Added De Bruijn sequence generator

Moved POCSAG frequency list to SD card file for FreqMan

firmware/application/CMakeLists.txt

@@ -152,6 +152,7 @@ set(CPPSRC
 	${COMMON}/bch_code.cpp
 	ctcss.cpp
 	encoder.cpp
+	de_bruijn.cpp
 	freqman.cpp
 	${COMMON}/lcd_ili9341.cpp
 	${COMMON}/ui.cpp

firmware/application/de_bruijn.cpp

@@ -0,0 +1,97 @@
+/*
+ * Copyright (C) 2014 Jared Boone, ShareBrained Technology, Inc.
+ * Copyright (C) 2017 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 "de_bruijn.hpp"
+
+/*
+How this works:
+B(2,4):		2 states, 4 bits
+Primitive poly with n=4: 1001
+
+	0001
+xor 1001 = 0 ^ 1 = 1
+
+	00011
+xor  1001 = 0 ^ 1 = 1
+
+	000111
+xor   1001 = 0 ^ 1 = 1
+
+	0001111
+xor    1001 = 1 ^ 1 = 0
+
+	00011110
+xor     1001 = 1 ^ 0 = 1
+
+	000111101
+xor      1001 = 1 ^ 1 = 0
+
+	0001111010
+xor       1001 = 0 ^ 1 = 1
+
+	00011110101
+xor        1001 = 0 ^ 1 = 1
+
+	000111101011
+xor         1001 = 1 ^ 1 = 0
+
+	0001111010110
+xor          1001 = 0 ^ 0 = 0
+
+	00011110101100
+xor           1001 = 1 ^ 0 = 1
+
+	000111101011001
+xor            1001 = 1 ^ 1 = 0
+
+	0001111010110010
+xor             1001 = 0 ^ 0 = 0
+*/
+
+void de_bruijn::init(const uint32_t n) {
+	if ((n < 3) || (n > 16))
+		length = 3;
+	else
+		length = n;
+	
+	// k is 2 (binary sequence)
+	poly = de_bruijn_polys[length - 3];
+	shift_register = 1;
+}
+
+uint32_t de_bruijn::compute(const uint32_t step) {
+	uint32_t c, bits, masked;
+	uint8_t new_bit;
+	
+	for (c = 0; c < step; c++) {
+		masked = shift_register & poly;
+		new_bit = 0;
+		for (bits = 0; bits < length; bits++) {
+			new_bit ^= (masked & 1);
+			masked >>= 1;
+		}
+		shift_register <<= 1;
+		shift_register |= new_bit;
+	}
+	
+	return shift_register;
+}

firmware/application/de_bruijn.hpp

@@ -0,0 +1,57 @@
+/*
+ * Copyright (C) 2014 Jared Boone, ShareBrained Technology, Inc.
+ * Copyright (C) 2017 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 <string>
+
+#ifndef __DE_BRUIJN_H__
+#define __DE_BRUIJN_H__
+
+// Starts at n = 3
+const uint32_t de_bruijn_polys[14] {
+	0b0000000000000101,
+	0b0000000000001001,
+	0b0000000000011011,
+	0b0000000000110011,
+	0b0000000001010011,
+	0b0000000010001101,
+	0b0000000100100001,
+	0b0000001000100001,
+	0b0000010001100001,
+	0b0000110101000011,
+	0b0001001001100101,
+	0b0010101100000011,
+	0b0101000000001001,
+	0b1010000101000101
+};
+
+struct de_bruijn {
+public:
+	void init(const uint32_t n);
+	uint32_t compute(const uint32_t step);
+
+private:
+	uint32_t length { };
+	uint32_t poly { };
+	uint32_t shift_register { };
+};
+
+#endif/*__DE_BRUIJN_H__*/

firmware/application/pocsag_app.cpp

@@ -57,10 +57,7 @@ namespace ui {
 
 void POCSAGAppView::update_freq(rf::Frequency f) {
 	set_target_frequency(f);
-	
 	portapack::persistent_memory::set_tuned_frequency(f);	// Maybe not ?
-
-	button_setfreq.set_text(to_string_short_freq(f));
 }
 
 POCSAGAppView::POCSAGAppView(NavigationView& nav) {
@@ -71,11 +68,10 @@ POCSAGAppView::POCSAGAppView(NavigationView& nav) {
 	add_children({
 		&rssi,
 		&channel,
-		&options_freq,
 		&field_rf_amp,
 		&field_lna,
 		&field_vga,
-		&button_setfreq,
+		&field_frequency,
 		&options_bitrate,
 		&check_log,
 		&check_ignore,
@@ -87,6 +83,20 @@ POCSAGAppView::POCSAGAppView(NavigationView& nav) {
 	receiver_model.set_baseband_bandwidth(1750000);
 	receiver_model.enable();
 	
+	field_frequency.set_value(receiver_model.tuning_frequency());
+	field_frequency.set_step(receiver_model.frequency_step());
+	field_frequency.on_change = [this](rf::Frequency f) {
+		update_freq(f);
+	};
+	field_frequency.on_edit = [this, &nav]() {
+		// TODO: Provide separate modal method/scheme?
+		auto new_view = nav.push<FrequencyKeypadView>(receiver_model.tuning_frequency());
+		new_view->on_changed = [this](rf::Frequency f) {
+			update_freq(f);
+			field_frequency.set_value(f);
+		};
+	};
+	
 	check_log.set_value(logging);
 	check_log.on_select = [this](Checkbox&, bool v) {
 		logging = v;
@@ -97,12 +107,6 @@ POCSAGAppView::POCSAGAppView(NavigationView& nav) {
 	};
 	options_bitrate.set_selected_index(1);	// 1200bps
 	
-	options_freq.on_change = [this](size_t, OptionsField::value_t v) {
-		set_target_frequency(v);
-		update_freq(v);
-	};
-	options_freq.set_by_value(target_frequency());
-	
 	check_ignore.set_value(ignore);
 	check_ignore.on_select = [this](Checkbox&, bool v) {
 		ignore = v;
@@ -114,21 +118,12 @@ POCSAGAppView::POCSAGAppView(NavigationView& nav) {
 		ignore_address /= 10;
 	}
 
-	button_setfreq.on_select = [this,&nav](Button&) {
-		auto new_view = nav.push<FrequencyKeypadView>(target_frequency_);
-		new_view->on_changed = [this](rf::Frequency f) {
-			options_freq.set_selected_index(0);		// Automatically select "Entered"
-			update_freq(f);
-		};
-	};
-
 	logger = std::make_unique<POCSAGLogger>();
 	if (logger)
 		logger->append("pocsag.txt");
 }
 
 POCSAGAppView::~POCSAGAppView() {	
-	
 	// Save ignored address
 	persistent_memory::set_pocsag_ignore_address(sym_ignore.value_dec_u32());
 	
@@ -137,7 +132,7 @@ POCSAGAppView::~POCSAGAppView() {
 }
 
 void POCSAGAppView::focus() {
-	options_freq.focus();
+	field_frequency.focus();
 }
 
 // Useless ?

firmware/application/pocsag_app.hpp

@@ -75,46 +75,6 @@ private:
 
 	static constexpr ui::Dim header_height = 1 * 16;
 
-	OptionsField options_freq {
-		{ 0 * 8, 0 * 16 },
-		12,
-		{
-			{ "Entered", 0 },
-			{ "BEL Fire", 169625000 },
-			{ "DEU Fire", 448425000 },
-			{ "DEU e-Msg1", 465970000 },
-			{ "DEU e-Msg2", 466075000 },
-			{ "FRA e-Msg1", 466025000 },
-			{ "FRA e-Msg2", 466050000 },
-			{ "FRA e-Msg3", 466075000 },
-			{ "FRA e-Msg4", 466175000 },
-			{ "FRA e-Msg5", 466206250 },
-			{ "FRA e-Msg6", 466231250 },
-			{ "FRA Fire *", 173512500 },
-			{ "FRA Fire HF", 85955000 },
-			{ "FRA Fire 1", 173550000 },
-			{ "FRA Fire 2", 173625000 }, 
-			{ "FRA Fire 3", 173550000 },
-			{ "FRA Fire 4", 173700000 },
-			{ "FRA Fire 5", 173875000 },
-			{ "FRA Fire 6", 173925000 },
-			{ "FRA Fire 7", 173550000 },
-			{ "FRA Fire 8", 168950000 },
-			{ "FRA Fire 9", 169025000 },
-			{ "FRA Fire 10", 169100000 },
-			{ "FRA Fire 11", 169275000 },
-			{ "FRA Fire 12", 169325000 },
-			{ "FRA Priv1", 446475000 },
-			{ "FRA Priv2", 446525000 },	* works near Paris
-			{ "NL Medical", 169650000 },
-			{ "NL KPN3-Public", 172450000 },
-			{ "SWE Minicall1", 169800000 },
-			{ "SWE Minicall2", 161437500 },
-			{ "USA Medical1", 152007500 },
-			{ "USA Medical2", 157450000 },
-			{ "USA Medical3", 163250000 }
-		}
-	};
 	RFAmpField field_rf_amp {
 		{ 13 * 8, 0 * 16 }
 	};
@@ -131,9 +91,8 @@ private:
 		{ 21 * 8, 5, 6 * 8, 4 },
 	};
 	
-	Button button_setfreq {
+	FrequencyField field_frequency {
-		{ 0, 19, 11 * 8, 20 },
+		{ 0 * 8, 0 * 8 },
-		"----.----"
 	};
 	OptionsField options_bitrate {
 		{ 12 * 8, 21 },

firmware/application/ui_encoders.cpp

@@ -270,6 +270,7 @@ EncodersView::EncodersView(NavigationView& nav) {
 		&numberfield_clk,
 		&numberfield_bitduration,
 		&numberfield_wordduration,
+		//&field_debug,
 		&symfield_word,
 		&text_format,
 		//&text_format_a,	// DEBUG
@@ -296,6 +297,19 @@ EncodersView::EncodersView(NavigationView& nav) {
 		this->generate_frame();
 	};
 	
+	// DEBUG
+	/*field_debug.on_change = [this](int32_t value) {
+		uint32_t l;
+		de_bruijn debruijn_seq;
+		debruijn_seq.init(value);
+		l = 1;
+		l <<= value;
+		l--;
+		if (l > 25)
+			l = 25;
+		text_format.set(to_string_bin(debruijn_seq.compute(l), 25));
+	};*/
+	
 	// Selecting input clock changes symbol and word duration
 	numberfield_clk.on_change = [this](int32_t value) {
 		//int32_t new_value = 1000000 / (((float)value * 1000) / encoder_def->clk_per_symbol);

firmware/application/ui_encoders.hpp

@@ -27,6 +27,7 @@
 #include "ui_receiver.hpp"
 #include "ui_transmitter.hpp"
 #include "encoders.hpp"
+#include "de_bruijn.hpp"
 #include "message.hpp"
 #include "transmitter_model.hpp"
 
@@ -142,6 +143,15 @@ private:
 		' '
 	};
 	
+	// DEBUG
+	/*NumberField field_debug {
+		{ 21 * 8, 10 * 8 },
+		2,
+		{ 3, 16 },
+		1,
+		' '
+	};*/
+	
 	SymField symfield_word {
 		{ 2 * 8, 12 * 8 },
 		20,

firmware/application/ui_transmitter.hpp

@@ -104,7 +104,7 @@ private:
 		"BW:   kHz"
 	};
 	NumberField field_bw {
-		{ 14 * 8, 2 * 8 },
+		{ 14 * 8, 1 * 8 },
 		3,
 		{ 1, 150 },
 		1,

sdcard/FREQMAN/DPMR.TXT

@@ -0,0 +1,16 @@
+f=446103125,d=dPMR CH1
+f=446109375,d=dPMR CH2
+f=446115625,d=dPMR CH3
+f=446121875,d=dPMR CH4
+f=446128125,d=dPMR CH5
+f=446134375,d=dPMR CH6
+f=446140625,d=dPMR CH7
+f=446146875,d=dPMR CH8
+f=446153125,d=dPMR CH9
+f=446159375,d=dPMR CH10
+f=446165625,d=dPMR CH11
+f=446171875,d=dPMR CH12
+f=446178125,d=dPMR CH13
+f=446184375,d=dPMR CH14
+f=446190625,d=dPMR CH15
+f=446196875,d=dPMR CH16

sdcard/FREQMAN/PMR446.TXT

@@ -6,19 +6,3 @@ f=446056250,d=PMR CH5
 f=446068750,d=PMR CH6
 f=446081250,d=PMR CH7
 f=446093750,d=PMR CH8
-f=446103125,d=dPMR CH1
-f=446109375,d=dPMR CH2
-f=446115625,d=dPMR CH3
-f=446121875,d=dPMR CH4
-f=446128125,d=dPMR CH5
-f=446134375,d=dPMR CH6
-f=446140625,d=dPMR CH7
-f=446146875,d=dPMR CH8
-f=446153125,d=dPMR CH9
-f=446159375,d=dPMR CH10
-f=446165625,d=dPMR CH11
-f=446171875,d=dPMR CH12
-f=446178125,d=dPMR CH13
-f=446184375,d=dPMR CH14
-f=446190625,d=dPMR CH15
-f=446196875,d=dPMR CH16

sdcard/FREQMAN/POCSAG.TXT

@@ -0,0 +1,33 @@
+f=169625000,d=BEL Fire 2400
+f=466025000,d=FRA e-Msg1 1200
+f=466050000,d=FRA e-Msg2 1200
+f=466075000,d=FRA e-Msg3 1200
+f=466175000,d=FRA e-Msg4 1200
+f=466206250,d=FRA e-Msg5 1200
+f=466231250,d=FRA e-Msg6 1200
+f=173512500,d=FRA Fire *
+f=85955000,d=FRA Fire HF
+f=173550000,d=FRA Fire 1
+f=173625000,d=FRA Fire 2
+f=173550000,d=FRA Fire 3
+f=173700000,d=FRA Fire 4
+f=173875000,d=FRA Fire 5
+f=173925000,d=FRA Fire 6
+f=173550000,d=FRA Fire 7
+f=168950000,d=FRA Fire 8
+f=169025000,d=FRA Fire 9
+f=169100000,d=FRA Fire 10
+f=169275000,d=FRA Fire 11
+f=169325000,d=FRA Fire 12
+f=446475000,d=FRA Priv1
+f=446525000,d=FRA Priv2
+f=448425000,d=GER Fire 1200
+f=465970000,d=GER Skyper1
+f=466075000,d=GER Skyper2
+f=169650000,d=NL Medical
+f=172450000,d=NL KPN3-Public
+f=169800000,d=SWE Minicall1
+f=161437500,d=SWE Minicall2
+f=152007500,d=USA Medical1
+f=157450000,d=USA Medical2
+f=163250000,d=USA Medical3