Re: [USRP-users] B210 bypass Tx FIR filter

2019-04-11 Thread Ian Buckley via USRP-users
Yeah, the driver tries to keep the DAC clock close to it’s max legal frequency with the highest possible interpolation ratio from master_clock_rate. That code doesn’t have any API access but I can show Sean how to hack it into UHD if necessary. > On Apr 10, 2019, at 10:57 PM, Julian Arnold via

Re: [USRP-users] B210 bypass Tx FIR filter

2019-04-10 Thread Julian Arnold via USRP-users
Sean, if I remember correctly, the filter configuration (whether or not a filter is bypassed) is determined by the ratio of DAC rate to master-clock rate (the interpolation that needs to happen inside the ad9361) thus, you can only somewhat, indirectly, control it by changing the master-clock

[USRP-users] B210 bypass Tx FIR filter

2019-04-10 Thread S Hamilton via USRP-users
We'd like to bypass the Tx FIR filter and I'm wondering how to go about this using the C++ api. For the filter_base_info class there is the is_bypassed() function to read the state, but no function to set it. Should we be creating a new filter pointer with bypass set, and then using it to