Hello,
Please help me with the following problem. I am not much of a
hardware-expert, but till now I was able to resolve quite all of my
BeagleBone Black related problems with the extensive information available
online. Only with this problem I am now stuck for days...
I got a custom (not by me) made board providing a USB-Hub (from SMSC) and a
USB-to-RS485 (FTDI) converter. When I connect it to the the Beaglebone
Black on its USB-Host interface I constantly get messages like the
following, with the device number counting up forever:
> [ 17.600794] usb 1-1: new high-speed USB device number 25 using musb-hdrc
> [ 17.673073] hub 1-0:1.0: unable to enumerate USB device on port 1
>
Also no leds are turning on on the custom board. The Beaglebone is running
on Debian with the following kernel - but I also tried without success
another Beaglebone Black with a more recent kernel.
root@debian:~# uname -a
Linux debian 3.8.13-bone67 #1 SMP Wed Sep 24 18:32:44 UTC 2014 armv7l
GNU/Linux
When I connect the same board via USB to a Linux laptop, it works perfectly
fine with the following messages, including the custom boards' leds turning
on:
> usb 1-3: new high-speed USB device number 3 using ehci-pci
>
usb 1-3: New USB device found, idVendor=0424, idProduct=2514
>
usb 1-3: New USB device strings: Mfr=0, Product=0, SerialNumber=0
>
hub 1-3:1.0: USB hub found
> hub 1-3:1.0: 4 ports detected
> usb 1-3.4: new full-speed USB device number 4 using ehci-pci
> usb 1-3.4: New USB device found, idVendor=0403, idProduct=6015
> usb 1-3.4: New USB device strings: Mfr=1, Product=2, SerialNumber=3
> usb 1-3.4: Product: FT230X Basic UART
> usb 1-3.4: Manufacturer: FTDI
> ...
>
Also on a Windows Machine the board works fine. Results of usbview.exe:
> [Port2] : Generic USB Hub
>
External Hub:
> USB#VID_0424&PID_2514#6&109c578c&0&2#{f18a0e88-c30c-11d0-8815-00a0c906bed8}
>
Is Port User Connectable: yes
> Is Port Debug Capable: no
> Companion Port Number: 0
> Companion Hub Symbolic Link Name:
> Protocols Supported:
> USB 1.1: yes
> USB 2.0: yes
> USB 3.0: no
>
Hub Power: Self Power
> Hub type: USB 2.0 Hub
> Number of Ports: 4
> Power switching: Individual
> Compound device: Yes
> Over-current Protection: Individual
>
High speed capable: Yes
> High speed: Yes
> Multiple transaction translations capable: Yes
> Performs multiple transaction translations simultaneously: Yes
> Hub wakes when device is connected: No
> Hub is bus powered: No
> Hub is root: No
>
---===>Device Information<===---
> ConnectionStatus:
> Current Config Value: 0x01 -> Device Bus Speed: High (is not
> SuperSpeed or higher capable)
> Device Address: 0x02
> Open Pipes: 1
>
===>Device Descriptor<===
> bLength: 0x12
> bDescriptorType: 0x01
> bcdUSB: 0x0200
> bDeviceClass: 0x09 -> This is a HUB Device
>
bDeviceSubClass: 0x00
> bDeviceProtocol: 0x02
> bMaxPacketSize0: 0x40 = (64) Bytes
> idVendor: 0x0424 = SMSC
> idProduct: 0x2514
> bcdDevice: 0x0BB3
> iManufacturer: 0x00
> iProduct: 0x00
>
iSerialNumber: 0x00
> bNumConfigurations: 0x01
> ---===>Open Pipes<===---
> ===>Endpoint Descriptor<===
> bLength: 0x07
> bDescriptorType: 0x05
> bEndpointAddress: 0x81 -> Direction: IN - EndpointID: 1
> bmAttributes: 0x03 -> Interrupt Transfer Type
>
wMaxPacketSize: 0x0001 = 1 transactions per microframe,
> 0x01 max bytes
> bInterval: 0x0C
> ---===>Full Configuration Descriptor<===---
> ===>Configuration Descriptor<===
> bLength: 0x09
> bDescriptorType: 0x02
> wTotalLength: 0x0029 -> Validated
> bNumInterfaces: 0x01
> bConfigurationValue: 0x01
>
iConfiguration: 0x00
> bmAttributes: 0xE0 -> Self Powered
> -> Remote Wakeup
> MaxPower: 0x01 = 2 mA
> ===>Interface Descriptor<===
> bLength: 0x09
> bDescriptorType: 0x04
> bInterfaceNumber: 0x00
> bAlternateSetting: 0x00
> bNumEndpoints: 0x01
> bInterfaceClass: 0x09 -> HUB Interface Class
>
bInterfaceSubClass: 0x00
> bInterfaceProtocol: 0x01
> iInterface: 0x00
> ===>Endpoint Descriptor<===
> bLength: 0x07
> bDescriptorType: 0x05
> bEndpointAddress: 0x81 -> Direction: IN - EndpointID: 1
> bmAttributes: 0x03 -> Interrupt Transfer Type
>
wMaxPacketSize: 0x0001 = 1 transactions per microframe,
> 0x01 max bytes
>
bInterval: 0x0C
> ===>Interface Descriptor<===
> bLength: 0x09
> bDescriptorType: 0x04
> bInterfaceNumber: 0x00
> bAlternateSetting: 0x01
> bNumEndpoints: 0x01
> bInterfaceClass: 0x09 -> HUB Interface Class
> bInterfaceSubClass: 0x00
>
bInterfaceProtocol: 0x02
> iInterface: 0x00
> ===>Endpoint Descriptor<===
> bLength: 0x07
> bDescriptorType: 0x05
> bEndpointAddress: 0x81 -> Direction: IN - EndpointID: 1
> bmAttributes: 0x03 -> Interrupt Transfer Type
> wMaxPacketSize: 0x0001 = 1 transactions per microframe,
> 0x01 max bytes
> bInterval: 0x0C
>
If I plug in a ready-made powered USB-Hub into my Beaglebone, it's also
working without problems:
> [ 1011.864369] usb 1-1: new high-speed USB device number 79 using musb-hdrc
> [ 1011.993478] usb 1-1: New USB device found, idVendor=04b4, idProduct=6560
> [ 1012.003654] usb 1-1: New USB device strings: Mfr=0, Product=0,
> SerialNumber=0
> [ 1012.024643] hub 1-1:1.0: USB hub found
> [ 1012.043653] hub 1-1:1.0: 4 ports detected
>
Only my custom board doesn't seem to work. Trying to compare the outputs of
"usbview.exe" I found the following differences between the
"ready-madepowered USB-Hub" and the "custom board": (ignoring the obviously
different idVendor, idProduct and bcdDevice values)
Ready-madepowered USB-Hub:
> Compound device: No
>
MaxPower: 0x32 = 100 mA
>
Custom board:
> Compound device: Yes
> MaxPower: 0x01 = 2 mA
>
Is it a power supply problem? How can I solve the problem? All your
feedback and hints are very much appreciated.
Best regards,
Stefan
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