I know this is an off-topic, but I need some help on debugging the issue faced on USB to Ethernet design. Hope someone can help me! I have took reference form LAN9500Ai Development board().
Issue:- When Turn on the Power , USB to Ethernet work, and Three LED glow with one of them blinking. After that I removed the Ethernet cable and plug it back then it does not work. ( Sometimes All three LED light still glow even after removing the Ethernet Cable). My schematics is attached.
Schematics details:- D6,D7,D8 and D9 NOT mounted. R33 is Do not Mount Connector J2 comes form PC USB port ( PC USB 5V convert to 3.3V via regulator than 3.3V apply to connector j2) , See attached C2,C3,C4 and C5 Do not Mount.
Unsuccessful solution Tried 1. Mount C2,C3,C4 and C5 and No advantage 2. Remove R36 but no advantage
Successful solution Tried 1. Removed Connector J2 and reinsert then it Works, but again if i remove the Ethernet cord and reinsert it did not work. So every time after removing and reinserting cable i have to follow this
In Schematics IC U3 pin , (manual Reset) , i tried to reset the LAN 9500 chip using this pin , and Chip get reset and it works, but again if i remove the Ethernet cord and reinsert it did not work. So every time after removing and reinserting cable i have to follow this
Please suggest how to resolve this problem, since in hardware i do not have reset control in current PCB version,
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(Schematics broke down to two above image)
Thanks!
Related
Ok, so hoepfully someone can clear this up as I don't yet have my Kaiser (tilt) and am trying to get some accessories.
I previously had a PPC-6700 which synced and charged via a standard mini-USB jack.
I then upgraded to the PPC-6800 which I only had for about a week (had to give it back to my work). With that device there was a different type of usb jack on it that seems to be what the Kaiser also has. Can someone tell me what this is called?
From my recollection however, this slightly different jack would also accept the typical mini-usb plug as i can remember using my PPC-6700 wall charger on it.
So can you use standard USB to mini-USB plugs to interface the Kaiser with either a PC for sync/charge or to a wall-charger? What is the new interface called and what is the point of it?
thanks much!
I may have actually answerd my own question as I have found (I think) the name for this new interface... EXTUSBTM ? Is this correct. And the point is to interface the charger/sync and audio headset together?
If this is all it does then I should be fine using all my old mini-usb plugs for data interface/charging, right?
thx!
Yes, you can use a standard 5 pin mini USB cable. The port is HTC's 11 pin combination sync/charge/audio port. Both their plug and the standard 5 pin mini USB plugs fit and work.
Wikipedia (for once!) isn't too big on details here: http://en.wikipedia.org/wiki/HTC_ExtUSB
But basically, it's got 11 pins to handle audio, power and syncing.
Have a look here for pinouts etc.
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AT$T Cheaped me out again. I only got a standard USB sync cable from them! DoH! lol
Hi all - does anyone know if it's possible to connect the N1 to a PC (to do adb, shell etc) without charging the battery? Reason for question is, I am trying to do some kernel/configuration benchmarking and do not wish to skew the battery usage/uptime figures too much! (fairly theorhetical question, I guess, as I realise accessing the N1 via USB could itself use battery)
I don't believe there is a way to do that. the only way I could think of is to get a usb that can only transfer data and not a charge for the battery.
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Cut up your USB cable and clip the wire attached to pin 1.
Caveat: I haven't tried this but it's certainly possible.
There is such a thing as un-powered usb ports. However, I believe the name is misleading, as in reality they are simply low powered (if memory serves correctly). However, it might be worth looking into if you can't successfully clip the power as in the previous post.
rcxquake said:
There is such a thing as un-powered usb ports. However, I believe the name is misleading, as in reality they are simply low powered (if memory serves correctly). However, it might be worth looking into if you can't successfully clip the power as in the previous post.
Click to expand...
Click to collapse
An unpowered USB hub will still pass power. It just gets a maximum of 5v from the computer so you can't power multiple devices that actually need any substantial amount of power.
A powered USB hub just makes sure that all of the ports get their full 5v.
Hi
I don't know if people realise this but you can modify a generic car charger to automaticlly activate the Navi Panel mode so you don't need to buy the SU400 kit.
You will need a car charger that is capable of suppying 1 amp, to enable fast charging. ( Use an app called Spoon Charge to check) or disassemble the USB Micro A plug and ensure Data- and Data + are soldered together. DO NOT solder Data - and Data + togehter if not already done so this means the device is not capable of supplying 1amp.
If so you should have a unused pin ( this is called the ID pin) solder this along with Data + and Data - to OV.
When the charger is connected it will launch Navi Panle if enabled and turn on bluetooth and pair to a set device.
I will take a pic of the modded plug and post it up. In theory I would assume the same mechanism is used on more than this device.
Wayne
OMG LEGEND bro. lol. Finally someone figured out HOW to do this so you don't have to buy that overpriced HD2 carkit. Thanks. Mod's this should be a sticky.
mods seriously this should be front page news
Are you sure, that this will work? Did you tried it yourself? Cause my CU-S400 is also activaiting the Navipanel even if i don't have plugged in the Charger! So I think that it hasn't anything to do with the mAh-size of the charging unit....
You're right.
Right connections for recognition Car Kit Mode :
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Source.
Hi all
I have samsung galaxy S i9000 and I have bought a chinese USB OTG adaptor that said on the cover it is for:
Samsung i9100/i9220/ Motorola Droid etc
Nokia C6/C3/C7/N8/X3/E7
it has a 5 pin as I think because I see 5 pins in the micro usb and the cable fits perfectly in micro usb of my mobile,
the picture of the cable is exactly similar to this
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Now I'm on rooted stock version of GB 2.3.3 JPJV6 and I have installed the kernel of "USB Host mode driver for Samsung Galaxy S (i9000) "http://forum.xda-developers.com/showthread.php?t=1450298"
I am using OTG cable and the latest "USB Host Controller" app (Ver 0.44)
When the OTG cable is plugged in I am getting a message :
"root hub present, USB host mode is active" and I keep pressing on Refresh button but no matter what I am plugging in, I get nothing (can't detect the flash memory).
As far as I know this component does not need an extra power and it should work when plugged in into the OTG cable, and I know that the usb on my galaxy s can't give power to the thing that is connected unlike the galaxy S2.
What thing can I plug in, that don't need an external power source?
What else do I need to make the OTG cable work and read a flash memory or anything else?
Do I need a powered hub for everything or what please help !
Could any one help me
60 views and no one have the answer !
Because most people never use the host mode feature, myself included.
I understand Note can charge devices such as my Bluetooth micro USB earphones, however i am straggling to get right cable i.e. micro USB to micro USB and perhaps an adaptor on Note 8 to convert it to C type.
Anyone done what i am trying to do?
Use the otg adapter that came in the box
vadimo said:
I understand Note can charge devices such as my Bluetooth micro USB earphones, however i am straggling to get right cable i.e. micro USB to micro USB and perhaps an adaptor on Note 8 to convert it to C type.
Anyone done what i am trying to do?
Click to expand...
Click to collapse
Normally you only need to use the included OTG adapter. Connect it with your note 8 and connect a normal USB cable (USB to micro USB) with the device you want to charge. It should be automatically begin to charge the other device. Maybe you need to pull down the statusbar and tap the "android system charging" notification and tap it. Then it should open the menu you will see on my second screenshot. Select the last entry "charge connected device" and there you go. It should be charge the connected device
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Don't be afraid to hit the "Thanks" button if someone helped you. It don't hurts
Completely forgot I had OTG adaptor, that will the connectivity type issue
Thanks