[Discuss OpenCPI] Fwd: AD9361 Reference Frequency

From: Davis Hoover <dhoover_at_geontech.com>
Date: Fri, 24 Jan 20 11:37:13 -0500

If ad9361_config_proxy.rcc is the highest-level proxy in an application,
its ad9361_init property (which includes the reference_clk_rate member)
should be set, which is an initial property, meaning it is executes a
runtime callback method when set. That member has a default of 40e6, but
that default can be overridden at runtime.

Radios are intended to have one or more higher-level proxies which
abstracts things like reference_clk_rate, e.g.
fmcomms_2_3_rx.rcc/fmcomms_2_3_tx.rcc, or dig_radio_ctrlr_fmcomms_2_3.rcc.

---------- Forwarded message ---------
From: Brian Padalino <bpadalino_at_gmail.com>
Date: Thu, Jan 23, 2020 at 11:46 PM
Subject: [Discuss OpenCPI] AD9361 Reference Frequency
To: <discuss_at_lists.opencpi.org>


I see in the ad9361_config_proxy.rcc that there is a reference_clk_rate in
an initialization, set to 40MHz which is on all the FMCOMMS boards I've
seen.

If I have a platform with a different reference_clk_rate, what is the
appropriate way to make that change?

Should I modify ad9361_config_proxy to take a parameter which is defaulted
to 40MHz and can be overwritten in the build? Do parameters to RCC's turn
into #define's?

Looking for best practices.

Thanks,
Brian


Received on Fri Jan 24 2020 - 16:37:13 CST