[USRP-users] uhd_find_devices fails on E100

Philip Balister philip at balister.org
Fri Feb 24 17:54:42 EST 2012


On 02/24/2012 05:33 PM, Ben Hilburn wrote:
> Shutdown your device, unplug power, pull up on the Overo to unplug it from
> the board, then put it back.

Gumstix has a video that will help explain how to mount the Overo unit:

http://www.youtube.com/watch?v=FxxEBn8Z_PA

Philip

> 
> Cheers,
> Ben
> ----------------------------
> Ben Hilburn <http://goo.gl/5DdZ3> @ Ettus Research, LLC<http://www.ettus.com/>
> 
> 
> 
> On Fri, Feb 24, 2012 at 2:18 PM, Ahmed Alsawi <ahmedalsawi2012 at gmail.com>wrote:
> 
>> aActually ,Nothing attached  other than console.
>> about re-seating the overo ,how to do it?
>> thanks
>> On Fri, Feb 24, 2012 at 8:56 PM, Ben Hilburn <ben.hilburn at ettus.com>wrote:
>>
>>> Also, it's very possible that your Overo isn't seated properly.  Will you
>>> shut it down, pull off your Overo, and re-seat it?  Sometimes they get
>>> knocked around during shipping.
>>>
>>> Cheers,
>>>  Ben
>>> ----------------------------
>>> Ben Hilburn <http://goo.gl/5DdZ3> @ Ettus Research, LLC<http://www.ettus.com/>
>>>
>>>
>>>
>>> On Fri, Feb 24, 2012 at 10:04 AM, Ben Hilburn <ben.hilburn at ettus.com>wrote:
>>>
>>>> Ahmed -
>>>>
>>>> It looks like your E100 cannot talk to its own EEPROM.  This is usually
>>>> caused by another device not behaving properly on the i2c bus.
>>>>
>>>> Do you have any peripherals plugged in to your E100? A monitor, for
>>>> example?
>>>>
>>>> If so, will you unplug all peripherals, reboot your E100, and try again?
>>>>
>>>> Cheers,
>>>> Ben
>>>> ----------------------------
>>>> Ben Hilburn <http://goo.gl/5DdZ3> @ Ettus Research, LLC<http://www.ettus.com/>
>>>>
>>>>
>>>>
>>>> On Fri, Feb 24, 2012 at 6:48 AM, Ahmed Alsawi <ahmedalsawi2012 at gmail.com
>>>>> wrote:
>>>>
>>>>> hi all,
>>>>> I working on E100 with official image  UHD 003.004.
>>>>> After booting,When executing uhd_find_devices and uhd_usrp_probe they
>>>>> fail
>>>>> i think uhd_find_devices should have serial number.isn't it?
>>>>> Any idea what is wrong.
>>>>>
>>>>> root at usrp-e1xx:~# uhd_find_devices
>>>>> linux; GNU C++ version 4.5.3 20110311 (prerelease); Boost_104500;
>>>>> UHD_003.004.000-7dc76db
>>>>>
>>>>>  --------------------------------------------------
>>>>> -- UHD Device 0
>>>>> --------------------------------------------------
>>>>> Device Address:
>>>>>     type: e100
>>>>>     node: /dev/usrp_e0
>>>>>     name:
>>>>>     serial:
>>>>>
>>>>> root at usrp-e1xx:~# uhd_usrp_probe
>>>>> linux; GNU C++ version 4.5.3 20110311 (prerelease); Boost_104500;
>>>>> UHD_003.004.000-7dc76db
>>>>>
>>>>> -- Opening device node /dev/usrp_e0...
>>>>> Error: AssertionError: ::ioctl(_node_fd, I2C_RDWR, &data) >= 0
>>>>>   in virtual void i2c_dev_iface::write_i2c(uint8_t, const
>>>>> uhd::byte_vector_t&)
>>>>>   at /home/root/src/uhd.git/host/lib/usrp/e100/e100_ctrl.cpp:148
>>>>>
>>>>>
>>>>> _______________________________________________
>>>>> USRP-users mailing list
>>>>> USRP-users at lists.ettus.com
>>>>> http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com
>>>>>
>>>>>
>>>>
>>>
>>
> 
> 
> 
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