This is merely a historical archive of years 2008-2021, before the migration to mailman3.
A maintained and still updated list archive can be found at https://lists.osmocom.org/hyperkitty/list/UmTRX@lists.osmocom.org/.
Andrey Sviyazov andreysviyaz at gmail.comHi Jiang Wenyi. System clock of UmTRX is 26 MHz. And the same for synchronizing clock I/O. Thereafter system clock devided by 2 in each UnTRX to get 13 MHz interleaved I/Q sample clock. Best regards, Andrey Sviyazov. (Sent from mobile) 24.07.2013 4:42 пользователь "jiangwy" <wyjiang at ljshuoda.com> написал: > > Andrey Sviyazov > > 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? > > Best regards, > Jiang Wenyi > > From: Andrey Sviyazov > Date: 2013-07-23 22:59 > To: wyjiang > CC: UmTRX > Subject: Re: How to syncronizing two UmTRXs > Hi Jiang Wenyi. > > To synchronize clock of several UmTRX you have to leave one of them in master mode, > but all others must be switched to slave mode. > Master/slave control switch for 26MHz clock is S3(MHz). > I/O connector for 26 MHz clock is X7. > In case of master mode X7 becomes output and input in case of slave mode. > To set master mode turn switch S3 to the downward and to upward for the slave mode. > Please find text on the PCB board to be sure. > > BTW, if you would like to use external clock source then all of UmTRX's must be in slave mode, > i.e. their clock connectors must be inputs. > > Best regards, > Andrey Sviyazov. > > > 2013/7/23 jiangwy <wyjiang at ljshuoda.com> >> >> Hi All, >> >> I have two UmTRXs v2. How to make the clock of them syncronized? >> >> ________________________________ >> Jiang Wenyi > > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.osmocom.org/pipermail/umtrx/attachments/20130724/f5119c8b/attachment.htm>