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 < usrp-users@lists.ettus.com> 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 > USRP-users@lists.ettus.com > http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com >
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