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<DIV>Hi Andrey Sviyazov,</DIV>
<DIV> </DIV>
<DIV>I understand now. </DIV>
<DIV>I have seen the code in UHDDevice.cpp as following:</DIV>
<DIV>const double master_clk_rt = 13e6;</DIV>
<DIV> </DIV>
<DIV>So I have made a mistake. </DIV>
<DIV> </DIV>
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<DIV><SPAN>jiangwy</SPAN></DIV>
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<DIV><B>From:</B> <A href="mailto:andreysviyaz@gmail.com">Andrey
Sviyazov</A></DIV>
<DIV><B>Date:</B> 2013-07-24 12:44</DIV>
<DIV><B>To:</B> <A href="mailto:wyjiang@ljshuoda.com">wyjiang</A></DIV>
<DIV><B>CC:</B> <A href="mailto:umtrx@lists.osmocom.org">umtrx</A></DIV>
<DIV><B>Subject:</B> Re: Re: How to syncronizing two
UmTRXs</DIV></DIV></DIV>
<DIV>
<DIV class=FoxDiv20130724132733495132>
<P dir=ltr>Hi Jiang Wenyi.</P>
<P dir=ltr>System clock of UmTRX is 26 MHz.<BR>And the same for synchronizing
clock I/O.<BR>Thereafter system clock devided by 2 in each UnTRX to get 13 MHz
interleaved I/Q sample clock.</P>
<P dir=ltr>Best regards,<BR>Andrey Sviyazov. <BR>(Sent from
mobile)<BR>24.07.2013 4:42 пользователь "jiangwy" <<A
href="mailto:wyjiang@ljshuoda.com">wyjiang@ljshuoda.com</A>>
написал:<BR>><BR>> Andrey Sviyazov<BR>> <BR>> If I connect X7
between master and slave, then the clock of master is 13MHz and the clock
of slave is 26MHz. Is that right?<BR>> <BR>> Best regards,<BR>>
Jiang Wenyi<BR>> <BR>> From: Andrey Sviyazov<BR>>
Date: 2013-07-23 22:59<BR>> To: wyjiang<BR>>
CC: UmTRX<BR>> Subject: Re: How to syncronizing two UmTRXs<BR>>
Hi Jiang Wenyi.<BR>><BR>> To synchronize clock of several UmTRX you have
to leave one of them in master mode, <BR>> but all others must be
switched to slave mode.<BR>> Master/slave control switch for 26MHz clock is
S3(MHz).<BR>> I/O connector for 26 MHz clock is X7.<BR>> In case of master
mode X7 becomes output and input in case of slave mode.<BR>> To set master
mode turn switch S3 to the downward and to upward for the slave mode.<BR>>
Please find text on the PCB board to be sure.<BR>><BR>> BTW, if you would
like to use external clock source then all of UmTRX's must be in slave
mode, <BR>> i.e. their clock connectors must be inputs.<BR>><BR>>
Best regards,<BR>> Andrey Sviyazov.<BR>><BR>><BR>> 2013/7/23 jiangwy
<<A
href="mailto:wyjiang@ljshuoda.com">wyjiang@ljshuoda.com</A>><BR>>><BR>>>
Hi All,<BR>>> <BR>>> I have two UmTRXs v2. How to make the
clock of them syncronized?<BR>>> <BR>>>
________________________________<BR>>> Jiang
Wenyi<BR>><BR>><BR></P></DIV></DIV></BODY></HTML>