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program code


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priya123

Wed Apr 16 2008, 05:07PM

Registered Member #7113

Joined: Wed Apr 09 2008, 02:39AM

Posts: 48
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This is the code which i had written for my project,please correct it so that it works properly,please help,its too urgent.actually i want to interface ADC and microcontroller and display data through the ports of microcontroller.Suppose providing a input voltage of 2v microcontroller will display say,033h through its ports.Actually upon providing a voltage of 2v ADC is reading 033h and this data is fed to microcontroller and displayed.
setbp2.5
setb p2.6
intr bit p2.7
setb intr
adc_port equ p1
adc_val equ 30h
back: clr wr
setb wr
acall conv
read: clr rd
mov a,adc_port
mov adc_val,a
setb rd
cjne r3,#00h,check1
acall data_display1
check1: cjne r3,#01h,check2
acall data_display2
check2: cjne r3,#02h,check3
acall data_display3
check3: cjne r3,#03h,check4
acall data_display4
check4: cjne r3,#04h,check5
acall data_display5
check5: cjne r3,#05h,over
over: acall data_display6
smp back
data_display1: mov a,#0h
conversion: mov b,#10h
div ab
mov r7,b
mov b,#10h
div ab
mov r6,b
mov r5,a
mov p3,r7
acall delay
mov p3,r6
acall delay
mov p1,r5
acall delay
data_display2: mov a,#033h
mov b,#10h
div ab
mov r7,b
mov b,#10h
div ab
mov r6,b
mov r5,a
mov p3,r7
acall delay
mov p3,r6
acall delay
mov p1,r5
acall delay
data_display3: mov a,#067h
mov b,#10h
div ab
mov r7,b
mov b,#10
div ab
mov r6,b
mov r5,a
mov p3,r7
acall delay
mov p3,r6
acall delay
mov p1,r5
acall delay
data_display4: mov a,#097h
mov b,#10h
div ab
mov r7,b
mov b,#10h
div ab
mov r6,b
mov r5,a
mov p3,r7
acall delay
mov p3,r6
acall delay
mov p1,r5
acall delay
data_display5: mov a,#099h
mov b,#10h
div ab
mov r7,b
mov b,#10h
div ab
mov r6,b
mov r5,a
mov p3,r7
acall delay
mov p3,r6
acall delay
mov p1,r5
acall delay
data_display6: mov a,#0ffh
mov b,#10h
div ab
mov r7,b
mov b,#10h
div ab
mov r6,b
mov r5,a
mov p3,r7
acall delay
mov p3,r6
acall delay
mov p1,r5
acall delay
delay: mov r4,#200
here: djnz r4,here
ret
end

[ Edited Wed Apr 16 2008, 06:34PM ]