Re: GRC max sample rate

[Koyel Das (Vehere)]

Hi Kyeong,

Will there be packet drops if USRP source is set at 32 bit complex float in grc when receiving at 100 MSPS each from two channels? That makes 2*100e6*64 (32 bit I and 32 bit Q) = 12800e6 or 12.8 gbps. I am unable to set usrp source block to 16 bit complex as then the usrp source block is not compatible with file sink which doesn’t have option for 16 bit complex. Please help

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From: Discuss-gnuradio <discuss-gnuradio-bounces+koyel.das=vehere.com@gnu.org> on behalf of Koyel Das (Vehere) <koyel.das@vehere.com>
Sent: Friday, July 24, 2020 3:34:29 PM
To: Kyeong Su Shin <ksshin@postech.ac.kr>; GNURadio Discussion List <discuss-gnuradio@gnu.org>
Subject: Re: GRC max sample rate

 

Hi Kyeong,

Ok thanks so much for the information.

Regards,

Koyel 

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From: Kyeong Su Shin <ksshin@postech.ac.kr>
Sent: Friday, July 24, 2020 3:32 PM
To: Koyel Das (Vehere); GNURadio Discussion List
Subject: Re: GRC max sample rate

 

Hello Koyel:

I did one channel with 200 MSPS before, so probably yes (assuming that you are not doing any other processing).

Consider using sc16. Also, you can try using libuhd directly.

Regards,

Kyeong Su Shin

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보낸 사람: Koyel Das (Vehere) <koyel.das@vehere.com> 대신 Discuss-gnuradio <discuss-gnuradio-bounces+ksshin=postech.ac.kr@gnu.org>
보낸 날짜: 2020년 7월 24일 금요일 오후 5:59
받는 사람: GNURadio Discussion List <discuss-gnuradio@gnu.org>
제목: GRC max sample rate

 

Can GRC handle writing data from two channels of USRP at 100 MSPS each to a file in a RAM disk ? I am using 10G server and PCIe cable.

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