initial.asm

来自「5402DSP程序设计语言」· 汇编 代码 · 共 27 行

	.mmregs
	.global _initial
_initial:
	stm 	300h,ar1  ;initial 300h data address
	st  	#00h,*ar1
	stm 	302h,ar1  ;initial 302h data address
	st  	#00h,*ar1
	
;	stm		200h,ar1
;	st		#5555h,*ar1
;	stm		201h,ar1
;	st		#0aaaah,*ar1
;   stm		202h,ar1
;	st		#400h,*ar1

	ssbx	1,11     ;set ST1.INTM=1,stop all interrrupt
	stm 	0ffffh,ifr;clear all interrupt indicate
	stm 	00h,imr ;set imr=0,stop all interrrupt

	stm 	410h,tcr;stop timer 	
	stm 	4e1fh,prd;set prd=4e1fh
	stm 	420h,tcr;start timer
	
	stm 	08h,imr ;allow timer interrupt
	rsbx 	1,11   ;set ST1.INTM=0,start all interrrupt
	ret