[USRP-users] Disabling CORDIC

Derek Kozel derek.kozel at ettus.com
Wed Jul 26 10:10:18 EDT 2017


Hello Altug,

If you tune using the tune request with a DSP policy of MANUAL and DSP
frequency of 0.0 then yes, that channel's CORDIC will not alter the samples.

A policy of NONE will leave the DSP in the last configured state, so it is
better to be explicit.

Regards,
Derek


On Wed, Jul 26, 2017 at 12:08 PM, altuğ kaya via USRP-users <
usrp-users at lists.ettus.com> wrote:

> Hello everyone,
>
> When the full manual tuning policy is selected and 0 Hz rotation is
> configured:
>
>> tune_request.dsp_freq_policy = uhd::tune_request_t::POLICY_MANUAL;
>> tune_request.dsp_freq = 0.0;
>>
>
>  or when the  policy_none is selected;
>
>> tune_request.dsp_freq_policy = uhd::tune_request_t::POLICY_NONE;
>
>
> Are both RX channels' CORDIC  disabled?
>
> Sincerely,
> Altug
>
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>
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