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Remove channel decimation from AMConfigureMessage.

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This commit is contained in:
Jared Boone 2016-01-30 17:21:48 -08:00
parent f82a22dd2c
commit b029bacd8c
4 changed files with 4 additions and 6 deletions
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1
firmware/application/analog_audio_app.cpp
View File

@ -103,7 +103,6 @@ void AnalogAudioModel::configure_am() {
taps_6k0_decim_0,
taps_6k0_decim_1,
taps_6k0_channel,
4,
audio_12k_hpf_300hz_config
};
shared_memory.baseband_queue.push(message);

4
firmware/baseband/proc_am_audio.cpp
View File

@ -66,11 +66,11 @@ void NarrowbandAMAudio::configure(const AMConfigureMessage& message) {
constexpr size_t decim_1_output_fs = decim_1_input_fs / decim_1.decimation_factor;
constexpr size_t channel_filter_input_fs = decim_1_output_fs;
const size_t channel_filter_output_fs = channel_filter_input_fs / message.channel_decimation;
const size_t channel_filter_output_fs = channel_filter_input_fs / channel_filter_decimation_factor;
decim_0.configure(message.decim_0_filter.taps, 33554432);
decim_1.configure(message.decim_1_filter.taps, 131072);
channel_filter.configure(message.channel_filter.taps, message.channel_decimation);
channel_filter.configure(message.channel_filter.taps, channel_filter_decimation_factor);
channel_filter_pass_f = message.channel_filter.pass_frequency_normalized * channel_filter_input_fs;
channel_filter_stop_f = message.channel_filter.stop_frequency_normalized * channel_filter_input_fs;
channel_spectrum.set_decimation_factor(std::floor((channel_filter_output_fs / 2) / ((channel_filter_pass_f + channel_filter_stop_f) / 2)));

2
firmware/baseband/proc_am_audio.hpp
View File

@ -40,6 +40,8 @@ public:
private:
static constexpr size_t baseband_fs = 3072000;
static constexpr size_t decim_2_decimation_factor = 4;
static constexpr size_t channel_filter_decimation_factor = 1;
std::array<complex16_t, 512> dst;
const buffer_c16_t dst_buffer {

3
firmware/common/message.hpp
View File

@ -377,13 +377,11 @@ public:
const fir_taps_real<24> decim_0_filter,
const fir_taps_real<32> decim_1_filter,
const fir_taps_real<32> channel_filter,
const size_t channel_decimation,
const iir_biquad_config_t audio_hpf_config
) : Message { ID::AMConfigure },
decim_0_filter(decim_0_filter),
decim_1_filter(decim_1_filter),
channel_filter(channel_filter),
channel_decimation { channel_decimation },
audio_hpf_config { audio_hpf_config }
{
}
@ -391,7 +389,6 @@ public:
const fir_taps_real<24> decim_0_filter;
const fir_taps_real<32> decim_1_filter;
const fir_taps_real<32> channel_filter;
const size_t channel_decimation;
const iir_biquad_config_t audio_hpf_config;
};