.

Makefile

@@ -27,7 +27,7 @@ ENABLE_NOAA                      := 0
 ENABLE_VOICE                     := 0
 ENABLE_MUTE_RADIO_FOR_VOICE      := 0
 # Tx on Voice 1.0 kB
-ENABLE_VOX                       := 0
+ENABLE_VOX                       := 1
 ENABLE_VOX_MORE_SENSITIVE        := 1
 ENABLE_REDUCE_LOW_MID_TX_POWER   := 1
 # Tx Alarm 600 B
@@ -82,7 +82,7 @@ ENABLE_TX_AUDIO_BAR              := 0
 ENABLE_SIDE_BUTT_MENU            := 0
 # Key Lock 400 B
 ENABLE_KEYLOCK                   := 1
-ENABLE_PANADAPTER                := 1
+ENABLE_PANADAPTER                := 0
 #ENABLE_SINGLE_VFO_CHAN          := 0
 
 #############################################################

am_fix.c

@@ -449,6 +449,12 @@ void AM_fix_10ms(const int vfo)
 	#endif
 }
 
+void AM_fix_set_front_end_gains(const int vfo)
+{
+	const unsigned int index = gain_table_index_prev[vfo];
+	BK4819_write_reg(0x13, gain_table[index].reg_val);
+}
+
 #ifdef ENABLE_AM_FIX_SHOW_DATA
 
 	void AM_fix_print_data(const int vfo, char *s)

am_fix.h

@@ -26,6 +26,7 @@ extern int16_t rssi_gain_diff[2];
 void AM_fix_init(void);
 void AM_fix_reset(const int vfo);
 void AM_fix_10ms(const int vfo);
+void AM_fix_set_front_end_gains(const int vfo);
 #ifdef ENABLE_AM_FIX_SHOW_DATA
 	void AM_fix_print_data(const int vfo, char *s);
 #endif

app/app.c

@@ -85,7 +85,7 @@ static void APP_update_rssi(const int vfo, const bool force)
 	#ifdef ENABLE_AM_FIX
 		// add RF gain adjust compensation
 		#ifdef ENABLE_PANADAPTER
-			if (!g_pan_enabled || g_panadapter_vfo_mode > 0)
+			if (!PAN_scanning())
 		#endif
 				if (g_current_vfo->channel.mod_mode != MOD_MODE_FM && g_eeprom.config.setting.am_fix)
 					rssi -= rssi_gain_diff[vfo];
@@ -105,6 +105,11 @@ static void APP_update_rssi(const int vfo, const bool force)
 
 static void APP_check_for_new_receive(void)
 {
+	#ifdef ENABLE_PANADAPTER
+		if (PAN_scanning())
+			return;
+	#endif
+
 	if (!g_squelch_open && !g_monitor_enabled)
 		return;
 
@@ -179,6 +184,14 @@ static void APP_process_new_receive(void)
 {
 	bool flag;
 
+	#ifdef ENABLE_PANADAPTER
+		if (PAN_scanning())
+		{
+			BK4819_set_AFC(0);
+			return;
+		}
+	#endif
+
 	if (!g_squelch_open)
 		BK4819_set_AFC(0);
 
@@ -273,6 +286,11 @@ typedef enum end_of_rx_mode_e end_of_rx_mode_t;
 
 static void APP_process_rx(void)
 {
+	#ifdef ENABLE_PANADAPTER
+		if (PAN_scanning())
+			return;
+	#endif
+
 	end_of_rx_mode_t Mode = END_OF_RX_MODE_NONE;
 
 //	APP_update_rssi(g_rx_vfo_num);
@@ -2228,6 +2246,10 @@ void APP_time_slice_500ms(void)
 
 						g_reduced_service = true;
 
+						#ifdef ENABLE_PANADAPTER
+							PAN_process_10ms();      // disable the panadapter
+						#endif
+
 						FUNCTION_Select(FUNCTION_POWER_SAVE);
 
 						ST7565_HardwareReset();
@@ -2426,10 +2448,10 @@ void APP_time_slice_10ms(void)
 	#endif
 
 	#ifdef ENABLE_AM_FIX
-		if (g_rx_vfo->channel.mod_mode != MOD_MODE_FM && g_eeprom.config.setting.am_fix)
 		#ifdef ENABLE_PANADAPTER
-				if (!g_eeprom.config.setting.panadapter || g_panadapter_vfo_mode > 0)
+			if (!PAN_scanning())
 		#endif
+				if (g_rx_vfo->channel.mod_mode != MOD_MODE_FM && g_eeprom.config.setting.am_fix)
 					AM_fix_10ms(g_rx_vfo_num);
 	#endif
 
@@ -2456,17 +2478,19 @@ void APP_time_slice_10ms(void)
 			AUDIO_PlayBeep(BEEP_880HZ_40MS_OPTIONAL);
 	#endif
 
+#ifdef ENABLE_PANADAPTER
+	if (!PAN_scanning())
+#endif
+	{
 		// 1of11
 //		if (g_update_rssi)
 		if (g_current_function != FUNCTION_POWER_SAVE && g_current_function != FUNCTION_TRANSMIT)
 			if (!g_flag_save_channel)
-			#ifdef ENABLE_PANADAPTER
-				if (!g_eeprom.config.setting.panadapter || g_panadapter_vfo_mode > 0)
-			#endif
 				APP_update_rssi(g_rx_vfo_num, false);
 
 		if (g_current_function != FUNCTION_POWER_SAVE || !g_rx_idle_mode)
 			APP_process_radio_interrupts();
+	}
 
 	APP_process_functions();
 
@@ -2528,7 +2552,6 @@ void APP_time_slice_10ms(void)
 	#endif
 
 	#ifdef ENABLE_PANADAPTER
-		if (g_eeprom.config.setting.panadapter)
 		PAN_process_10ms();
 	#endif
 

app/menu.c

@@ -679,7 +679,6 @@ void MENU_AcceptSetting(void)
 		#ifdef ENABLE_PANADAPTER
 			case MENU_PANADAPTER:
 				g_eeprom.config.setting.panadapter = g_sub_menu_selection;
-				PAN_enable((g_eeprom.config.setting.panadapter != 0) ? true : false);
 				break;
 		#endif
 

main.c

@@ -44,9 +44,6 @@
 	#include "mdc1200.h"
 #endif
 #include "misc.h"
-#ifdef ENABLE_PANADAPTER
-	#include "panadapter.h"
-#endif
 #include "radio.h"
 #include "settings.h"
 #include "ui/helper.h"
@@ -243,10 +240,6 @@ void Main(void)
 		AM_fix_init();
 	#endif
 
-	#ifdef ENABLE_PANADAPTER
-		PAN_enable((g_eeprom.config.setting.panadapter != 0) ? true : false);
-	#endif
-
 	BK4819_set_mic_gain(g_mic_sensitivity_tuning);
 
 	RADIO_configure_channel(0, VFO_CONFIGURE_RELOAD);

panadapter.c

@@ -1,4 +1,7 @@
 
+#ifdef ENABLE_AM_FIX
+	#include "am_fix.h"
+#endif
 #if defined(ENABLE_UART) && defined(ENABLE_UART_DEBUG)
 	#include "driver/uart.h"
 #endif
@@ -14,13 +17,15 @@
 #include "ui/main.h"
 #include "ui/ui.h"
 
-bool g_pan_enabled = false;
+bool    g_pan_enabled;
-
+int     g_panadapter_vfo_mode;     // > 0 if we're currently sampling the VFO
-// a list of frequencies to ignore/skip when scanning
 uint8_t g_panadapter_rssi[PANADAPTER_BINS + 1 + PANADAPTER_BINS];
 int     g_panadapter_rssi_index;
 
-int     g_panadapter_vfo_mode;     // > 0 if we're currently sampling the VFO
+bool PAN_scanning(void)
+{
+	return (g_eeprom.config.setting.panadapter && g_pan_enabled && g_panadapter_vfo_mode <= 0) ? true : false;
+}
 
 void PAN_set_freq(void)
 {	// set the frequency
@@ -28,7 +33,7 @@ void PAN_set_freq(void)
 	const uint32_t step_size = g_tx_vfo->step_freq;
 	uint32_t       freq      = g_tx_vfo->p_rx->frequency;
 
-	if (g_panadapter_vfo_mode <= 0)
+	if (g_pan_enabled && g_panadapter_vfo_mode <= 0)
 	{	// panadapter mode .. add the bin offset
 		if (g_panadapter_rssi_index < PANADAPTER_BINS)
 			freq -= step_size * (PANADAPTER_BINS - g_panadapter_rssi_index);
@@ -41,72 +46,58 @@ void PAN_set_freq(void)
 	//BK4819_set_rf_filter_path(freq);    // set the proper LNA/PA filter path
 
 	// default front end gains
-	if (g_panadapter_vfo_mode <= 0)
+	#ifdef ENABLE_AM_FIX
+		if (g_panadapter_vfo_mode <= 0 || g_tx_vfo->channel.mod_mode == MOD_MODE_FM)
 			BK4819_write_reg(0x13, (g_orig_lnas << 8) | (g_orig_lna << 5) | (g_orig_mixer << 3) | (g_orig_pga << 0));
-}
+		else
-
+			AM_fix_set_front_end_gains(g_eeprom.config.setting.tx_vfo_num);
-void PAN_clear(void)
-{
-	g_panadapter_rssi_index = 0;
-	memset(g_panadapter_rssi, 0, sizeof(g_panadapter_rssi));
-
-	g_panadapter_vfo_mode = 1;
-
-	#if defined(ENABLE_UART) && defined(ENABLE_UART_DEBUG)
-//		UART_printf("%u\r\n", g_panadapter_rssi_index);
 	#endif
 }
 
-void PAN_enable(const bool enable)
+void PAN_process_10ms(void)
 {
-	if (enable && g_eeprom.config.setting.panadapter)
+	if (!g_eeprom.config.setting.panadapter         ||
-	{
+	#ifdef ENABLE_FMRADIO
-		if (!g_pan_enabled)
+		 g_fm_radio_mode                            ||
-		{
+	#endif
-			PAN_clear();
+	     g_reduced_service                          ||
-			g_panadapter_vfo_mode = 0;
+	     g_monitor_enabled                          ||
-			PAN_set_freq();
+	     g_current_function == FUNCTION_TRANSMIT    ||
-			g_pan_enabled         = true;
-			//g_update_display      = true;
-			UI_DisplayMain_pan(true);
-		}
-	}
-	else
-	{
-		if (g_pan_enabled)
-		{
-			PAN_clear();
-			g_panadapter_vfo_mode = 1;
-			PAN_set_freq();
-			g_pan_enabled         = false;
-			g_update_display      = true;
-		}
-	}
-}
-
-bool PAN_process_10ms(void)
-{
-	if (!g_pan_enabled)
-		return false;
-
-	if (g_current_function == FUNCTION_TRANSMIT    ||
 	     g_current_function == FUNCTION_POWER_SAVE  ||
 	     g_current_function == FUNCTION_NEW_RECEIVE ||
-	    g_current_function == FUNCTION_RECEIVE)
+	     g_current_function == FUNCTION_RECEIVE     ||
-		return false;
+	     g_current_display_screen == DISPLAY_SEARCH ||
-
-	if (g_current_display_screen == DISPLAY_SEARCH ||
 	     g_css_scan_mode  != CSS_SCAN_MODE_OFF      ||
 	     g_scan_state_dir != SCAN_STATE_DIR_OFF)
-		return false;
+	{
+		if (g_pan_enabled)
+		{	// disable the panadapter
 
-	#ifdef ENABLE_FMRADIO
+			g_panadapter_vfo_mode = 1;
-		if (g_fm_radio_mode)
+			g_pan_enabled = false;
-			return false;
+			PAN_set_freq();
-	#endif
 
-	if (g_squelch_open || g_monitor_enabled)
+			g_update_display = true;
-		return false;
+			//UI_DisplayMain_pan(true);
+		}
+
+		return;
+	}
+
+	if (!g_pan_enabled)
+	{	// enable the panadapter
+
+		g_panadapter_vfo_mode = 0;
+		g_panadapter_rssi_index = 0;
+//		memset(g_panadapter_rssi, 0, sizeof(g_panadapter_rssi));
+		g_pan_enabled = true;
+		PAN_set_freq();
+
+		g_update_display = true;
+		//UI_DisplayMain_pan(true);
+
+		return;
+	}
 
 	if (g_panadapter_vfo_mode <= 0)
 	{	// save the current RSSI value
@@ -115,25 +106,27 @@ bool PAN_process_10ms(void)
 	}
 
 	if (g_panadapter_vfo_mode <= 0)
-	{
+	{	// scanning
 		if (++g_panadapter_rssi_index >= (int)ARRAY_SIZE(g_panadapter_rssi))
 			g_panadapter_rssi_index = 0;
 
-		// switch back to the VFO frequency once every 16 frequency steps .. if in FM mode
 		if (g_tx_vfo->channel.mod_mode == MOD_MODE_FM)
+			// switch back to the VFO frequency once every 16 frequency steps .. if in FM mode
 			g_panadapter_vfo_mode = ((g_panadapter_rssi_index & 15u) == 0) ? 1 : 0;
+		else
+			// switch back to the VFO frequency once each scan cycle if not in FM mode
+			g_panadapter_vfo_mode = (g_panadapter_rssi_index == 0) ? 1 : 0;
 	}
 	else
-	if (++g_panadapter_vfo_mode >= 8)
+	{	// checking the VFO frequency for a signal .. we do this this periodically
-	{
+		if (++g_panadapter_vfo_mode >= 9)   // monitor the VFO frequency for 90ms before continuing our scan
 			g_panadapter_vfo_mode = 0;
 	}
 
 	PAN_set_freq();
 
+	// the last bin value .. draw the panadapter once each scan cycle
 	if (g_panadapter_rssi_index == 0 && g_panadapter_vfo_mode <= 1)
-		UI_DisplayMain_pan(true);  // the last bin value - show the panadapter
+		UI_DisplayMain_pan(true);
 		//g_update_display = true;
-
-	return (g_panadapter_vfo_mode <= 0) ? true : false;
 }

panadapter.h

@@ -26,12 +26,11 @@
 #define PANADAPTER_BINS   ((LCD_WIDTH / 2) - 1)
 
 extern bool    g_pan_enabled;
-extern uint8_t g_panadapter_rssi[PANADAPTER_BINS + 1 + PANADAPTER_BINS];
 extern int     g_panadapter_vfo_mode;
+extern uint8_t g_panadapter_rssi[PANADAPTER_BINS + 1 + PANADAPTER_BINS];
 
-void PAN_clear(void);
+bool PAN_scanning(void);
-void PAN_enable(const bool enable);
+void PAN_process_10ms(void);
-bool PAN_process_10ms(void);
 
 #endif
 

radio.c

@@ -360,7 +360,7 @@ void RADIO_configure_channel(const unsigned int VFO, const unsigned int configur
 		if (p_vfo->channel.mod_mode != MOD_MODE_FM && g_eeprom.config.setting.am_fix)
 		{
 			#ifdef ENABLE_PANADAPTER
-				if (!g_pan_enabled || g_panadapter_vfo_mode > 0)
+				if (!PAN_scanning())
 				{
 					AM_fix_10ms(VFO);
 				}
@@ -382,7 +382,7 @@ void RADIO_configure_channel(const unsigned int VFO, const unsigned int configur
 		if (p_vfo->mod_mode != MOD_MODE_FM)
 		{
 			#ifdef ENABLE_PANADAPTER
-				if (!g_pan_enabled || g_panadapter_vfo_mode > 0)
+				if (!PAN_scanning())
 				{
 					BK4819_EnableAGC();
 				}

ui/main.c

@@ -417,9 +417,9 @@ void big_freq(const uint32_t frequency, const unsigned int x, const unsigned int
 		uint8_t            span_rssi;
 		unsigned int       i;
 
-		if (!g_eeprom.config.setting.panadapter)
+		if (!g_eeprom.config.setting.panadapter || !g_pan_enabled || g_panadapter_vfo_mode > 0)
 			return;
-		if (!g_pan_enabled || single_vfo < 0 || g_current_display_screen != DISPLAY_MAIN)
+		if (single_vfo < 0 || g_current_display_screen != DISPLAY_MAIN)
 			return;
 		if (g_squelch_open || g_monitor_enabled)
 			return;
@@ -474,7 +474,7 @@ void big_freq(const uint32_t frequency, const unsigned int x, const unsigned int
 		}
 
 		// center marker (the VFO frequency)
-		base_line[(ARRAY_SIZE(g_panadapter_rssi) / 2) - (LCD_WIDTH * 2)] ^= 0xAA;
+		base_line[(ARRAY_SIZE(g_panadapter_rssi) / 2) - (LCD_WIDTH * 2)] = 0xAA;
 
 		// top horizontal line
 		for (i = 0; i < ARRAY_SIZE(g_panadapter_rssi); i += 2)
@@ -509,7 +509,8 @@ void UI_DisplayMain(void)
 
 #ifdef ENABLE_PANADAPTER
 	if (g_eeprom.config.setting.dual_watch == DUAL_WATCH_OFF && g_eeprom.config.setting.cross_vfo == CROSS_BAND_OFF)
-		if (!g_squelch_open && !g_monitor_enabled && g_eeprom.config.setting.panadapter)
+		if (g_eeprom.config.setting.panadapter && g_pan_enabled)
+			if (!g_squelch_open && !g_monitor_enabled)
 				single_vfo = g_eeprom.config.setting.tx_vfo_num;
 #endif