post_initostimer.s

ARM嵌入式系统关于IRQ中断处理基于c语言的实验代码

	IMPORT	osTimer_OSMR0
	IMPORT	osTimer_OSCR
	IMPORT	osTimer_OIER	
	IMPORT	osScanInterval

	EXPORT	post_initOsTimer

	AREA post_initOsTimer ,CODE ,READONLY

	ldr r10,=osTimer_OSMR0
	ldr r4,=osScanInterval
	ldr r11,=osTimer_OSCR
	ldr r5,[r11]
	add r4,r4,r5
	str r4,[r10]

	ldr r11,=osTimer_OIER
	mov r4,#0x1
	str r4,[r11]

	mov pc,r14
	END