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Re: Phase Synchronize 2 USRP N200 w/ SBX cards

From: Marcus D. Leech
Subject: Re: Phase Synchronize 2 USRP N200 w/ SBX cards
Date: Tue, 15 Jun 2021 11:33:41 -0400
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.7.0

On 06/15/2021 09:19 AM, Skyvalakis Konstantinos wrote:

    t1 = self.sink.get_time_now(0)
    t2 = self.sink.get_time_now(1)
    t3 = self.source.get_time_now(0)
    t4 = self.source.get_time_now(1)


Shouldn't t1 be equal with t2 and t3 equal with t4?
Not in any universe I'm aware of.  Those instructions take a finite amount of time to execute, INCLUDING bus-transaction time.
  There's no way for that to complete in less than half a clock tick at the clock rate of the B200.

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