diff --git a/hw/mcu/nxp/lpc_chip_11u6x/inc/lpc_types.h b/hw/mcu/nxp/lpc_chip_11u6x/inc/lpc_types.h
index 14c7b605..d8be3340 100644
--- a/hw/mcu/nxp/lpc_chip_11u6x/inc/lpc_types.h
+++ b/hw/mcu/nxp/lpc_chip_11u6x/inc/lpc_types.h
@@ -82,10 +82,10 @@ typedef enum {
 } TRANSFER_BLOCK_T;
 
 /** Pointer to Function returning Void (any number of parameters) */
-typedef void (*PFV)();
+//typedef void (*PFV)();
 
 /** Pointer to Function returning int32_t (any number of parameters) */
-typedef int32_t (*PFI)();
+//typedef int32_t (*PFI)();
 
 /**
  * @}
diff --git a/hw/mcu/nxp/lpc_chip_11u6x/inc/pinint_11u6x.h b/hw/mcu/nxp/lpc_chip_11u6x/inc/pinint_11u6x.h
index 660ba0ee..448fa225 100644
--- a/hw/mcu/nxp/lpc_chip_11u6x/inc/pinint_11u6x.h
+++ b/hw/mcu/nxp/lpc_chip_11u6x/inc/pinint_11u6x.h
@@ -123,14 +123,14 @@ typedef enum Chip_PININT_BITSLICE_CFG {
  * @return	Nothing
  * @note	This function should be used after the Chip_GPIO_Init() function.
  */
-STATIC INLINE void Chip_PININT_Init(LPC_PIN_INT_T *pPININT) {}
+STATIC INLINE void Chip_PININT_Init(LPC_PIN_INT_T *pPININT) { (void) pPININT; }
 
 /**
  * @brief	De-Initialize Pin interrupt block
  * @param	pPININT	: The base address of Pin interrupt block
  * @return	Nothing
  */
-STATIC INLINE void Chip_PININT_DeInit(LPC_PIN_INT_T *pPININT) {}
+STATIC INLINE void Chip_PININT_DeInit(LPC_PIN_INT_T *pPININT) {  (void) pPININT; }
 
 /**
  * @brief	Configure the pins as edge sensitive in Pin interrupt block
diff --git a/hw/mcu/nxp/lpc_chip_11u6x/inc/rtc_11u6x.h b/hw/mcu/nxp/lpc_chip_11u6x/inc/rtc_11u6x.h
index a208a875..ad19b9af 100644
--- a/hw/mcu/nxp/lpc_chip_11u6x/inc/rtc_11u6x.h
+++ b/hw/mcu/nxp/lpc_chip_11u6x/inc/rtc_11u6x.h
@@ -207,6 +207,7 @@ STATIC INLINE void Chip_RTC_DisableWakeup(LPC_RTC_T *pRTC, uint32_t ints)
  */
 STATIC INLINE uint32_t Chip_RTC_ClearStatus(LPC_RTC_T *pRTC, uint32_t stsMask)
 {
+  (void) stsMask;
 	return pRTC->CTRL;
 }
 
diff --git a/hw/mcu/nxp/lpc_chip_11u6x/src/gpio_11u6x.c b/hw/mcu/nxp/lpc_chip_11u6x/src/gpio_11u6x.c
index 63d71231..8f975e3f 100644
--- a/hw/mcu/nxp/lpc_chip_11u6x/src/gpio_11u6x.c
+++ b/hw/mcu/nxp/lpc_chip_11u6x/src/gpio_11u6x.c
@@ -50,12 +50,14 @@
 /* Initialize GPIO block */
 void Chip_GPIO_Init(LPC_GPIO_T *pGPIO)
 {
+  (void) pGPIO;
 	Chip_Clock_EnablePeriphClock(SYSCTL_CLOCK_GPIO);
 }
 
 /* De-Initialize GPIO block */
 void Chip_GPIO_DeInit(LPC_GPIO_T *pGPIO)
 {
+  (void) pGPIO;
 	Chip_Clock_DisablePeriphClock(SYSCTL_CLOCK_GPIO);
 }
 
diff --git a/hw/mcu/nxp/lpc_chip_11u6x/src/uart_0_11u6x.c b/hw/mcu/nxp/lpc_chip_11u6x/src/uart_0_11u6x.c
index 9c89cd91..8c163707 100644
--- a/hw/mcu/nxp/lpc_chip_11u6x/src/uart_0_11u6x.c
+++ b/hw/mcu/nxp/lpc_chip_11u6x/src/uart_0_11u6x.c
@@ -65,6 +65,7 @@ void Chip_UART0_Init(LPC_USART0_T *pUART)
 /* De-initializes the pUART peripheral */
 void Chip_UART0_DeInit(LPC_USART0_T *pUART)
 {
+  (void) pUART;
 	Chip_Clock_DisablePeriphClock(SYSCTL_CLOCK_UART0);
 }
 
diff --git a/hw/mcu/nxp/lpc_chip_13xx/inc/lpc_types.h b/hw/mcu/nxp/lpc_chip_13xx/inc/lpc_types.h
index 14c7b605..0f373fb1 100644
--- a/hw/mcu/nxp/lpc_chip_13xx/inc/lpc_types.h
+++ b/hw/mcu/nxp/lpc_chip_13xx/inc/lpc_types.h
@@ -82,10 +82,10 @@ typedef enum {
 } TRANSFER_BLOCK_T;
 
 /** Pointer to Function returning Void (any number of parameters) */
-typedef void (*PFV)();
+// typedef void (*PFV)();
 
 /** Pointer to Function returning int32_t (any number of parameters) */
-typedef int32_t (*PFI)();
+// typedef int32_t (*PFI)();
 
 /**
  * @}
diff --git a/hw/mcu/nxp/lpc_chip_13xx/inc/pinint_13xx.h b/hw/mcu/nxp/lpc_chip_13xx/inc/pinint_13xx.h
index 25b77174..0e902760 100644
--- a/hw/mcu/nxp/lpc_chip_13xx/inc/pinint_13xx.h
+++ b/hw/mcu/nxp/lpc_chip_13xx/inc/pinint_13xx.h
@@ -78,14 +78,14 @@ typedef struct {			/*!< PIN_INT Structure */
  * @return	Nothing
  * @note	This function should be used after the Chip_GPIO_Init() function.
  */
-STATIC INLINE void Chip_PININT_Init(LPC_PIN_INT_T *pPININT) {}
+STATIC INLINE void Chip_PININT_Init(LPC_PIN_INT_T *pPININT) { (void) pPININT; }
 
 /**
  * @brief	De-Initialize Pin interrupt block
  * @param	pPININT	: The base address of Pin interrupt block
  * @return	Nothing
  */
-STATIC INLINE void Chip_PININT_DeInit(LPC_PIN_INT_T *pPININT) {}
+STATIC INLINE void Chip_PININT_DeInit(LPC_PIN_INT_T *pPININT) { (void) pPININT; }
 
 /**
  * @brief	Configure the pins as edge sensitive in Pin interrupt block
diff --git a/hw/mcu/nxp/lpc_chip_13xx/src/gpio_13xx_1.c b/hw/mcu/nxp/lpc_chip_13xx/src/gpio_13xx_1.c
index 367d1d36..98b27078 100644
--- a/hw/mcu/nxp/lpc_chip_13xx/src/gpio_13xx_1.c
+++ b/hw/mcu/nxp/lpc_chip_13xx/src/gpio_13xx_1.c
@@ -52,12 +52,14 @@
 /* Initialize GPIO block */
 void Chip_GPIO_Init(LPC_GPIO_T *pGPIO)
 {
+  (void) pGPIO;
 	Chip_Clock_EnablePeriphClock(SYSCTL_CLOCK_GPIO);
 }
 
 /* De-Initialize GPIO block */
 void Chip_GPIO_DeInit(LPC_GPIO_T *pGPIO)
 {
+  (void) pGPIO;
 	Chip_Clock_DisablePeriphClock(SYSCTL_CLOCK_GPIO);
 }
 
diff --git a/hw/mcu/nxp/lpc_chip_13xx/src/uart_13xx.c b/hw/mcu/nxp/lpc_chip_13xx/src/uart_13xx.c
index 4a776ab3..43eb958e 100644
--- a/hw/mcu/nxp/lpc_chip_13xx/src/uart_13xx.c
+++ b/hw/mcu/nxp/lpc_chip_13xx/src/uart_13xx.c
@@ -66,6 +66,7 @@ void Chip_UART_Init(LPC_USART_T *pUART)
 /* De-initializes the pUART peripheral */
 void Chip_UART_DeInit(LPC_USART_T *pUART)
 {
+  (void) pUART;
 	Chip_Clock_DisablePeriphClock(SYSCTL_CLOCK_UART0);
 }
 
diff --git a/hw/mcu/nxp/lpc_chip_175x_6x/inc/lpc_types.h b/hw/mcu/nxp/lpc_chip_175x_6x/inc/lpc_types.h
index af89d56b..0f373fb1 100644
--- a/hw/mcu/nxp/lpc_chip_175x_6x/inc/lpc_types.h
+++ b/hw/mcu/nxp/lpc_chip_175x_6x/inc/lpc_types.h
@@ -82,10 +82,10 @@ typedef enum {
 } TRANSFER_BLOCK_T;
 
 /** Pointer to Function returning Void (any number of parameters) */
-typedef void (*PFV)(void);
+// typedef void (*PFV)();
 
 /** Pointer to Function returning int32_t (any number of parameters) */
-typedef int32_t (*PFI)(void);
+// typedef int32_t (*PFI)();
 
 /**
  * @}
diff --git a/hw/mcu/nxp/lpc_chip_175x_6x/src/clock_17xx_40xx.c b/hw/mcu/nxp/lpc_chip_175x_6x/src/clock_17xx_40xx.c
index 42e4d7cc..bed85b15 100644
--- a/hw/mcu/nxp/lpc_chip_175x_6x/src/clock_17xx_40xx.c
+++ b/hw/mcu/nxp/lpc_chip_175x_6x/src/clock_17xx_40xx.c
@@ -328,6 +328,7 @@ uint32_t Chip_Clock_GetSYSCLKRate(void)
 	case (uint32_t) SYSCTL_PLLCLKSRC_RTC:
 		return Chip_Clock_GetRTCOscRate();
 #endif
+        default: break;
 	}
 	return 0;
 }
diff --git a/hw/mcu/nxp/lpc_chip_18xx/inc/ccan_18xx_43xx.h b/hw/mcu/nxp/lpc_chip_18xx/inc/ccan_18xx_43xx.h
index 7966d1a7..a01cab2c 100644
--- a/hw/mcu/nxp/lpc_chip_18xx/inc/ccan_18xx_43xx.h
+++ b/hw/mcu/nxp/lpc_chip_18xx/inc/ccan_18xx_43xx.h
@@ -451,6 +451,7 @@ STATIC INLINE void Chip_CCAN_ClearMsgIntPend(LPC_CCAN_T *pCCAN,
 											 uint8_t msgNum,
 											 CCAN_TRANSFER_DIR_T dir)
 {
+  (void) dir;
 	Chip_CCAN_TransferMsgObject(pCCAN, IFSel, CCAN_IF_CMDMSK_RD | CCAN_IF_CMDMSK_R_CLRINTPND, msgNum);
 }
 
diff --git a/hw/mcu/nxp/lpc_chip_18xx/inc/enet_18xx_43xx.h b/hw/mcu/nxp/lpc_chip_18xx/inc/enet_18xx_43xx.h
index 62ac2a19..36f6ad6a 100644
--- a/hw/mcu/nxp/lpc_chip_18xx/inc/enet_18xx_43xx.h
+++ b/hw/mcu/nxp/lpc_chip_18xx/inc/enet_18xx_43xx.h
@@ -582,6 +582,7 @@ STATIC INLINE void Chip_ENET_RXDisable(LPC_ENET_T *pENET)
  */
 STATIC INLINE void Chip_ENET_RMIIEnable(LPC_ENET_T *pENET)
 {
+  (void) pENET;
 	LPC_CREG->CREG6 |= 0x4;
 }
 
@@ -595,6 +596,7 @@ STATIC INLINE void Chip_ENET_RMIIEnable(LPC_ENET_T *pENET)
  */
 STATIC INLINE void Chip_ENET_MIIEnable(LPC_ENET_T *pENET)
 {
+  (void) pENET;
 	LPC_CREG->CREG6 &= ~0x7;
 }
 
diff --git a/hw/mcu/nxp/lpc_chip_18xx/inc/lpc_types.h b/hw/mcu/nxp/lpc_chip_18xx/inc/lpc_types.h
index 79380696..25eee0e4 100644
--- a/hw/mcu/nxp/lpc_chip_18xx/inc/lpc_types.h
+++ b/hw/mcu/nxp/lpc_chip_18xx/inc/lpc_types.h
@@ -88,10 +88,10 @@ typedef enum {
 } TRANSFER_BLOCK_T;
 
 /** Pointer to Function returning Void (any number of parameters) */
-typedef void (*PFV)();
+// typedef void (*PFV)();
 
 /** Pointer to Function returning int32_t (any number of parameters) */
-typedef int32_t (*PFI)();
+// typedef int32_t (*PFI)();
 
 /**
  * @}
diff --git a/hw/mcu/nxp/lpc_chip_18xx/inc/pinint_18xx_43xx.h b/hw/mcu/nxp/lpc_chip_18xx/inc/pinint_18xx_43xx.h
index 3d93b5a8..9efffb43 100644
--- a/hw/mcu/nxp/lpc_chip_18xx/inc/pinint_18xx_43xx.h
+++ b/hw/mcu/nxp/lpc_chip_18xx/inc/pinint_18xx_43xx.h
@@ -77,14 +77,14 @@ typedef struct {			/*!< PIN_INT Structure */
  * @return	Nothing
  * @note	This function should be used after the Chip_GPIO_Init() function.
  */
-STATIC INLINE void Chip_PININT_Init(LPC_PIN_INT_T *pPININT) {}
+STATIC INLINE void Chip_PININT_Init(LPC_PIN_INT_T *pPININT) { (void) pPININT; }
 
 /**
  * @brief	De-Initialize Pin interrupt block
  * @param	pPININT	: The base address of Pin interrupt block
  * @return	Nothing
  */
-STATIC INLINE void Chip_PININT_DeInit(LPC_PIN_INT_T *pPININT) {}
+STATIC INLINE void Chip_PININT_DeInit(LPC_PIN_INT_T *pPININT) { (void) pPININT; }
 
 /**
  * @brief	Configure the pins as edge sensitive in Pin interrupt block
diff --git a/hw/mcu/nxp/lpc_chip_18xx/src/clock_18xx_43xx.c b/hw/mcu/nxp/lpc_chip_18xx/src/clock_18xx_43xx.c
index fe4cc487..1cd48589 100644
--- a/hw/mcu/nxp/lpc_chip_18xx/src/clock_18xx_43xx.c
+++ b/hw/mcu/nxp/lpc_chip_18xx/src/clock_18xx_43xx.c
@@ -194,6 +194,7 @@ static uint32_t Chip_Clock_TestMainPLLMultiplier(uint32_t InputHz, uint32_t Test
 /* Returns clock rate out of a divider */
 static uint32_t Chip_Clock_GetDivRate(CHIP_CGU_CLKIN_T clock, CHIP_CGU_IDIV_T divider)
 {
+  (void) clock;
 	CHIP_CGU_CLKIN_T input;
 	uint32_t div;
 
diff --git a/hw/mcu/nxp/lpc_chip_18xx/src/gpio_18xx_43xx.c b/hw/mcu/nxp/lpc_chip_18xx/src/gpio_18xx_43xx.c
index 2b849612..1509d011 100644
--- a/hw/mcu/nxp/lpc_chip_18xx/src/gpio_18xx_43xx.c
+++ b/hw/mcu/nxp/lpc_chip_18xx/src/gpio_18xx_43xx.c
@@ -50,11 +50,13 @@
 /* Initialize GPIO block */
 void Chip_GPIO_Init(LPC_GPIO_T *pGPIO)
 {
+  (void) pGPIO;
 }
 
 /* De-Initialize GPIO block */
 void Chip_GPIO_DeInit(LPC_GPIO_T *pGPIO)
 {
+  (void) pGPIO;
 }
 
 
diff --git a/hw/mcu/nxp/lpc_chip_18xx/src/sysinit_18xx_43xx.c b/hw/mcu/nxp/lpc_chip_18xx/src/sysinit_18xx_43xx.c
index efbecf87..d5db584f 100644
--- a/hw/mcu/nxp/lpc_chip_18xx/src/sysinit_18xx_43xx.c
+++ b/hw/mcu/nxp/lpc_chip_18xx/src/sysinit_18xx_43xx.c
@@ -133,7 +133,7 @@ void Chip_SetupCoreClock(CHIP_CGU_CLKIN_T clkin, uint32_t core_freq, bool setbas
 		/* Setup system base clocks and initial states. This won't enable and
 		   disable individual clocks, but sets up the base clock sources for
 		   each individual peripheral clock. */
-		for (i = 0; i < (sizeof(InitClkStates) / sizeof(InitClkStates[0])); i++) {
+		for (i = 0; i < (int) (sizeof(InitClkStates) / sizeof(InitClkStates[0])); i++) {
 			Chip_Clock_SetBaseClock(InitClkStates[i].clk, InitClkStates[i].clkin,
 									InitClkStates[i].autoblock_enab, InitClkStates[i].powerdn);
 		}
diff --git a/hw/mcu/nxp/lpc_chip_18xx/src/uart_18xx_43xx.c b/hw/mcu/nxp/lpc_chip_18xx/src/uart_18xx_43xx.c
index 186d8b15..2bdb9e94 100644
--- a/hw/mcu/nxp/lpc_chip_18xx/src/uart_18xx_43xx.c
+++ b/hw/mcu/nxp/lpc_chip_18xx/src/uart_18xx_43xx.c
@@ -132,6 +132,8 @@ void Chip_UART_Init(LPC_USART_T *pUART)
 
 	/* Disable fractional divider */
 	pUART->FDR = 0x10;
+
+  (void) tmp;
 }
 
 /* De-initializes the pUART peripheral */
diff --git a/hw/mcu/nxp/lpc_chip_40xx/inc/gpio_17xx_40xx.h b/hw/mcu/nxp/lpc_chip_40xx/inc/gpio_17xx_40xx.h
index 3ea66737..ed772bc0 100644
--- a/hw/mcu/nxp/lpc_chip_40xx/inc/gpio_17xx_40xx.h
+++ b/hw/mcu/nxp/lpc_chip_40xx/inc/gpio_17xx_40xx.h
@@ -63,6 +63,7 @@ typedef struct {				/* GPIO_PORT Structure */
  */
 STATIC INLINE void Chip_GPIO_Init(LPC_GPIO_T *pGPIO)
 {
+  (void) pGPIO;
 	Chip_Clock_EnablePeriphClock(SYSCTL_CLOCK_GPIO);
 }
 
@@ -73,6 +74,7 @@ STATIC INLINE void Chip_GPIO_Init(LPC_GPIO_T *pGPIO)
  */
 STATIC INLINE void Chip_GPIO_DeInit(LPC_GPIO_T *pGPIO)
 {
+  (void) pGPIO;
 	Chip_Clock_DisablePeriphClock(SYSCTL_CLOCK_GPIO);
 }
 
diff --git a/hw/mcu/nxp/lpc_chip_40xx/inc/gpioint_17xx_40xx.h b/hw/mcu/nxp/lpc_chip_40xx/inc/gpioint_17xx_40xx.h
index 4f74323c..be42deba 100644
--- a/hw/mcu/nxp/lpc_chip_40xx/inc/gpioint_17xx_40xx.h
+++ b/hw/mcu/nxp/lpc_chip_40xx/inc/gpioint_17xx_40xx.h
@@ -79,6 +79,7 @@ typedef enum {
  */
 STATIC INLINE void Chip_GPIOINT_Init(LPC_GPIOINT_T *pGPIOINT)
 {
+  (void) pGPIOINT;
 	Chip_Clock_EnablePeriphClock(SYSCTL_CLOCK_GPIO);
 }
 
@@ -92,6 +93,7 @@ STATIC INLINE void Chip_GPIOINT_Init(LPC_GPIOINT_T *pGPIOINT)
  */
 STATIC INLINE void Chip_GPIOINT_DeInit(LPC_GPIOINT_T *pGPIOINT)
 {
+  (void) pGPIOINT;
 	Chip_Clock_DisablePeriphClock(SYSCTL_CLOCK_GPIO);
 }
 
diff --git a/hw/mcu/nxp/lpc_chip_40xx/inc/iocon_17xx_40xx.h b/hw/mcu/nxp/lpc_chip_40xx/inc/iocon_17xx_40xx.h
index 8d5f055b..b5a94679 100644
--- a/hw/mcu/nxp/lpc_chip_40xx/inc/iocon_17xx_40xx.h
+++ b/hw/mcu/nxp/lpc_chip_40xx/inc/iocon_17xx_40xx.h
@@ -150,6 +150,7 @@ typedef struct {
  */
 STATIC INLINE void Chip_IOCON_Init(LPC_IOCON_T *pIOCON)
 {
+  (void) pIOCON;
 	Chip_Clock_EnablePeriphClock(SYSCTL_CLOCK_GPIO);
 }
 
diff --git a/hw/mcu/nxp/lpc_chip_40xx/inc/lpc_types.h b/hw/mcu/nxp/lpc_chip_40xx/inc/lpc_types.h
index 14c7b605..0f373fb1 100644
--- a/hw/mcu/nxp/lpc_chip_40xx/inc/lpc_types.h
+++ b/hw/mcu/nxp/lpc_chip_40xx/inc/lpc_types.h
@@ -82,10 +82,10 @@ typedef enum {
 } TRANSFER_BLOCK_T;
 
 /** Pointer to Function returning Void (any number of parameters) */
-typedef void (*PFV)();
+// typedef void (*PFV)();
 
 /** Pointer to Function returning int32_t (any number of parameters) */
-typedef int32_t (*PFI)();
+// typedef int32_t (*PFI)();
 
 /**
  * @}
diff --git a/hw/mcu/nxp/lpc_chip_40xx/inc/wwdt_17xx_40xx.h b/hw/mcu/nxp/lpc_chip_40xx/inc/wwdt_17xx_40xx.h
index b314c9e5..607230ef 100644
--- a/hw/mcu/nxp/lpc_chip_40xx/inc/wwdt_17xx_40xx.h
+++ b/hw/mcu/nxp/lpc_chip_40xx/inc/wwdt_17xx_40xx.h
@@ -101,7 +101,7 @@ void Chip_WWDT_Init(LPC_WWDT_T *pWWDT);
  * @param	pWWDT	: The base of WatchDog Timer peripheral on the chip
  * @return	None
  */
-STATIC INLINE void Chip_WWDT_DeInit(LPC_WWDT_T *pWWDT) {}
+STATIC INLINE void Chip_WWDT_DeInit(LPC_WWDT_T *pWWDT) { (void) pWWDT; }
 
 /**
  * @brief	Set WDT timeout constant value used for feed
diff --git a/hw/mcu/nxp/lpc_chip_40xx/src/clock_17xx_40xx.c b/hw/mcu/nxp/lpc_chip_40xx/src/clock_17xx_40xx.c
index 42e4d7cc..bed85b15 100644
--- a/hw/mcu/nxp/lpc_chip_40xx/src/clock_17xx_40xx.c
+++ b/hw/mcu/nxp/lpc_chip_40xx/src/clock_17xx_40xx.c
@@ -328,6 +328,7 @@ uint32_t Chip_Clock_GetSYSCLKRate(void)
 	case (uint32_t) SYSCTL_PLLCLKSRC_RTC:
 		return Chip_Clock_GetRTCOscRate();
 #endif
+        default: break;
 	}
 	return 0;
 }
diff --git a/hw/mcu/nxp/lpc_chip_43xx/inc/ccan_18xx_43xx.h b/hw/mcu/nxp/lpc_chip_43xx/inc/ccan_18xx_43xx.h
index 7966d1a7..a01cab2c 100644
--- a/hw/mcu/nxp/lpc_chip_43xx/inc/ccan_18xx_43xx.h
+++ b/hw/mcu/nxp/lpc_chip_43xx/inc/ccan_18xx_43xx.h
@@ -451,6 +451,7 @@ STATIC INLINE void Chip_CCAN_ClearMsgIntPend(LPC_CCAN_T *pCCAN,
 											 uint8_t msgNum,
 											 CCAN_TRANSFER_DIR_T dir)
 {
+  (void) dir;
 	Chip_CCAN_TransferMsgObject(pCCAN, IFSel, CCAN_IF_CMDMSK_RD | CCAN_IF_CMDMSK_R_CLRINTPND, msgNum);
 }
 
diff --git a/hw/mcu/nxp/lpc_chip_43xx/inc/enet_18xx_43xx.h b/hw/mcu/nxp/lpc_chip_43xx/inc/enet_18xx_43xx.h
index 62ac2a19..36f6ad6a 100644
--- a/hw/mcu/nxp/lpc_chip_43xx/inc/enet_18xx_43xx.h
+++ b/hw/mcu/nxp/lpc_chip_43xx/inc/enet_18xx_43xx.h
@@ -582,6 +582,7 @@ STATIC INLINE void Chip_ENET_RXDisable(LPC_ENET_T *pENET)
  */
 STATIC INLINE void Chip_ENET_RMIIEnable(LPC_ENET_T *pENET)
 {
+  (void) pENET;
 	LPC_CREG->CREG6 |= 0x4;
 }
 
@@ -595,6 +596,7 @@ STATIC INLINE void Chip_ENET_RMIIEnable(LPC_ENET_T *pENET)
  */
 STATIC INLINE void Chip_ENET_MIIEnable(LPC_ENET_T *pENET)
 {
+  (void) pENET;
 	LPC_CREG->CREG6 &= ~0x7;
 }
 
diff --git a/hw/mcu/nxp/lpc_chip_43xx/inc/lpc_types.h b/hw/mcu/nxp/lpc_chip_43xx/inc/lpc_types.h
index 79380696..25eee0e4 100644
--- a/hw/mcu/nxp/lpc_chip_43xx/inc/lpc_types.h
+++ b/hw/mcu/nxp/lpc_chip_43xx/inc/lpc_types.h
@@ -88,10 +88,10 @@ typedef enum {
 } TRANSFER_BLOCK_T;
 
 /** Pointer to Function returning Void (any number of parameters) */
-typedef void (*PFV)();
+// typedef void (*PFV)();
 
 /** Pointer to Function returning int32_t (any number of parameters) */
-typedef int32_t (*PFI)();
+// typedef int32_t (*PFI)();
 
 /**
  * @}
diff --git a/hw/mcu/nxp/lpc_chip_43xx/inc/pinint_18xx_43xx.h b/hw/mcu/nxp/lpc_chip_43xx/inc/pinint_18xx_43xx.h
index 3d93b5a8..9efffb43 100644
--- a/hw/mcu/nxp/lpc_chip_43xx/inc/pinint_18xx_43xx.h
+++ b/hw/mcu/nxp/lpc_chip_43xx/inc/pinint_18xx_43xx.h
@@ -77,14 +77,14 @@ typedef struct {			/*!< PIN_INT Structure */
  * @return	Nothing
  * @note	This function should be used after the Chip_GPIO_Init() function.
  */
-STATIC INLINE void Chip_PININT_Init(LPC_PIN_INT_T *pPININT) {}
+STATIC INLINE void Chip_PININT_Init(LPC_PIN_INT_T *pPININT) { (void) pPININT; }
 
 /**
  * @brief	De-Initialize Pin interrupt block
  * @param	pPININT	: The base address of Pin interrupt block
  * @return	Nothing
  */
-STATIC INLINE void Chip_PININT_DeInit(LPC_PIN_INT_T *pPININT) {}
+STATIC INLINE void Chip_PININT_DeInit(LPC_PIN_INT_T *pPININT) { (void) pPININT; }
 
 /**
  * @brief	Configure the pins as edge sensitive in Pin interrupt block
diff --git a/hw/mcu/nxp/lpc_chip_43xx/src/clock_18xx_43xx.c b/hw/mcu/nxp/lpc_chip_43xx/src/clock_18xx_43xx.c
index fe4cc487..1cd48589 100644
--- a/hw/mcu/nxp/lpc_chip_43xx/src/clock_18xx_43xx.c
+++ b/hw/mcu/nxp/lpc_chip_43xx/src/clock_18xx_43xx.c
@@ -194,6 +194,7 @@ static uint32_t Chip_Clock_TestMainPLLMultiplier(uint32_t InputHz, uint32_t Test
 /* Returns clock rate out of a divider */
 static uint32_t Chip_Clock_GetDivRate(CHIP_CGU_CLKIN_T clock, CHIP_CGU_IDIV_T divider)
 {
+  (void) clock;
 	CHIP_CGU_CLKIN_T input;
 	uint32_t div;
 
diff --git a/hw/mcu/nxp/lpc_chip_43xx/src/gpio_18xx_43xx.c b/hw/mcu/nxp/lpc_chip_43xx/src/gpio_18xx_43xx.c
index 2b849612..1509d011 100644
--- a/hw/mcu/nxp/lpc_chip_43xx/src/gpio_18xx_43xx.c
+++ b/hw/mcu/nxp/lpc_chip_43xx/src/gpio_18xx_43xx.c
@@ -50,11 +50,13 @@
 /* Initialize GPIO block */
 void Chip_GPIO_Init(LPC_GPIO_T *pGPIO)
 {
+  (void) pGPIO;
 }
 
 /* De-Initialize GPIO block */
 void Chip_GPIO_DeInit(LPC_GPIO_T *pGPIO)
 {
+  (void) pGPIO;
 }
 
 
diff --git a/hw/mcu/nxp/lpc_chip_43xx/src/i2c_18xx_43xx.c b/hw/mcu/nxp/lpc_chip_43xx/src/i2c_18xx_43xx.c
index c9900096..04bf14d2 100644
--- a/hw/mcu/nxp/lpc_chip_43xx/src/i2c_18xx_43xx.c
+++ b/hw/mcu/nxp/lpc_chip_43xx/src/i2c_18xx_43xx.c
@@ -197,11 +197,11 @@ int handleMasterXferState(LPC_I2C_T *pI2C, I2C_XFER_T  *xfer)
 	/* Rx handling */
 	case 0x58:		/* Data Received and NACK sent */
 		cclr &= ~I2C_CON_STO;
-
+                /* FALLTHRU */
 	case 0x50:		/* Data Received and ACK sent */
 		*xfer->rxBuff++ = pI2C->DAT;
 		xfer->rxSz--;
-
+                /* FALLTHRU */
 	case 0x40:		/* SLA+R sent and ACK received */
 		if (xfer->rxSz > 1) {
 			cclr &= ~I2C_CON_AA;
@@ -292,7 +292,7 @@ int handleSlaveXferState(LPC_I2C_T *pI2C, I2C_XFER_T *xfer)
 	case 0xA8:		/* SLA+R received */
 	case 0xB0:		/* SLA+R received after losing arbitration */
 		xfer->slaveAddr = pI2C->DAT & ~1;
-
+                /* FALLTHRU */
 	case 0xB8:		/* DATA sent and ACK received */
 		pI2C->DAT = *xfer->txBuff++;
 		xfer->txSz--;
diff --git a/hw/mcu/nxp/lpc_chip_43xx/src/i2cm_18xx_43xx.c b/hw/mcu/nxp/lpc_chip_43xx/src/i2cm_18xx_43xx.c
index 5fab0b10..00fa1e07 100644
--- a/hw/mcu/nxp/lpc_chip_43xx/src/i2cm_18xx_43xx.c
+++ b/hw/mcu/nxp/lpc_chip_43xx/src/i2cm_18xx_43xx.c
@@ -100,7 +100,7 @@ uint32_t Chip_I2CM_XferHandler(LPC_I2C_T *pI2C, I2CM_XFER_T *xfer)
 			cclr &= ~I2C_CON_STO;
 			break;
 		}
-
+                /* FALLTHRU */
 	case 0x18:		/* SLA+W sent and ACK received */
 	case 0x28:		/* DATA sent and ACK received */
 		if (!xfer->txSz) {
@@ -124,7 +124,7 @@ uint32_t Chip_I2CM_XferHandler(LPC_I2C_T *pI2C, I2CM_XFER_T *xfer)
 	case 0x50:		/* Data Received and ACK sent */
 		*xfer->rxBuff++ = pI2C->DAT;
 		xfer->rxSz--;
-
+                /* FALLTHRU */
 	case 0x40:		/* SLA+R sent and ACK received */
 		if ((xfer->rxSz > 1) || (xfer->options & I2CM_XFER_OPTION_LAST_RX_ACK)) {
 			cclr &= ~I2C_CON_AA;
diff --git a/hw/mcu/nxp/lpc_chip_43xx/src/sysinit_18xx_43xx.c b/hw/mcu/nxp/lpc_chip_43xx/src/sysinit_18xx_43xx.c
index efbecf87..d5db584f 100644
--- a/hw/mcu/nxp/lpc_chip_43xx/src/sysinit_18xx_43xx.c
+++ b/hw/mcu/nxp/lpc_chip_43xx/src/sysinit_18xx_43xx.c
@@ -133,7 +133,7 @@ void Chip_SetupCoreClock(CHIP_CGU_CLKIN_T clkin, uint32_t core_freq, bool setbas
 		/* Setup system base clocks and initial states. This won't enable and
 		   disable individual clocks, but sets up the base clock sources for
 		   each individual peripheral clock. */
-		for (i = 0; i < (sizeof(InitClkStates) / sizeof(InitClkStates[0])); i++) {
+		for (i = 0; i < (int) (sizeof(InitClkStates) / sizeof(InitClkStates[0])); i++) {
 			Chip_Clock_SetBaseClock(InitClkStates[i].clk, InitClkStates[i].clkin,
 									InitClkStates[i].autoblock_enab, InitClkStates[i].powerdn);
 		}
diff --git a/hw/mcu/nxp/lpc_chip_43xx/src/uart_18xx_43xx.c b/hw/mcu/nxp/lpc_chip_43xx/src/uart_18xx_43xx.c
index 186d8b15..e162f00c 100644
--- a/hw/mcu/nxp/lpc_chip_43xx/src/uart_18xx_43xx.c
+++ b/hw/mcu/nxp/lpc_chip_43xx/src/uart_18xx_43xx.c
@@ -132,6 +132,8 @@ void Chip_UART_Init(LPC_USART_T *pUART)
 
 	/* Disable fractional divider */
 	pUART->FDR = 0x10;
+
+        (void) tmp;
 }
 
 /* De-initializes the pUART peripheral */