isr.asm

单片机红外测温仪的源代码

//==========================================================
//文件名称:isr.asm
//功能描述:在FIQ中断里调用语音播放函数播放语音
//         在IRQ4_4KHz里调用数码管显示驱动函数
//维护记录 2005.12.2 by hongyan.Feng
//==========================================================
.INCLUDE SPCE061A.inc
.INCLUDE s480.inc
.EXTERNAL F_DIG_Drive
.text
.PUBLIC _FIQ
_FIQ:
	push r1,r5 to [sp]
	r1 = C_FIQ_TMA
	test r1,[P_INT_Ctrl]
	jnz L_FIQ_TimerA
	r1 = C_FIQ_TMB
	test r1,[P_INT_Ctrl]
	jnz L_FIQ_TimerB
L_FIQ_PWM:
	r1 = C_FIQ_PWM
	[P_INT_Clear] = r1
	pop r1,r5 from [sp]
	reti
L_FIQ_TimerA:
	[P_INT_Clear] = r1
	call F_FIQ_Service_SACM_S480
	pop r1,r5 from [sp]
	reti
L_FIQ_TimerB:
	[P_INT_Clear] = r1
	pop r1,r5 from [sp]
	reti
	
.PUBLIC _IRQ0
_IRQ0:	
	reti
.PUBLIC _IRQ1
_IRQ1:	
	reti
.PUBLIC _IRQ2
_IRQ2:	
	reti	
.PUBLIC _IRQ3
_IRQ3:	
	reti
		  
.PUBLIC _IRQ4
_IRQ4:
	push r1,r5 to[sp]
	r1 = [P_INT_Ctrl]
	test r1,0x0020
	jnz ?IRQ4_2KHz
	test r1,0x0040
	jnz ?IRQ4_4KHz
	r1 = 0x0010
	[P_INT_Clear] = r1
	jmp ?exit
?IRQ4_4KHz:
	call F_DIG_Drive
	r1 = 0x0040
	[P_INT_Clear] = r1
	jmp ?exit
?IRQ4_2KHz:
	r1 = 0x0020
	[P_INT_Clear] = r1
?exit:
	pop r1,r5 from[sp]
	reti
.PUBLIC _IRQ5
_IRQ5:	
	reti
.PUBLIC _IRQ6
_IRQ6:	
	reti
.PUBLIC _IRQ7
_IRQ7:	
	reti
.PUBLIC _BREAK
_BREAK:	
	reti

.END