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Multiple AM modes selection in application API.

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This commit is contained in:
Jared Boone 2016-01-30 19:03:32 -08:00
parent a1e1677b8b
commit a97cd642ac
3 changed files with 40 additions and 5 deletions
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20
firmware/application/analog_audio_app.cpp
View File

@ -48,7 +48,7 @@ AnalogAudioModel::AnalogAudioModel(ReceiverModel::Mode mode) {
break; break;
case ReceiverModel::Mode::AMAudio: case ReceiverModel::Mode::AMAudio:
configure_am(); configure_am(0);
break; break;
default: default:
@ -98,13 +98,25 @@ void AnalogAudioModel::configure_wfm() {
clock_manager.set_base_audio_clock_divider(1); clock_manager.set_base_audio_clock_divider(1);
} }
void AnalogAudioModel::configure_am() { struct AMMode {
const fir_taps_complex<64> channel;
const AMConfigureMessage::Modulation modulation;
};
static constexpr std::array<AMMode, 3> am_mode_configs { {
{ taps_6k0_dsb_channel, AMConfigureMessage::Modulation::DSB },
{ taps_2k8_usb_channel, AMConfigureMessage::Modulation::SSB },
{ taps_2k8_lsb_channel, AMConfigureMessage::Modulation::SSB },
} };
void AnalogAudioModel::configure_am(const size_t index) {
const auto config = am_mode_configs[index];
const AMConfigureMessage message { const AMConfigureMessage message {
taps_6k0_decim_0, taps_6k0_decim_0,
taps_6k0_decim_1, taps_6k0_decim_1,
taps_6k0_decim_2, taps_6k0_decim_2,
taps_2k8_usb_channel, config.channel,
AMConfigureMessage::Modulation::SSB, config.modulation,
audio_12k_hpf_300hz_config audio_12k_hpf_300hz_config
}; };
shared_memory.baseband_queue.push(message); shared_memory.baseband_queue.push(message);

2
firmware/application/analog_audio_app.hpp
View File

@ -32,7 +32,7 @@ public:
private: private:
void configure_nbfm(const size_t index); void configure_nbfm(const size_t index);
void configure_wfm(); void configure_wfm();
void configure_am(); void configure_am(const size_t index);
}; };
namespace ui { namespace ui {

23
firmware/common/dsp_fir_taps.hpp
View File

@ -189,6 +189,29 @@ constexpr fir_taps_real<32> taps_6k0_decim_2 {
} }, } },
}; };
constexpr fir_taps_complex<64> taps_6k0_dsb_channel {
.pass_frequency_normalized = 3000.0f / 12000.0f,
.stop_frequency_normalized = 3300.0f / 12000.0f,
.taps = { {
{ -70, 0 }, { -142, 0 }, { 121, 0 }, { 90, 0 },
{ -134, 0 }, { -136, 0 }, { 200, 0 }, { 170, 0 },
{ -278, 0 }, { -209, 0 }, { 378, 0 }, { 251, 0 },
{ -505, 0 }, { -294, 0 }, { 665, 0 }, { 336, 0 },
{ -868, 0 }, { -378, 0 }, { 1131, 0 }, { 417, 0 },
{ -1479, 0 }, { -453, 0 }, { 1965, 0 }, { 484, 0 },
{ -2698, 0 }, { -510, 0 }, { 3967, 0 }, { 528, 0 },
{ -6829, 0 }, { -540, 0 }, { 20819, 0 }, { 32767, 0 }, /* TODO: Saturated peak! Originally 33312. */
{ 20819, 0 }, { -540, 0 }, { -6829, 0 }, { 528, 0 },
{ 3967, 0 }, { -510, 0 }, { -2698, 0 }, { 484, 0 },
{ 1965, 0 }, { -453, 0 }, { -1479, 0 }, { 417, 0 },
{ 1131, 0 }, { -378, 0 }, { -868, 0 }, { 336, 0 },
{ 665, 0 }, { -294, 0 }, { -505, 0 }, { 251, 0 },
{ 378, 0 }, { -209, 0 }, { -278, 0 }, { 170, 0 },
{ 200, 0 }, { -136, 0 }, { -134, 0 }, { 90, 0 },
{ 121, 0 }, { -142, 0 }, { -70, 0 }, { 0, 0 },
} },
};
// USB AM 2K80J3E emission type /////////////////////////////////////////// // USB AM 2K80J3E emission type ///////////////////////////////////////////
// IFIR prototype filter: fs=12000, pass=3000, stop=3300, decim=1, fout=12000 // IFIR prototype filter: fs=12000, pass=3000, stop=3300, decim=1, fout=12000