Diff: KEIL_LPC11U_COMMON_LIB/nmi.c

Revision:

1:0f1be4e75668

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/KEIL_LPC11U_COMMON_LIB/nmi.c	Mon May 28 00:13:23 2012 +0000
@@ -0,0 +1,98 @@
+/****************************************************************************
+ *   $Id:: nmi.c 9190 2012-02-16 20:59:45Z nxp41306                         $
+ *   Project: NXP LPC11Uxx NMI interrupt example
+ *
+ *   Description:
+ *     This file contains NMI interrupt handler code example.
+*
+****************************************************************************
+* Software that is described herein is for illustrative purposes only
+* which provides customers with programming information regarding the
+* products. This software is supplied "AS IS" without any warranties.
+* NXP Semiconductors assumes no responsibility or liability for the
+* use of the software, conveys no license or title under any patent,
+* copyright, or mask work right to the product. NXP Semiconductors
+* reserves the right to make changes in the software without
+* notification. NXP Semiconductors also make no representation or
+* warranty that such application will be suitable for the specified
+* use without further testing or modification.
+
+* Permission to use, copy, modify, and distribute this software and its 
+* documentation is hereby granted, under NXP Semiconductors' 
+* relevant copyright in the software, without fee, provided that it 
+* is used in conjunction with NXP Semiconductors microcontrollers.  This 
+* copyright, permission, and disclaimer notice must appear in all copies of 
+* this code.
+
+****************************************************************************/
+
+#include "LPC11Uxx.h"
+#include "nmi.h"
+
+#if NMI_ENABLED
+volatile uint32_t NMI_Counter[MAX_NMI_NUM];
+
+/*****************************************************************************
+** Function name:		NMI_Handler
+**
+** Descriptions:		NMI interrupt handler
+** parameters:		None			 
+** 						
+** Returned value:	None
+** 
+*****************************************************************************/
+void NMI_Handler( void )
+{
+  uint32_t regVal;
+
+  regVal = LPC_SYSCON->NMISRC;
+  regVal &=	~0x80000000;
+  if ( regVal < MAX_NMI_NUM )
+  {
+    if ( regVal == TIMER_16_0_IRQn )
+	{
+	  /* Use TIMER16_0_IRQHandler as example for real application. */ 	
+	  LPC_CT16B0->IR = 0xFF;	/* Clear timer16_0 interrupt */
+	}
+	else if ( regVal == TIMER_16_1_IRQn )
+	{
+	  /* Use TIMER16_1_IRQHandler as example for real application. */	
+	  LPC_CT16B1->IR = 0xFF;	/* Clear timer16_1 interrupt */
+	}
+    else if ( regVal == TIMER_32_0_IRQn )
+	{
+	  /* Use TIMER32_0_IRQHandler as example for real application. */ 	
+	  LPC_CT32B0->IR = 0xFF;	/* Clear timer32_0 interrupt */
+	}
+	else if ( regVal == TIMER_32_1_IRQn )
+	{
+	  /* Use TIMER32_0_IRQHandler as example for real application. */ 	
+	  LPC_CT32B1->IR = 0xFF;	/* Clear timer32_1 interrupt */
+	}
+	NMI_Counter[regVal]++; 
+  }
+  return;
+}
+
+/*****************************************************************************
+** Function name:		NMI_Init
+**
+** Descriptions:		NMI initialization
+** parameters:			NMI number			 
+** 						
+** Returned value:		None
+** 
+*****************************************************************************/
+void NMI_Init( uint32_t NMI_num )
+{
+  uint32_t i;
+
+  for ( i = 0; i < MAX_NMI_NUM; i++ )
+  {
+    NMI_Counter[i] = 0x0;
+  }
+  LPC_SYSCON->NMISRC = 0x80000000|NMI_num;
+  return;
+}
+
+#endif