Thanks Nick,
That's fine as explanation. I however need a HW clock synchronized to the 10 MHz external reference. I am using some local counters to run timely operations. If not using the 200 MHz clock Is it possible to synchronize the 214 MHz clock to the 10 MHz external reference. Best Regards Cherif ________________________________ From: Nick Foster <[email protected]> Sent: Monday, August 5, 2019 6:33:37 PM To: Cherif Diouf Cc: [email protected] Subject: Re: [USRP-users] 214 MHz ce_clk vs 200 MHz radio_clk, USRP X310 The radio TX frontend backpressures upstream blocks. You don't have to worry about providing samples at the frontend rate. There is no reason to use a 200MHz clock in your block. Remember: if the frontend is operating at 200Msps, then the samples your block is producing must assume a 200Msps sample rate. It doesn't matter at all that the clock driving your block is 214MHz -- that only means that the logic is operating a bit faster. Nick On Mon, Aug 5, 2019 at 8:58 AM Cherif Diouf via USRP-users <[email protected]<mailto:[email protected]>> wrote: ________________________________ Hello guys, I am working with the X310 USRP. I have developed customed RFNoC CEs running at ce_clk which is no more 200 MHz but rather 214 MHz. So my blocks are providing samples to the RF frontends at 214 MSps. Is that right? Then how the operation can be consistent when the sampling rate of the RF frontends is still at 200MSps. Is it possible to synchronize both the 214 MHz and the 200 MHz clocks to the same 10 MHz external reference, or to use the 200 MHz reference clock as my HW blocks main clock? Best Regards Cherif _______________________________________________ USRP-users mailing list [email protected]<mailto:[email protected]> http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com
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