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Morse CW TX and message set button

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furrtek
2017-02-14 17:16:59 +00:00
parent 6c86ad1b72
commit 58718afd50
8 changed files with 131 additions and 221 deletions
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110
firmware/baseband/proc_epar.cpp
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@@ -1,110 +0,0 @@
/*
* Copyright (C) 2015 Jared Boone, ShareBrained Technology, Inc.
* Copyright (C) 2016 Furrtek
*
* 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_epar.hpp"
#include "dsp_iir_config.hpp"
#include "audio_output.hpp"
#include "event_m4.hpp"
#include "portapack_shared_memory.hpp"
#include "sine_table.hpp"
#include <cstdint>
void EPARProcessor::execute(const buffer_c8_t& buffer) {
// This is called at 1536000/2048 = 750Hz
for (size_t i = 0; i<buffer.count; i++) {
// Sample generation rate: 1536000/10 = 153kHz
if (s >= 9) {
s = 0;
if (sample_count >= EPAR_TU) {
if (state) {
// Send code
if (current_tu == 2) {
current_bit = shared_memory.epardata[bit_pos];
if (bit_pos == 12) {
bit_pos = 0;
current_tu = 0;
state = 0;
} else {
bit_pos++;
}
current_tu = 0;
} else {
current_tu++;
}
sample = bitdef[current_bit][current_tu];
} else {
// Pause
if (current_tu == EPAR_SPACE) {
if (repeat_count == EPAR_REPEAT) {
message.n = 100; // End of transmission code
transmit_done = true;
shared_memory.application_queue.push(message);
}
if (transmit_done == false) {
message.n = repeat_count; // Inform UI about progress (just as eye candy)
shared_memory.application_queue.push(message);
state = 1;
}
repeat_count++;
current_tu = 0;
} else {
current_tu++;
}
sample = -127;
}
sample_count = 0;
} else {
sample_count++;
}
} else {
s++;
}
//FM
frq = sample * shared_memory.excursion; // 500=~3kHz wide
phase = (phase + frq);
sphase = phase + (256<<16);
re = (sine_table_f32[(sphase & 0x03FF0000)>>18]*127);
im = (sine_table_f32[(phase & 0x03FF0000)>>18]*127);
buffer.p[i] = {(int8_t)re,(int8_t)im};
}
}
int main() {
EventDispatcher event_dispatcher { std::make_unique<EPARProcessor>() };
event_dispatcher.run();
return 0;
}

71
firmware/baseband/proc_epar.hpp
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@@ -1,71 +0,0 @@
/*
* Copyright (C) 2015 Jared Boone, ShareBrained Technology, Inc.
* Copyright (C) 2016 Furrtek
*
* 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_EPAR_H__
#define __PROC_EPAR_H__
#include "baseband_processor.hpp"
#include "baseband_thread.hpp"
#include "dsp_decimate.hpp"
#include "dsp_demodulate.hpp"
#include "audio_output.hpp"
// One bit is 0.005119048s (~200bps ?)
// Time unit is 0.001706349s (586Hz)
#define EPAR_TU 262-1 // 1536000/10/586
#define EPAR_SPACE 33-1
#define EPAR_REPEAT 26*2 // DEBUG
// 0: 011
// 1: 001
// Good: 1001110111111
// Bad: 1100111011111
class EPARProcessor : public BasebandProcessor {
public:
void execute(const buffer_c8_t& buffer) override;
private:
bool transmit_done;
const int8_t bitdef[2][3] = {
{-127, 127, 127},
{-127, -127, 127}
};
int8_t re, im;
uint8_t s;
uint8_t state_length = 0;
uint8_t current_bit = 0;
uint8_t current_tu = 0;
uint8_t bit_pos = 0;
uint8_t repeat_count = 0;
uint32_t sample_count = 0;
uint32_t aphase, phase, sphase;
int32_t sample, frq;
uint8_t state = 1;
TXDoneMessage message;
};
#endif