[Discuss-gnuradio] solved - FPGA image E100 not underrun or overrun but "SSS"

[Sameh Yassin]

ASA,

The problem occured due to the use of wrong source files to generate the FPGA image. I discovered the problem by  using the pre built images at http://code.ettus.com/redmine/ettus/projects/uhd/wiki/UHD_build.  The 'S' problem occured when I used the prebuilt image at 003.004.000. So, I used the version 003.004.001 and everything is just great.   

 

Regards,
S. Yassin
HW Engineer
DLECS

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From: wayne roberts <address@hidden>
To: Philip Balister <address@hidden>
Cc: Sameh Yassin <address@hidden>; GNURADIO <address@hidden>
Sent: Thursday, April 19, 2012 5:47 PM
Subject: Re: [Discuss-gnuradio] problem while running tx_waveforms

With tx_waveforms on B100, it starts to print 'U' at 6Msps.
But CPU consumption is only in 20% to 25% range.
Its fine at 5Msps and lower.

On Thu, Apr 19, 2012 at 8:17 AM, Philip Balister <address@hidden> wrote:

On 04/19/2012 10:28 AM, Sameh Yassin wrote:
> Dear sir,
>
> When I'm using the image that is created when building UHD with compatibilty version 9  everything is okay. The problem occurs when I  compile the FPGA code from source using the command "make -f E100 bin". After the "generate programming file" is finished successfully, I copy the output image u1e.bin and then rename it to usrp_e100_fpga_v2.bin and use it.
> Therefore, I still need to what does "S" stands for because I will modify the FPGA code later not just recopmile.

What version of UHD are you using? I have seen the S in "older" UHD's on
the E100 and cleared the problem up by using the most recent UHD release
(with corresponding FPGA images).

If you are doing custom FPGA work, you should start from the most recent
release.

Philip

>
>
> Regards,
>  S. Yassin
>  Research assistant
>  DLECS
>
>  ECE departmentFrom: Philip Balister <address@hidden>
>
> To: Sameh Yassin <address@hidden>
> Cc: "address@hidden" <address@hidden>
> Sent: Thursday, April 19, 2012 3:19 PM
> Subject: Re: [Discuss-gnuradio] problem while running tx_waveforms
>
> On 04/19/2012 08:55 AM, Sameh Yassin wrote:
>> Hi all,
>> When running the example tx_waveforms.cpp on the E100 usrp I get continuos"sssssssssss" on the terminal
>> I know that u stands for underrun and o stands for overrun but what does an "s" mean
>
> Upgrade to the latest image that was announced on the list a few weeks
> ago. That should clear up the 'S' problems.
>
> Philip
>
>>
>> Regards,
>> S. Yassin
>> Research assistant
>> DLECS
>> ECE department
>>
>> CAIRO university
>>
>>
>>
>>
>> _______________________________________________
>> Discuss-gnuradio mailing list
>> address@hidden
>> https://lists.gnu.org/mailman/listinfo/discuss-gnuradio

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