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ADS-B TX works well enough for dump1090 and gr-air-modes

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Hooked ADS-B RX to baseband instead of debug IQ file, not tested
This commit is contained in:
furrtek
2017-07-23 12:20:32 +01:00
parent b57b41753f
commit 5a67a7080a
23 changed files with 949 additions and 437 deletions
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121
firmware/application/ui_adsb_tx.cpp
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@@ -26,7 +26,6 @@
#include "string_format.hpp"
#include "portapack.hpp"
#include "baseband_api.hpp"
#include "portapack_persistent_memory.hpp"
#include <cstring>
#include <stdio.h>
@@ -37,7 +36,6 @@ using namespace portapack;
namespace ui {
void ADSBTxView::focus() {
//sym_icao.focus();
tx_view.focus();
}
@@ -46,28 +44,38 @@ ADSBTxView::~ADSBTxView() {
baseband::shutdown();
}
void ADSBTxView::paint(Painter& painter) {
(void)painter;
void ADSBTxView::paint(Painter&) {
button_callsign.set_text(callsign);
}
void ADSBTxView::generate_frame() {
uint32_t c;
std::string str_debug;
uint8_t * bin_ptr = shared_memory.bb_data.data;
generate_frame_id(frame, sym_icao.value_hex_u64(), callsign);
generate_frame_id(frames[0], sym_icao.value_hex_u64(), callsign);
generate_frame_pos(frames[1], sym_icao.value_hex_u64(), 5000, field_lat_degrees.value(), field_lon_degrees.value(), 0);
generate_frame_pos(frames[2], sym_icao.value_hex_u64(), 5000, field_lat_degrees.value(), field_lon_degrees.value(), 1);
memset(adsb_bin, 0, 112);
memset(bin_ptr, 0, 240);
auto raw_ptr = frames[0].get_raw_data();
memcpy(bin_ptr, adsb_preamble, 16);
// Convert to binary (1 byte per bit, faster for baseband code)
for (c = 0; c < 112; c++) {
if ((frame.get_byte(c >> 3) << (c & 7)) & 0x80)
adsb_bin[c] = 1;
if ((raw_ptr[c >> 3] << (c & 7)) & 0x80) {
bin_ptr[(c * 2) + 16] = 1;
bin_ptr[(c * 2) + 16 + 1] = 0;
} else {
bin_ptr[(c * 2) + 16] = 0;
bin_ptr[(c * 2) + 16 + 1] = 1;
}
}
// Display in hex for debug
//text_frame_a.set(to_string_hex_array(frame.get_byte(0), 7));
//text_frame_b.set(to_string_hex_array(frame.get_byte(7), 7));
text_frame_a.set(to_string_hex_array(frames[0].get_raw_data(), 7));
text_frame_b.set(to_string_hex_array(frames[0].get_raw_data() + 7, 7));
button_callsign.set_text(callsign);
}
@@ -75,28 +83,78 @@ void ADSBTxView::generate_frame() {
bool ADSBTxView::start_tx() {
generate_frame();
memcpy(shared_memory.bb_data.data, adsb_bin, 112);
baseband::set_adsb();
transmitter_model.set_tuning_frequency(434000000); // DEBUG
transmitter_model.set_tuning_frequency(434000000);
transmitter_model.set_sampling_rate(4000000U);
transmitter_model.set_rf_amp(true);
transmitter_model.set_vga(40);
transmitter_model.set_baseband_bandwidth(2500000);
transmitter_model.set_baseband_bandwidth(10000000);
transmitter_model.enable();
return false; // DEBUG
baseband::set_adsb();
return true;
}
void ADSBTxView::on_txdone(const bool v) {
//size_t sr;
if (v) {
transmitter_model.disable();
tx_view.set_transmitting(false);
//progress.set_value(0);
} else {
//progress.set_value(n);
}
}
void ADSBTxView::rotate_frames() {
// DEBUG
uint8_t * bin_ptr = shared_memory.bb_data.data;
uint8_t * raw_ptr;
uint32_t frame_index = 0, plane_index = 0;
uint32_t c, regen = 0;
float offs = 0;
for (;;) {
if (!regen) {
regen = 10;
generate_frame_id(frames[0], plane_index, "DEMO" + to_string_dec_uint(plane_index));
generate_frame_pos(frames[1], plane_index, 5000, plane_lats[plane_index]/8 + offs + 38.5, plane_lons[plane_index]/8 + 125.8, 0);
generate_frame_pos(frames[2], plane_index, 5000, plane_lats[plane_index]/8 + offs + 38.5, plane_lons[plane_index]/8 + 125.8, 1);
generate_frame_identity(frames[3], plane_index, 1337);
if (plane_index == 11)
plane_index = 0;
else
plane_index++;
offs += 0.001;
}
memset(bin_ptr, 0, 240);
raw_ptr = frames[frame_index].get_raw_data();
memcpy(bin_ptr, adsb_preamble, 16);
// Convert to binary (1 byte per bit, faster for baseband code)
for (c = 0; c < 112; c++) {
if ((raw_ptr[c >> 3] << (c & 7)) & 0x80) {
bin_ptr[(c * 2) + 16] = 1;
bin_ptr[(c * 2) + 16 + 1] = 0;
} else {
bin_ptr[(c * 2) + 16] = 0;
bin_ptr[(c * 2) + 16 + 1] = 1;
}
}
baseband::set_adsb();
chThdSleepMilliseconds(5);
if (frame_index == 3) {
frame_index = 0;
if (regen)
regen--;
} else {
frame_index++;
}
}
}
@@ -126,16 +184,14 @@ ADSBTxView::ADSBTxView(NavigationView& nav) {
options_format.set_by_value(17); // Mode S
options_format.on_change = [this](size_t i, int32_t v) {
(void)i;
(void)v;
options_format.on_change = [this](size_t, int32_t) {
generate_frame();
};
sym_icao.on_change = [this]() {
generate_frame();
};
button_callsign.on_select = [this, &nav](Button&) {
text_prompt(nav, &callsign, 9);
text_prompt(nav, &callsign, 8);
};
field_altitude.set_value(11000);
@@ -146,19 +202,24 @@ ADSBTxView::ADSBTxView(NavigationView& nav) {
field_lon_minutes.set_value(0);
field_lon_seconds.set_value(0);
field_lat_degrees.on_change = [this](int32_t) {
generate_frame();
};
field_lon_degrees.on_change = [this](int32_t) {
generate_frame();
};
for (c = 0; c < 4; c++)
field_squawk.set_sym(c, 0);
generate_frame();
tx_view.on_edit_frequency = [this, &nav]() {
// Shouldn't be able to edit frequency
return;
};
receiver_model.set_tuning_frequency(434000000); // DEBUG
tx_view.on_start = [this]() {
if (start_tx())
tx_view.set_transmitting(true);
//rotate_frames();
};
tx_view.on_stop = [this]() {