int_vec_handler.c

东南大学开发ARM7芯片UART模块测试代码

  /**********************************************************************************
 *	Copyright (c) 2008 by ASIC.
 *	PROPRIETARY RIGHTS of ASIC 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           2008.3.12       QI Haochun 		      	
 *************************************************************************************
*/
#include <stdio.h>
#include "intc.h"
#include "sep4020.h"
#include "ub4020evb.h"
extern void Uart0IntHandle(void);
extern void Uart1IntHandle(void);
extern void Uart2IntHandle(void);
extern void Uart3IntHandle(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,           Uart3IntHandle },
  {  INTSRC_UART2,           Uart2IntHandle },
  {  INTSRC_UART1,           Uart1IntHandle },
  {  INTSRC_UART0,           Uart0IntHandle},
  {  INTSRC_TIMER3,          NULL },
  {  INTSRC_TIMER2,          NULL },
  {  INTSRC_TIMER1,          NULL },
  {  INTSRC_MAC,             NULL },
  {  INTSRC_EMI,             NULL },
  {  INTSRC_DMAC,            NULL },
  {  INTSRC_RTC,             NULL },
};

extern void IntVectorHandler(void)

{
  U32 intnum;
  U8 i = 0;

  intnum = *(RP)(INTC_IFSR);
  while (intnum != 1)
  
  {
    intnum = intnum >> 1;
    i++;
  }
  
  (*vector[i].handler)();

  return ;
}