добавлена кастомная функция-обработчик прерываний, которую пользователи могут сами определять "наверху"

cores/arduino/trap_handler.c

@@ -11,12 +11,37 @@ void __attribute__((weak)) wire_interrupt_handler(void)
 }
 void __attribute__((weak)) servo_interrupt_handler(void)
 {
-    // dummy function for case when wire library is not in use
+    // dummy function for case when servo library is not in use
+}
+
+void __attribute__((weak)) ISR(void)
+{
+    /* 
+    A dummy function for the case when additional interrupts are not used in the project.
+    In the project, you need to create a function of the form:
+    extern "C" void ISR(void)
+    {
+        // timer16 is taken as an example
+        if (TIM16_GET_ARRM_INT_STATUS(htimer16_1_))
+        {
+            // necessary actions
+        }
+        // reset timer interrupt flags
+        TIM16_CLEAR_INT_MASK(htimer16_1_, 0xFFFFFFFF);
+    }
+    libraries required to use this example:
+    #include "mik32_hal_timer16.h"
+    #include "mik32_hal_irq.h"
+    #include "wiring_LL.h" 
+    */
 }
 
 // ---------------------------------------------- //
 void __attribute__((noinline, section(".ram_text"), optimize("O3"))) trap_handler (void)  
 {
+    // custom interrupt
+    ISR();
+
     // gpio interrupt
     if (EPIC_CHECK_GPIO_IRQ())
         gpio_interrupt_handler();