Updated example configurations

Marlin/Conditionals.h

@@ -397,8 +397,8 @@
   /**
    * Host keep alive
    */
-  #ifndef HOST_KEEPALIVE_INTERVAL
-    #define HOST_KEEPALIVE_INTERVAL 2
+  #ifndef DEFAULT_KEEPALIVE_INTERVAL
+    #define DEFAULT_KEEPALIVE_INTERVAL 2
   #endif
 
   /**

Marlin/Configuration.h

@@ -737,7 +737,7 @@ const bool Z_MIN_PROBE_ENDSTOP_INVERTING = false; // set to true to invert the l
 // every couple of seconds when it can't accept commands.
 //
 #define HOST_KEEPALIVE_FEATURE        // Disable this if your host doesn't like keepalive messages
-#define HOST_KEEPALIVE_INTERVAL 2 // Number of seconds between "busy" messages. Set with M113.
+#define DEFAULT_KEEPALIVE_INTERVAL 2  // Number of seconds between "busy" messages. Set with M113.
 
 //
 // M100 Free Memory Watcher

Marlin/Marlin_main.cpp

@@ -488,7 +488,7 @@ static bool send_ok[BUFSIZE];
 
   static MarlinBusyState busy_state = NOT_BUSY;
   static millis_t next_busy_signal_ms = 0;
-  uint8_t host_keepalive_interval = HOST_KEEPALIVE_INTERVAL;
+  uint8_t host_keepalive_interval = DEFAULT_KEEPALIVE_INTERVAL;
   #define KEEPALIVE_STATE(n) do{ busy_state = n; }while(0)
 #else
   #define host_keepalive() ;

Marlin/example_configurations/Felix/Configuration.h

@@ -716,13 +716,11 @@ const bool Z_MIN_PROBE_ENDSTOP_INVERTING = false; // set to true to invert the l
 //
 // Host Keepalive
 //
-// By default Marlin will send a busy status message to the host
+// When enabled Marlin will send a busy status message to the host
 // every couple of seconds when it can't accept commands.
 //
-//#define DISABLE_HOST_KEEPALIVE // Enable this option if your host doesn't like keepalive messages.
-#if DISABLED(DISABLE_HOST_KEEPALIVE)
-  #define DEFAULT_KEEPALIVE_INTERVAL 2 // Number of seconds between "busy" messages. Set with M113.
-#endif
+#define HOST_KEEPALIVE_FEATURE       // Disable this if your host doesn't like keepalive messages
+#define DEFAULT_KEEPALIVE_INTERVAL 2 // Number of seconds between "busy" messages. Set with M113.
 
 //
 // M100 Free Memory Watcher

Marlin/example_configurations/Hephestos/Configuration.h

@@ -725,13 +725,11 @@ const bool Z_MIN_PROBE_ENDSTOP_INVERTING = true; // set to true to invert the lo
 //
 // Host Keepalive
 //
-// By default Marlin will send a busy status message to the host
+// When enabled Marlin will send a busy status message to the host
 // every couple of seconds when it can't accept commands.
 //
-//#define DISABLE_HOST_KEEPALIVE // Enable this option if your host doesn't like keepalive messages.
-#if DISABLED(DISABLE_HOST_KEEPALIVE)
-  #define DEFAULT_KEEPALIVE_INTERVAL 2 // Number of seconds between "busy" messages. Set with M113.
-#endif
+#define HOST_KEEPALIVE_FEATURE       // Disable this if your host doesn't like keepalive messages
+#define DEFAULT_KEEPALIVE_INTERVAL 2 // Number of seconds between "busy" messages. Set with M113.
 
 //
 // M100 Free Memory Watcher

Marlin/example_configurations/Hephestos_2/Configuration.h

@@ -727,13 +727,11 @@ const bool Z_MIN_PROBE_ENDSTOP_INVERTING = false; // set to true to invert the l
 //
 // Host Keepalive
 //
-// By default Marlin will send a busy status message to the host
+// When enabled Marlin will send a busy status message to the host
 // every couple of seconds when it can't accept commands.
 //
-//#define DISABLE_HOST_KEEPALIVE // Enable this option if your host doesn't like keepalive messages.
-#if DISABLED(DISABLE_HOST_KEEPALIVE)
-  #define DEFAULT_KEEPALIVE_INTERVAL 2 // Number of seconds between "busy" messages. Set with M113.
-#endif
+#define HOST_KEEPALIVE_FEATURE       // Disable this if your host doesn't like keepalive messages
+#define DEFAULT_KEEPALIVE_INTERVAL 2 // Number of seconds between "busy" messages. Set with M113.
 
 //
 // M100 Free Memory Watcher

Marlin/example_configurations/K8200/Configuration.h

@@ -750,13 +750,11 @@ const bool Z_MIN_PROBE_ENDSTOP_INVERTING = false; // set to true to invert the l
 //
 // Host Keepalive
 //
-// By default Marlin will send a busy status message to the host
+// When enabled Marlin will send a busy status message to the host
 // every couple of seconds when it can't accept commands.
 //
-//#define DISABLE_HOST_KEEPALIVE // Enable this option if your host doesn't like keepalive messages.
-#if DISABLED(DISABLE_HOST_KEEPALIVE)
-  #define DEFAULT_KEEPALIVE_INTERVAL 2 // Number of seconds between "busy" messages. Set with M113.
-#endif
+#define HOST_KEEPALIVE_FEATURE       // Disable this if your host doesn't like keepalive messages
+#define DEFAULT_KEEPALIVE_INTERVAL 2 // Number of seconds between "busy" messages. Set with M113.
 
 //
 // M100 Free Memory Watcher

Marlin/example_configurations/RepRapWorld/Megatronics/Configuration.h

@@ -733,13 +733,11 @@ const bool Z_MIN_PROBE_ENDSTOP_INVERTING = false; // set to true to invert the l
 //
 // Host Keepalive
 //
-// By default Marlin will send a busy status message to the host
+// When enabled Marlin will send a busy status message to the host
 // every couple of seconds when it can't accept commands.
 //
-//#define DISABLE_HOST_KEEPALIVE // Enable this option if your host doesn't like keepalive messages.
-#if DISABLED(DISABLE_HOST_KEEPALIVE)
-  #define DEFAULT_KEEPALIVE_INTERVAL 2 // Number of seconds between "busy" messages. Set with M113.
-#endif
+#define HOST_KEEPALIVE_FEATURE       // Disable this if your host doesn't like keepalive messages
+#define DEFAULT_KEEPALIVE_INTERVAL 2 // Number of seconds between "busy" messages. Set with M113.
 
 //
 // M100 Free Memory Watcher

Marlin/example_configurations/RigidBot/Configuration.h

@@ -728,13 +728,11 @@ const bool Z_MIN_PROBE_ENDSTOP_INVERTING = false; // set to true to invert the l
 //
 // Host Keepalive
 //
-// By default Marlin will send a busy status message to the host
+// When enabled Marlin will send a busy status message to the host
 // every couple of seconds when it can't accept commands.
 //
-//#define DISABLE_HOST_KEEPALIVE // Enable this option if your host doesn't like keepalive messages.
-#if DISABLED(DISABLE_HOST_KEEPALIVE)
-  #define DEFAULT_KEEPALIVE_INTERVAL 2 // Number of seconds between "busy" messages. Set with M113.
-#endif
+#define HOST_KEEPALIVE_FEATURE       // Disable this if your host doesn't like keepalive messages
+#define DEFAULT_KEEPALIVE_INTERVAL 2 // Number of seconds between "busy" messages. Set with M113.
 
 //
 // M100 Free Memory Watcher

Marlin/example_configurations/SCARA/Configuration.h

@@ -741,13 +741,11 @@ const bool Z_MIN_PROBE_ENDSTOP_INVERTING = false; // set to true to invert the l
 //
 // Host Keepalive
 //
-// By default Marlin will send a busy status message to the host
+// When enabled Marlin will send a busy status message to the host
 // every couple of seconds when it can't accept commands.
 //
-//#define DISABLE_HOST_KEEPALIVE // Enable this option if your host doesn't like keepalive messages.
-#if DISABLED(DISABLE_HOST_KEEPALIVE)
-  #define DEFAULT_KEEPALIVE_INTERVAL 2 // Number of seconds between "busy" messages. Set with M113.
-#endif
+#define HOST_KEEPALIVE_FEATURE       // Disable this if your host doesn't like keepalive messages
+#define DEFAULT_KEEPALIVE_INTERVAL 2 // Number of seconds between "busy" messages. Set with M113.
 
 //
 // M100 Free Memory Watcher

Marlin/example_configurations/TAZ4/Configuration.h

@@ -754,13 +754,11 @@ const bool Z_MIN_PROBE_ENDSTOP_INVERTING = false; // set to true to invert the l
 //
 // Host Keepalive
 //
-// By default Marlin will send a busy status message to the host
+// When enabled Marlin will send a busy status message to the host
 // every couple of seconds when it can't accept commands.
 //
-//#define DISABLE_HOST_KEEPALIVE // Enable this option if your host doesn't like keepalive messages.
-#if DISABLED(DISABLE_HOST_KEEPALIVE)
-  #define DEFAULT_KEEPALIVE_INTERVAL 2 // Number of seconds between "busy" messages. Set with M113.
-#endif
+#define HOST_KEEPALIVE_FEATURE       // Disable this if your host doesn't like keepalive messages
+#define DEFAULT_KEEPALIVE_INTERVAL 2 // Number of seconds between "busy" messages. Set with M113.
 
 //
 // M100 Free Memory Watcher

Marlin/example_configurations/WITBOX/Configuration.h

@@ -725,13 +725,11 @@ const bool Z_MIN_PROBE_ENDSTOP_INVERTING = true; // set to true to invert the lo
 //
 // Host Keepalive
 //
-// By default Marlin will send a busy status message to the host
+// When enabled Marlin will send a busy status message to the host
 // every couple of seconds when it can't accept commands.
 //
-//#define DISABLE_HOST_KEEPALIVE // Enable this option if your host doesn't like keepalive messages.
-#if DISABLED(DISABLE_HOST_KEEPALIVE)
-  #define DEFAULT_KEEPALIVE_INTERVAL 2 // Number of seconds between "busy" messages. Set with M113.
-#endif
+#define HOST_KEEPALIVE_FEATURE       // Disable this if your host doesn't like keepalive messages
+#define DEFAULT_KEEPALIVE_INTERVAL 2 // Number of seconds between "busy" messages. Set with M113.
 
 //
 // M100 Free Memory Watcher

Marlin/example_configurations/adafruit/ST7565/Configuration.h

@@ -733,13 +733,11 @@ const bool Z_MIN_PROBE_ENDSTOP_INVERTING = false; // set to true to invert the l
 //
 // Host Keepalive
 //
-// By default Marlin will send a busy status message to the host
+// When enabled Marlin will send a busy status message to the host
 // every couple of seconds when it can't accept commands.
 //
-//#define DISABLE_HOST_KEEPALIVE // Enable this option if your host doesn't like keepalive messages.
-#if DISABLED(DISABLE_HOST_KEEPALIVE)
-  #define DEFAULT_KEEPALIVE_INTERVAL 2 // Number of seconds between "busy" messages. Set with M113.
-#endif
+#define HOST_KEEPALIVE_FEATURE       // Disable this if your host doesn't like keepalive messages
+#define DEFAULT_KEEPALIVE_INTERVAL 2 // Number of seconds between "busy" messages. Set with M113.
 
 //
 // M100 Free Memory Watcher

Marlin/example_configurations/delta/biv2.5/Configuration.h

@@ -862,13 +862,11 @@ const bool Z_MIN_PROBE_ENDSTOP_INVERTING = true; // set to true to invert the lo
 //
 // Host Keepalive
 //
-// By default Marlin will send a busy status message to the host
+// When enabled Marlin will send a busy status message to the host
 // every couple of seconds when it can't accept commands.
 //
-//#define DISABLE_HOST_KEEPALIVE // Enable this option if your host doesn't like keepalive messages.
-#if DISABLED(DISABLE_HOST_KEEPALIVE)
-  #define DEFAULT_KEEPALIVE_INTERVAL 2 // Number of seconds between "busy" messages. Set with M113.
-#endif
+#define HOST_KEEPALIVE_FEATURE       // Disable this if your host doesn't like keepalive messages
+#define DEFAULT_KEEPALIVE_INTERVAL 2 // Number of seconds between "busy" messages. Set with M113.
 
 //
 // M100 Free Memory Watcher

Marlin/example_configurations/delta/generic/Configuration.h

@@ -862,13 +862,11 @@ const bool Z_MIN_PROBE_ENDSTOP_INVERTING = true; // set to true to invert the lo
 //
 // Host Keepalive
 //
-// By default Marlin will send a busy status message to the host
+// When enabled Marlin will send a busy status message to the host
 // every couple of seconds when it can't accept commands.
 //
-//#define DISABLE_HOST_KEEPALIVE // Enable this option if your host doesn't like keepalive messages.
-#if DISABLED(DISABLE_HOST_KEEPALIVE)
-  #define DEFAULT_KEEPALIVE_INTERVAL 2 // Number of seconds between "busy" messages. Set with M113.
-#endif
+#define HOST_KEEPALIVE_FEATURE       // Disable this if your host doesn't like keepalive messages
+#define DEFAULT_KEEPALIVE_INTERVAL 2 // Number of seconds between "busy" messages. Set with M113.
 
 //
 // M100 Free Memory Watcher

Marlin/example_configurations/delta/kossel_mini/Configuration.h

@@ -866,13 +866,11 @@ const bool Z_MIN_PROBE_ENDSTOP_INVERTING = false; // set to true to invert the l
 //
 // Host Keepalive
 //
-// By default Marlin will send a busy status message to the host
+// When enabled Marlin will send a busy status message to the host
 // every couple of seconds when it can't accept commands.
 //
-//#define DISABLE_HOST_KEEPALIVE // Enable this option if your host doesn't like keepalive messages.
-#if DISABLED(DISABLE_HOST_KEEPALIVE)
-  #define DEFAULT_KEEPALIVE_INTERVAL 2 // Number of seconds between "busy" messages. Set with M113.
-#endif
+#define HOST_KEEPALIVE_FEATURE       // Disable this if your host doesn't like keepalive messages
+#define DEFAULT_KEEPALIVE_INTERVAL 2 // Number of seconds between "busy" messages. Set with M113.
 
 //
 // M100 Free Memory Watcher

Marlin/example_configurations/delta/kossel_pro/Configuration.h

@@ -859,13 +859,11 @@ const bool Z_MIN_PROBE_ENDSTOP_INVERTING = false; // set to true to invert the l
 //
 // Host Keepalive
 //
-// By default Marlin will send a busy status message to the host
+// When enabled Marlin will send a busy status message to the host
 // every couple of seconds when it can't accept commands.
 //
-//#define DISABLE_HOST_KEEPALIVE // Enable this option if your host doesn't like keepalive messages.
-#if DISABLED(DISABLE_HOST_KEEPALIVE)
-  #define DEFAULT_KEEPALIVE_INTERVAL 2 // Number of seconds between "busy" messages. Set with M113.
-#endif
+#define HOST_KEEPALIVE_FEATURE       // Disable this if your host doesn't like keepalive messages
+#define DEFAULT_KEEPALIVE_INTERVAL 2 // Number of seconds between "busy" messages. Set with M113.
 
 //
 // M100 Free Memory Watcher

Marlin/example_configurations/delta/kossel_xl/Configuration.h

@@ -867,13 +867,11 @@ const bool Z_MIN_PROBE_ENDSTOP_INVERTING = false; // set to true to invert the l
 //
 // Host Keepalive
 //
-// By default Marlin will send a busy status message to the host
+// When enabled Marlin will send a busy status message to the host
 // every couple of seconds when it can't accept commands.
 //
-//#define DISABLE_HOST_KEEPALIVE // Enable this option if your host doesn't like keepalive messages.
-#if DISABLED(DISABLE_HOST_KEEPALIVE)
-  #define DEFAULT_KEEPALIVE_INTERVAL 2 // Number of seconds between "busy" messages. Set with M113.
-#endif
+#define HOST_KEEPALIVE_FEATURE       // Disable this if your host doesn't like keepalive messages
+#define DEFAULT_KEEPALIVE_INTERVAL 2 // Number of seconds between "busy" messages. Set with M113.
 
 //
 // M100 Free Memory Watcher

Marlin/example_configurations/makibox/Configuration.h

@@ -736,13 +736,11 @@ const bool Z_MIN_PROBE_ENDSTOP_INVERTING = false; // set to true to invert the l
 //
 // Host Keepalive
 //
-// By default Marlin will send a busy status message to the host
+// When enabled Marlin will send a busy status message to the host
 // every couple of seconds when it can't accept commands.
 //
-//#define DISABLE_HOST_KEEPALIVE // Enable this option if your host doesn't like keepalive messages.
-#if DISABLED(DISABLE_HOST_KEEPALIVE)
-  #define DEFAULT_KEEPALIVE_INTERVAL 2 // Number of seconds between "busy" messages. Set with M113.
-#endif
+#define HOST_KEEPALIVE_FEATURE       // Disable this if your host doesn't like keepalive messages
+#define DEFAULT_KEEPALIVE_INTERVAL 2 // Number of seconds between "busy" messages. Set with M113.
 
 //
 // M100 Free Memory Watcher

Marlin/example_configurations/tvrrug/Round2/Configuration.h

@@ -727,13 +727,11 @@ const bool Z_MIN_PROBE_ENDSTOP_INVERTING = true; // set to true to invert the lo
 //
 // Host Keepalive
 //
-// By default Marlin will send a busy status message to the host
+// When enabled Marlin will send a busy status message to the host
 // every couple of seconds when it can't accept commands.
 //
-//#define DISABLE_HOST_KEEPALIVE // Enable this option if your host doesn't like keepalive messages.
-#if DISABLED(DISABLE_HOST_KEEPALIVE)
-  #define DEFAULT_KEEPALIVE_INTERVAL 2 // Number of seconds between "busy" messages. Set with M113.
-#endif
+#define HOST_KEEPALIVE_FEATURE       // Disable this if your host doesn't like keepalive messages
+#define DEFAULT_KEEPALIVE_INTERVAL 2 // Number of seconds between "busy" messages. Set with M113.
 
 //
 // M100 Free Memory Watcher