Cruise Control update

- added support for Cruise Control in HOVERCAR variant
- updated the shortBeep function, didn't like the beeping sound :)

Inc/config.h

@@ -402,6 +402,7 @@
   // #define DEBUG_SERIAL_USART3           // right sensor board cable, disable if I2C (nunchuk or lcd) is used!
 
   // Extra functionality
+  // #define CRUISE_CONTROL_SUPPORT        // [-] Flag to enable Cruise Control support. Activation/Deactivation is done by sideboard button or Brake pedal press.
   // #define STANDSTILL_HOLD_ENABLE        // [-] Flag to hold the position when standtill is reached. Only available and makes sense for VOLTAGE or TORQUE mode.
   // #define ELECTRIC_BRAKE_ENABLE         // [-] Flag to enable electric brake and replace the motor "freewheel" with a constant braking when the input torque request is 0. Only available and makes sense for TORQUE mode.
   // #define ELECTRIC_BRAKE_MAX    100     // (0, 500) Maximum electric brake to be applied when input torque request is 0 (pedal fully released).

Inc/util.h

@@ -72,6 +72,7 @@ void saveConfig(void);
 int  addDeadBand(int16_t u, int16_t deadBand, int16_t in_min, int16_t in_max, int16_t out_min, int16_t out_max);
 void standstillHold(int16_t *speedCmd);
 void electricBrake(uint16_t speedBlend, uint8_t reverseDir);
+void cruiseControl(uint8_t button);
 
 // Poweroff Functions
 void poweroff(void);

Src/main.c

@@ -225,6 +225,7 @@ int main(void) {
         
         if (cmd1 > 30) {                                            // If Brake pedal (cmd1) is pressed, bring to 0 also the Throttle pedal (cmd2) to avoid "Double pedal" driving
           cmd2 = (int16_t)((cmd2 * speedBlend) >> 15);          
+          cruiseControl((uint8_t)rtP_Left.b_cruiseCtrlEna);         // Cruise control deactivated by Brake pedal if it was active
         }
       #endif
 

Src/util.c

@@ -186,13 +186,6 @@ static uint32_t command_len = sizeof(command);
   #endif
 #endif
 
-#if !defined(VARIANT_HOVERBOARD) && (defined(SIDEBOARD_SERIAL_USART2) || defined(SIDEBOARD_SERIAL_USART3))
-static uint8_t  sensor1_prev;           // holds the previous sensor1 state
-static uint8_t  sensor2_prev;           // holds the previous sensor2 state
-static uint8_t  sensor1_index;          // holds the press index number for sensor1, when used as a button
-static uint8_t  sensor2_index;          // holds the press index number for sensor2, when used as a button
-#endif
-
 #if defined(SUPPORT_BUTTONS) || defined(SUPPORT_BUTTONS_LEFT) || defined(SUPPORT_BUTTONS_RIGHT)
 static uint8_t button1;                 // Blue
 static uint8_t button2;                 // Green
@@ -390,12 +383,12 @@ void shortBeep(uint8_t freq) {
 
 void shortBeepMany(uint8_t cnt, int8_t dir) {
     if (dir >= 0) {   // increasing tone
-      for(uint8_t i = cnt; i > 0; i--) {
+      for(uint8_t i = 2*cnt; i >= 2; i=i-2) {
-        shortBeep(i + 2);
+        shortBeep(i + 3);
       }
     } else {          // decreasing tone
-      for(uint8_t i = 0; i < cnt; i++) {
+      for(uint8_t i = 2; i <= 2*cnt; i=i+2) {
-        shortBeep(i + 2);
+        shortBeep(i + 3);
       }
     }
 }
@@ -648,6 +641,30 @@ void electricBrake(uint16_t speedBlend, uint8_t reverseDir) {
   #endif
 }
 
+ /*
+ * Cruise Control Function
+ * This function activates/deactivates cruise control.
+ * 
+ * Input: button (as a pulse)
+ * Output: none
+ */
+void cruiseControl(uint8_t button) {
+  #ifdef CRUISE_CONTROL_SUPPORT
+    if (button && !rtP_Left.b_cruiseCtrlEna) {                       // Cruise control activated
+      rtP_Left.n_cruiseMotTgt   = rtY_Left.n_mot;
+      rtP_Right.n_cruiseMotTgt  = rtY_Right.n_mot;
+      rtP_Left.b_cruiseCtrlEna  = 1;
+      rtP_Right.b_cruiseCtrlEna = 1;
+      shortBeepMany(2, 1);                                           // 200 ms beep delay. Acts as a debounce also.
+    } else if (button && rtP_Left.b_cruiseCtrlEna) {                 // Cruise control deactivated
+      rtP_Left.b_cruiseCtrlEna  = 0;
+      rtP_Right.b_cruiseCtrlEna = 0;
+      shortBeepMany(2, -1);
+    }
+  #endif
+}
+
+
 
 /* =========================== Poweroff Functions =========================== */
 
@@ -869,17 +886,7 @@ void readCommand(void) {
     }
 
     #if defined(CRUISE_CONTROL_SUPPORT) && (defined(SUPPORT_BUTTONS) || defined(SUPPORT_BUTTONS_LEFT) || defined(SUPPORT_BUTTONS_RIGHT))
-      if (button1 && !rtP_Left.b_cruiseCtrlEna) {                       // Cruise control activated
+      cruiseControl(button1);                                           // Cruise control activation/deactivation
-        rtP_Left.n_cruiseMotTgt   = rtY_Left.n_mot;
-        rtP_Right.n_cruiseMotTgt  = rtY_Right.n_mot;
-        rtP_Left.b_cruiseCtrlEna  = 1;
-        rtP_Right.b_cruiseCtrlEna = 1;
-        shortBeepMany(2, 1);                                            // 200 ms beep delay. Acts as a debounce also.
-      } else if (button1 && rtP_Left.b_cruiseCtrlEna) {                 // Cruise control deactivated
-        rtP_Left.b_cruiseCtrlEna  = 0;
-        rtP_Right.b_cruiseCtrlEna = 0;
-        shortBeepMany(2, -1);
-      }
     #endif    
 }
 
@@ -1199,6 +1206,7 @@ void sideboardLeds(uint8_t *leds) {
  */
 void sideboardSensors(uint8_t sensors) {
   #if !defined(VARIANT_HOVERBOARD) && (defined(SIDEBOARD_SERIAL_USART2) || defined(SIDEBOARD_SERIAL_USART3))
+    static uint8_t  sensor1_prev, sensor2_prev;
     uint8_t sensor1_rising_edge, sensor2_rising_edge;
     sensor1_rising_edge  = (sensors & SENSOR1_SET) && !sensor1_prev;
     sensor2_rising_edge  = (sensors & SENSOR2_SET) && !sensor2_prev;
@@ -1206,6 +1214,7 @@ void sideboardSensors(uint8_t sensors) {
     sensor2_prev         =  sensors & SENSOR2_SET;
 
     // Control MODE and Control Type Handling: use Sensor1 as push button
+    static uint8_t  sensor1_index;          // holds the press index number for sensor1, when used as a button
     if (sensor1_rising_edge) {
       sensor1_index++;
       if (sensor1_index > 4) { sensor1_index = 0; }
@@ -1234,6 +1243,12 @@ void sideboardSensors(uint8_t sensors) {
     }
 
     // Field Weakening: use Sensor2 as push button
+    #ifdef CRUISE_CONTROL_SUPPORT
+      if (sensor2_rising_edge) {
+        cruiseControl(sensor2_rising_edge);
+      }
+    #else
+      static uint8_t  sensor2_index;          // holds the press index number for sensor2, when used as a button
       if (sensor2_rising_edge) {
         sensor2_index++;
         if (sensor2_index > 1) { sensor2_index = 0; }
@@ -1251,6 +1266,7 @@ void sideboardSensors(uint8_t sensors) {
         }
         shortBeepMany(sensor2_index + 1, 1);            
       }
+    #endif  // CRUISE_CONTROL_SUPPORT
   #endif
 }