Fix chunk counter type for long chains

src/arch/samd51.h

@@ -198,17 +198,17 @@ uint32_t _PM_timerStop(Protomatter_core *core) {
 
 // See notes in core.c before the "blast" functions
 #if F_CPU >= 200000000
-#define _PM_clockHoldHigh asm("nop; nop; nop; nop; nop");
+#define _PM_clockHoldHigh asm("nop; nop");
-#define _PM_clockHoldLow asm("nop; nop");
+#define _PM_clockHoldLow asm("nop; nop; nop; nop; nop");
 #elif F_CPU >= 180000000
-#define _PM_clockHoldHigh asm("nop; nop; nop; nop");
+#define _PM_clockHoldHigh asm("nop; nop");
-#define _PM_clockHoldLow asm("nop");
+#define _PM_clockHoldLow asm("nop; nop; nop; nop");
 #elif F_CPU >= 150000000
-#define _PM_clockHoldHigh asm("nop; nop; nop");
+#define _PM_clockHoldHigh asm("nop");
-#define _PM_clockHoldLow asm("nop");
+#define _PM_clockHoldLow asm("nop; nop; nop");
 #else
-#define _PM_clockHoldHigh asm("nop; nop; nop");
+#define _PM_clockHoldHigh asm("nop");
-#define _PM_clockHoldLow asm("nop");
+#define _PM_clockHoldLow asm("nop; nop");
 #endif
 
 #define _PM_minMinPeriod 160

src/core.c

@@ -726,7 +726,7 @@ IRAM_ATTR static void blast_byte(Protomatter_core *core, uint8_t *data) {
   _PM_PORT_TYPE rgbclock = core->rgbAndClockMask; // RGB + clock bit
 #endif
   _PM_PORT_TYPE clock = core->clockMask; // Clock bit
-  uint8_t chunks = (core->chainBits + (_PM_chunkSize - 1)) / _PM_chunkSize;
+  uint16_t chunks = (core->chainBits + (_PM_chunkSize - 1)) / _PM_chunkSize;
 
   // PORT has already been initialized with RGB data + clock bits
   // all LOW, so we don't need to initialize that state here.