Improved extended bandwidth function

TEF6686_ESP32.ino

@@ -3455,6 +3455,7 @@ void ShowOffset() {
         // Right arrow dimmed (◀)
         tft.fillTriangle(rightArrowBaseX, arrowBaseYTop, centerX + arrowGap, centerY, rightArrowBaseX, arrowBaseYBottom, SignificantColor);
         tuned = false;
+        radio.extendBW(false);
       } else if (USN < 250 && WAM < 250 && OStatus > -250 && OStatus < 250 && !SQ) {
         // Both arrows dimmed
         tft.fillTriangle(leftArrowBaseX, arrowBaseYTop, centerX - arrowGap, centerY, leftArrowBaseX, arrowBaseYBottom, GreyoutColor);
@@ -3462,6 +3463,7 @@ void ShowOffset() {
         // Center dot active
         tft.fillCircle(centerX, centerY, 3, InsignificantColor);
         tuned = true;
+        radio.extendBW(true);
       } else if (OStatus > 250) {
         // Right arrow active (◀)
         tft.fillTriangle(rightArrowBaseX, arrowBaseYTop, centerX + arrowGap, centerY, rightArrowBaseX, arrowBaseYBottom, GreyoutColor);
@@ -3470,12 +3472,14 @@ void ShowOffset() {
         // Left arrow dimmed (▶)
         tft.fillTriangle(leftArrowBaseX, arrowBaseYTop, centerX - arrowGap, centerY, leftArrowBaseX, arrowBaseYBottom, SignificantColor);
         tuned = false;
+        radio.extendBW(false);
       } else {
         // Everything dimmed
         tft.fillTriangle(leftArrowBaseX, arrowBaseYTop, centerX - arrowGap, centerY, leftArrowBaseX, arrowBaseYBottom, GreyoutColor);
         tft.fillTriangle(rightArrowBaseX, arrowBaseYTop, centerX + arrowGap, centerY, rightArrowBaseX, arrowBaseYBottom, GreyoutColor);
         tft.fillCircle(centerX, centerY, 3, GreyoutColor);
         tuned = false;
+        radio.extendBW(false);
       }
     } else {
       if (OStatus < -2) {

src/TEF6686.cpp

@@ -175,6 +175,10 @@ void TEF6686::power(bool mode) {
   if (mode == 0) devTEF_Set_Cmd(TEF_FM, Cmd_Tune_To, 7, 1, 10000);
 }
 
+void TEF6686::extendBW(bool yesno) {
+  devTEF_Radio_Extend_BW(yesno);
+}
+
 void TEF6686::SetFreq(uint16_t frequency) {
   devTEF_Radio_Tune_To(frequency);
   currentfreq = ((frequency + 5) / 10) * 10;
@@ -597,8 +601,8 @@ void TEF6686::readRDS(byte showrdserrors) {
 
     if (!rds.rdsBerror || showrdserrors == 3) rdsblock = rds.rdsB >> 11; else return;
     rds.blockcounter[rdsblock]++;
-	processed_rdsblocks++;
-	
+    processed_rdsblocks++;
+
     switch (rdsblock) {
       case RDS_GROUP_0A:
       case RDS_GROUP_0B:

src/TEF6686.h

@@ -727,6 +727,7 @@ class TEF6686 {
     void setUnMute();
     void setVolume(int8_t volume);
     void tone(uint16_t time, int16_t amplitude, uint16_t frequency);
+    void extendBW(bool yesno);
     uint16_t getBlockA(void);
     String trimTrailingSpaces(String str);
     uint8_t af_counter;

src/Tuner_Drv_Lithio.cpp

@@ -132,6 +132,10 @@ void devTEF_Radio_Set_ChannelEqualizer(bool eq) {
   devTEF_Set_Cmd(TEF_FM, Cmd_Set_ChannelEqualizer, 5, eq);
 }
 
+void devTEF_Radio_Extend_BW(bool yesno) {
+  devTEF_Set_Cmd(TEF_FM, Cmd_Set_Bandwidth_Options, 5, (yesno ? 400 : 950));
+}
+
 void devTEF_Radio_Set_Stereo_Min(bool mode) {
   if (mode) devTEF_Set_Cmd(TEF_FM, Cmd_Set_Stereo_Min, 7, 2); else devTEF_Set_Cmd(TEF_FM, Cmd_Set_Stereo_Min, 7, 0);
 }

src/Tuner_Drv_Lithio.h

@@ -36,6 +36,7 @@ typedef enum {
   Cmd_Set_StHiBlend_Max       = 75,
   Cmd_Set_RDS                 = 81,
   Cmd_Set_Specials            = 85,
+  Cmd_Set_Bandwidth_Options   = 86,
   Cmd_Set_StBandBlend_Time    = 90,
   Cmd_Set_StBandBlend_Gain    = 91,
   Cmd_Set_StBandBlend_Bias    = 92,
@@ -103,6 +104,7 @@ void devTEF_Radio_Set_NoisBlanker(uint8_t mode, uint16_t start);
 void devTEF_Radio_Set_Wavegen(bool mode, int16_t amplitude, uint16_t freq);
 void devTEF_Radio_Set_I2S_Input(bool mode);
 void devTEF_Radio_Set_GPIO(uint8_t mode);
+void devTEF_Radio_Extend_BW(bool yesno);
 
 bool devTEF_Radio_Get_Identification (uint16_t *device, uint16_t *hw_version, uint16_t *sw_version);
 bool devTEF_Radio_Get_Quality_Status (uint16_t *status, int16_t *level, uint16_t *usn, uint16_t *wam, int16_t *offset, uint16_t *bandwidth, uint16_t *mod, int8_t *snr);

src/Tuner_Interface.cpp

@@ -15,9 +15,7 @@ const unsigned char tuner_init_tab[] PROGMEM = {
   9, 0x20, 0x49, 0x01, 0x00, 0x00, 0x00, 0xA0, 0x00, 0x8C,
   9, 0x20, 0x4A, 0x01, 0x00, 0x00, 0x00, 0xA0, 0x00, 0x8C,
   7, 0x20, 0x4B, 0x01, 0x00, 0x00, 0x0F, 0xA0,
-  5, 0x20, 0x56, 0x01, 0x01, 0xf4,
   7, 0x30, 0x15, 0x01, 0x00, 0x80, 0x00, 0x01,
-  13, 0x30, 0x16, 0x01, 0x00, 0x20, 0x00, 0x01, 0x00, 0x10, 0x00, 0x00, 0x12, 0xc0,
   13, 0x30, 0x16, 0x01, 0x00, 0x21, 0x00, 0x02, 0x00, 0x10, 0x01, 0x00, 0x12, 0xc0,
   7, 0x30, 0x0d, 0x01, 0x00, 0x80, 0x00, 0xe0
 };