int_vec_handler.c

东南大学开发的ARM7芯片SEP4020的IIS测试代码

/*************************************************************************************
 *	Copyright (c) 2007 by PROCHIP Limited.
 *	PROPRIETARY RIGHTS of PROCHIP Limited are involved in the subject matter of this 
 *	material.  All manufacturing, reproduction, use, and sales rights 
 *	pertaining to this subject matter are governed by the license agreement.
 *	The recipient of this software implicitly accepts the terms of the license.
 *
 *	File Name:  int_vec_handler.c
 *
 *	File Description: 
 *
 *    Version         Date            Author           
 *------------------------------------------------------------------------------------    
 *    0.0.1           2005.3.22       Michael <[e-mail]>           
 *   		      	
 *************************************************************************************
 */
 
#include <stdio.h>
#include "intc.h"

extern void DmaInt(void);


INT_VECTOR vector[]={
					/* interrupt number,            handler */
					
					{	INTSRC_NULL,                NULL        },
					{	INTSRC_EXINT0,              NULL        },
                    {	INTSRC_EXINT1,              NULL        },
                    {	INTSRC_EXINT2,              NULL        },
                    {	INTSRC_EXINT3,              NULL        },
                    {	INTSRC_EXINT4,              NULL        },
                    {	INTSRC_EXINT5,              NULL        },
                    {	INTSRC_EXINT6,              NULL        },
                    {	INTSRC_EXINT7,              NULL        },
                    {	INTSRC_EXINT8,              NULL        },
                    {	INTSRC_EXINT9,              NULL        },
                    {	INTSRC_EXINT10,             NULL        },
                    {	INTSRC_SDIO,                NULL        },
                    {	INTSRC_SMC1,                NULL        },
                    {	INTSRC_SMC0,                NULL        },                    
                    {	INTSRC_USB,                 NULL        },
                    {	INTSRC_NULL,                NULL        },
                    {	INTSRC_SSI,                 NULL        },
                    {	INTSRC_I2S,                 NULL        },
                    {	INTSRC_LCDC,                NULL        },
                  	{	INTSRC_PWM,                 NULL		},
                    {	INTSRC_UART3,               NULL        },
                    {	INTSRC_UART2,               NULL        },
                    {	INTSRC_UART1,               NULL        },
                    {	INTSRC_UART0,               NULL		},
                    {	INTSRC_TIMER3,              NULL        },
                    {	INTSRC_TIMER2,              NULL        },
					{	INTSRC_TIMER1,              NULL        },
					{	INTSRC_MAC,                 NULL        },
					{	INTSRC_EMI,                 NULL        },
					{	INTSRC_DMAC,                DmaInt      },
					{	INTSRC_RTC,                 NULL        },
			};

extern void int_vector_handler(void)
{
	U32	intnum;	
	U8	i = 0;
		
	intnum = *(RP)(INTC_IFSTAT);
	while(intnum != 1)
	{
		intnum = intnum>>1;
		i++;
	}
	(*vector[i].handler)();

	return;
}