文件名称:ultra-sonic
- 所属分类：
- 单片机(51,AVR,MSP430等)
- 资源属性：
- [ASM] [源码]
- 上传时间：
- 2012-11-26
- 文件大小：
- 1kb
- 下载次数：
- 0次
- 提 供 者：
- lawr****
- 相关连接：
- 无
- 下载说明：
- 别用迅雷下载，失败请重下，重下不扣分！
介绍说明－－下载内容均来自于网络，请自行研究使用
--- -3.2 TIMER DELAY
#include <sfr51.inc>
--- --- -----MAIN PROGRAM
MAIN:
MOV R6,#1 Ajustment:R6 start at #1
ACALL PWM_SETUP
ACALL PWM
SJMP MAIN
PWM_SETUP: 11.0592M/12/256/240/30 = 2SEC
MOV TMOD,#10H timer1, mode1
MOV TH0,#16 ---------SET DELAY VALUE
MOV TL0,#00 11.0592M/12/256/240/30 = 2SEC
RET
PWM:
SETB TR1
JNB F0,DO_LOW FLAG(F0) TO INDICATE DO_LOW/HIGH
DO_HIGH:
JNB TF1,$ WAIT FOR TF1 SET
DJNZ R6,LEAVE LEAVE FROM SUBROUTINE IF R6 NOT ZERO
SETB P1.0
MOV R6,#24 Ton=6/30=80 --------3.2 TIMER DELAY
#include <sfr51.inc>
-----------------MAIN PROGRAM
MAIN:
MOV R6,#1 Ajustment:R6 start at#1
ACALL PWM_SETUP
ACALL PWM
SJMP MAIN
PWM_SETUP: 11.0592M/12/256/240/30 = 2SEC
MOV TMOD,#10H timer1, mode1
MOV TH0,#16 ---------SET DELAY VALUE
MOV TL0,#00 11.0592M/12/256/240/30 = 2SEC
RET
PWM:
SETB TR1
JNB F0,DO_LOW FLAG(F0) TO INDICATE DO_LOW/HIGH
DO_HIGH:
JNB TF1,$ WAIT FOR TF1 SET
DJNZ R6,LEAVE LEAVE FROM SUBROUTINE IF R6 NOT ZERO
SETB P1.0
MOV R6,#24 Ton=6/30=80
#include <sfr51.inc>
--- --- -----MAIN PROGRAM
MAIN:
MOV R6,#1 Ajustment:R6 start at #1
ACALL PWM_SETUP
ACALL PWM
SJMP MAIN
PWM_SETUP: 11.0592M/12/256/240/30 = 2SEC
MOV TMOD,#10H timer1, mode1
MOV TH0,#16 ---------SET DELAY VALUE
MOV TL0,#00 11.0592M/12/256/240/30 = 2SEC
RET
PWM:
SETB TR1
JNB F0,DO_LOW FLAG(F0) TO INDICATE DO_LOW/HIGH
DO_HIGH:
JNB TF1,$ WAIT FOR TF1 SET
DJNZ R6,LEAVE LEAVE FROM SUBROUTINE IF R6 NOT ZERO
SETB P1.0
MOV R6,#24 Ton=6/30=80 --------3.2 TIMER DELAY
#include <sfr51.inc>
-----------------MAIN PROGRAM
MAIN:
MOV R6,#1 Ajustment:R6 start at#1
ACALL PWM_SETUP
ACALL PWM
SJMP MAIN
PWM_SETUP: 11.0592M/12/256/240/30 = 2SEC
MOV TMOD,#10H timer1, mode1
MOV TH0,#16 ---------SET DELAY VALUE
MOV TL0,#00 11.0592M/12/256/240/30 = 2SEC
RET
PWM:
SETB TR1
JNB F0,DO_LOW FLAG(F0) TO INDICATE DO_LOW/HIGH
DO_HIGH:
JNB TF1,$ WAIT FOR TF1 SET
DJNZ R6,LEAVE LEAVE FROM SUBROUTINE IF R6 NOT ZERO
SETB P1.0
MOV R6,#24 Ton=6/30=80
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ultra sonic.asm