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Xylos (CCIR tones) TX, jammer update, SD card mod load

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Xylos TX (CCIR tones) ;)
Jammer update, still buggy and inefficient
SD card module loader update
This commit is contained in:
furrtek
2016-01-03 07:24:30 +01:00
parent 5a5a4c3525
commit 802ac496e9
28 changed files with 2272 additions and 1143 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
firmware/baseband/Makefile
View File

@@ -140,6 +140,8 @@ CPPSRC = main.cpp \
proc_ais.cpp \
proc_wideband_spectrum.cpp \
proc_tpms.cpp \
proc_afskrx.cpp \
proc_sigfrx.cpp \
dsp_squelch.cpp \
clock_recovery.cpp \
packet_builder.cpp \

73
firmware/baseband/dsp_fir_taps.hpp
View File

@@ -180,6 +180,79 @@ constexpr fir_taps_real<64> taps_64_lp_130_169_tfilter {
} },
};
// 41kHz/70kHz @ 192kHz
// http://t-filter.appspot.com
constexpr fir_taps_real<64> taps_64_lp_410_700_tfilter {
.pass_frequency_normalized = 0.213f,
.stop_frequency_normalized = 0.364f,
.taps = { {
0,
0,
0,
0,
-1,
0,
3,
-3,
-7,
12,
10,
-35,
-3,
79,
-37,
-138,
146,
180,
-361,
-126,
688,
-149,
-1062,
800,
1308,
-1991,
-1092,
3963,
-286,
-7710,
6211,
32368,
32368,
6211,
-7710,
-286,
3963,
-1092,
-1991,
1308,
800,
-1062,
-149,
688,
-126,
-361,
180,
146,
-138,
-37,
79,
-3,
-35,
10,
12,
-7,
-3,
3,
0,
-1,
0,
0,
0,
0
} },
};
/* Wideband audio filter */
/* 96kHz int16_t input
* -> FIR filter, <15kHz (0.156fs) pass, >19kHz (0.198fs) stop

24
firmware/baseband/main.cpp
View File

@@ -57,9 +57,11 @@
#include "proc_am_audio.hpp"
#include "proc_nfm_audio.hpp"
#include "proc_wfm_audio.hpp"
#include "proc_ais.hpp"
//#include "proc_ais.hpp"
#include "proc_wideband_spectrum.hpp"
#include "proc_tpms.hpp"
//#include "proc_tpms.hpp"
#include "proc_afskrx.hpp"
#include "proc_sigfrx.hpp"
#include "clock_recovery.hpp"
#include "packet_builder.hpp"
@@ -356,7 +358,7 @@ void ram_loop_fn(void) {
void wait_for_switch(void) {
memcpy(&ram_loop[0], reinterpret_cast<char*>(&ram_loop_fn), 32);
loop_ptr = reinterpret_cast<fn_ptr>(&ram_loop[0]);
ReadyForSwitchMessage message { true };
ReadyForSwitchMessage message;
shared_memory.application_queue.push(message);
(*loop_ptr)();
return;
@@ -402,19 +404,29 @@ int main(void) {
baseband_thread.baseband_processor = new WidebandFMAudio();
break;
case 3:
/*case 3:
direction = baseband::Direction::Receive;
baseband_thread.baseband_processor = new AISProcessor();
break;
break;*/
case 4:
direction = baseband::Direction::Receive;
baseband_thread.baseband_processor = new WidebandSpectrum();
break;
case 5:
/*case 5:
direction = baseband::Direction::Receive;
baseband_thread.baseband_processor = new TPMSProcessor();
break;*/
case 6:
direction = baseband::Direction::Receive;
baseband_thread.baseband_processor = new AFSKRXProcessor();
break;
case 7:
direction = baseband::Direction::Receive;
baseband_thread.baseband_processor = new SIGFRXProcessor();
break;
case 0xFF:

122
firmware/baseband/proc_afskrx.cpp Normal file
View File

@@ -0,0 +1,122 @@
/*
* Copyright (C) 2015 Jared Boone, ShareBrained Technology, Inc.
*
* This file is part of PortaPack.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street,
* Boston, MA 02110-1301, USA.
*/
#include "proc_afskrx.hpp"
#include "sine_table.hpp"
#include "portapack_shared_memory.hpp"
using namespace lpc43xx;
void AFSKRXProcessor::execute(buffer_c8_t buffer) {
/* Called every 2048/3072000 second -- 1500Hz. */
auto decimator_out = decimator.execute(buffer);
const buffer_c16_t work_baseband_buffer {
(complex16_t*)decimator_out.p,
sizeof(*decimator_out.p) * decimator_out.count
};
/* 96kHz complex<int16_t>[64]
* -> FIR filter, <6kHz (0.063fs) pass, gain 1.0
* -> 48kHz int16_t[32] */
auto channel = channel_filter.execute(decimator_out, work_baseband_buffer);
const buffer_s16_t work_audio_buffer {
(int16_t*)decimator_out.p,
sizeof(*decimator_out.p) * decimator_out.count
};
/* 48kHz complex<int16_t>[32]
* -> FM demodulation
* -> 48kHz int16_t[32] */
auto audio = demod.execute(channel, work_audio_buffer);
/*static uint64_t audio_present_history = 0;
const auto audio_present_now = squelch.execute(audio);
audio_present_history = (audio_present_history << 1) | (audio_present_now ? 1 : 0);
const bool audio_present = (audio_present_history != 0);
*/
//if( !audio_present ) {
// Zero audio buffer.
/*for(size_t i=0; i<audio.count; i++) {
if ((i % 3) > 1)
audio.p[i] = 4096;
else
audio.p[i] = -4096;
}*/
//}
audio_hpf.execute_in_place(audio);
for(size_t i=0; i<audio.count; i++) {
if (spur > 10) {
if (audio.p[i] > 2000)
sign = 1;
if (audio.p[i] < -2000)
sign = 0;
spur = 0;
} else {
spur++;
}
if (sign != prev_sign) {
if (freq_timer < 15) // 48
bit = 0;
else
bit++;
freq_timer = 0;
}
prev_sign = sign;
if (freq_timer < 1000) freq_timer++; // TODO: Limit in a more intelligent way
}
if (bit_timer >= 40) {
bit_timer = 0;
// Check bit state here !
} else {
bit_timer++;
}
if (sc >= 600) {
sc = 0;
AFSKDataMessage message;
memcpy(message.data,aud,128*2);
shared_memory.application_queue.push(message);
audc = 0;
} else {
sc++;
}
if (audc < 4) {
memcpy(aud+(audc*32),audio.p,32*2);
audc++;
}
fill_audio_buffer(audio);
}
void AFSKRXProcessor::data_handler(
const double data
) {
/*AFSKDataMessage message;
message.data = 'T';
shared_memory.application_queue.push(message);*/
}

68
firmware/baseband/proc_afskrx.hpp Normal file
View File

@@ -0,0 +1,68 @@
/*
* Copyright (C) 2015 Jared Boone, ShareBrained Technology, Inc.
*
* This file is part of PortaPack.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street,
* Boston, MA 02110-1301, USA.
*/
#ifndef __PROC_AFSKRX_H__
#define __PROC_AFSKRX_H__
#include "baseband_processor.hpp"
#include "channel_decimator.hpp"
#include "dsp_decimate.hpp"
#include "dsp_demodulate.hpp"
#include "dsp_fir_taps.hpp"
#include "dsp_iir.hpp"
#include "dsp_iir_config.hpp"
#include "dsp_squelch.hpp"
#include "message.hpp"
#include <cstdint>
#include <cstddef>
#include <bitset>
class AFSKRXProcessor : public BasebandProcessor {
public:
AFSKRXProcessor() {
decimator.set_decimation_factor(ChannelDecimator::DecimationFactor::By32);
channel_filter.configure(channel_filter_taps.taps, 2);
}
void execute(buffer_c8_t buffer) override;
private:
ChannelDecimator decimator;
const fir_taps_real<64>& channel_filter_taps = taps_64_lp_042_078_tfilter;
dsp::decimate::FIRAndDecimateComplex channel_filter;
dsp::demodulate::FM demod { 48000, 5000 };
IIRBiquadFilter audio_hpf { audio_hpf_config };
//FMSquelch squelch;
uint16_t bit_timer = 0, freq_timer = 0;
uint16_t sc;
uint8_t audc, spur, sign, prev_sign, bit = 0;
int16_t aud[128];
void data_handler(const double data);
};
#endif/*__PROC_TPMS_H__*/