2010-01-18 05:27:30     Multiple USB device connect support for BF527-Ezkit

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2010-01-18 05:27:30     Multiple USB device connect support for BF527-Ezkit

Vinay Kumar (INDIA)

Message: 84711   

 

Hi,

 

BF527 has only one USB OTG support but I need to connect Multiple USB devices(USB Keyboard, mouse and MSD) at a time, as a solution i tried using USB 2.0 4 port hub. Then i tried to detect the usb device using usb start command it detected the usb device but could not detect it as a mass storage device. what might be the problem. plaese help me.

 

This is error log

 

bfin> usb start

(Re)start USB...

USB:   scanning bus for devices...

      USB device not accepting new address (error=2)

3 USB Device(s) found

       scanning bus for storage devices... 0 Storage Device(s) found

 

 

bfin> usb tree

 

Device Tree:

  1  Hub (12MBit/s, 0mA)

  |   MUSB Root Hub

  |

  +-2  Hub (480MBit/s, 100mA)

    |

    +-3  See Interface (480MBit/s, 0mA)

     

bfin>

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2010-01-18 10:07:46     Re: Multiple USB device connect support for BF527-Ezkit

Robin Getz (UNITED STATES)

Message: 84722   

 

Vinay:

 

The as a host, the blackfin USB does not support hubs - it is only for direct connections to devices. It is expected to fail.

 

-Robin

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