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u can do it by using int0 or int1 and gate in the timer mode of 8051 use that condition
MOV TMOD,#00001001B
MOV TH0,#0
MOV TL0,#0
SETB TR0
JNB P3.2,$
JB P3.2,$
MOV R2,TH0
MOV R3,TL0
MOV A,#0FFH
SUBB A,R3
MOV R4,A
MOV A,#0FFH
SUBB A,R2
MOV R5,A
MOV TMOD,#10H
MOV TH1,R5
MOV TL1,R4...
pulse width measurement
i need assembly code to measure a pulse width of different values and store them in 89c51 RAM locations and then read them later to control servo motor.
i have made a program and giving same delay using timer 1 but output delay is diferent as intput to the interrupt...
frequency display
can anyone explain this program how hex2dec is being done i m not able to figure it out.
;D4 - P1.0
;D5 - P1.1
;D6 - P1.2
;D7 - P1.3
;EN - P1.7
;RW - P1.6
;RS - P1.5
lcd_port equ P1 ;LCD connected to Port3
en equ P1.7 ;Enable connected to P1.7
var1 equ...
I HAVE A PROGRAM FOR ONE BYTE WRITE AND READ FROM 24C08, WHEN I USE IT FOR 2 OR HIGHER BYTES THE LOOP DOES NOT STOP AND KEEP ON INCREASING VALUES CAN ANY ONE FIGURE IT OUT BY SEEING THE CODE
SCL EQU P1.6
SDA EQU P1.7
EE_DATA EQU 30H
EE_ADDR EQU 40H
MAIN:
MOV R2,#3
MOV R0,#06H
MOV R1,#01H...
inverted pendulum
hi i have started a project on self balancing of plate mounted inverted pendulum mean a pendulum would be directly attached with the motor shaft through plate or pulley. we have to use a digital pid controller but i dont know how to design a digital pid although i have a bit...
solutions of power electronics by m.h. rashid
hi everone
can anyone help me by letting me the solution manual for power electronics circuits devices and applications by m h rashid , i desperately need it plzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz
hammadkrm at yahoo dot com thxxxxxxxxxx
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