добавлена проверка - не превышает ли номер вывода из аргумента функции общее кол-во выводов

variants/start/pins_arduino.h

@@ -107,10 +107,7 @@ static const uint8_t A7 = PIN_A7;
 // determines the address of the port by the board pin number to which this pin belongs on the MCU
 GPIO_TypeDef* digitalPinToPort(uint32_t digPinNumber);     
 // determines the pin address inside the port by the board pin number
-static inline HAL_PinsTypeDef digitalPinToBitMask(uint32_t digitalPinNumber)
-{
-  return (HAL_PinsTypeDef)(1 << (digitalPinNumber & 0xF));
-}
+HAL_PinsTypeDef digitalPinToBitMask(uint32_t digitalPinNumber);
 // total number of pins available for initialization
 static inline uint16_t pinCommonQty(void)
 {

variants/start/variant.c

@@ -23,22 +23,31 @@
 
 GPIO_TypeDef *digitalPinToPort(uint32_t digitalPinNumber)
 {
-  if (digitalPinNumber < 16u)
+  GPIO_TypeDef* port = NULL;
+  if (digitalPinNumber < pinCommonQty())
   {
-    return GPIO_0;
-  }
-  else if ((digitalPinNumber >= 16u) && (digitalPinNumber < 32u))
-  {
-    return GPIO_1;
-  }
-  else if ((digitalPinNumber >= 32u) && (digitalPinNumber < 40u))
-  {
-    return GPIO_2;
+    if (digitalPinNumber < 16u)
+      port = GPIO_0;
+    else if ((digitalPinNumber >= 16u) && (digitalPinNumber < 32u))
+      port = GPIO_1;
+    else if ((digitalPinNumber >= 32u) && (digitalPinNumber < 40u))
+      port = GPIO_2;
   }
   else
+    ErrorMsgHandler("digitalPinToPort(): pin number exceeds the total number of pins");
+  return port;
+}
+
+// determines the pin address inside the port by the board pin number
+HAL_PinsTypeDef digitalPinToBitMask(uint32_t digitalPinNumber)
+{
+  if (digitalPinNumber >= pinCommonQty())
   {
-    return NULL;
+    ErrorMsgHandler("digitalPinToBitMask(): pin number exceeds the total number of pins");
+    return NC;
   }
+
+  return (HAL_PinsTypeDef)(1 << (digitalPinNumber & 0xF));
 }
 
 // the function returns a reference to the OUTPUT address of the GPIO register