.

Makefile

@@ -75,7 +75,7 @@ ENABLE_SQ_OPEN_WITH_UP_DN_BUTTS  := 1
 ENABLE_FASTER_CHANNEL_SCAN       := 1
 ENABLE_COPY_CHAN_TO_VFO_TO_CHAN  := 1
 # Rx Signal Bar 400 B
-ENABLE_RX_SIGNAL_BAR             := 0
+ENABLE_RX_SIGNAL_BAR             := 1
 # Tx Audio Bar 300 B
 ENABLE_TX_AUDIO_BAR              := 0
 # Side Button Menu 300 B

README.md

@@ -27,7 +27,7 @@ Need to find a suitable replacement for the two jack sockets to confirm this tho
 
 <p float="left">
 <img src="/images/jack_sockets_top.png" width=300 />
-<img src="/images/jack_sockets_bot.png" width=300 />
+<img src="/images/jack_sockets_bot.png" width=236 />
 </p>
 
 # Radio performance

app/app.c

@@ -80,7 +80,7 @@ const uint8_t orig_pga   = 6;   //  -3dB
 
 static void APP_process_key(const key_code_t Key, const bool key_pressed, const bool key_held);
 
-static void APP_update_rssi(const int vfo)
+static void APP_update_rssi(const int vfo, const bool force)
 {
 	int16_t rssi   = BK4819_GetRSSI();
 	uint8_t glitch = BK4819_GetGlitchIndicator();
@@ -92,7 +92,7 @@ static void APP_update_rssi(const int vfo)
 			rssi -= rssi_gain_diff[vfo];
 	#endif
 
-	if (g_current_rssi[vfo] == rssi)
+	if (g_current_rssi[vfo] == rssi && !force)
 		return;     // no change
 
 	g_current_rssi[vfo]   = rssi;
@@ -100,6 +100,8 @@ static void APP_update_rssi(const int vfo)
 	g_current_noise[vfo]  = noise;
 
 	UI_update_rssi(rssi, glitch, noise, vfo);
+
+	g_update_rssi = false;
 }
 
 static void APP_check_for_new_receive(void)
@@ -163,15 +165,15 @@ done:
 		#ifdef ENABLE_MDC1200
 		{	// reset the FSK receiver
 			//const uint16_t fsk_reg59 = BK4819_read_reg(0x59) & ~((1u << 15) | (1u << 14) | (1u << 12) | (1u << 11));
-			//	BK4819_enable_mdc1200_rx(true);
+			//BK4819_enable_mdc1200_rx(true);
 			//BK4819_write_reg(0x59, (1u << 15) | (1u << 14) | fsk_reg59);
 			//BK4819_write_reg(0x59, (1u << 12) | fsk_reg59);
 		}
 		#endif
 	}
-		APP_update_rssi(g_rx_vfo_num);
+
+	APP_update_rssi(g_rx_vfo_num, true);
 	g_update_rssi = true;
-//	}
 }
 
 static void APP_process_new_receive(void)
@@ -259,6 +261,9 @@ static void APP_process_rx(void)
 {
 	end_of_rx_mode_t Mode = END_OF_RX_MODE_NONE;
 
+//	APP_update_rssi(g_rx_vfo_num);
+	g_update_rssi = true;
+
 	if (g_flag_tail_tone_elimination_complete)
 	{
 		Mode = END_OF_RX_MODE_END;
@@ -558,15 +563,13 @@ bool APP_start_listening(void)
 		AUDIO_set_mod_mode(g_rx_vfo->channel.mod_mode);
 	#endif
 
-	#if defined(ENABLE_UART) && defined(ENABLE_UART_DEBUG)
-		UART_printf("mode %u\r\n", g_rx_vfo->channel.mod_mode);
-	#endif
-
 	GPIO_SetBit(&GPIOC->DATA, GPIOC_PIN_SPEAKER);
 
 	if (g_current_display_screen != DISPLAY_MENU)
 		GUI_SelectNextDisplay(DISPLAY_MAIN);
 
+	APP_update_rssi(g_rx_vfo_num, true);
+
 	g_update_status  = true;
 	g_update_display = true;
 
@@ -1069,7 +1072,7 @@ void APP_process_radio_interrupts(void)
 				UART_SendText("sq close\r\n");
 			#endif
 
-			//APP_update_rssi(g_rx_vfo);
+			//APP_update_rssi(g_rx_vfo_num, false);
 			g_update_rssi = true;
 
 			g_update_display = true;
@@ -1083,7 +1086,7 @@ void APP_process_radio_interrupts(void)
 				UART_SendText("sq open\r\n");
 			#endif
 
-			//APP_update_rssi(g_rx_vfo_num);
+			//APP_update_rssi(g_rx_vfo_num, false);
 			g_update_rssi = true;
 
 			if (g_monitor_enabled)
@@ -1887,7 +1890,7 @@ void APP_process_power_save(void)
 		g_update_rssi)
 	{	// go back to sleep
 
-		APP_update_rssi(g_rx_vfo_num);
+		APP_update_rssi(g_rx_vfo_num, false);
 
 		// go back to sleep
 
@@ -2157,7 +2160,7 @@ void APP_time_slice_500ms(void)
 	}
 
 	if (g_current_function != FUNCTION_POWER_SAVE && g_current_function != FUNCTION_TRANSMIT)
-		APP_update_rssi(g_rx_vfo_num);
+		APP_update_rssi(g_rx_vfo_num, false);
 
 	if (g_low_battery)
 	{
@@ -2314,6 +2317,10 @@ void APP_time_slice_10ms(void)
 		g_request_display_screen = DISPLAY_INVALID;
 	}
 
+	// 1of11
+	if (g_update_rssi)
+		APP_update_rssi(g_rx_vfo_num, false);
+
 	if (g_update_display)
 		GUI_DisplayScreen();
 

app/main.c

@@ -51,20 +51,18 @@ bool g_manual_scanning;
 bool scanning_paused(void)
 {
 	if (g_scan_state_dir != SCAN_STATE_DIR_OFF &&
-	    g_scan_tick_10ms > 0 &&
+	    (g_scan_tick_10ms == 0 || g_scan_tick_10ms >= (400 / 10)))               // 400ms
-	    g_scan_tick_10ms <= (400 / 10))         // 400ms
 	{
-		return false;	// busy RF scanning
+		return true;
-	}
-	else
-	if (g_eeprom.config.setting.dual_watch != DUAL_WATCH_OFF &&
-	    g_dual_watch_tick_10ms > 0 &&
-	    g_dual_watch_tick_10ms <= (400 / 10))   // 400ms
-	{
-		return false;	// busy dual watch scanning
 	}
 
+	if (g_eeprom.config.setting.dual_watch != DUAL_WATCH_OFF &&
+	    (g_dual_watch_tick_10ms == 0 || g_dual_watch_tick_10ms >= (400 / 10)))   // 400ms
+	{
 		return true;
+	}
+
+	return (g_scan_state_dir == SCAN_STATE_DIR_OFF && g_eeprom.config.setting.dual_watch == DUAL_WATCH_OFF) ? true : false;
 }
 
 void toggle_chan_scanlist(void)

audio.c

@@ -88,6 +88,10 @@ void AUDIO_set_mod_mode(const mod_mode_t mode)
 		case MOD_MODE_DSB: af_mode = BK4819_AF_BASEBAND1; break;
 	}
 	BK4819_SetAF(af_mode);
+
+	#if defined(ENABLE_UART) && defined(ENABLE_UART_DEBUG)
+		UART_printf("mode %u\r\n", mode);
+	#endif
 }
 
 void AUDIO_PlayBeep(beep_type_t Beep)

driver/bk4819.c

@@ -96,9 +96,9 @@ void BK4819_Init(void)
 		( 8u <<  0));     // AF DAC Gain (after Gain-1 and Gain-2)
 
 	// squelch mode
-//	BK4819_write_reg(0x77, 0x88EF);     // rssi + noise + glitch .. RT-890
+	BK4819_write_reg(0x77, 0x88EF);     // rssi + noise + glitch .. RT-890
 //	BK4819_write_reg(0x77, 0xA8EF);     // rssi + noise + glitch .. default
-	BK4819_write_reg(0x77, 0xAAEF);     // rssi + glitch
+//	BK4819_write_reg(0x77, 0xAAEF);     // rssi + glitch
 //	BK4819_write_reg(0x77, 0xCCEF);     // rssi + noise
 //	BK4819_write_reg(0x77, 0xFFEF);     // rssi
 
@@ -550,6 +550,13 @@ void BK4819_SetupSquelch(
 		uint8_t squelch_close_glitch_thresh,
 		uint8_t squelch_open_glitch_thresh)
 {
+	// squelch mode
+//	BK4819_write_reg(0x77, 0x88EF);     // rssi + noise + glitch .. RT-890
+//	BK4819_write_reg(0x77, 0xA8EF);     // rssi + noise + glitch .. default
+//	BK4819_write_reg(0x77, 0xAAEF);     // rssi + glitch
+//	BK4819_write_reg(0x77, 0xCCEF);     // rssi + noise
+//	BK4819_write_reg(0x77, 0xFFEF);     // rssi
+
 	// REG_70
 	//
 	// <15>   0 Enable TONE1
@@ -590,19 +597,19 @@ void BK4819_SetupSquelch(
 	//         0 ~ 255
 	//
 	BK4819_write_reg(0x4E,  // 01 101 11 1 00000000
-//	#ifndef ENABLE_FASTER_CHANNEL_SCAN
+	#ifndef ENABLE_FASTER_CHANNEL_SCAN
-		// original (*)
+		// original
 		(1u << 14) |                  // 1 ???
 		(5u << 11) |                  // 5  squelch = open  delay .. 0 ~ 7
-		(6u <<  9) |                  // *3  squelch = close delay .. 0 ~ 3
+		(3u <<  9) |                  // 3  squelch = close delay .. 0 ~ 3
 		squelch_open_glitch_thresh);  // 0 ~ 255
-//	#else
+	#else
 		// faster (but twitchier)
-//		(1u << 14) |                  //  1 ???
+		(1u << 14) |                  // 1 ???
-//		(2u << 11) |                  // *5  squelch = open  delay .. 0 ~ 7
+		(2u << 11) |                  // 5  squelch = open  delay .. 0 ~ 7
-//		(1u <<  9) |                  // *3  squelch = close delay .. 0 ~ 3
+		(3u <<  9) |                  // 3  squelch = close delay .. 0 ~ 3
-//		squelch_open_glitch_thresh);  //  0 ~ 255
+		squelch_open_glitch_thresh);  // 0 ~ 255
-//	#endif
+	#endif
 
 	// REG_4F
 	//