external sync 24PPQN revised for v2

src/uClock.cpp

@@ -241,9 +241,6 @@ void uClockClass::resetCounters()
     ext_clock_tick = 0;
     ext_clock_us = 0;
     ext_interval_idx = 0;
-    //ext_mod24_counter = 0;
-    //ext_mod_step_counter = 0;
-    //ext_step_counter = 0;
     
     for (uint8_t i=0; i < EXT_INTERVAL_BUFFER_SIZE; i++) {
         ext_interval_buffer[i] = 0;
@@ -378,15 +375,20 @@ void uClockClass::handleExternalClock()
 
 void uClockClass::handleTimerInt()  
 {
-    // do we put a limit here to check external sync phase?
+    // reset mod24 counter reference ?
-    // try on at max PPQN
+    if (mod24_counter == mod24_ref)
+        mod24_counter = 0;
+
+    // process sync signals first please...
+    if (mod24_counter == 0) {
+
         if (mode == EXTERNAL_CLOCK) {
             // sync tick position with external tick clock
             if ((int_clock_tick < ext_clock_tick) || (int_clock_tick > (ext_clock_tick + 1))) {
                 int_clock_tick = ext_clock_tick;
                 tick = int_clock_tick * mod24_ref;
-            mod24_counter = int_clock_tick % mod24_ref;
+                mod24_counter = tick % mod24_ref;
-            mod_step_counter = int_clock_tick % mod_step_ref;
+                mod_step_counter = tick % mod_step_ref;
             }
 
             uint32_t counter = ext_interval;
@@ -411,12 +413,6 @@ void uClockClass::handleTimerInt()
             }
         }
 
-    // reset mod24 counter reference ?
-    if (mod24_counter == mod24_ref)
-        mod24_counter = 0;
-
-    // sync signals first please...
-    if (mod24_counter == 0) {
         if (onSync24Callback) {
             onSync24Callback(int_clock_tick);
         }