Добавлена поддержка FreeRTOS

cores/arduino/main.cpp

@@ -2,8 +2,14 @@
 
 #include "Arduino.h"
 
+// Weak empty variant initialization function.
+// May be redefined by variant files.
+void initVariant() __attribute__((weak));
+void initVariant() { }
+
 int main()
 {
+    initVariant(); // for freeRTOS
     setup();
     post_init();
 

cores/arduino/mik32/shared/ldscripts/spifi_cpp.ld

@@ -123,6 +123,7 @@ SECTIONS {
         PROVIDE(__STACK_START__ = .);
         . += STACK_SIZE;
         PROVIDE(__C_STACK_TOP__ = .);
+        PROVIDE(__freertos_irq_stack_top = .);
         PROVIDE(__STACK_END__ = .);
     } >ram