spindle pwm must be 32 bit on this cpu

Author: Miroslav Talasek

grbl/spindle_control.c

@@ -107,7 +107,7 @@ void spindle_init()
 
 uint8_t spindle_get_state()
 {
-  uint8_t pin = 0;
+  uint16_t pin = 0;
 	#ifdef VARIABLE_SPINDLE
     #ifdef USE_SPINDLE_DIR_AS_ENABLE_PIN
 #ifdef AVRTARGET

grbl/spindle_control.h

@@ -41,7 +41,7 @@ uint8_t spindle_get_state();
 // Called by spindle_sync() after sync and parking motion/spindle stop override during restore.
 #ifdef VARIABLE_SPINDLE
 #ifdef STM32F103C8
-#define SPINDLE_PWM_TYPE    uint16_t
+#define SPINDLE_PWM_TYPE    uint32_t
 #else
 #define SPINDLE_PWM_TYPE    uint8_t
 #endif

grbl/stepper.c

@@ -143,7 +143,7 @@ typedef struct {
     uint8_t prescaler;      // Without AMASS, a prescaler is required to adjust for slow timing.
   #endif
   #ifdef VARIABLE_SPINDLE
-    uint8_t spindle_pwm;
+    uint32_t spindle_pwm;
   #endif
 } segment_t;
 static segment_t segment_buffer[SEGMENT_BUFFER_SIZE];
@@ -233,7 +233,7 @@ typedef struct {
 
   #ifdef VARIABLE_SPINDLE
     float inv_rate;    // Used by PWM laser mode to speed up segment calculations.
-    uint8_t current_spindle_pwm;
+    uint32_t current_spindle_pwm;
   #endif
 } st_prep_t;
 static st_prep_t prep;
@@ -548,7 +548,7 @@ void Timer1Proc()
       #endif
 
       #ifdef VARIABLE_SPINDLE
-        // Set real-time spindle output as segment is loaded, just prior to the first step.
+        // Set real-time spindle output as segment is loaded, just prior to the first step. CMMT 
         spindle_set_speed(st.exec_segment->spindle_pwm);
       #endif