timer.asm

来自「82K96E/82M99E开发的USB键盘接收端DEMO程序源码」· 汇编 代码 · 共 57 行

include		HT82K96e.inc
include		usbrf.inc

;extern		wait_time		:byte
;extern		wait_time_h		:byte
extern		tempkbtime		:byte
extern		tempkbtime_L	:byte
extern		reportkbtime	:byte

extern		bFLAG_HvRpt		:bit
extern		btime_out_KB	:bit

timer_Var		.section  'data' 
isr_acc			db		?
isr_status		db		?



arec_timer		.section  AT 330H 'code'
		
;----------------------------------------------------------------------------------------------
USB_timer_int:
				clr		wdt
				mov		isr_acc,a
				mov		a,status
				mov		isr_status,a

          		SnZ     bFLAG_HvRpt               	;Has configured ?
				jmp		exit_examine_report_time

examine_kb_report_time:
				sz		reportkbtime
				jmp		check_kb_time_out
examine_mouse_report_time:
				jmp		exit_examine_report_time

check_kb_time_out:
				inc		tempkbtime
				mov		a,tempkbtime
				xor		a,reportkbtime
				sz		z
				set		btime_out_KB
				jmp		examine_mouse_report_time

exit_examine_report_time:

out_of_rec_timer:
				mov		a,isr_status
				mov		status,a
				mov		a,isr_acc
				reti			


public		USB_timer_int

end