intspassing.c

来自「Terawins的芯片T128点3.5"屏的源程序。」· C语言 代码 · 共 36 行

#include <reg51.h>
#include "Common.h"
#include "Global.h"
#include "ICControl.h"
#include "Initial.h"
#include "TWICreg.h"
#include "Keypad.h"
#include "VideoDetect.h"
code uCHAR aKeyTable[16]={REMOTE_KEY_POWER,REMOTE_KEY_SOURCE,0,REMOTE_KEY_MENU,REMOTE_KEY_NUM100,0,REMOTE_KEY_CH_INC,0,
  REMOTE_KEY_LEFT,0,REMOTE_KEY_RIGHT,REMOTE_KEY_ENTER,0,0,0,0};
void INT0Passing(void) interrupt 0
{
	uCHAR INTRead1=0;
	uCHAR INTRead2=0;
	EX0 = 0;    // Disable Externel Interrup 0	 
	
	INTRead1=IC_ReadByte(TWIC_P0,INTSTS_REG);  
	INTRead2=IC_ReadByte(TWIC_P0,INSTS2_REG);
	IC_WritByte(TWIC_P0,INTSTS_REG,0xFF); 	   //Clear interrupt
	IC_WritByte(TWIC_P0,INSTS2_REG,0x01);	   //Clear interrupt
	//Detect Ir
	if(INTRead1&0x80)	 //INTSTS 
	{
		m_cCurreKey=IC_ReadByte(TWIC_P1,IR_STREAM4);
					
	}						  
	//Detect Keypad	
	if(INTRead2&0x01)	 //INTSTS2					  
	{	
		INTRead2=IC_ReadByte(TWIC_P0,GPIO_OUT_CTRL_REG)&0x0F;		
		m_cCurreKey=aKeyTable[INTRead2];		  					
	} 	  

EX0 = 1;    // Enable Externel Interrup 0	  
}