Add hamband and gridlines setting

nanovna.h

@@ -35,7 +35,7 @@
 #define __SELFTEST__
 #define __CALIBRATE__
 #define __FAST_SWEEP__          // Pre-fill SI4432 RSSI buffer  to get fastest sweep in zero span mode
-//#define __HAM_BAND__
+#define __HAM_BAND__
 //#define __ULTRA__             // Add harmonics mode on low input.
 //#define __ULTRA_SA__            // Adds ADF4351 control for extra high 1st IF stage
 #define __SPUR__                // Does spur reduction by shifting IF
@@ -452,6 +452,8 @@ typedef struct config {
   float    correction_value[CORRECTION_POINTS];
   uint32_t deviceid;
   uint16_t ham_color;
+  uint16_t gridlines;
+  uint16_t hambands;
 //  uint8_t _reserved[22];
   uint32_t checksum;
 } config_t;
@@ -945,11 +947,13 @@ extern uint16_t actual_rbw_x10;
 
 int get_waterfall(void);
 void toggle_tracking(void);
+void toggle_hambands(void);
 void reset_calibration(void);
 void set_reflevel(float);
 void set_offset(float);
 void set_unit(int);
 void set_switches(int);
+void set_gridlines(int);
 void set_trigger_level(float);
 void set_trigger(int);
 void update_rbw(void);

plot.c

@@ -127,18 +127,18 @@ void update_grid(void)
     fspan = setting.actual_sweep_time_us; // Time in uS
     fstart = 0;
   }
-
-#define GRIDLINE_MINIMUM 7
+  if (config.gridlines < 3)
+    config.gridlines = 6;
 
   while (gdigit > 100) {
     grid = 5 * gdigit;
-    if (fspan / grid >= GRIDLINE_MINIMUM)
+    if (fspan / grid >= config.gridlines)
       break;
     grid = 2 * gdigit;
-    if (fspan / grid >= GRIDLINE_MINIMUM)
+    if (fspan / grid >= config.gridlines)
       break;
     grid = gdigit;
-    if (fspan / grid >= GRIDLINE_MINIMUM)
+    if (fspan / grid >= config.gridlines)
       break;
     gdigit /= 10;
   }
@@ -432,6 +432,8 @@ const ham_bands_t ham_bands[] =
 
 int ham_band(int x)      // Search which index in the frequency tabled matches with frequency  f using actual_rbw
 {
+  if (!config.hambands)
+    return false;
   uint32_t f = frequencies[x];
   int L = 0;
   int R =  (sizeof ham_bands)/sizeof(uint32_t) - 1;

sa_core.c

@@ -242,6 +242,16 @@ void set_noise(int d)
   dirty = true;
 }
 
+void set_gridlines(int d)
+{
+  if (d < 3 || d > 20)
+    return;
+  config.gridlines = d;
+  config_save();
+  dirty = true;
+  update_grid();
+}
+
 void set_measurement(int m)
 {
   setting.measurement = m;
@@ -312,6 +322,12 @@ void toggle_mute(void)
   dirty = true;
 }
 
+void toggle_hambands(void)
+{
+  config.hambands = !config.hambands;
+  dirty = true;
+}
+
 void toggle_below_IF(void)
 {
   if (S_IS_AUTO(setting.below_IF ))

ui_sa.c

@@ -406,7 +406,7 @@ static const keypads_t keypads_time[] = {
 enum {
   KM_START, KM_STOP, KM_CENTER, KM_SPAN, KM_CW, KM_REFLEVEL, KM_SCALE, KM_ATTENUATION,
   KM_ACTUALPOWER, KM_IF, KM_SAMPLETIME, KM_DRIVE, KM_LOWOUTLEVEL, KM_DECAY, KM_NOISE,
-  KM_10MHZ, KM_REPEAT, KM_OFFSET, KM_TRIGGER, KM_LEVELSWEEP, KM_SWEEP_TIME, KM_OFFSET_DELAY, KM_FAST_SPEEDUP,
+  KM_10MHZ, KM_REPEAT, KM_OFFSET, KM_TRIGGER, KM_LEVELSWEEP, KM_SWEEP_TIME, KM_OFFSET_DELAY, KM_FAST_SPEEDUP, KM_GRIDLINES,
   KM_NONE // always at enum end
 };
 
@@ -428,7 +428,7 @@ static const struct {
   {keypads_positive    , "DRIVE"}, // drive
   {keypads_plusmin     , "LEVEL"},    // KM_LOWOUTLEVEL
   {keypads_positive    , "SCANS"},    // KM_DECAY
-  {keypads_positive    , "LEVEL"},    // KM_NOISE
+  {keypads_positive    , "NOISE\nLEVEL"},    // KM_NOISE
   {keypads_freq        , "FREQ"},    // KM_10MHz
   {keypads_positive    , "SAMPLE\nREPEAT"},    // KM_REPEA
   {keypads_plusmin     , "OFFSET"},    // KM_OFFSET
@@ -437,6 +437,7 @@ static const struct {
   {keypads_time        , "SWEEP\nSECONDS"},    // KM_SWEEP_TIME
   {keypads_positive    , "OFFSET\nDELAY"}, // KM_OFFSET_DELAY
   {keypads_positive    , "FAST\nSPEEDUP"}, // KM_FAST_SPEEDUP
+  {keypads_positive    , "MINIMUM\nGRIDLINES"}, // KM_GRIDLINES
 };
 
 // ===[MENU CALLBACKS]=========================================================
@@ -1174,6 +1175,19 @@ static UI_FUNCTION_ADV_CALLBACK(menu_settings_bpf_acb){
   draw_menu();
 }
 
+#ifdef __HAM_BAND__
+static UI_FUNCTION_ADV_CALLBACK(menu_settings_ham_bands){
+  (void)item;
+  (void)data;
+  if(b){
+    b->icon = config.hambands ? BUTTON_ICON_CHECK : BUTTON_ICON_NOCHECK;
+    return;
+  }
+  toggle_hambands();
+  draw_menu();
+}
+#endif
+
 static UI_FUNCTION_ADV_CALLBACK(menu_settings_below_if_acb){
   (void)item;
   (void)data;
@@ -1574,6 +1588,21 @@ static const menuitem_t menu_sweep_speed[] =
  { MT_NONE,     0, NULL, NULL } // sentinel
 };
 
+static const menuitem_t menu_settings3[] =
+{
+  { MT_KEYPAD,   KM_10MHZ,      "CORRECT\nFREQUENCY", "Enter actual l0MHz frequency"},
+  { MT_KEYPAD,   KM_GRIDLINES,  "MINIMUM\nGRIDLINES", "Enter minimum horizontal grid divisions"},
+#ifdef __HAM_BAND__
+  { MT_ADV_CALLBACK, 0,         "HAM\nBANDS",         menu_settings_ham_bands},
+#endif
+#ifdef __ULTRA__
+  { MT_SUBMENU,0,               "HARMONIC",         menu_harmonic},
+#endif
+  { MT_CANCEL,   0, S_LARROW" BACK", NULL },
+  { MT_NONE,     0, NULL, NULL } // sentinel
+};
+
+
 static const menuitem_t menu_settings2[] =
 {
   { MT_ADV_CALLBACK, 0,             "AGC",           menu_settings_agc_acb},
@@ -1582,10 +1611,10 @@ static const menuitem_t menu_settings2[] =
   { MT_ADV_CALLBACK | MT_LOW, 0,    "BELOW IF",      menu_settings_below_if_acb},
   { MT_KEYPAD,   KM_DECAY,      "HOLD\nSWEEPS",   "1..1000 sweeps"},
   { MT_KEYPAD,   KM_NOISE,      "NOISE\nLEVEL",   "2..20 dB"},
-  { MT_KEYPAD,   KM_10MHZ,      "CORRECT\nFREQUENCY", "Enter actual l0MHz frequency"},
 #ifdef __ULTRA__
   { MT_SUBMENU,0,               "HARMONIC",         menu_harmonic},
 #endif
+  { MT_SUBMENU,  0,             S_RARROW" MORE",     menu_settings3},
   { MT_CANCEL,   0, S_LARROW" BACK", NULL },
   { MT_NONE,     0, NULL, NULL } // sentinel
 };
@@ -1991,6 +2020,10 @@ set_numeric_value(void)
     completed = true;
 
     break;
+  case KM_GRIDLINES:
+    set_gridlines(uistat.value);
+    break;
+
   }
 }