USB device can not recognized

dongjoon kim
 
Posts: 8
Joined: Tue Apr 26, 2016 2:10 am

USB device can not recognized

Mon Jan 02, 2017 5:17 am

I installed the latest firmware on the board of vocore2 yesterday and successfully updated the AP + STA mode.I have Connected a USB cable to the vocore2 single board to connect the USB memory device.
The data+ on the USB cable was connected to USBDP of the board and the data- cable was attached to the USBDM pin of board. 5V power and GND cable from USB charger is connected to USB female connector.
However, there is no perception and no recognization on the board .If I check the USB cable and the pin socket, I am sure that it is connected exactly the same as the vocore2 manual on the homepage.
Changing the USB cable to another is the same symptom.
Here is my information :
BusyBox v1.23.2 (2016-09-03 09:56:08 CST) built-in shell (ash)

_______ ________ __
| |.-----.-----.-----.| | | |.----.| |_
| - || _ | -__| || | | || _|| _|
|_______|| __|_____|__|__||________||__| |____|
|__| W I R E L E S S F R E E D O M
-----------------------------------------------------
CHAOS CALMER (Chaos Calmer, r49378)
-----------------------------------------------------
* 1 1/2 oz Gin Shake with a glassful
* 1/4 oz Triple Sec of broken ice and pour
* 3/4 oz Lime Juice unstrained into a goblet.
* 1 1/2 oz Orange Juice
* 1 tsp. Grenadine Syrup
-----------------------------------------------------
root@OpenWrt:~#
root@OpenWrt:~#
root@OpenWrt:~#
root@OpenWrt:~# opkg list-installed |grep usb
kmod-ledtrig-usbdev - 3.18.29-1
kmod-usb-core - 3.18.29-1
kmod-usb-ohci - 3.18.29-1
kmod-usb-printer - 3.18.29-1
kmod-usb-storage - 3.18.29-1
kmod-usb2 - 3.18.29-1
libusb-1.0 - 1.0.19-1
usbutils - 007-1

I have already opkg update. Do I need another package installation ?
I do not know why the USB device is not detected.Please reply to any users who have experienced this experience or know how to deal with it.
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noblepepper
 
Posts: 240
Joined: Sat Nov 29, 2014 3:22 pm

Re: USB device can not recognized

Mon Jan 02, 2017 10:58 am

Is anything added to the end of the dmesg output when you plug in the device?

I had a usb drive plugged in when I powered on so when I unplug and replug it I get:

Code: Select all
root@OpenWrt:/# dmesg |grep 'usb '
[    5.960000] phy phy-10120000.usbphy.0: remote usb device wakeup disabled
[    6.010000] usb usb1: no of_node; not parsing pinctrl DT
[    6.120000] usb usb2: no of_node; not parsing pinctrl DT
[    6.340000] usb 1-1: new high-speed USB device number 2 using ehci-platform
[    6.490000] usb 1-1: no of_node; not parsing pinctrl DT
[32966.600000] usb 1-1: USB disconnect, device number 2
[32988.100000] usb 1-1: new high-speed USB device number 3 using ehci-platform
[32988.250000] usb 1-1: no of_node; not parsing pinctrl DT
 


If you don't see this it is in your connections, only +5, data-, data+, gnd are required. USB is very sensitive about it's connections any wires or circuit board traces need to be straight, parallel, and the same length. A USB cable has controlled impedance twisted pairs so they will meet this requirement.

prahjister
 
Posts: 1
Joined: Fri Jan 13, 2017 4:18 am

Re: USB device can not recognized

Fri Jan 13, 2017 4:21 am

+1 for this...not connecting

powered up made 1 change and toast

need a recovery method

cant figure out anyway to recover

FTDI USB

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