Pins cleanup

6 years ago · 179095c387
parent 42be684e69
commit 179095c387
39 changed files with 123 additions and 124 deletions
--- a/Marlin/src/pins/linux/pins_RAMPS_LINUX.h
+++ b/Marlin/src/pins/linux/pins_RAMPS_LINUX.h
@ -133,9 +133,9 @@

 // SPI for Max6675 or Max31855 Thermocouple
 #if DISABLED(SDSUPPORT)
-  #define MAX6675_SS_PIN     66   // Do not use pin 53 if there is even the remote possibility of using Display/SD card
+  #define MAX6675_SS_PIN     66   // Don't use 53 if there is even the remote possibility of using Display/SD card
 #else
-  #define MAX6675_SS_PIN     66   // Do not use pin 49 as this is tied to the switch inside the SD card socket to detect if there is an SD card present
+  #define MAX6675_SS_PIN     66   // Don't use 49 as this is tied to the switch inside the SD card socket to detect if there is an SD card present
 #endif

 //
@ -222,9 +222,9 @@

 #if ENABLED(CASE_LIGHT_ENABLE) && !defined(CASE_LIGHT_PIN) && !defined(SPINDLE_LASER_ENA_PIN)
  #if NUM_SERVOS <= 1 // try to use servo connector first
-    #define CASE_LIGHT_PIN    6   // MUST BE HARDWARE PWM
+    #define CASE_LIGHT_PIN    6   // Hardware PWM
  #elif !(BOTH(ULTRA_LCD, NEWPANEL) && ANY(PANEL_ONE, VIKI2, miniVIKI, MINIPANEL, REPRAPWORLD_KEYPAD))  // try to use AUX 2
-    #define CASE_LIGHT_PIN   44   // MUST BE HARDWARE PWM
+    #define CASE_LIGHT_PIN   44   // Hardware PWM
  #endif
 #endif

@ -233,12 +233,12 @@
 //
 #if HAS_CUTTER && !PIN_EXISTS(SPINDLE_LASER_ENA)
  #if !defined(NUM_SERVOS) || NUM_SERVOS == 0 // try to use servo connector first
-    #define SPINDLE_LASER_ENA_PIN     4   // Pin should have a pullup/pulldown!
-    #define SPINDLE_LASER_PWM_PIN     6   // MUST BE HARDWARE PWM
+    #define SPINDLE_LASER_ENA_PIN     4   // Pullup or pulldown!
+    #define SPINDLE_LASER_PWM_PIN     6   // Hardware PWM
    #define SPINDLE_DIR_PIN           5
  #elif !(BOTH(ULTRA_LCD, NEWPANEL) && ANY(PANEL_ONE, VIKI2, miniVIKI, MINIPANEL, REPRAPWORLD_KEYPAD))  // try to use AUX 2
-    #define SPINDLE_LASER_ENA_PIN    40   // Pin should have a pullup/pulldown!
-    #define SPINDLE_LASER_PWM_PIN    44   // MUST BE HARDWARE PWM
+    #define SPINDLE_LASER_ENA_PIN    40   // Pullup or pulldown!
+    #define SPINDLE_LASER_PWM_PIN    44   // Hardware PWM
    #define SPINDLE_DIR_PIN          65
  #endif
 #endif
@ -542,7 +542,7 @@
      // Beeper on AUX-4
      #define BEEPER_PIN        33

-      // Buttons are directly attached using AUX-2
+      // Buttons are directly attached to AUX-2
      #if ENABLED(REPRAPWORLD_KEYPAD)
        #define SHIFT_OUT       40
        #define SHIFT_CLK       44
--- a/Marlin/src/pins/mega/pins_MEGACONTROLLER.h
+++ b/Marlin/src/pins/mega/pins_MEGACONTROLLER.h
@ -161,6 +161,6 @@
 //
 // M3/M4/M5 - Spindle/Laser Control
 //
-#define SPINDLE_LASER_PWM_PIN     6   // MUST BE HARDWARE PWM
-#define SPINDLE_LASER_ENA_PIN     7   // Pin should have a pullup!
+#define SPINDLE_LASER_PWM_PIN     6   // Hardware PWM
+#define SPINDLE_LASER_ENA_PIN     7   // Pullup!
 #define SPINDLE_DIR_PIN           8
--- a/Marlin/src/pins/mega/pins_MEGATRONICS.h
+++ b/Marlin/src/pins/mega/pins_MEGATRONICS.h
@ -114,7 +114,7 @@
  #define LCD_PINS_D6     27
  #define LCD_PINS_D7     29

-  // Buttons directly attached using AUX-2
+  // Buttons directly attached to AUX-2
  #define BTN_EN1         59
  #define BTN_EN2         64
  #define BTN_ENC         43
@ -126,6 +126,6 @@
 //
 // M3/M4/M5 - Spindle/Laser Control
 //
-#define SPINDLE_LASER_PWM_PIN     3   // MUST BE HARDWARE PWM
-#define SPINDLE_LASER_ENA_PIN     4   // Pin should have a pullup!
+#define SPINDLE_LASER_PWM_PIN     3   // Hardware PWM
+#define SPINDLE_LASER_ENA_PIN     4   // Pullup!
 #define SPINDLE_DIR_PIN          11
--- a/Marlin/src/pins/mega/pins_MEGATRONICS_2.h
+++ b/Marlin/src/pins/mega/pins_MEGATRONICS_2.h
@ -141,6 +141,6 @@
 //
 // M3/M4/M5 - Spindle/Laser Control
 //
-#define SPINDLE_LASER_PWM_PIN     3   // MUST BE HARDWARE PWM
-#define SPINDLE_LASER_ENA_PIN    16   // Pin should have a pullup!
+#define SPINDLE_LASER_PWM_PIN     3   // Hardware PWM
+#define SPINDLE_LASER_ENA_PIN    16   // Pullup!
 #define SPINDLE_DIR_PIN          11
--- a/Marlin/src/pins/mega/pins_MEGATRONICS_3.h
+++ b/Marlin/src/pins/mega/pins_MEGATRONICS_3.h
@ -174,8 +174,8 @@
 // M3/M4/M5 - Spindle/Laser Control
 //
 #if DISABLED(REPRAPWORLD_KEYPAD)        // try to use the keypad connector first
-  #define SPINDLE_LASER_PWM_PIN    44   // MUST BE HARDWARE PWM
-  #define SPINDLE_LASER_ENA_PIN    43   // Pin should have a pullup!
+  #define SPINDLE_LASER_PWM_PIN    44   // Hardware PWM
+  #define SPINDLE_LASER_ENA_PIN    43   // Pullup!
  #define SPINDLE_DIR_PIN          42
 #elif EXTRUDERS <= 2
  // Hijack the last extruder so that we can get the PWM signal off the Y breakout
@ -189,7 +189,7 @@
  #define Y_ENABLE_PIN             23
  #define Y_STEP_PIN               22
  #define Y_DIR_PIN                60
-  #define SPINDLE_LASER_PWM_PIN     4   // MUST BE HARDWARE PWM
-  #define SPINDLE_LASER_ENA_PIN    17   // Pin should have a pullup!
+  #define SPINDLE_LASER_PWM_PIN     4   // Hardware PWM
+  #define SPINDLE_LASER_ENA_PIN    17   // Pullup!
  #define SPINDLE_DIR_PIN           5
 #endif
--- a/Marlin/src/pins/rambo/pins_EINSY_RAMBO.h
+++ b/Marlin/src/pins/rambo/pins_EINSY_RAMBO.h
@ -135,8 +135,8 @@
 // M3/M4/M5 - Spindle/Laser Control
 //
 // use P1 connector for spindle pins
-#define SPINDLE_LASER_PWM_PIN     9   // MUST BE HARDWARE PWM
-#define SPINDLE_LASER_ENA_PIN    18   // Pin should have a pullup!
+#define SPINDLE_LASER_PWM_PIN     9   // Hardware PWM
+#define SPINDLE_LASER_ENA_PIN    18   // Pullup!
 #define SPINDLE_DIR_PIN          19

 //
--- a/Marlin/src/pins/rambo/pins_EINSY_RETRO.h
+++ b/Marlin/src/pins/rambo/pins_EINSY_RETRO.h
@ -149,8 +149,8 @@
 // M3/M4/M5 - Spindle/Laser Control
 //
 // use P1 connector for spindle pins
-#define SPINDLE_LASER_PWM_PIN     9   // MUST BE HARDWARE PWM
-#define SPINDLE_LASER_ENA_PIN    18   // Pin should have a pullup!
+#define SPINDLE_LASER_PWM_PIN     9   // Hardware PWM
+#define SPINDLE_LASER_ENA_PIN    18   // Pullup!
 #define SPINDLE_DIR_PIN          19

 //
--- a/Marlin/src/pins/rambo/pins_MINIRAMBO.h
+++ b/Marlin/src/pins/rambo/pins_MINIRAMBO.h
@ -125,8 +125,8 @@
 // M3/M4/M5 - Spindle/Laser Control
 //
 // use P1 connector for spindle pins
-#define SPINDLE_LASER_PWM_PIN     9   // MUST BE HARDWARE PWM
-#define SPINDLE_LASER_ENA_PIN    18   // Pin should have a pullup!
+#define SPINDLE_LASER_PWM_PIN     9   // Hardware PWM
+#define SPINDLE_LASER_ENA_PIN    18   // Pullup!
 #define SPINDLE_DIR_PIN          19

 //
--- a/Marlin/src/pins/rambo/pins_RAMBO.h
+++ b/Marlin/src/pins/rambo/pins_RAMBO.h
@ -149,8 +149,8 @@
 //
 // M3/M4/M5 - Spindle/Laser Control
 //
-#define SPINDLE_LASER_PWM_PIN    45   // MUST BE HARDWARE PWM
-#define SPINDLE_LASER_ENA_PIN    31   // Pin should have a pullup!
+#define SPINDLE_LASER_PWM_PIN    45   // Hardware PWM
+#define SPINDLE_LASER_ENA_PIN    31   // Pullup!
 #define SPINDLE_DIR_PIN          32

 //
--- a/Marlin/src/pins/ramps/pins_3DRAG.h
+++ b/Marlin/src/pins/ramps/pins_3DRAG.h
@ -44,7 +44,7 @@
 #define RAMPS_D9_PIN        8
 #define MOSFET_D_PIN       12

-#define CASE_LIGHT_PIN     -1   // MUST BE HARDWARE PWM but one is not available on expansion header
+#define CASE_LIGHT_PIN     -1   // Hardware PWM but one is not available on expansion header

 #include "pins_RAMPS.h"

@ -152,11 +152,11 @@
    #define Z_DIR_PIN                28
    #define Z_ENABLE_PIN             24
    #define Z_STEP_PIN               26
-    #define SPINDLE_LASER_PWM_PIN    46   // MUST BE HARDWARE PWM
-    #define SPINDLE_LASER_ENA_PIN    62   // Pin should have a pullup!
+    #define SPINDLE_LASER_PWM_PIN    46   // Hardware PWM
+    #define SPINDLE_LASER_ENA_PIN    62   // Pullup!
    #define SPINDLE_DIR_PIN          48
  #elif !BOTH(ULTRA_LCD, NEWPANEL)     // use expansion header if no LCD in use
-    #define SPINDLE_LASER_ENA_PIN    16   // Pin should have a pullup/pulldown!
+    #define SPINDLE_LASER_ENA_PIN    16   // Pullup or pulldown!
    #define SPINDLE_DIR_PIN          17
  #endif
 #endif
--- a/Marlin/src/pins/ramps/pins_AZTEEG_X3.h
+++ b/Marlin/src/pins/ramps/pins_AZTEEG_X3.h
@ -92,7 +92,7 @@
    #undef SERVO0_PIN
    #define SERVO0_PIN     11
  #endif
-  #define SPINDLE_LASER_PWM_PIN     7   // MUST BE HARDWARE PWM
-  #define SPINDLE_LASER_ENA_PIN    20   // Pin should have a pullup!
+  #define SPINDLE_LASER_PWM_PIN     7   // Hardware PWM
+  #define SPINDLE_LASER_ENA_PIN    20   // Pullup!
  #define SPINDLE_DIR_PIN          21
 #endif
--- a/Marlin/src/pins/ramps/pins_AZTEEG_X3_PRO.h
+++ b/Marlin/src/pins/ramps/pins_AZTEEG_X3_PRO.h
@ -160,10 +160,9 @@

 #if HAS_CUTTER   // EXP2 header
  #if ANY(VIKI2, miniVIKI)
-    #undef BTN_EN2
-    #define BTN_EN2             31   // need 7 for the spindle speed PWM
+    #define BTN_EN2        31   // Pin 7 needed for Spindle PWM
  #endif
-  #define SPINDLE_LASER_PWM_PIN     7   // must have a hardware PWM
-  #define SPINDLE_LASER_ENA_PIN    20   // Pin should have a pullup!
-  #define SPINDLE_DIR_PIN          21
+  #define SPINDLE_LASER_PWM_PIN  7   // Hardware PWM
+  #define SPINDLE_LASER_ENA_PIN 20   // Pullup!
+  #define SPINDLE_DIR_PIN       21
 #endif
--- a/Marlin/src/pins/ramps/pins_BAM_DICE_DUE.h
+++ b/Marlin/src/pins/ramps/pins_BAM_DICE_DUE.h
@ -34,9 +34,9 @@
 //
 // M3/M4/M5 - Spindle/Laser Control
 //
-#define SPINDLE_LASER_ENA_PIN    66   // Pin should have a pullup/pulldown!
+#define SPINDLE_LASER_ENA_PIN    66   // Pullup or pulldown!
 #define SPINDLE_DIR_PIN          67
-#define SPINDLE_LASER_PWM_PIN    44   // MUST BE HARDWARE PWM
+#define SPINDLE_LASER_PWM_PIN    44   // Hardware PWM

 #include "pins_RAMPS.h"

--- a/Marlin/src/pins/ramps/pins_BQ_ZUM_MEGA_3D.h
+++ b/Marlin/src/pins/ramps/pins_BQ_ZUM_MEGA_3D.h
@ -50,8 +50,8 @@
 //
 // M3/M4/M5 - Spindle/Laser Control
 //
-#define SPINDLE_LASER_ENA_PIN    40   // Pin should have a pullup/pulldown!
-#define SPINDLE_LASER_PWM_PIN    44   // MUST BE HARDWARE PWM
+#define SPINDLE_LASER_ENA_PIN    40   // Pullup or pulldown!
+#define SPINDLE_LASER_PWM_PIN    44   // Hardware PWM
 #define SPINDLE_DIR_PIN          42

 //
@ -94,7 +94,7 @@
 #undef PS_ON_PIN                // 12
 #define PS_ON_PIN          81   // External Power Supply

-#define CASE_LIGHT_PIN     44   // MUST BE HARDWARE PWM
+#define CASE_LIGHT_PIN     44   // Hardware PWM


 // This board has headers for Z-min, Z-max and IND_S_5V *but* as the bq team
--- a/Marlin/src/pins/ramps/pins_FORMBOT_RAPTOR.h
+++ b/Marlin/src/pins/ramps/pins_FORMBOT_RAPTOR.h
@ -113,9 +113,9 @@

 // SPI for Max6675 or Max31855 Thermocouple
 #if DISABLED(SDSUPPORT)
-  #define MAX6675_SS_PIN   66 // Do not use pin 53 if there is even the remote possibility of using Display/SD card
+  #define MAX6675_SS_PIN   66   // Don't use 53 if there is even the remote possibility of using Display/SD card
 #else
-  #define MAX6675_SS_PIN   66 // Do not use pin 49 as this is tied to the switch inside the SD card socket to detect if there is an SD card present
+  #define MAX6675_SS_PIN   66   // Don't use 49 as this is tied to the switch inside the SD card socket to detect if there is an SD card present
 #endif

 //
--- a/Marlin/src/pins/ramps/pins_FORMBOT_RAPTOR2.h
+++ b/Marlin/src/pins/ramps/pins_FORMBOT_RAPTOR2.h
@ -43,21 +43,21 @@
 //
 #if HAS_CUTTER && !PIN_EXISTS(SPINDLE_LASER_ENA)
  #if !NUM_SERVOS                       // Try to use servo connector first
-    #define SPINDLE_LASER_ENA_PIN     6 // Pin should have a pullup/pulldown!
-    #define SPINDLE_LASER_PWM_PIN     4 // MUST BE HARDWARE PWM
+    #define SPINDLE_LASER_ENA_PIN     6 // Pullup or pulldown!
+    #define SPINDLE_LASER_PWM_PIN     4 // Hardware PWM
    #define SPINDLE_DIR_PIN           5
  #elif !GREEDY_PANEL                   // Try to use AUX2
-    #define SPINDLE_LASER_ENA_PIN    40 // Pin should have a pullup/pulldown!
-    #define SPINDLE_LASER_PWM_PIN    44 // MUST BE HARDWARE PWM
+    #define SPINDLE_LASER_ENA_PIN    40 // Pullup or pulldown!
+    #define SPINDLE_LASER_PWM_PIN    44 // Hardware PWM
    #define SPINDLE_DIR_PIN          65
  #endif
 #endif

 #if ENABLED(CASE_LIGHT_ENABLE) && !PIN_EXISTS(CASE_LIGHT)
  #if NUM_SERVOS <= 1                   // Try to use servo connector first
-    #define CASE_LIGHT_PIN  6           // MUST BE HARDWARE PWM
+    #define CASE_LIGHT_PIN  6           // Hardware PWM
  #elif !GREEDY_PANEL                   // Try to use AUX2
-    #define CASE_LIGHT_PIN 44           // MUST BE HARDWARE PWM
+    #define CASE_LIGHT_PIN 44           // Hardware PWM
  #endif
 #endif

--- a/Marlin/src/pins/ramps/pins_FORMBOT_TREX2PLUS.h
+++ b/Marlin/src/pins/ramps/pins_FORMBOT_TREX2PLUS.h
@ -114,9 +114,9 @@

 // SPI for Max6675 or Max31855 Thermocouple
 #if DISABLED(SDSUPPORT)
-  #define MAX6675_SS_PIN   66 // Do not use pin 53 if there is even the remote possibility of using Display/SD card
+  #define MAX6675_SS_PIN   66   // Don't use 53 if there is even the remote possibility of using Display/SD card
 #else
-  #define MAX6675_SS_PIN   66 // Do not use pin 49 as this is tied to the switch inside the SD card socket to detect if there is an SD card present
+  #define MAX6675_SS_PIN   66   // Don't use 49 as this is tied to the switch inside the SD card socket to detect if there is an SD card present
 #endif

 //
--- a/Marlin/src/pins/ramps/pins_FORMBOT_TREX3.h
+++ b/Marlin/src/pins/ramps/pins_FORMBOT_TREX3.h
@ -114,9 +114,9 @@

 // SPI for Max6675 or Max31855 Thermocouple
 #if DISABLED(SDSUPPORT)
-  #define MAX6675_SS_PIN   66 // Do not use pin 53 if there is even the remote possibility of using Display/SD card
+  #define MAX6675_SS_PIN   66   // Don't use 53 if there is even the remote possibility of using Display/SD card
 #else
-  #define MAX6675_SS_PIN   66 // Do not use pin 49 as this is tied to the switch inside the SD card socket to detect if there is an SD card present
+  #define MAX6675_SS_PIN   66   // Don't use 49 as this is tied to the switch inside the SD card socket to detect if there is an SD card present
 #endif


@ -144,8 +144,8 @@
  #define LED_PIN          13
 #endif

-#define SPINDLE_LASER_PWM_PIN    -1   // MUST BE HARDWARE PWM
-#define SPINDLE_LASER_ENA_PIN     4   // Pin should have a pullup!
+#define SPINDLE_LASER_PWM_PIN    -1   // Hardware PWM
+#define SPINDLE_LASER_ENA_PIN     4   // Pullup!

 // Use the RAMPS 1.4 Analog input 5 on the AUX2 connector
 #define FILWIDTH_PIN        5   // Analog Input
--- a/Marlin/src/pins/ramps/pins_MKS_BASE.h
+++ b/Marlin/src/pins/ramps/pins_MKS_BASE.h
@ -44,8 +44,8 @@
 //
 // M3/M4/M5 - Spindle/Laser Control
 //
-#define SPINDLE_LASER_PWM_PIN     2   // MUST BE HARDWARE PWM
-#define SPINDLE_LASER_ENA_PIN    15   // Pin should have a pullup!
+#define SPINDLE_LASER_PWM_PIN     2   // Hardware PWM
+#define SPINDLE_LASER_ENA_PIN    15   // Pullup!
 #define SPINDLE_DIR_PIN          19

 #include "pins_RAMPS.h"
--- a/Marlin/src/pins/ramps/pins_RAMPS.h
+++ b/Marlin/src/pins/ramps/pins_RAMPS.h
@ -169,9 +169,9 @@

 // SPI for Max6675 or Max31855 Thermocouple
 #if DISABLED(SDSUPPORT)
-  #define MAX6675_SS_PIN   66   // Do not use pin 53 if there is even the remote possibility of using Display/SD card
+  #define MAX6675_SS_PIN   66   // Don't use 53 if there is even the remote possibility of using Display/SD card
 #else
-  #define MAX6675_SS_PIN   66   // Do not use pin 49 as this is tied to the switch inside the SD card socket to detect if there is an SD card present
+  #define MAX6675_SS_PIN   66   // Don't use 49 as this is tied to the switch inside the SD card socket to detect if there is an SD card present
 #endif

 //
@ -262,9 +262,9 @@

 #if ENABLED(CASE_LIGHT_ENABLE) && !defined(CASE_LIGHT_PIN) && !defined(SPINDLE_LASER_ENA_PIN)
  #if NUM_SERVOS <= 1 // try to use servo connector first
-    #define CASE_LIGHT_PIN  6   // MUST BE HARDWARE PWM
+    #define CASE_LIGHT_PIN  6   // Hardware PWM
  #elif AUX2_PINS_FREE
-    #define CASE_LIGHT_PIN 44   // MUST BE HARDWARE PWM
+    #define CASE_LIGHT_PIN 44   // Hardware PWM
  #endif
 #endif

@ -273,12 +273,12 @@
 //
 #if HAS_CUTTER && !defined(SPINDLE_LASER_ENA_PIN)
  #if !NUM_SERVOS                         // Use servo connector if possible
-    #define SPINDLE_LASER_ENA_PIN     4   // Pin should have a pullup/pulldown!
-    #define SPINDLE_LASER_PWM_PIN     6   // MUST BE HARDWARE PWM
+    #define SPINDLE_LASER_ENA_PIN     4   // Pullup or pulldown!
+    #define SPINDLE_LASER_PWM_PIN     6   // Hardware PWM
    #define SPINDLE_DIR_PIN           5
  #elif AUX2_PINS_FREE
-    #define SPINDLE_LASER_ENA_PIN    40   // Pin should have a pullup/pulldown!
-    #define SPINDLE_LASER_PWM_PIN    44   // MUST BE HARDWARE PWM
+    #define SPINDLE_LASER_ENA_PIN    40   // Pullup or pulldown!
+    #define SPINDLE_LASER_PWM_PIN    44   // Hardware PWM
    #define SPINDLE_DIR_PIN          65
  #else
    #error "No auto-assignable Spindle/Laser pins available."
@ -621,7 +621,7 @@
      // Beeper on AUX-4
      #define BEEPER_PIN        33

-      // Buttons are directly attached using AUX-2
+      // Buttons are directly attached to AUX-2
      #if ENABLED(REPRAPWORLD_KEYPAD)
        #define SHIFT_OUT       40
        #define SHIFT_CLK       44
--- a/Marlin/src/pins/ramps/pins_RAMPS_OLD.h
+++ b/Marlin/src/pins/ramps/pins_RAMPS_OLD.h
@ -78,9 +78,9 @@

 // SPI for Max6675 or Max31855 Thermocouple
 #if DISABLED(SDSUPPORT)
-  #define MAX6675_SS_PIN   66   // Do not use pin 53 if there is even the remote possibility of using Display/SD card
+  #define MAX6675_SS_PIN   66   // Don't use 53 if there is even the remote possibility of using Display/SD card
 #else
-  #define MAX6675_SS_PIN   66   // Do not use pin 49 as this is tied to the switch inside the SD card socket to detect if there is an SD card present
+  #define MAX6675_SS_PIN   66   // Don't use 49 as this is tied to the switch inside the SD card socket to detect if there is an SD card present
 #endif

 //
@ -106,11 +106,11 @@
 #define SDPOWER            48
 #define SDSS               53
 #define LED_PIN            13
-#define CASE_LIGHT_PIN     45   // MUST BE HARDWARE PWM
+#define CASE_LIGHT_PIN     45   // Hardware PWM

 //
 // M3/M4/M5 - Spindle/Laser Control
 //
-#define SPINDLE_LASER_ENA_PIN    41   // Pin should have a pullup/pulldown!
-#define SPINDLE_LASER_PWM_PIN    45   // MUST BE HARDWARE PWM
+#define SPINDLE_LASER_ENA_PIN    41   // Pullup or pulldown!
+#define SPINDLE_LASER_PWM_PIN    45   // Hardware PWM
 #define SPINDLE_DIR_PIN          43
--- a/Marlin/src/pins/ramps/pins_RUMBA.h
+++ b/Marlin/src/pins/ramps/pins_RUMBA.h
@ -156,10 +156,10 @@
 // M3/M4/M5 - Spindle/Laser Control
 //
 #ifndef SPINDLE_LASER_PWM_PIN
-  #define SPINDLE_LASER_PWM_PIN 4   // MUST BE HARDWARE PWM. Pin 4 interrupts OC0* and OC1* always in use?
+  #define SPINDLE_LASER_PWM_PIN 4   // Hardware PWM. Pin 4 interrupts OC0* and OC1* always in use?
 #endif
 #ifndef SPINDLE_LASER_ENA_PIN
-  #define SPINDLE_LASER_ENA_PIN    14   // Pin should have a pullup!
+  #define SPINDLE_LASER_ENA_PIN    14   // Pullup!
 #endif
 #ifndef SPINDLE_DIR_PIN
  #define SPINDLE_DIR_PIN  15
--- a/Marlin/src/pins/ramps/pins_ULTIMAIN_2.h
+++ b/Marlin/src/pins/ramps/pins_ULTIMAIN_2.h
@ -132,8 +132,8 @@
 #if HAS_CUTTER   // use the LED_PIN for spindle speed control or case light
  #undef LED_PIN
  #define SPINDLE_DIR_PIN          16
-  #define SPINDLE_LASER_ENA_PIN    17   // Pin should have a pullup!
-  #define SPINDLE_LASER_PWM_PIN     8   // MUST BE HARDWARE PWM
+  #define SPINDLE_LASER_ENA_PIN    17   // Pullup!
+  #define SPINDLE_LASER_PWM_PIN     8   // Hardware PWM
 #else
  #undef LED_PIN
  #define CASE_LIGHT_PIN            8
--- a/Marlin/src/pins/ramps/pins_ULTIMAKER.h
+++ b/Marlin/src/pins/ramps/pins_ULTIMAKER.h
@ -160,6 +160,6 @@
 //
 // M3/M4/M5 - Spindle/Laser Control
 //
-#define SPINDLE_LASER_PWM_PIN     9   // MUST BE HARDWARE PWM
-#define SPINDLE_LASER_ENA_PIN    10   // Pin should have a pullup!
+#define SPINDLE_LASER_PWM_PIN     9   // Hardware PWM
+#define SPINDLE_LASER_ENA_PIN    10   // Pullup!
 #define SPINDLE_DIR_PIN          11   // use the EXP3 PWM header
--- a/Marlin/src/pins/ramps/pins_ULTIMAKER_OLD.h
+++ b/Marlin/src/pins/ramps/pins_ULTIMAKER_OLD.h
@ -242,13 +242,13 @@
     */
    #if EXTRUDERS == 1
      #define SPINDLE_DIR_PIN          43
-      #define SPINDLE_LASER_PWM_PIN    45   // MUST BE HARDWARE PWM
-      #define SPINDLE_LASER_ENA_PIN    41   // Pin should have a pullup!
+      #define SPINDLE_LASER_PWM_PIN    45   // Hardware PWM
+      #define SPINDLE_LASER_ENA_PIN    41   // Pullup!
    #elif TEMP_SENSOR_BED == 0  // Can't use E0 so see if HEATER_BED_PIN is available
      #undef HEATER_BED_PIN
      #define SPINDLE_DIR_PIN          38   // Probably pin 4 on 10 pin connector closest to the E0 socket
-      #define SPINDLE_LASER_PWM_PIN     4   // MUST BE HARDWARE PWM - Special precautions usually needed.
-      #define SPINDLE_LASER_ENA_PIN    40   // Pin should have a pullup! (Probably pin 6 on the 10-pin
+      #define SPINDLE_LASER_PWM_PIN     4   // Hardware PWM - Special precautions usually needed.
+      #define SPINDLE_LASER_ENA_PIN    40   // Pullup! (Probably pin 6 on the 10-pin
                                            // connector closest to the E0 socket)
    #endif
  #endif
--- a/Marlin/src/pins/ramps/pins_Z_BOLT_X_SERIES.h
+++ b/Marlin/src/pins/ramps/pins_Z_BOLT_X_SERIES.h
@ -161,9 +161,9 @@

 #if ENABLED(CASE_LIGHT_ENABLE) && !defined(CASE_LIGHT_PIN) && !defined(SPINDLE_LASER_ENA_PIN)
  #if NUM_SERVOS <= 1 // try to use servo connector first
-    #define CASE_LIGHT_PIN    6   // MUST BE HARDWARE PWM
+    #define CASE_LIGHT_PIN    6   // Hardware PWM
  #elif AUX2_PINS_FREE
-    #define CASE_LIGHT_PIN   44   // MUST BE HARDWARE PWM
+    #define CASE_LIGHT_PIN   44   // Hardware PWM
  #endif
 #endif

@ -172,12 +172,12 @@
 //
 #if HAS_CUTTER && !PIN_EXISTS(SPINDLE_LASER_ENA)
  #if !defined(NUM_SERVOS) || NUM_SERVOS == 0 // try to use servo connector first
-    #define SPINDLE_LASER_ENA_PIN     4   // Pin should have a pullup/pulldown!
-    #define SPINDLE_LASER_PWM_PIN     6   // MUST BE HARDWARE PWM
+    #define SPINDLE_LASER_ENA_PIN     4   // Pullup or pulldown!
+    #define SPINDLE_LASER_PWM_PIN     6   // Hardware PWM
    #define SPINDLE_DIR_PIN           5
  #elif AUX2_PINS_FREE
-    #define SPINDLE_LASER_ENA_PIN    40   // Pin should have a pullup/pulldown!
-    #define SPINDLE_LASER_PWM_PIN    44   // MUST BE HARDWARE PWM
+    #define SPINDLE_LASER_ENA_PIN    40   // Pullup or pulldown!
+    #define SPINDLE_LASER_PWM_PIN    44   // Hardware PWM
    #define SPINDLE_DIR_PIN          65
  #endif
 #endif
--- a/Marlin/src/pins/sam/pins_RAMPS_DUO.h
+++ b/Marlin/src/pins/sam/pins_RAMPS_DUO.h
@ -67,9 +67,9 @@
 // SPI for Max6675 or Max31855 Thermocouple
 #undef MAX6675_SS_PIN
 #if DISABLED(SDSUPPORT)
-  #define MAX6675_SS_PIN   69   // Do not use pin 53 if there is even the remote possibility of using Display/SD card
+  #define MAX6675_SS_PIN   69   // Don't use 53 if there is even the remote possibility of using Display/SD card
 #else
-  #define MAX6675_SS_PIN   69   // Do not use pin 49 as this is tied to the switch inside the SD card socket to detect if there is an SD card present
+  #define MAX6675_SS_PIN   69   // Don't use 49 as this is tied to the switch inside the SD card socket to detect if there is an SD card present
 #endif

 //
--- a/Marlin/src/pins/sam/pins_RAMPS_FD_V1.h
+++ b/Marlin/src/pins/sam/pins_RAMPS_FD_V1.h
@ -230,6 +230,6 @@
 //
 #if HOTENDS < 3 && HAS_CUTTER && !PIN_EXISTS(SPINDLE_LASER_ENA)
  #define SPINDLE_LASER_ENA_PIN 45   // Use E2 ENA
-  #define SPINDLE_LASER_PWM_PIN 12   // MUST BE HARDWARE PWM
+  #define SPINDLE_LASER_PWM_PIN 12   // Hardware PWM
  #define SPINDLE_DIR_PIN       47   // Use E2 DIR
 #endif
--- a/Marlin/src/pins/sam/pins_RAMPS_SMART.h
+++ b/Marlin/src/pins/sam/pins_RAMPS_SMART.h
@ -90,9 +90,9 @@
 // SPI for Max6675 or Max31855 Thermocouple
 #undef MAX6675_SS_PIN
 #if DISABLED(SDSUPPORT)
-  #define MAX6675_SS_PIN   67   // Do not use pin 53 if there is even the remote possibility of using Display/SD card
+  #define MAX6675_SS_PIN   67   // Don't use 53 if there is even the remote possibility of using Display/SD card
 #else
-  #define MAX6675_SS_PIN   67   // Do not use pin 49 as this is tied to the switch inside the SD card socket to detect if there is an SD card present
+  #define MAX6675_SS_PIN   67   // Don't use 49 as this is tied to the switch inside the SD card socket to detect if there is an SD card present
 #endif

 //
--- a/Marlin/src/pins/sanguino/pins_GEN6.h
+++ b/Marlin/src/pins/sanguino/pins_GEN6.h
@ -106,7 +106,7 @@
 //
 #define SDSS               17
 #define DEBUG_PIN           0
-#define CASE_LIGHT_PIN     16   // MUST BE HARDWARE PWM
+#define CASE_LIGHT_PIN     16   // Hardware PWM

 // RS485 pins
 #define TX_ENABLE_PIN      12
@ -115,6 +115,6 @@
 //
 // M3/M4/M5 - Spindle/Laser Control
 //
-#define SPINDLE_LASER_ENA_PIN     5   // Pin should have a pullup/pulldown!
-#define SPINDLE_LASER_PWM_PIN    16   // MUST BE HARDWARE PWM
+#define SPINDLE_LASER_ENA_PIN     5   // Pullup or pulldown!
+#define SPINDLE_LASER_PWM_PIN    16   // Hardware PWM
 #define SPINDLE_DIR_PIN           6
--- a/Marlin/src/pins/sanguino/pins_GEN7_12.h
+++ b/Marlin/src/pins/sanguino/pins_GEN7_12.h
@ -123,9 +123,9 @@
 #define PS_ON_PIN          15

 #if GEN7_VERSION < 13
-  #define CASE_LIGHT_PIN   16   // MUST BE HARDWARE PWM
+  #define CASE_LIGHT_PIN   16   // Hardware PWM
 #else     // Gen7 v1.3 removed the I2C connector & signals so need to get PWM off the PC power supply header
-  #define CASE_LIGHT_PIN   15   // MUST BE HARDWARE PWM
+  #define CASE_LIGHT_PIN   15   // Hardware PWM
 #endif

 // All these generations of Gen7 supply thermistor power
@ -141,10 +141,10 @@
 //
 // M3/M4/M5 - Spindle/Laser Control
 //
-#define SPINDLE_LASER_ENA_PIN    10   // Pin should have a pullup/pulldown!
+#define SPINDLE_LASER_ENA_PIN    10   // Pullup or pulldown!
 #define SPINDLE_DIR_PIN          11
 #if GEN7_VERSION < 13
-  #define SPINDLE_LASER_PWM_PIN  16   // MUST BE HARDWARE PWM
+  #define SPINDLE_LASER_PWM_PIN  16   // Hardware PWM
 #else  // Gen7 v1.3 removed the I2C connector & signals so need to get PWM off the PC power supply header
-  #define SPINDLE_LASER_PWM_PIN  15   // MUST BE HARDWARE PWM
+  #define SPINDLE_LASER_PWM_PIN  15   // Hardware PWM
 #endif
--- a/Marlin/src/pins/sanguino/pins_GEN7_14.h
+++ b/Marlin/src/pins/sanguino/pins_GEN7_14.h
@ -102,7 +102,7 @@
 // Misc. Functions
 //
 #define PS_ON_PIN          15
-#define CASE_LIGHT_PIN     15    // MUST BE HARDWARE PWM
+#define CASE_LIGHT_PIN     15    // Hardware PWM

 // A pin for debugging
 #define DEBUG_PIN           0
@ -114,6 +114,6 @@
 //
 // M3/M4/M5 - Spindle/Laser Control
 //
-#define SPINDLE_LASER_ENA_PIN    20   // Pin should have a pullup/pulldown!
-#define SPINDLE_LASER_PWM_PIN    16   // MUST BE HARDWARE PWM
+#define SPINDLE_LASER_ENA_PIN    20   // Pullup or pulldown!
+#define SPINDLE_LASER_PWM_PIN    16   // Hardware PWM
 #define SPINDLE_DIR_PIN          21
--- a/Marlin/src/pins/sanguino/pins_GEN7_CUSTOM.h
+++ b/Marlin/src/pins/sanguino/pins_GEN7_CUSTOM.h
@ -104,7 +104,7 @@
 //
 #define SDSS               31   // SCL pin of I2C header || CS Pin for SD Card support
 #define PS_ON_PIN          19
-#define CASE_LIGHT_PIN     15   // MUST BE HARDWARE PWM
+#define CASE_LIGHT_PIN     15   // Hardware PWM

 // A pin for debugging
 #define DEBUG_PIN          -1
@ -134,6 +134,6 @@
 //
 // M3/M4/M5 - Spindle/Laser Control
 //
-#define SPINDLE_LASER_ENA_PIN     5   // Pin should have a pullup/pulldown!
-#define SPINDLE_LASER_PWM_PIN    16   // MUST BE HARDWARE PWM
+#define SPINDLE_LASER_ENA_PIN     5   // Pullup or pulldown!
+#define SPINDLE_LASER_PWM_PIN    16   // Hardware PWM
 #define SPINDLE_DIR_PIN           6
--- a/Marlin/src/pins/sanguino/pins_SANGUINOLOLU_11.h
+++ b/Marlin/src/pins/sanguino/pins_SANGUINOLOLU_11.h
@ -139,7 +139,7 @@
 #endif

 #if NONE(SPINDLE_FEATURE, LASER_FEATURE) && ENABLED(SANGUINOLOLU_V_1_2) && !BOTH(ULTRA_LCD, NEWPANEL)  // try to use IO Header
-  #define CASE_LIGHT_PIN     4   // MUST BE HARDWARE PWM  - see if IO Header is available
+  #define CASE_LIGHT_PIN     4   // Hardware PWM  - see if IO Header is available
 #endif

 /**
@ -280,8 +280,8 @@
 #if HAS_CUTTER
  #if !MB(AZTEEG_X1) && ENABLED(SANGUINOLOLU_V_1_2) && !BOTH(ULTRA_LCD, NEWPANEL)  // try to use IO Header

-    #define SPINDLE_LASER_ENA_PIN    10   // Pin should have a pullup/pulldown!
-    #define SPINDLE_LASER_PWM_PIN     4   // MUST BE HARDWARE PWM
+    #define SPINDLE_LASER_ENA_PIN    10   // Pullup or pulldown!
+    #define SPINDLE_LASER_PWM_PIN     4   // Hardware PWM
    #define SPINDLE_DIR_PIN          11

  #elif !MB(MELZI)  // use X stepper motor socket
@ -319,8 +319,8 @@
    #define X_DIR_PIN                 0
    #define X_ENABLE_PIN             14
    #define X_STEP_PIN                1
-    #define SPINDLE_LASER_PWM_PIN    15   // MUST BE HARDWARE PWM
-    #define SPINDLE_LASER_ENA_PIN    21   // Pin should have a pullup!
+    #define SPINDLE_LASER_PWM_PIN    15   // Hardware PWM
+    #define SPINDLE_LASER_ENA_PIN    21   // Pullup!
    #define SPINDLE_DIR_PIN          -1   // No pin available on the socket for the direction pin
  #endif
 #endif
--- a/Marlin/src/pins/stm32/pins_ARMED.h
+++ b/Marlin/src/pins/stm32/pins_ARMED.h
@ -113,13 +113,13 @@
 //
 // Heaters / Fans
 //
-#define HEATER_0_PIN       PA1   // PWM pin
-#define HEATER_1_PIN       PA2   // PWM pin
-#define HEATER_BED_PIN     PA0   // PWM pin
+#define HEATER_0_PIN       PA1   // Hardware PWM
+#define HEATER_1_PIN       PA2   // Hardware PWM
+#define HEATER_BED_PIN     PA0   // Hardware PWM

-#define FAN_PIN            PC6   // PWM pin, Part cooling fan
-#define FAN1_PIN           PC7   // PWM pin, Extruder fan
-#define FAN2_PIN           PC8   // PWM pin, Controller fan
+#define FAN_PIN            PC6   // Hardware PWM, Part cooling fan
+#define FAN1_PIN           PC7   // Hardware PWM, Extruder fan
+#define FAN2_PIN           PC8   // Hardware PWM, Controller fan

 //
 // Misc functions
--- a/Marlin/src/pins/stm32/pins_BEAST.h
+++ b/Marlin/src/pins/stm32/pins_BEAST.h
@ -255,7 +255,7 @@
      // Beeper on AUX-4
      #define BEEPER_PIN        33

-      // buttons are directly attached using AUX-2
+      // buttons are directly attached to AUX-2
      #if ENABLED(REPRAPWORLD_KEYPAD)
        #define BTN_EN1         64
        #define BTN_EN2         59
--- a/Marlin/src/pins/stm32/pins_CHITU3D.h
+++ b/Marlin/src/pins/stm32/pins_CHITU3D.h
@ -253,7 +253,7 @@
      // Beeper on AUX-4
      #define BEEPER_PIN        33

-      // buttons are directly attached using AUX-2
+      // buttons are directly attached to AUX-2
      #if ENABLED(REPRAPWORLD_KEYPAD)
        #define BTN_EN1         64
        #define BTN_EN2         59
--- a/Marlin/src/pins/stm32/pins_STM32F1R.h
+++ b/Marlin/src/pins/stm32/pins_STM32F1R.h
@ -233,7 +233,7 @@
      // Beeper on AUX-4
      #define BEEPER_PIN        33

-      // buttons are directly attached using AUX-2
+      // buttons are directly attached to AUX-2
      #if ENABLED(REPRAPWORLD_KEYPAD)
        #define BTN_EN1         64
        #define BTN_EN2         59
--- a/Marlin/src/pins/stm32/pins_STM3R_MINI.h
+++ b/Marlin/src/pins/stm32/pins_STM3R_MINI.h
@ -249,7 +249,7 @@
      // Beeper on AUX-4
      #define BEEPER_PIN        33

-      // buttons are directly attached using AUX-2
+      // buttons are directly attached to AUX-2
      #if ENABLED(REPRAPWORLD_KEYPAD)
        #define BTN_EN1         64
        #define BTN_EN2         59