Spectrum refactor

Type error corrected

README.md

@@ -21,7 +21,7 @@
    * battery voltage callibration from menu
    * better battery percentage calculation, selectable for 1600mAh or 2200mAh
    * more configurable button functions
-   * longpress MENU as another cofigurable button
+   * longpress MENU as another configurable button
    * better DCS/CTCSS scanning in the menu (`* SCAN` while in RX DCS/CTCSS menu item)
    * Piotr022 s-meter style
    * restore initial freq/channel when scanning stopped with EXIT, remember last found transmission with MENU button

app/action.c

@@ -63,7 +63,6 @@ void ACTION_Power(void)
 		gTxVfo->OUTPUT_POWER = OUTPUT_POWER_LOW;
 
 	gRequestSaveChannel = 1;
-	//gRequestSaveChannel = 2;   // auto save the channel
 
 #ifdef ENABLE_VOICE
 	gAnotherVoiceID   = VOICE_ID_POWER;
@@ -74,8 +73,7 @@ void ACTION_Power(void)
 
 void ACTION_Monitor(void)
 {
-	if (gCurrentFunction != FUNCTION_MONITOR)
+	if (gCurrentFunction != FUNCTION_MONITOR) { // enable the monitor
-	{	// enable the monitor
 		RADIO_SelectVfos();
 #ifdef ENABLE_NOAA
 		if (gRxVfo->CHANNEL_SAVE >= NOAA_CHANNEL_FIRST && gIsNoaaMode)
@@ -88,16 +86,14 @@ void ACTION_Monitor(void)
 
 	gMonitor = false;
 	
-	if (gScanStateDir != SCAN_OFF)
+	if (gScanStateDir != SCAN_OFF) {
-	{
 		gScanPauseDelayIn_10ms = scan_pause_delay_in_1_10ms;
 		gScheduleScanListen    = false;
 		gScanPauseMode         = true;
 	}
 
 #ifdef ENABLE_NOAA
-		if (gEeprom.DUAL_WATCH == DUAL_WATCH_OFF && gIsNoaaMode)
+	if (gEeprom.DUAL_WATCH == DUAL_WATCH_OFF && gIsNoaaMode) {
-		{
 		gNOAA_Countdown_10ms = NOAA_countdown_10ms;
 		gScheduleNOAA        = false;
 	}
@@ -106,8 +102,7 @@ void ACTION_Monitor(void)
 	RADIO_SetupRegisters(true);
 
 #ifdef ENABLE_FMRADIO
-		if (gFmRadioMode)
+	if (gFmRadioMode) {
-		{
 		FM_Start();
 		gRequestDisplayScreen = DISPLAY_FM;
 	}

app/app.c

@@ -173,14 +173,11 @@ static void HandleIncoming(void)
 {
 	bool bFlag;
 
-	if (!g_SquelchLost)
+	if (!g_SquelchLost) {	// squelch is closed
-	{	// squelch is closed
-
 		if (gDTMF_RX_index > 0)
 			DTMF_clear_RX();
 
-		if (gCurrentFunction != FUNCTION_FOREGROUND)
+		if (gCurrentFunction != FUNCTION_FOREGROUND) {
-		{
 			FUNCTION_Select(FUNCTION_FOREGROUND);
 			gUpdateDisplay = true;
 		}
@@ -190,38 +187,30 @@ static void HandleIncoming(void)
 	bFlag = (gScanStateDir == SCAN_OFF && gCurrentCodeType == CODE_TYPE_OFF);
 
 #ifdef ENABLE_NOAA
-		if (IS_NOAA_CHANNEL(gRxVfo->CHANNEL_SAVE) && gNOAACountdown_10ms > 0)
+	if (IS_NOAA_CHANNEL(gRxVfo->CHANNEL_SAVE) && gNOAACountdown_10ms > 0) {
-		{
 		gNOAACountdown_10ms = 0;
 		bFlag               = true;
 	}
 #endif
 
-	if (g_CTCSS_Lost && gCurrentCodeType == CODE_TYPE_CONTINUOUS_TONE)
+	if (g_CTCSS_Lost && gCurrentCodeType == CODE_TYPE_CONTINUOUS_TONE) {
-	{
 		bFlag       = true;
 		gFoundCTCSS = false;
 	}
 
-	if (g_CDCSS_Lost && gCDCSSCodeType == CDCSS_POSITIVE_CODE && (gCurrentCodeType == CODE_TYPE_DIGITAL || gCurrentCodeType == CODE_TYPE_REVERSE_DIGITAL))
+	if (g_CDCSS_Lost && gCDCSSCodeType == CDCSS_POSITIVE_CODE && (gCurrentCodeType == CODE_TYPE_DIGITAL || gCurrentCodeType == CODE_TYPE_REVERSE_DIGITAL)) {
-	{
 		gFoundCDCSS = false;
 	}
-	else
+	else if (!bFlag)
-	if (!bFlag)
 		return;
 
-	if (gScanStateDir == SCAN_OFF)
+	if (gScanStateDir == SCAN_OFF) { // not scanning
-	{	// not scanning
+		if (gRxVfo->DTMF_DECODING_ENABLE || gSetting_KILLED) { // DTMF DCD is enabled
-		if (gRxVfo->DTMF_DECODING_ENABLE || gSetting_KILLED)
-		{	// DTMF DCD is enabled
 
 			DTMF_HandleRequest();
 
-			if (gDTMF_CallState == DTMF_CALL_STATE_NONE)
+			if (gDTMF_CallState == DTMF_CALL_STATE_NONE) {
-			{
+				if (gRxReceptionMode == RX_MODE_DETECTED) {
-				if (gRxReceptionMode == RX_MODE_DETECTED)
-				{
 					gDualWatchCountdown_10ms = dual_watch_count_after_1_10ms;
 					gScheduleDualWatch       = false;
 
@@ -766,6 +755,9 @@ void APP_EndTransmission(void)
 	// send the CTCSS/DCS tail tone - allows the receivers to mute the usual FM squelch tail/crash
 	RADIO_EnableCxCSS();
 	RADIO_SetupRegisters(false);
+
+	if (gMonitor)
+		gFlagReconfigureVfos = true; //turn the monitor back on
 }
 
 #ifdef ENABLE_VOX
@@ -1726,6 +1718,9 @@ static void ProcessKey(KEY_Code_t Key, bool bKeyPressed, bool bKeyHeld)
 
 			// cancel user input
 			cancelUserInputModes();
+			
+			if (gMonitor)
+				ACTION_Monitor(); //turn off the monitor
 		}
 
 		if (gScreenToDisplay == DISPLAY_MENU)       // 1of11

app/spectrum.c

@@ -17,6 +17,7 @@
 #include "app/spectrum.h"
 #include "driver/backlight.h"
 #include "audio.h"
+#include "ui/helper.h"
 
 struct FrequencyBandInfo {
     uint32_t lower;
@@ -125,21 +126,13 @@ static void SetRegMenuValue(uint8_t st, bool add) {
 // GUI functions
 
 static void PutPixel(uint8_t x, uint8_t y, bool fill) {
-  if (fill) {
+  UI_DrawPixelBuffer(gFrameBuffer, x, y, fill);
-    gFrameBuffer[y >> 3][x] |= 1 << (y & 7);
-  } else {
-    gFrameBuffer[y >> 3][x] &= ~(1 << (y & 7));
-  }
 }
 static void PutPixelStatus(uint8_t x, uint8_t y, bool fill) {
-  if (fill) {
+  UI_DrawPixelBuffer(&gStatusLine, x, y, fill);
-    gStatusLine[x] |= 1 << y;
-  } else {
-    gStatusLine[x] &= ~(1 << y);
-  }
 }
 
-static void DrawHLine(int sy, int ey, int nx, bool fill) {
+static void DrawVLine(int sy, int ey, int nx, bool fill) {
   for (int i = sy; i <= ey; i++) {
     if (i < 56 && nx < 128) {
       PutPixel(nx, i, fill);
@@ -606,7 +599,7 @@ static void DrawSpectrum() {
   for (uint8_t x = 0; x < 128; ++x) {
     uint16_t rssi = rssiHistory[x >> settings.stepsCount];
     if (rssi != RSSI_MAX_VALUE) {
-      DrawHLine(Rssi2Y(rssi), DrawingEndY, x, true);
+      DrawVLine(Rssi2Y(rssi), DrawingEndY, x, true);
     }
   }
 }
@@ -620,36 +613,28 @@ static void DrawStatus() {
 #endif
   GUI_DisplaySmallest(String, 0, 1, true, true);
 
-  for (int i = 0; i < 4; i++) {
+  BOARD_ADC_GetBatteryInfo(&gBatteryVoltages[gBatteryCheckCounter++ % 4], &gBatteryCurrent);
-    BOARD_ADC_GetBatteryInfo(&gBatteryVoltages[i], &gBatteryCurrent);
-  }
 
-  uint16_t Voltage;
+  uint16_t voltage = (gBatteryVoltages[0] + gBatteryVoltages[1] + gBatteryVoltages[2] +
-  uint8_t v = 0;
-
-  Voltage = (gBatteryVoltages[0] + gBatteryVoltages[1] + gBatteryVoltages[2] +
              gBatteryVoltages[3]) /
-            4;
+            4 * 760 / gBatteryCalibration[3];
 
-for(uint8_t i = 5; i > 0; i--) {
+  unsigned perc = BATTERY_VoltsToPercent(voltage);
-  if(Voltage > gBatteryCalibration[i - 1]) {
+
-    v = i;
+  // sprintf(String, "%d %d", voltage, perc);
-    break;
+  // GUI_DisplaySmallest(String, 48, 1, true, true);
-  }
+
+  gStatusLine[116] = 0b00011100;
+  gStatusLine[117] = 0b00111110;
+  for (int i = 118; i <= 126; i++) {
+    gStatusLine[i] = 0b00100010;
   }
   
-  gStatusLine[127] = 0b01111110;
+  for (unsigned i = 127; i >= 118; i--) {
-  for (int i = 126; i >= 116; i--) {
+    if (127 - i <= (perc+5)*9/100) {
-    gStatusLine[i] = 0b01000010;
+      gStatusLine[i] = 0b00111110;
-  }
-  v <<= 1;
-  for (int i = 125; i >= 116; i--) {
-    if (126 - i <= v) {
-      gStatusLine[i + 2] = 0b01111110;
     }
   }
-  gStatusLine[117] = 0b01111110;
-  gStatusLine[116] = 0b00011000;
 }
 
 static void DrawF(uint32_t f) {
@@ -712,19 +697,13 @@ static void DrawTicks() {
 
   // center
   if (IsCenterMode()) {
-    gFrameBuffer[5][62] = 0x80;
+    memset(gFrameBuffer[5] + 62, 0x80, 5);
-    gFrameBuffer[5][63] = 0x80;
     gFrameBuffer[5][64] = 0xff;
-    gFrameBuffer[5][65] = 0x80;
-    gFrameBuffer[5][66] = 0x80;
   } else {
+    memset(gFrameBuffer[5] + 1, 0x80, 3);
+    memset(gFrameBuffer[5] + 124, 0x80, 3);
+
     gFrameBuffer[5][0] = 0xff;
-    gFrameBuffer[5][1] = 0x80;
-    gFrameBuffer[5][2] = 0x80;
-    gFrameBuffer[5][3] = 0x80;
-    gFrameBuffer[5][124] = 0x80;
-    gFrameBuffer[5][125] = 0x80;
-    gFrameBuffer[5][126] = 0x80;
     gFrameBuffer[5][127] = 0xff;
   }
 }

board.c

@@ -727,6 +727,13 @@ void BOARD_EEPROM_Init(void)
 
 	// 0D60..0E27
 	EEPROM_ReadBuffer(0x0D60, gMR_ChannelAttributes, sizeof(gMR_ChannelAttributes));
+	for(uint16_t i = 0; i < sizeof(gMR_ChannelAttributes); i++) {
+		ChannelAttributes_t *att = &gMR_ChannelAttributes[i];
+		if(att->__val == 0xff){
+			att->__val = 0;
+			att->band = 0xf;
+		}	
+	}
 
 	// 0F30..0F3F
 	EEPROM_ReadBuffer(0x0F30, gCustomAesKey, sizeof(gCustomAesKey));

compile-with-docker.bat

@@ -1,4 +1,4 @@
 @echo off
 docker build -t uvk5 .
-docker run -v %CD%\compiled-firmware:/app/compiled-firmware uvk5 /bin/bash -c "cd /app && make clean && make && cp firmware* compiled-firmware/"
+docker run --rm -v %CD%\compiled-firmware:/app/compiled-firmware uvk5 /bin/bash -c "cd /app && make clean && make && cp firmware* compiled-firmware/"
 pause

compile-with-docker.sh

@@ -1,3 +1,3 @@
 #!/bin/sh
 docker build -t uvk5 .
-docker run -v ${PWD}/compiled-firmware:/app/compiled-firmware uvk5 /bin/bash -c "cd /app && make && cp firmware* compiled-firmware/"
+docker run --rm -v ${PWD}/compiled-firmware:/app/compiled-firmware uvk5 /bin/bash -c "cd /app && make && cp firmware* compiled-firmware/"

driver/bk4819.c

@@ -30,6 +30,9 @@
 
 static const uint16_t FSK_RogerTable[7] = {0xF1A2, 0x7446, 0x61A4, 0x6544, 0x4E8A, 0xE044, 0xEA84};
 
+static const uint8_t DTMF_TONE1_GAIN = 65;
+static const uint8_t DTMF_TONE2_GAIN = 93;
+
 static uint16_t gBK4819_GpioOutState;
 
 bool gRxIdleMode;
@@ -984,15 +987,15 @@ void BK4819_EnableDTMF(void)
 
 void BK4819_PlayTone(uint16_t Frequency, bool bTuningGainSwitch)
 {
-	uint16_t ToneConfig;
+	uint16_t ToneConfig = BK4819_REG_70_ENABLE_TONE1;
 
 	BK4819_EnterTxMute();
 	BK4819_SetAF(BK4819_AF_BEEP);
 
 	if (bTuningGainSwitch == 0)
-		ToneConfig = BK4819_REG_70_ENABLE_TONE1 | (96u << BK4819_REG_70_SHIFT_TONE1_TUNING_GAIN);
+		ToneConfig |=  96u << BK4819_REG_70_SHIFT_TONE1_TUNING_GAIN;
 	else
-		ToneConfig = BK4819_REG_70_ENABLE_TONE1 | (28u << BK4819_REG_70_SHIFT_TONE1_TUNING_GAIN);
+		ToneConfig |= 28u << BK4819_REG_70_SHIFT_TONE1_TUNING_GAIN;
 	BK4819_WriteRegister(BK4819_REG_70, ToneConfig);
 
 	BK4819_WriteRegister(BK4819_REG_30, 0);
@@ -1001,6 +1004,7 @@ void BK4819_PlayTone(uint16_t Frequency, bool bTuningGainSwitch)
 	BK4819_WriteRegister(BK4819_REG_71, scale_freq(Frequency));
 }
 
+// level 0 ~ 127
 void BK4819_PlaySingleTone(const unsigned int tone_Hz, const unsigned int delay, const unsigned int level, const bool play_speaker)
 {
 	BK4819_EnterTxMute();
@@ -1013,9 +1017,7 @@ void BK4819_PlaySingleTone(const unsigned int tone_Hz, const unsigned int delay,
 	else
 		BK4819_SetAF(BK4819_AF_MUTE);
 
-	// level 0 ~ 127
+	
-//	BK4819_WriteRegister(BK4819_REG_70, BK4819_REG_70_ENABLE_TONE1 | (96u << BK4819_REG_70_SHIFT_TONE1_TUNING_GAIN));
-//	BK4819_WriteRegister(BK4819_REG_70, BK4819_REG_70_ENABLE_TONE1 | (28u << BK4819_REG_70_SHIFT_TONE1_TUNING_GAIN));
 	BK4819_WriteRegister(BK4819_REG_70, BK4819_REG_70_ENABLE_TONE1 | ((level & 0x7f) << BK4819_REG_70_SHIFT_TONE1_TUNING_GAIN));
 
 	BK4819_EnableTXLink();
@@ -1209,9 +1211,9 @@ void BK4819_EnterDTMF_TX(bool bLocalLoopback)
 
 	BK4819_WriteRegister(BK4819_REG_70,
 		BK4819_REG_70_MASK_ENABLE_TONE1                |
-		(83u << BK4819_REG_70_SHIFT_TONE1_TUNING_GAIN) |
+		(DTMF_TONE1_GAIN << BK4819_REG_70_SHIFT_TONE1_TUNING_GAIN) |
 		BK4819_REG_70_MASK_ENABLE_TONE2                |
-		(83u << BK4819_REG_70_SHIFT_TONE2_TUNING_GAIN));
+		(DTMF_TONE2_GAIN << BK4819_REG_70_SHIFT_TONE2_TUNING_GAIN));
 
 	BK4819_EnableTXLink();
 }
@@ -1250,16 +1252,16 @@ void BK4819_PlayDTMF(char Code)
 	switch (Code)
 	{
 		case '0': tone1 = 941; tone2 = 1336; break;
-		case '1': tone1 = 679; tone2 = 1209; break;
+		case '1': tone1 = 697; tone2 = 1209; break;
 		case '2': tone1 = 697; tone2 = 1336; break;
-		case '3': tone1 = 679; tone2 = 1477; break;
+		case '3': tone1 = 697; tone2 = 1477; break;
 		case '4': tone1 = 770; tone2 = 1209; break;
 		case '5': tone1 = 770; tone2 = 1336; break;
 		case '6': tone1 = 770; tone2 = 1477; break;
 		case '7': tone1 = 852; tone2 = 1209; break;
 		case '8': tone1 = 852; tone2 = 1336; break;
 		case '9': tone1 = 852; tone2 = 1477; break;
-		case 'A': tone1 = 679; tone2 = 1633; break;
+		case 'A': tone1 = 697; tone2 = 1633; break;
 		case 'B': tone1 = 770; tone2 = 1633; break;
 		case 'C': tone1 = 852; tone2 = 1633; break;
 		case 'D': tone1 = 941; tone2 = 1633; break;
@@ -1320,8 +1322,7 @@ void BK4819_TransmitTone(bool bLocalLoopback, uint32_t Frequency)
 	//
 	// set the tone amplitude
 	//
-//	BK4819_WriteRegister(BK4819_REG_70, BK4819_REG_70_MASK_ENABLE_TONE1 | (96u << BK4819_REG_70_SHIFT_TONE1_TUNING_GAIN));
+	BK4819_WriteRegister(BK4819_REG_70, BK4819_REG_70_MASK_ENABLE_TONE1 | (66u << BK4819_REG_70_SHIFT_TONE1_TUNING_GAIN));
-	BK4819_WriteRegister(BK4819_REG_70, BK4819_REG_70_MASK_ENABLE_TONE1 | (28u << BK4819_REG_70_SHIFT_TONE1_TUNING_GAIN));
 
 	BK4819_WriteRegister(BK4819_REG_71, scale_freq(Frequency));
 
@@ -1700,8 +1701,7 @@ void BK4819_PlayRoger(void)
 	BK4819_EnterTxMute();
 	BK4819_SetAF(BK4819_AF_MUTE);
 
-//	BK4819_WriteRegister(BK4819_REG_70, BK4819_REG_70_ENABLE_TONE1 | (96u << BK4819_REG_70_SHIFT_TONE1_TUNING_GAIN));
+	BK4819_WriteRegister(BK4819_REG_70, BK4819_REG_70_ENABLE_TONE1 | (66u << BK4819_REG_70_SHIFT_TONE1_TUNING_GAIN));
-	BK4819_WriteRegister(BK4819_REG_70, BK4819_REG_70_ENABLE_TONE1 | (28u << BK4819_REG_70_SHIFT_TONE1_TUNING_GAIN));
 
 	BK4819_EnableTXLink();
 	SYSTEM_DelayMs(50);
@@ -1782,7 +1782,12 @@ void BK4819_PlayDTMFEx(bool bLocalLoopback, char Code)
 	BK4819_EnterTxMute();
 
 	BK4819_SetAF(bLocalLoopback ? BK4819_AF_BEEP : BK4819_AF_MUTE);
-	BK4819_WriteRegister(BK4819_REG_70, 0xD3D3);
+
+	BK4819_WriteRegister(BK4819_REG_70,
+		BK4819_REG_70_MASK_ENABLE_TONE1                |
+		(DTMF_TONE1_GAIN << BK4819_REG_70_SHIFT_TONE1_TUNING_GAIN) |
+		BK4819_REG_70_MASK_ENABLE_TONE2                |
+		(DTMF_TONE2_GAIN << BK4819_REG_70_SHIFT_TONE2_TUNING_GAIN));
 
 	BK4819_EnableTXLink();
 

misc.c

@@ -111,7 +111,7 @@ uint16_t          gEEPROM_RSSI_CALIB[7][4];
 uint16_t          gEEPROM_1F8A;
 uint16_t          gEEPROM_1F8C;
 
-uint8_t           gMR_ChannelAttributes[FREQ_CHANNEL_LAST + 1];
+ChannelAttributes_t gMR_ChannelAttributes[FREQ_CHANNEL_LAST + 1];
 
 volatile uint16_t gBatterySaveCountdown_10ms = battery_save_count_10ms;
 

misc.h

@@ -176,7 +176,18 @@ extern uint16_t              gEEPROM_RSSI_CALIB[7][4];
 extern uint16_t              gEEPROM_1F8A;
 extern uint16_t              gEEPROM_1F8C;
 
-extern uint8_t               gMR_ChannelAttributes[207];
+typedef union { 
+    struct {
+        uint8_t
+            band : 4,
+            compander : 2,
+            scanlist2 : 1,
+            scanlist1 : 1;
+    };
+    uint8_t __val;
+} ChannelAttributes_t;
+
+extern ChannelAttributes_t   gMR_ChannelAttributes[207];
 
 extern volatile uint16_t     gBatterySaveCountdown_10ms;
 

radio.c

@@ -56,24 +56,22 @@ const char gModulationStr[][4] =
 bool RADIO_CheckValidChannel(uint16_t Channel, bool bCheckScanList, uint8_t VFO)
 {	// return true if the channel appears valid
 
-	uint8_t Attributes;
+	ChannelAttributes_t att;
 	uint8_t PriorityCh1;
 	uint8_t PriorityCh2;
 
 	if (!IS_MR_CHANNEL(Channel))
 		return false;
 
-	Attributes = gMR_ChannelAttributes[Channel];
+	att = gMR_ChannelAttributes[Channel];
 
-	if ((Attributes & MR_CH_BAND_MASK) > BAND7_470MHz)
+	if (att.band > BAND7_470MHz)
 		return false;
 
-	if (bCheckScanList)
+	if (bCheckScanList) {
-	{
+		switch (VFO) {
-		switch (VFO)
-		{
 			case 0:
-				if ((Attributes & MR_CH_SCANLIST1) == 0)
+				if (!att.scanlist1)
 					return false;
 
 				PriorityCh1 = gEeprom.SCANLIST_PRIORITY_CH1[0];
@@ -81,7 +79,7 @@ bool RADIO_CheckValidChannel(uint16_t Channel, bool bCheckScanList, uint8_t VFO)
 				break;
 
 			case 1:
-				if ((Attributes & MR_CH_SCANLIST2) == 0)
+				if (!att.scanlist2)
 					return false;
 
 				PriorityCh1 = gEeprom.SCANLIST_PRIORITY_CH1[1];
@@ -128,8 +126,8 @@ void RADIO_InitInfo(VFO_Info_t *pInfo, const uint8_t ChannelSave, const uint32_t
 	memset(pInfo, 0, sizeof(*pInfo));
 
 	pInfo->Band                     = FREQUENCY_GetBand(Frequency);
-	pInfo->SCANLIST1_PARTICIPATION  = true;
+	pInfo->SCANLIST1_PARTICIPATION  = false;
-	pInfo->SCANLIST2_PARTICIPATION  = true;
+	pInfo->SCANLIST2_PARTICIPATION  = false;
 	pInfo->STEP_SETTING             = STEP_12_5kHz;
 	pInfo->StepFrequency            = gStepFrequencyTable[pInfo->STEP_SETTING];
 	pInfo->CHANNEL_SAVE             = ChannelSave;
@@ -143,37 +141,31 @@ void RADIO_InitInfo(VFO_Info_t *pInfo, const uint8_t ChannelSave, const uint32_t
 
 	if (ChannelSave == (FREQ_CHANNEL_FIRST + BAND2_108MHz))
 		pInfo->Modulation = MODULATION_AM;
+	else
+		pInfo->Modulation = MODULATION_FM;
 		
 	RADIO_ConfigureSquelchAndOutputPower(pInfo);
 }
 
 void RADIO_ConfigureChannel(const unsigned int VFO, const unsigned int configure)
 {
-	uint8_t     Channel;
+	VFO_Info_t *pVfo = &gEeprom.VfoInfo[VFO];
-	uint8_t     Attributes;
-	uint8_t     Band;
-	bool        bParticipation2;
-	uint16_t    Base;
-	uint32_t    Frequency;
-	VFO_Info_t *pRadio = &gEeprom.VfoInfo[VFO];
 
-	if (!gSetting_350EN)
+	if (!gSetting_350EN) {
-	{
+		if (gEeprom.FreqChannel[VFO] == FREQ_CHANNEL_FIRST + BAND5_350MHz)
-		if (gEeprom.FreqChannel[VFO] == (FREQ_CHANNEL_LAST - 2))
+			gEeprom.FreqChannel[VFO] = FREQ_CHANNEL_FIRST + BAND6_400MHz;
-			gEeprom.FreqChannel[VFO] = FREQ_CHANNEL_LAST - 1;
 
-		if (gEeprom.ScreenChannel[VFO] == (FREQ_CHANNEL_LAST - 2))
+		if (gEeprom.ScreenChannel[VFO] == FREQ_CHANNEL_FIRST + BAND5_350MHz)
-			gEeprom.ScreenChannel[VFO] = FREQ_CHANNEL_LAST - 1;
+			gEeprom.ScreenChannel[VFO] = FREQ_CHANNEL_FIRST + BAND6_400MHz;
 	}
 
-	Channel = gEeprom.ScreenChannel[VFO];
+	uint8_t channel = gEeprom.ScreenChannel[VFO];
 
-	if (IS_VALID_CHANNEL(Channel))
+	if (IS_VALID_CHANNEL(channel)) {
-	{
 #ifdef ENABLE_NOAA
-		if (Channel >= NOAA_CHANNEL_FIRST)
+		if (channel >= NOAA_CHANNEL_FIRST)
 		{
-			RADIO_InitInfo(pRadio, gEeprom.ScreenChannel[VFO], NoaaFrequencyTable[Channel - NOAA_CHANNEL_FIRST]);
+			RADIO_InitInfo(pVfo, gEeprom.ScreenChannel[VFO], NoaaFrequencyTable[channel - NOAA_CHANNEL_FIRST]);
 
 			if (gEeprom.CROSS_BAND_RX_TX == CROSS_BAND_OFF)
 				return;
@@ -185,248 +177,240 @@ void RADIO_ConfigureChannel(const unsigned int VFO, const unsigned int configure
 		}
 #endif
 
-		if (IS_MR_CHANNEL(Channel))
+		if (IS_MR_CHANNEL(channel)) {
-		{
+			channel = RADIO_FindNextChannel(channel, RADIO_CHANNEL_UP, false, VFO);
-			Channel = RADIO_FindNextChannel(Channel, RADIO_CHANNEL_UP, false, VFO);
+			if (channel == 0xFF) {
-			if (Channel == 0xFF)
+				channel                    = gEeprom.FreqChannel[VFO];
-			{
-				Channel                    = gEeprom.FreqChannel[VFO];
 				gEeprom.ScreenChannel[VFO] = gEeprom.FreqChannel[VFO];
 			}
-			else
+			else {
-			{
+				gEeprom.ScreenChannel[VFO] = channel;
-				gEeprom.ScreenChannel[VFO] = Channel;
+				gEeprom.MrChannel[VFO]     = channel;
-				gEeprom.MrChannel[VFO]     = Channel;
 			}
 		}
 	}
 	else
-		Channel = FREQ_CHANNEL_LAST - 1;
+		channel = FREQ_CHANNEL_LAST - 1;
 
-	Attributes = gMR_ChannelAttributes[Channel];
+	ChannelAttributes_t att = gMR_ChannelAttributes[channel];
-	if (Attributes == 0xFF)
+	if (att.__val == 0xFF) { // invalid/unused channel
-	{	// invalid/unused channel
+		if (IS_MR_CHANNEL(channel)) {
-
+			channel                    = gEeprom.FreqChannel[VFO];
-		uint8_t Index;
+			gEeprom.ScreenChannel[VFO] = channel;
-
-		if (IS_MR_CHANNEL(Channel))
-		{
-			Channel                    = gEeprom.FreqChannel[VFO];
-			gEeprom.ScreenChannel[VFO] = gEeprom.FreqChannel[VFO];
 		}
 
-		Index = Channel - FREQ_CHANNEL_FIRST;
+		uint8_t bandIdx = channel - FREQ_CHANNEL_FIRST;
-
+		RADIO_InitInfo(pVfo, channel, frequencyBandTable[bandIdx].lower);
-		RADIO_InitInfo(pRadio, Channel, frequencyBandTable[Index].lower);
 		return;
 	}
 
-	Band = Attributes & MR_CH_BAND_MASK;
+	uint8_t band = att.band;
-	if (Band > BAND7_470MHz)
+	if (band > BAND7_470MHz) {
-	{
+		band = BAND6_400MHz;
-		Band = BAND6_400MHz;
 	}
 
-	if (IS_MR_CHANNEL(Channel))
+	bool bParticipation1;
-	{
+	bool bParticipation2;
-		gEeprom.VfoInfo[VFO].Band                    = Band;
+	if (IS_MR_CHANNEL(channel)) {
-		gEeprom.VfoInfo[VFO].SCANLIST1_PARTICIPATION = !!(Attributes & MR_CH_SCANLIST1);
+		bParticipation1 = att.scanlist1;
-		bParticipation2                              = !!(Attributes & MR_CH_SCANLIST2);
+		bParticipation2 = att.scanlist2;
 	}
-	else
+	else {
-	{
+		band = channel - FREQ_CHANNEL_FIRST;
-		Band                                         = Channel - FREQ_CHANNEL_FIRST;
+		bParticipation1 = true;
-		gEeprom.VfoInfo[VFO].Band                    = Band;
 		bParticipation2 = true;
-		gEeprom.VfoInfo[VFO].SCANLIST1_PARTICIPATION = true;
 	}
 
-	gEeprom.VfoInfo[VFO].SCANLIST2_PARTICIPATION = bParticipation2;
+	pVfo->Band                    = band;
-	gEeprom.VfoInfo[VFO].CHANNEL_SAVE            = Channel;
+	pVfo->SCANLIST1_PARTICIPATION = bParticipation1;
+	pVfo->SCANLIST2_PARTICIPATION = bParticipation2;
+	pVfo->CHANNEL_SAVE            = channel;
 
-	if (IS_MR_CHANNEL(Channel))
+	uint16_t base;
-		Base = Channel * 16;
+	if (IS_MR_CHANNEL(channel))
+		base = channel * 16;
 	else
-		Base = 0x0C80 + ((Channel - FREQ_CHANNEL_FIRST) * 32) + (VFO * 16);
+		base = 0x0C80 + ((channel - FREQ_CHANNEL_FIRST) * 32) + (VFO * 16);
 
-	if (configure == VFO_CONFIGURE_RELOAD || Channel >= FREQ_CHANNEL_FIRST)
+	if (configure == VFO_CONFIGURE_RELOAD || IS_FREQ_CHANNEL(channel))
 	{
-		uint8_t Tmp;
+		uint8_t tmp;
-		uint8_t Data[8];
+		uint8_t data[8];
 
 		// ***************
 
-		EEPROM_ReadBuffer(Base + 8, Data, sizeof(Data));
+		EEPROM_ReadBuffer(base + 8, data, sizeof(data));
 
-		Tmp = Data[3] & 0x0F;
+		tmp = data[3] & 0x0F;
-		if (Tmp > TX_OFFSET_FREQUENCY_DIRECTION_SUB)
+		if (tmp > TX_OFFSET_FREQUENCY_DIRECTION_SUB)
-			Tmp = 0;
+			tmp = 0;
-		gEeprom.VfoInfo[VFO].TX_OFFSET_FREQUENCY_DIRECTION = Tmp;
+		pVfo->TX_OFFSET_FREQUENCY_DIRECTION = tmp;
-		gEeprom.VfoInfo[VFO].Modulation = (Data[3] >> 4);
+		tmp = data[3] >> 4;
+		if (tmp >= MODULATION_UKNOWN)
+			tmp = MODULATION_FM;		
+		pVfo->Modulation = tmp;
 
-		Tmp = Data[6];
+		tmp = data[6];
-		if (Tmp >= ARRAY_SIZE(gStepFrequencyTable))
+		if (tmp >= ARRAY_SIZE(gStepFrequencyTable))
-			Tmp = STEP_12_5kHz;
+			tmp = STEP_12_5kHz;
-		gEeprom.VfoInfo[VFO].STEP_SETTING  = Tmp;
+		pVfo->STEP_SETTING  = tmp;
-		gEeprom.VfoInfo[VFO].StepFrequency = gStepFrequencyTable[Tmp];
+		pVfo->StepFrequency = gStepFrequencyTable[tmp];
 
-		Tmp = Data[7];
+		tmp = data[7];
-		if (Tmp > (ARRAY_SIZE(gSubMenu_SCRAMBLER) - 1))
+		if (tmp > (ARRAY_SIZE(gSubMenu_SCRAMBLER) - 1))
-			Tmp = 0;
+			tmp = 0;
-		gEeprom.VfoInfo[VFO].SCRAMBLING_TYPE = Tmp;
+		pVfo->SCRAMBLING_TYPE = tmp;
 
-		gEeprom.VfoInfo[VFO].freq_config_RX.CodeType = (Data[2] >> 0) & 0x0F;
+		pVfo->freq_config_RX.CodeType = (data[2] >> 0) & 0x0F;
-		gEeprom.VfoInfo[VFO].freq_config_TX.CodeType = (Data[2] >> 4) & 0x0F;
+		pVfo->freq_config_TX.CodeType = (data[2] >> 4) & 0x0F;
 
-		Tmp = Data[0];
+		tmp = data[0];
-		switch (gEeprom.VfoInfo[VFO].freq_config_RX.CodeType)
+		switch (pVfo->freq_config_RX.CodeType)
 		{
 			default:
 			case CODE_TYPE_OFF:
-				gEeprom.VfoInfo[VFO].freq_config_RX.CodeType = CODE_TYPE_OFF;
+				pVfo->freq_config_RX.CodeType = CODE_TYPE_OFF;
-				Tmp = 0;
+				tmp = 0;
 				break;
 
 			case CODE_TYPE_CONTINUOUS_TONE:
-				if (Tmp > (ARRAY_SIZE(CTCSS_Options) - 1))
+				if (tmp > (ARRAY_SIZE(CTCSS_Options) - 1))
-					Tmp = 0;
+					tmp = 0;
 				break;
 
 			case CODE_TYPE_DIGITAL:
 			case CODE_TYPE_REVERSE_DIGITAL:
-				if (Tmp > (ARRAY_SIZE(DCS_Options) - 1))
+				if (tmp > (ARRAY_SIZE(DCS_Options) - 1))
-					Tmp = 0;
+					tmp = 0;
 				break;
 		}
-		gEeprom.VfoInfo[VFO].freq_config_RX.Code = Tmp;
+		pVfo->freq_config_RX.Code = tmp;
 
-		Tmp = Data[1];
+		tmp = data[1];
-		switch (gEeprom.VfoInfo[VFO].freq_config_TX.CodeType)
+		switch (pVfo->freq_config_TX.CodeType)
 		{
 			default:
 			case CODE_TYPE_OFF:
-				gEeprom.VfoInfo[VFO].freq_config_TX.CodeType = CODE_TYPE_OFF;
+				pVfo->freq_config_TX.CodeType = CODE_TYPE_OFF;
-				Tmp = 0;
+				tmp = 0;
 				break;
 
 			case CODE_TYPE_CONTINUOUS_TONE:
-				if (Tmp > (ARRAY_SIZE(CTCSS_Options) - 1))
+				if (tmp > (ARRAY_SIZE(CTCSS_Options) - 1))
-					Tmp = 0;
+					tmp = 0;
 				break;
 
 			case CODE_TYPE_DIGITAL:
 			case CODE_TYPE_REVERSE_DIGITAL:
-				if (Tmp > (ARRAY_SIZE(DCS_Options) - 1))
+				if (tmp > (ARRAY_SIZE(DCS_Options) - 1))
-					Tmp = 0;
+					tmp = 0;
 				break;
 		}
-		gEeprom.VfoInfo[VFO].freq_config_TX.Code = Tmp;
+		pVfo->freq_config_TX.Code = tmp;
 
-		if (Data[4] == 0xFF)
+		if (data[4] == 0xFF)
 		{
-			gEeprom.VfoInfo[VFO].FrequencyReverse  = false;
+			pVfo->FrequencyReverse  = false;
-			gEeprom.VfoInfo[VFO].CHANNEL_BANDWIDTH = BK4819_FILTER_BW_WIDE;
+			pVfo->CHANNEL_BANDWIDTH = BK4819_FILTER_BW_WIDE;
-			gEeprom.VfoInfo[VFO].OUTPUT_POWER      = OUTPUT_POWER_LOW;
+			pVfo->OUTPUT_POWER      = OUTPUT_POWER_LOW;
-			gEeprom.VfoInfo[VFO].BUSY_CHANNEL_LOCK = false;
+			pVfo->BUSY_CHANNEL_LOCK = false;
 		}
 		else
 		{
-			const uint8_t d4 = Data[4];
+			const uint8_t d4 = data[4];
-			gEeprom.VfoInfo[VFO].FrequencyReverse  = !!((d4 >> 0) & 1u);
+			pVfo->FrequencyReverse  = !!((d4 >> 0) & 1u);
-			gEeprom.VfoInfo[VFO].CHANNEL_BANDWIDTH = !!((d4 >> 1) & 1u);
+			pVfo->CHANNEL_BANDWIDTH = !!((d4 >> 1) & 1u);
-			gEeprom.VfoInfo[VFO].OUTPUT_POWER      =   ((d4 >> 2) & 3u);
+			pVfo->OUTPUT_POWER      =   ((d4 >> 2) & 3u);
-			gEeprom.VfoInfo[VFO].BUSY_CHANNEL_LOCK = !!((d4 >> 4) & 1u);
+			pVfo->BUSY_CHANNEL_LOCK = !!((d4 >> 4) & 1u);
 		}
 
-		if (Data[5] == 0xFF)
+		if (data[5] == 0xFF)
 		{
-			gEeprom.VfoInfo[VFO].DTMF_DECODING_ENABLE = false;
+			pVfo->DTMF_DECODING_ENABLE = false;
-			gEeprom.VfoInfo[VFO].DTMF_PTT_ID_TX_MODE  = PTT_ID_OFF;
+			pVfo->DTMF_PTT_ID_TX_MODE  = PTT_ID_OFF;
 		}
 		else
 		{
-			gEeprom.VfoInfo[VFO].DTMF_DECODING_ENABLE = ((Data[5] >> 0) & 1u) ? true : false;
+			pVfo->DTMF_DECODING_ENABLE = ((data[5] >> 0) & 1u) ? true : false;
-			gEeprom.VfoInfo[VFO].DTMF_PTT_ID_TX_MODE  = ((Data[5] >> 1) & 7u);
+			pVfo->DTMF_PTT_ID_TX_MODE  = ((data[5] >> 1) & 7u);
 		}
 
 		// ***************
 
-		struct
+		struct {
-		{
 			uint32_t Frequency;
 			uint32_t Offset;
-		} __attribute__((packed)) Info;
+		} __attribute__((packed)) info;
+		EEPROM_ReadBuffer(base, &info, sizeof(info));
+		if(info.Frequency==0xFFFFFFFF)
+			pVfo->freq_config_RX.Frequency = frequencyBandTable[band].lower;
+		else
+			pVfo->freq_config_RX.Frequency = info.Frequency;
 
-		EEPROM_ReadBuffer(Base, &Info, sizeof(Info));
+		if (info.Offset >= 100000000)
-
+			info.Offset = 1000000;
-		pRadio->freq_config_RX.Frequency = Info.Frequency;
+		pVfo->TX_OFFSET_FREQUENCY = info.Offset;
-
-		if (Info.Offset >= 100000000)
-			Info.Offset = 1000000;
-		gEeprom.VfoInfo[VFO].TX_OFFSET_FREQUENCY = Info.Offset;
 
 		// ***************
 	}
 
-	Frequency = pRadio->freq_config_RX.Frequency;
+	uint32_t frequency = pVfo->freq_config_RX.Frequency;
 
 	// fix previously set incorrect band
-	Band = FREQUENCY_GetBand(Frequency);
+	band = FREQUENCY_GetBand(frequency);
 
-	if (Frequency < frequencyBandTable[Band].lower)
+	if (frequency < frequencyBandTable[band].lower)
-		Frequency = frequencyBandTable[Band].lower;
+		frequency = frequencyBandTable[band].lower;
-	else
+	else if (frequency > frequencyBandTable[band].upper)
-	if (Frequency > frequencyBandTable[Band].upper)
+		frequency = frequencyBandTable[band].upper;
-		Frequency = frequencyBandTable[Band].upper;
+	else if (channel >= FREQ_CHANNEL_FIRST)
-	else
+		frequency = FREQUENCY_RoundToStep(frequency, pVfo->StepFrequency);
-	if (Channel >= FREQ_CHANNEL_FIRST)
-		Frequency = FREQUENCY_RoundToStep(Frequency, gEeprom.VfoInfo[VFO].StepFrequency);
 
-	pRadio->freq_config_RX.Frequency = Frequency;
+	pVfo->freq_config_RX.Frequency = frequency;
 
-	if (Frequency >= frequencyBandTable[BAND2_108MHz].upper && Frequency < frequencyBandTable[BAND2_108MHz].upper)
+	if (frequency >= frequencyBandTable[BAND2_108MHz].upper && frequency < frequencyBandTable[BAND2_108MHz].upper)
-		gEeprom.VfoInfo[VFO].TX_OFFSET_FREQUENCY_DIRECTION = TX_OFFSET_FREQUENCY_DIRECTION_OFF;
+		pVfo->TX_OFFSET_FREQUENCY_DIRECTION = TX_OFFSET_FREQUENCY_DIRECTION_OFF;
-	else if (!IS_MR_CHANNEL(Channel))
+	else if (!IS_MR_CHANNEL(channel))
-		gEeprom.VfoInfo[VFO].TX_OFFSET_FREQUENCY = FREQUENCY_RoundToStep(gEeprom.VfoInfo[VFO].TX_OFFSET_FREQUENCY, gEeprom.VfoInfo[VFO].StepFrequency);
+		pVfo->TX_OFFSET_FREQUENCY = FREQUENCY_RoundToStep(pVfo->TX_OFFSET_FREQUENCY, pVfo->StepFrequency);
 
-	RADIO_ApplyOffset(pRadio);
+	RADIO_ApplyOffset(pVfo);
 
-	memset(gEeprom.VfoInfo[VFO].Name, 0, sizeof(gEeprom.VfoInfo[VFO].Name));
+	memset(pVfo->Name, 0, sizeof(pVfo->Name));
-	if (IS_MR_CHANNEL(Channel))
+	if (IS_MR_CHANNEL(channel))
 	{	// 16 bytes allocated to the channel name but only 10 used, the rest are 0's
-		EEPROM_ReadBuffer(0x0F50 + (Channel * 16), gEeprom.VfoInfo[VFO].Name + 0, 8);
+		EEPROM_ReadBuffer(0x0F50 + (channel * 16), pVfo->Name + 0, 8);
-		EEPROM_ReadBuffer(0x0F58 + (Channel * 16), gEeprom.VfoInfo[VFO].Name + 8, 2);
+		EEPROM_ReadBuffer(0x0F58 + (channel * 16), pVfo->Name + 8, 2);
 	}
 
-	if (!gEeprom.VfoInfo[VFO].FrequencyReverse)
+	if (!pVfo->FrequencyReverse)
 	{
-		gEeprom.VfoInfo[VFO].pRX = &gEeprom.VfoInfo[VFO].freq_config_RX;
+		pVfo->pRX = &pVfo->freq_config_RX;
-		gEeprom.VfoInfo[VFO].pTX = &gEeprom.VfoInfo[VFO].freq_config_TX;
+		pVfo->pTX = &pVfo->freq_config_TX;
 	}
 	else
 	{
-		gEeprom.VfoInfo[VFO].pRX = &gEeprom.VfoInfo[VFO].freq_config_TX;
+		pVfo->pRX = &pVfo->freq_config_TX;
-		gEeprom.VfoInfo[VFO].pTX = &gEeprom.VfoInfo[VFO].freq_config_RX;
+		pVfo->pTX = &pVfo->freq_config_RX;
 	}
 
 	if (!gSetting_350EN)
 	{
-		FREQ_Config_t *pConfig = gEeprom.VfoInfo[VFO].pRX;
+		FREQ_Config_t *pConfig = pVfo->pRX;
 		if (pConfig->Frequency >= 35000000 && pConfig->Frequency < 40000000)
 			pConfig->Frequency = 43300000;
 	}
 
-	if (gEeprom.VfoInfo[VFO].Modulation != MODULATION_FM)
+	if (pVfo->Modulation != MODULATION_FM)
 	{	// freq/chan is in AM mode
-		gEeprom.VfoInfo[VFO].SCRAMBLING_TYPE         = 0;
+		pVfo->SCRAMBLING_TYPE         = 0;
-//		gEeprom.VfoInfo[VFO].DTMF_DECODING_ENABLE    = false;  // no reason to disable DTMF decoding, aircraft use it on SSB
+//		pVfo->DTMF_DECODING_ENABLE    = false;  // no reason to disable DTMF decoding, aircraft use it on SSB
-		gEeprom.VfoInfo[VFO].freq_config_RX.CodeType = CODE_TYPE_OFF;
+		pVfo->freq_config_RX.CodeType = CODE_TYPE_OFF;
-		gEeprom.VfoInfo[VFO].freq_config_TX.CodeType = CODE_TYPE_OFF;
+		pVfo->freq_config_TX.CodeType = CODE_TYPE_OFF;
 	}
 
-	gEeprom.VfoInfo[VFO].Compander = (Attributes & MR_CH_COMPAND) >> 4;
+	pVfo->Compander = att.compander;
 
-	RADIO_ConfigureSquelchAndOutputPower(pRadio);
+	RADIO_ConfigureSquelchAndOutputPower(pVfo);
 }
 
 void RADIO_ConfigureSquelchAndOutputPower(VFO_Info_t *pInfo)

radio.h

@@ -23,13 +23,6 @@
 #include "dcs.h"
 #include "frequencies.h"
 
-enum {
-	MR_CH_BAND_MASK   = 0x0F << 0,
-	MR_CH_COMPAND     =   3u << 4,  // new
-	MR_CH_SCANLIST2   =   1u << 6,
-	MR_CH_SCANLIST1   =   1u << 7
-};
-
 enum {
 	RADIO_CHANNEL_UP   = 0x01u,
 	RADIO_CHANNEL_DOWN = 0xFFu,

settings.c

@@ -263,55 +263,45 @@ void SETTINGS_SaveBatteryCalibration(const uint16_t * batteryCalibration)
 	EEPROM_WriteBuffer(0x1F48, buf);
 }
 
-void SETTINGS_UpdateChannel(uint8_t Channel, const VFO_Info_t *pVFO, bool keep)
+void SETTINGS_UpdateChannel(uint8_t channel, const VFO_Info_t *pVFO, bool keep)
 {
 #ifdef ENABLE_NOAA
-		if (!IS_NOAA_CHANNEL(Channel))
+	if (!IS_NOAA_CHANNEL(channel))
 #endif
 	{
-		uint8_t  State[8];
+		uint8_t  state[8];
-		uint8_t  Attributes = 0xFF;        // default attributes
+		ChannelAttributes_t  att = {
-		uint16_t Offset = 0x0D60 + (Channel & ~7u);
+			.band = 0xf,
+			.compander = 0,
+			.scanlist1 = 0,
+			.scanlist2 = 0,
+			};        // default attributes
 
-		Attributes &= (uint8_t)(~MR_CH_COMPAND);  // default to '0' = compander disabled
+		uint16_t offset = 0x0D60 + (channel & ~7u);
+		EEPROM_ReadBuffer(offset, state, sizeof(state));
 
-		EEPROM_ReadBuffer(Offset, State, sizeof(State));
+		if (keep) {
-
+			att.band = pVFO->Band;
-		if (keep)
+			att.scanlist1 = pVFO->SCANLIST1_PARTICIPATION;
-		{
+			att.scanlist2 = pVFO->SCANLIST2_PARTICIPATION;
-			Attributes = (pVFO->SCANLIST1_PARTICIPATION << 7) | (pVFO->SCANLIST2_PARTICIPATION << 6) | (pVFO->Compander << 4) | (pVFO->Band << 0);
+			att.compander = pVFO->Compander;
-			if (State[Channel & 7u] == Attributes)
+			if (state[channel & 7u] == att.__val)
 				return; // no change in the attributes
 		}
 
-		State[Channel & 7u] = Attributes;
+		state[channel & 7u] = att.__val;
+		EEPROM_WriteBuffer(offset, state);
 
-		EEPROM_WriteBuffer(Offset, State);
+		gMR_ChannelAttributes[channel] = att;
 
-		gMR_ChannelAttributes[Channel] = Attributes;
+		if (IS_MR_CHANNEL(channel)) {	// it's a memory channel
-
+			const uint16_t OffsetMR = channel * 16;
-//		#ifndef ENABLE_KEEP_MEM_NAME
+			if (!keep) {
-			if (IS_MR_CHANNEL(Channel))
+				// clear/reset the channel name
-			{	// it's a memory channel
+				memset(&state, 0x00, sizeof(state));
-		
+				EEPROM_WriteBuffer(0x0F50 + OffsetMR, state);
-				const uint16_t OffsetMR = Channel * 16;
+				EEPROM_WriteBuffer(0x0F58 + OffsetMR, state);
-				if (!keep)
+			}
-				{	// clear/reset the channel name
+		}
-					//memset(&State, 0xFF, sizeof(State));
-					memset(&State, 0x00, sizeof(State));   // follow the QS way
-					EEPROM_WriteBuffer(0x0F50 + OffsetMR, State);
-					EEPROM_WriteBuffer(0x0F58 + OffsetMR, State);
-				}
-//				else
-//				{	// update the channel name
-//					memmove(State, pVFO->Name + 0, 8);
-//					EEPROM_WriteBuffer(0x0F50 + OffsetMR, State);
-//					//memset(State, 0xFF, sizeof(State));
-//					memset(State, 0x00, sizeof(State));  // follow the QS way
-//					memmove(State, pVFO->Name + 8, 2);
-//					EEPROM_WriteBuffer(0x0F58 + OffsetMR, State);
-//				}
-			}
-//		#endif
 	}
 }

settings.h

@@ -127,9 +127,9 @@ enum CHANNEL_DisplayMode_t {
 typedef enum CHANNEL_DisplayMode_t CHANNEL_DisplayMode_t;
 
 typedef struct {
-	uint8_t               ScreenChannel[2];
+	uint8_t               ScreenChannel[2]; // current channels set in the radio (memory or frequency channels)
-	uint8_t               FreqChannel[2];
+	uint8_t               FreqChannel[2]; // last frequency channels used
-	uint8_t               MrChannel[2];
+	uint8_t               MrChannel[2]; // last memory channels used
 	#ifdef ENABLE_NOAA
 		uint8_t           NoaaChannel[2];
 	#endif
@@ -254,6 +254,6 @@ void SETTINGS_SaveVfoIndices(void);
 void SETTINGS_SaveSettings(void);
 void SETTINGS_SaveChannel(uint8_t Channel, uint8_t VFO, const VFO_Info_t *pVFO, uint8_t Mode);
 void SETTINGS_SaveBatteryCalibration(const uint16_t * batteryCalibration);
-void SETTINGS_UpdateChannel(uint8_t Channel, const VFO_Info_t *pVFO, bool keep);
+void SETTINGS_UpdateChannel(uint8_t channel, const VFO_Info_t *pVFO, bool keep);
 
 #endif

ui/helper.c

@@ -180,10 +180,12 @@ void UI_DisplayFrequency(const char *string, uint8_t X, uint8_t Y, bool center)
 	}
 }
 
-void UI_DrawPixel(uint8_t x, uint8_t y, bool black) 
+void UI_DrawPixelBuffer(uint8_t (*buffer)[128], uint8_t x, uint8_t y, bool black) 
 {
-	gFrameBuffer[y/8][x] &= ~(1 << (y%8));
+	if(black)
-	gFrameBuffer[y/8][x] |= black << (y%8);
+		buffer[y/8][x] |= 1 << (y%8);
+	else
+		buffer[y/8][x] &= ~(1 << (y%8));
 }
 
 static void sort(int16_t *a, int16_t *b)
@@ -195,12 +197,12 @@ static void sort(int16_t *a, int16_t *b)
 	}
 }
 
-void UI_DrawLine(int16_t x1, int16_t y1, int16_t x2, int16_t y2, bool black)
+void UI_DrawLineBuffer(uint8_t (*buffer)[128], int16_t x1, int16_t y1, int16_t x2, int16_t y2, bool black)
 {
 	if(x2==x1) {
 		sort(&y1, &y2);
 		for(int16_t i = y1; i <= y2; i++) {
-			UI_DrawPixel(x1, i, black);
+			UI_DrawPixelBuffer(buffer, x1, i, black);
 		}
 	} else {
 		const int multipl = 1000;
@@ -210,17 +212,17 @@ void UI_DrawLine(int16_t x1, int16_t y1, int16_t x2, int16_t y2, bool black)
 		sort(&x1, &x2);
 		for(int i = x1; i<= x2; i++)
 		{
-			UI_DrawPixel(i, i*a/multipl +b, black);
+			UI_DrawPixelBuffer(buffer, i, i*a/multipl +b, black);
 		}
 	}
 }
 
-void UI_DrawRectangle(int16_t x1, int16_t y1, int16_t x2, int16_t y2, bool black)
+void UI_DrawRectangleBuffer(uint8_t (*buffer)[128], int16_t x1, int16_t y1, int16_t x2, int16_t y2, bool black)
 {
-	UI_DrawLine(x1,y1, x1,y2, black);
+	UI_DrawLineBuffer(buffer, x1,y1, x1,y2, black);
-	UI_DrawLine(x1,y1, x2,y1, black);
+	UI_DrawLineBuffer(buffer, x1,y1, x2,y1, black);
-	UI_DrawLine(x2,y1, x2,y2, black);
+	UI_DrawLineBuffer(buffer, x2,y1, x2,y2, black);
-	UI_DrawLine(x1,y2, x2,y2, black);
+	UI_DrawLineBuffer(buffer, x1,y2, x2,y2, black);
 }
 
 void UI_DisplayPopup(const char *string) 
@@ -234,13 +236,13 @@ void UI_DisplayPopup(const char *string)
 	// }
 
 	// for(uint8_t x = 10; x < 118; x++) {
-	// 	UI_DrawPixel(x, 10, true);
+	// 	UI_DrawPixelBuffer(x, 10, true);
-	// 	UI_DrawPixel(x, 46-9, true);
+	// 	UI_DrawPixelBuffer(x, 46-9, true);
 	// }
 
 	// for(uint8_t y = 11; y < 37; y++) {
-	// 	UI_DrawPixel(10, y, true);
+	// 	UI_DrawPixelBuffer(10, y, true);
-	// 	UI_DrawPixel(117, y, true);
+	// 	UI_DrawPixelBuffer(117, y, true);
 	// }
 	// DrawRectangle(9,9, 118,38, true);
 	UI_PrintString(string, 9, 118, 2, 8);

ui/helper.h

@@ -33,7 +33,7 @@ void UI_DisplayFrequency(const char *string, uint8_t X, uint8_t Y, bool center);
 
 void UI_DisplayPopup(const char *string);
 
-void UI_DrawPixel(uint8_t x, uint8_t y, bool black);
+void UI_DrawPixelBuffer(uint8_t (*buffer)[128], uint8_t x, uint8_t y, bool black);
-void UI_DrawLine(int16_t x1, int16_t y1, int16_t x2, int16_t y2, bool black);
+void UI_DrawLineBuffer(uint8_t (*buffer)[128], int16_t x1, int16_t y1, int16_t x2, int16_t y2, bool black);
-void UI_DrawRectangle(int16_t x1, int16_t y1, int16_t x2, int16_t y2, bool black);
+void UI_DrawRectangleBuffer(uint8_t (*buffer)[128], int16_t x1, int16_t y1, int16_t x2, int16_t y2, bool black);
 

ui/main.c

@@ -169,8 +169,18 @@ static void DisplayRSSIBar(const int16_t rssi, const bool now)
 		if (now)
 			memset(p_line, 0, LCD_WIDTH);
 		
+		const int8_t dBmCorrTable[7] = {
+			-15, // band 1
+			-15, // band 2
+			-25, // band 3
+			-20, // band 4
+			-20, // band 5
+			-20, // band 6
+			 -7  // band 7
+		};
+
 		const int16_t      s0_dBm       = -147;                  // S0 .. base level
-		const int16_t      rssi_dBm     = (rssi / 2) - 160;
+		const int16_t      rssi_dBm     = (rssi / 2) - 160 + dBmCorrTable[gRxVfo->Band];
 
 		const uint8_t s_level = MIN(MAX((rssi_dBm - s0_dBm) / 6, 0), 9); // S0 - S9
 		uint8_t overS9dBm = MIN(MAX(rssi_dBm - (s0_dBm + 9*6), 0), 99);
@@ -433,7 +443,7 @@ void UI_DisplayMain(void)
 				UI_PrintString(String, 32, 0, line, 8);
 			}
 
-			break;
+			continue;
 		}
 		else
 		{
@@ -447,15 +457,15 @@ void UI_DisplayMain(void)
 			{	// it's a channel
 
 				// show the scan list assigment symbols
-				const uint8_t attributes = gMR_ChannelAttributes[gEeprom.ScreenChannel[vfo_num]];
+				const ChannelAttributes_t att = gMR_ChannelAttributes[gEeprom.ScreenChannel[vfo_num]];
-				if (attributes & MR_CH_SCANLIST1)
+				if (att.scanlist1)
 					memmove(p_line0 + 113, BITMAP_ScanList1, sizeof(BITMAP_ScanList1));
-				if (attributes & MR_CH_SCANLIST2)
+				if (att.scanlist2)
 					memmove(p_line0 + 120, BITMAP_ScanList2, sizeof(BITMAP_ScanList2));
 
 				// compander symbol
 #ifndef ENABLE_BIG_FREQ
-				if ((attributes & MR_CH_COMPAND) > 0)
+				if (att.compander)
 					memmove(p_line0 + 120 + LCD_WIDTH, BITMAP_compand, sizeof(BITMAP_compand));
 #else
 				// TODO:  // find somewhere else to put the symbol
@@ -533,8 +543,8 @@ void UI_DisplayMain(void)
 				}
 
 				// show the channel symbols
-				const uint8_t attributes = gMR_ChannelAttributes[gEeprom.ScreenChannel[vfo_num]];
+				const ChannelAttributes_t att = gMR_ChannelAttributes[gEeprom.ScreenChannel[vfo_num]];
-				if ((attributes & MR_CH_COMPAND) > 0)
+				if (att.compander)
 #ifdef ENABLE_BIG_FREQ
 					memmove(p_line0 + 120, BITMAP_compand, sizeof(BITMAP_compand));
 #else