POCSAG TX (with fixed message for testing)

2025-05-12 19:52:17 -04:00 · 2017-02-07 17:48:17 +00:00 · 2017-02-07 17:48:17 +00:00 · dc7fcbc6c3
commit dc7fcbc6c3
parent b430b1e427
22 changed files with 562 additions and 91 deletions
--- a/firmware/application/ui_pocsag_tx.cpp
+++ b/firmware/application/ui_pocsag_tx.cpp
@ -0,0 +1,142 @@
+/*
+ * 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 "ui_pocsag_tx.hpp"
+
+#include "pocsag.hpp"
+#include "baseband_api.hpp"
+#include "string_format.hpp"
+
+#include "portapack_persistent_memory.hpp"
+
+#include <cstring>
+#include <stdio.h>
+#include <math.h>
+
+using namespace portapack;
+using namespace pocsag;
+
+namespace ui {
+
+void POCSAGTXView::focus() {
+	tx_view.focus();
+}
+
+POCSAGTXView::~POCSAGTXView() {
+	transmitter_model.disable();
+	baseband::shutdown();
+}
+
+void POCSAGTXView::on_tx_progress(const int progress, const bool done) {
+	if (done) {
+		transmitter_model.disable();
+		progressbar.set_value(0);
+		tx_view.set_transmitting(false);
+	} else
+		progressbar.set_value(progress);
+}
+
+void POCSAGTXView::start_tx() {
+	uint32_t total_frames, i, codeword, b, bi, address;
+	std::string test_string = "PORTAPACK !";
+	std::vector<uint32_t> codewords;
+	uint8_t byte = 0;
+	
+	address = address_field.value_dec_u32();
+	if (address > 0x7FFFFFU)
+		address = 0;			// Todo: Error screen
+	
+	pocsag_encode(BCH_code, test_string, address, codewords);
+	
+	total_frames = codewords.size() / 2;
+	
+	progressbar.set_max(total_frames);
+	
+	transmitter_model.set_sampling_rate(2280000);
+	transmitter_model.set_rf_amp(true);
+	transmitter_model.set_lna(40);
+	transmitter_model.set_vga(40);
+	transmitter_model.set_baseband_bandwidth(1750000);
+	transmitter_model.enable();
+	
+	uint8_t * data_ptr = shared_memory.bb_data.data;
+	
+	bi = 0;
+	for (i = 0; i < codewords.size(); i++) {
+		/*for (b = 0; b < 32; b++) {
+			byte |= ((((codewords[i] << b) & 0x80000000U) ? 1 : 0) << (7 - (b & 7)));
+			if ((b & 7) == 7) {
+				data_ptr[bi++] = byte;
+				byte = 0;
+			}
+		}*/
+		codeword = codewords[i];
+		data_ptr[bi++] = (codeword >> 24) & 0xFF;
+		data_ptr[bi++] = (codeword >> 16) & 0xFF;
+		data_ptr[bi++] = (codeword >> 8) & 0xFF;
+		data_ptr[bi++] = codeword & 0xFF;
+	}
+	
+	text_debug_a.set("Codewords: " + to_string_dec_uint(codewords.size()));
+	
+	baseband::set_fsk_data(
+		codewords.size() * 32,
+		228000 / 1200,
+		4500,
+		64
+		//228000 / ((numberfield_clk.value() * 1000) / encoder_def->clk_per_fragment),
+	);
+}
+
+POCSAGTXView::POCSAGTXView(NavigationView& nav) {
+	//size_t i;
+	
+	baseband::run_image(portapack::spi_flash::image_tag_fsktx);
+
+	add_children({
+		&text_debug_a,
+		&text_debug_b,
+		&text_debug_c,
+		&address_field,
+		&progressbar,
+		&tx_view
+	});
+	
+	tx_view.on_edit_frequency = [this, &nav]() {
+		auto new_view = nav.push<FrequencyKeypadView>(receiver_model.tuning_frequency());
+		new_view->on_changed = [this](rf::Frequency f) {
+			receiver_model.set_tuning_frequency(f);
+		};
+	};
+	
+	tx_view.on_start = [this]() {
+		tx_view.set_transmitting(true);
+		start_tx();
+	};
+	
+	tx_view.on_stop = [this]() {
+		tx_view.set_transmitting(false);
+	};
+	
+}
+
+} /* namespace ui */