interrupt_sw.c

来自「瑞萨(Renesas)M16C系列芯片的函数库」· C语言 代码 · 共 70 行

#include "interrupt_sw.h"	// interrupt switch utility header file
#include "sfr62p.h"	// SFR definition of M16C/62P

#define TRUE 1
#define FALSE 0

/*""FUNC COMMENT""*************************************************************
* ID         		: ---
* Function name     : void InitInterruptSW(void)
* Function     		: initialize interrupt switch 
* Paramenter   		: none
* Return 	 		: none
* Function used		: none
* Notice	   		: none
* History    		: ---
*""FUNC COMMENT END""*********************************************************/
void InitInterruptSW(void)
{
	int0ic = 0x1;	//set INT0 IPL as 1
	int1ic = 0x1;	//set INT1 IPL as 1
}

/*""FUNC COMMENT""*************************************************************
* ID         		: ---
* Function name     : int rm_sw9chat(void)
* Function     		: cancel chattering of switch INT0 
* Paramenter   		: none
* Return 	 		: int : the state of switch INT0
* Function used		: none
* Notice	   		: none
* History    		: ---
*""FUNC COMMENT END""*********************************************************/
int rm_sw9chat(void)
{
	int i;

	for(i = 0; i < 2000; i++);	//software wait
	ir_int0ic = 0 ;				//clear interrupt request bit
	
	if(p8_2 == 0){				//check INT0 switch state
		return TRUE;			// INT0 = ON
	}else{
		return FALSE;			//INT0 = OFF
	}
}

/*""FUNC COMMENT""*************************************************************
* ID         		: ---
* Function name     : int rm_sw10chat(void)
* Function     		: cancel chattering of switch INT1 
* Paramenter   		: none
* Return 	 		: int : the state of switch INT1
* Function used		: none
* Notice	   		: none
* History    		: ---
*""FUNC COMMENT END""*********************************************************/
int rm_sw10chat( void )
{
	int i;

	for(i = 0; i < 2000; i++);	//software wait
	ir_int1ic = 0 ;				//clear interrupt request bit
	
	if(p8_3 == 0){				//check INT1 switch state
		return TRUE;			//INT1 = ON
	}else{
		return FALSE;			//INT1 = OFF
	}
}