- Category:
- SCM
- Tags:
-
[ASM]
[源码]
- File Size:
- 1kb
- Update:
- 2012-11-26
- Downloads:
- 0 Times
- Uploaded by:
- lncknight
Description: -------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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