Manualy setting r.adc_clk_hz every time

[sr-cdf]

Not a new issue, but I need to tell the system that r.adc_clk_hz = whatever every time it starts.

I've been using 2457600000 Hz, which is the ADC sample rate, divided by the interpolation factor.

I guess it would be nice to extract this from the fpga/rfdc:

r.adc_sample_rate_hz = float(r.rfdc.core.device_info['t224_sample_rate'])*1e6
r.adc_interpolation_factor = float(r.rfdc.core.device_info['t224_dt_adc0_dec_mode'].split('x')[0])
r.adc_clk_hz = r.adc_sample_rate_hz / r.adc_interpolation_factor

or using the higher level functions:

r.adc_sample_rate_hz = r.rfdc.core.get_pll_config(0,'adc')['SampleRate']*1e9
#ah, there is no method to get the interpolation factor.

Not sure what the plan is here.

[jack-h]

Yeah, up to now I've been either setting manually or getting from a config file. But something like this seems like a better idea

On Mon, 15 Apr 2024, 17:05 Sam Rowe, @.***> wrote:

Not a new issue, but I need to tell the system that r.adc_clk_hz = whatever every time it starts.

I've been using 2457600000 Hz, which is the ADC sample rate, divided by the interpolation factor.

I guess it would be nice to extract this from the fpga/rfdc:

r.adc_sample_rate_hz = float(r.rfdc.core.device_info['t224_sample_rate'])*1e6 r.adc_interpolation_factor = float(r.rfdc.core.device_info['t224_dt_adc0_dec_mode'].split('x')[0]) r.adc_clk_hz = r.adc_sample_rate_hz / r.adc_interpolation_factor

or using the higher level functions:

r.adc_sample_rate_hz = r.rfdc.core.get_pll_config(0,'adc')['SampleRate']*1e9

ah, there is no method to get the interpolation factor.

Not sure what the plan is here.

— Reply to this email directly, view it on GitHub https://github.com/realtimeradio/souk-firmware/issues/41, or unsubscribe https://github.com/notifications/unsubscribe-auth/AAKWM7FQBIFJCHSFMC3FHUDY5P3ERAVCNFSM6AAAAABGHU3CSCVHI2DSMVQWIX3LMV43ASLTON2WKOZSGI2DIMBWGE2DKMA . You are receiving this because you are subscribed to this thread.Message ID: @.***>