isr.asm

GPS开发

//isr.asm
.TEXT

.include SPCE061A.inc
.external	F_FIQ_Service_SACM_S480
.external	_Show_AD
.external   _Key_ServiceLoop

.public _BREAK;

.public _FIQ;
	
.public _IRQ0;

.public _IRQ1;

.public _IRQ2;

.public _IRQ3;

.public _IRQ4;

.public _IRQ5;

.public _IRQ6;





_BREAK:
	//add your code here

	reti;

_FIQ:
	push r1,r5 to [sp]
	r1 = [P_INT_Ctrl]				// 读取中断标志
	test r1,C_FIQ_TMA				// 是否为TimerA的FIQ中断？
	jnz ?L_FIQ_TMA					// 是则跳转
?L_FIQ_PWM:							// Fosc/1024的FIQ中断
	[P_INT_Clear] = r1
	pop r1,r5 from [sp]
	reti
?L_FIQ_TMA:							// TimerA的FIQ中断
	r1 = 1
	[P_Watchdog_Clear] = r1

	call F_FIQ_Service_SACM_S480	// 调用音频中断服务程序
	r1 = C_FIQ_TMA
	[P_INT_Clear] = r1				// 清中断标志位
	pop r1,r5 from [sp]
	reti


_IRQ0:
	//add your code here

	reti;


_IRQ1:


	reti


_IRQ2:
	//add your code here

	reti;


_IRQ3:
	//add your code here

	reti;


_IRQ4:
	//add your code here

	reti;


_IRQ5:
	//add your code here
	push r1,r5 to [sp]
	
	r1 = [P_INT_Ctrl]				// 读取中断标志
	test r1,C_IRQ5_4Hz				// 是否为IRQ5的4HZ中断？
	jnz ?L_IRQ5_4Hz					// 是则跳转
	test r1,C_IRQ5_2Hz				// 是否为IRQ5的4HZ中断？
	jnz ?L_IRQ5_2Hz					// 是则跳转

?L_IRQ5_2Hz:						
	r1 = C_IRQ5_2Hz
	[P_INT_Clear] = r1
	call _Show_AD					// 循环播放信息
	pop r1,r5 from [sp]
	reti

?L_IRQ5_4Hz:						
	r1 = C_IRQ5_4Hz
	[P_INT_Clear] = r1				// 清中断标志位
	call _Key_ServiceLoop			// 调用键盘扫描函数	
			
	pop r1,r5 from [sp]
	reti

_IRQ6:
	//add your code here

	reti;