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Re: [Discuss-gnuradio] Massive underruns when transmitting with gr-ieee8
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From: |
Marcus Müller |
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Subject: |
Re: [Discuss-gnuradio] Massive underruns when transmitting with gr-ieee802-11 on an B210 USRP |
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Date: |
Fri, 18 Mar 2016 19:15:18 +0100 |
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User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.1.0 |
What the the other Marcus intended to stress was that you're connected
using USB __2__, which is too slow. Use a USB __3__ host controller.
Sadly, not all work equally well. Generally, if you can, use an Intel
host controller as integrated with many modern mainboards; with my
oldish laptop, I'm having O.K. experiences with a Renesas Technology
Corp. uPD720202 based USB3 Expresscard expansion.
Best regards,
Marcus
On 03/17/2016 07:22 PM, Marcus D. Leech wrote:
> On 03/17/2016 02:13 PM, Gonzalo Arcos wrote:
>> -- Detected Device: B210
>> -- Operating over USB 2.
>> ....
>> ....
>> UHD Warning:
>> The total sum of rates (20.000000 MSps on 1 channels) exceeds the
>> maximum capacity of the connection.
>> This can cause underruns (U).
> I refer you to the above messages^^^^^^^^^^^^^^^^^^
>
> Your B210 is connected via USB, which cannot sustain the required data
> rate.
>
>
>
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