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Move code into .cpp for tiny code size improvement.

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This commit is contained in:
Jared Boone 2016-02-03 22:47:44 -08:00
parent af8c9609a8
commit 20137db8d0
2 changed files with 10 additions and 8 deletions
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9
firmware/baseband/dsp_demodulate.cpp
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@ -137,5 +137,14 @@ buffer_s16_t FM::execute(
return { dst.p, src.count, src.sampling_rate }; return { dst.p, src.count, src.sampling_rate };
} }
void FM::configure(const float sampling_rate, const float deviation_hz) {
/*
* angle: -pi to pi. output range: -32768 to 32767.
* Maximum delta-theta (output of atan2) at maximum deviation frequency:
* delta_theta_max = 2 * pi * deviation / sampling_rate
*/
k = static_cast<float>(32767.0f / (2.0 * pi * deviation_hz / sampling_rate));
}
} }
} }

9
firmware/baseband/dsp_demodulate.hpp
View File

@ -55,14 +55,7 @@ public:
const buffer_s16_t& dst const buffer_s16_t& dst
); );
void configure(const float sampling_rate, const float deviation_hz) { void configure(const float sampling_rate, const float deviation_hz);
/*
* angle: -pi to pi. output range: -32768 to 32767.
* Maximum delta-theta (output of atan2) at maximum deviation frequency:
* delta_theta_max = 2 * pi * deviation / sampling_rate
*/
k = static_cast<float>(32767.0f / (2.0 * pi * deviation_hz / sampling_rate));
}
private: private:
complex16_t::rep_type z_ { 0 }; complex16_t::rep_type z_ { 0 };