uring_use.html
Tips About Charging for New iPad 3
http://goodscool-electronics.blogspot.com/2012/04/tips-about-charging-for-new-ip ad-3.html
How to Save and Prolong the battery life of your new ipad
https://discussions.apple.com/thread/4480944?tstart=0
Prolong battery lifespan for iPad / iPad 2 / iPad 3: charging tips
http://thehowto.wikidot.com/prolong-battery-lifespan-for-ipad
iPhone, iPod, Using the iPad Charger
http://support.apple.com/kb/HT4327
Install and use Battery Doctor HD
http://itunes.apple.com/tw/app/battery-doctor-hd/id459702901?mt=8
To Extend a Device’s Battery Life, Get to Know It Better
http://tinyurl.com/b67c7xz
iPad Battery Replacement
http://www.apple.com/batteries/replacements.html
In rare instances when using the Camera Connection Kit, you may notice that iPad does not charge after using the Camera Connection Kit. Disconnecting and reconnecting the iPad from the charger will resolve this issue.
 Cheers, Tom

IPad doesn't charge via third party/unofficial USB cables

This is probably said elsewhere but I've realised that my pad will NOT charge via some third party USB cables. It will transfer data and sync with iTunes but will not give any charge either via USB to computer (which is normal as the output generally isn't powerful enough on a laptop) NOR will it charge when the USB is used with the official Apple plug. I need to use the official USB leads with the plug for it to charge.

The quickest way (and really the only way) to charge your iPad is with the included 10W USB Power Adapter. iPad will also charge, although more slowly, when attached to a computer with a high-power USB port (many recent Mac computers) or with an iPhone Power Adapter (5W). When attached to a computer via a standard USB port (most PCs or older Mac computers) iPad will charge very slowly (but iPad indicates not charging). Make sure your computer is on while charging iPad via USB. If iPad is connected to a computer that’s turned off or is in sleep or standby mode, the iPad battery will continue to drain.
Apple recommends that once a month you let the iPad fully discharge & then recharge to 100%.
At this link http://www.tomshardware.com/reviews/galaxy-tab-android-tablet,3014-11.html , tests show that the iPad 2 battery (25 watt-hours) will charge to 90% in 3 hours 1 minute. It will charge to 100% in 4 hours 2 minutes. The new iPad has a larger capacity battery (42 watt-hours), so using the 10W charger will obviously take longer. If you are using your iPad while charging, it will take even longer. It's best to turn your new iPad OFF and charge over night. Also look at The iPad's charging challenge explained http://www.macworld.com/article/1150356/ipadcharging.html
Also, if you have a 3rd generation iPad, look at
Apple: iPad Battery Nothing to Get Charged Up About
http://allthingsd.com/20120327/apple-ipad-battery-nothing-to-get-charged-up-abou t/
Apple Explains New iPad's Continued Charging Beyond 100% Battery Level
http://www.macrumors.com/2012/03/27/apple-explains-new-ipads-continued-charging- beyond-100-battery-level/
New iPad Takes Much Longer to Charge Than iPad 2
http://www.iphonehacks.com/2012/03/new-ipad-takes-much-longer-to-charge-than-ipa d-2.html
Prolong battery lifespan for iPad / iPad 2 / iPad 3: charging tips
http://thehowto.wikidot.com/prolong-battery-lifespan-for-ipad
 Cheers, Tom

Will iPod Charge via USB without.....

Will iPod charge via USB without the computer being on? It was a question I had because if the computer does not need to on... then I can plug it into any computer that has a USB port. I would like to know if the computer is needed to be on... because to be honest, I don't want have to turn on my computer everytime to just charge my iPod.
Right now I am using an old adapter from my previous iPod to charge it... but the problem is me, my mom, and my bro all need to share that charger and tonight, my brother needed the cable to transfer more music but he couldn't because I was using the cable... :-\

Ok... Um... I had an old iPod with the buttons still... not on the click wheel. Back then they came with chargers... so I just use the cord and charger that came with that. But when I got my new 5G I gave my old iPod to my bro... and thats his cord he needs to use for his iPod... to transfer music and what not. I should just buy a new adapter that compatible with the USB Cord, that way me and mom just use that since she has a nano... and my bro can just keep his cord.
Thanks for your response.

Can only charge ipad 4 with electrical outlet try to charge via a computer with USB or a fax machine nothing please he

Cannot charge ipad 4 buy using the cable provided with purchase. Only way of charging is via electrical outlet. Can someone please advise

The quickest way (and really the only way) to charge your iPad is with the included 10W or 12W (5W on Mini) USB Power Adapter. iPad will also charge, although more slowly, when attached to a computer with a high-power USB port (many recent Mac computers) or with an iPhone Power Adapter (5W). When attached to a computer via a standard USB port (2.5W, most PCs or older Mac computers) iPad will charge very slowly (but iPad indicates not charging). Make sure your computer is on while charging iPad via USB. If iPad is connected to a computer that’s turned off or is in sleep or standby mode, the iPad battery will continue to drain.
Apple recommends that once a month you let the iPad fully discharge & then recharge to 100%.
How to Calibrate Your Mac, iPhone, or iPad Battery
http://www.macblend.com/how-to-calibrate-your-mac-iphone-or-ipad-battery/
At this link http://www.tomshardware.com/reviews/galaxy-tab-android-tablet,3014-11.html , tests show that the iPad 2 battery (25 watt-hours) will charge to 90% in 3 hours 1 minute. It will charge to 100% in 4 hours 2 minutes. The new iPad has a larger capacity battery (42 watt-hours), so using the 10W charger will obviously take longer. If you are using your iPad while charging, it will take even longer. It's best to turn your new iPad OFF and charge over night. Also look at The iPad's charging challenge explained http://www.macworld.com/article/1150356/ipadcharging.html
Also, if you have a 3rd generation iPad, look at
Apple: iPad Battery Nothing to Get Charged Up About
http://allthingsd.com/20120327/apple-ipad-battery-nothing-to-get-charged-up-abou t/
Apple Explains New iPad's Continued Charging Beyond 100% Battery Level
http://www.macrumors.com/2012/03/27/apple-explains-new-ipads-continued-charging- beyond-100-battery-level/
New iPad Takes Much Longer to Charge Than iPad 2
http://www.iphonehacks.com/2012/03/new-ipad-takes-much-longer-to-charge-than-ipa d-2.html
Apple Batteries - iPad http://www.apple.com/batteries/ipad.html
Extend iPad Battery Life (Look at pjl123 comment)
https://discussions.apple.com/thread/3921324?tstart=30
New iPad Slow to Recharge, Barely Charges During Use
http://www.pcworld.com/article/252326/new_ipad_slow_to_recharge_barely_charges_d uring_use.html
Best Practices for iPad Battery Charging
http://www.ilounge.com/index.php/articles/comments/best-practices-for-ipad-batte ry-charging/
Tips About Charging for New iPad 3
http://goodscool-electronics.blogspot.com/2012/04/tips-about-charging-for-new-ip ad-3.html
How to Save and Prolong the battery life of your new ipad
https://discussions.apple.com/thread/4480944?tstart=0
Prolong battery lifespan for iPad / iPad 2 / iPad 3: charging tips
http://thehowto.wikidot.com/prolong-battery-lifespan-for-ipad
iPhone, iPod, Using the iPad Charger
http://support.apple.com/kb/HT4327
Install and use Battery Doctor HD
http://itunes.apple.com/tw/app/battery-doctor-hd/id459702901?mt=8
To Extend a Device’s Battery Life, Get to Know It Better
http://tinyurl.com/b67c7xz
iPad Battery Replacement
http://www.apple.com/batteries/replacements.html
In rare instances when using the Camera Connection Kit, you may notice that iPad does not charge after using the Camera Connection Kit. Disconnecting and reconnecting the iPad from the charger will resolve this issue.
 Cheers, Tom

Charging via USB does Mac need to be out of sleep

When I charge via USB I think I read in the manual that the Mac needs not to be in sleep mode for it to charge - is that right? I have my Mac set for sleep at 30 minutes, although this often doesn't work anyway but am in the habit of just hitting a Quickeys key to sleep the computer. I want to make sure I'm charging right so I get the best life out of the batter that's possible.

Yes, that's correct. In sleep mode the USB ports are not powered.

Charge via le Port USB

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