www.pudn.com > SpeechClock11654.rar > FIQ.asm

//*********************************************************// 
//函数：FIQ() 
//语法：void  FIQ(void) 
//描述：快速请求中断； 
//		入口地址：_FIQ 
//		功能：调用语音解码并播放API 
//参数：无 
//返回：无 
//*********************************************************// 
.INCLUDE a2000.inc; 
.INCLUDE hardware.inc 
 
.PUBLIC _FIQ,_IRQ3, _IRQ5, _IRQ6 
 
.EXTERNAL	_TimeCount;        // 触发计时 
.EXTERNAL   Per500msSet        //2Hz中断，每次500ms时钟 
.EXTERNAL   _TimeChangeCount;  //计时 
 
 
.TEXT 
_FIQ: 
	push r1,r5 to [sp] 
	r1 = 0x0800 
	r1&=[P_INT_Ctrl]  
	jnz FIQ_is_TimB 
	r1 = 0x2000 
	r1&=[P_INT_Ctrl]  
	jnz FIQ_is_TimA 
	r1 = 0x8000 
	r1&=[P_INT_Ctrl]  
	jnz FIQ_is_PWM 
 
FIQ_is_PWM: 
    [P_INT_Clear] = r1 
	pop	r1,r5 from [sp]; 
	reti; 
 
FIQ_is_TimA: 
    call F_FIQ_Service_SACM_A2000; 
	r1 = 0x2000 
	[P_INT_Clear] = r1 
	pop	r1,r5 from [sp]; 
	reti; 
 
FIQ_is_TimB:    
    r1=0x0800;   
    [P_INT_Clear] = r1;            
    pop r1,r5 from [sp]; 
    reti;              
 
 
_IRQ3:  
	push r1,r5 to [sp] 
	r1 = 0x0380;           //按键唤醒 
    [P_INT_Clear] = r1; 
	pop	r1,r5 from [sp]; 
	reti; 
	 
 
//--------2Hz and 4Hz------// 
_IRQ5:  
	push r1,r5 to [sp] 
	r1 = 0x0008; 
	test r1,[P_INT_Ctrl]; 
	jnz	L_IRQ5_4Hz; 
 
L_IRQ5_2Hz: 
	r1 = 0xFFFF;          //万年历时间/////////////////// 
    [Per500msSet] = r1; 
    r1 = [_TimeCount];    //计时 
	r1 += 1; 
	[_TimeCount] = r1; 
    r1=0x0004 
    [P_INT_Clear] = r1; 
	pop	r1,r5 from [sp]; 
	reti; 
 
L_IRQ5_4Hz: 
    [P_INT_Clear] = r1; 
	pop	r1,r5 from [sp]; 
	reti; 
 
//-------- 256Hz RTC --------// 
_IRQ6:  
    push r1,r5 to [sp] 
    r1=0x0001 
    test r1,[P_INT_Ctrl] 
    jnz IRQ6_TMB2 
 IRQ6_TMB1: 
    r1=0x0002 
    [P_INT_Clear]=r1 
	pop	r1,r5 from [sp]; 
	reti;  
 IRQ6_TMB2: 
 
    r1=[_TimeChangeCount] 
    r1+=1 
    [_TimeChangeCount]=r1 
    r1=0x0001    
    [P_INT_Clear]=r1 
	pop	r1,r5 from [sp]; 
	reti; 
	     
.END