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| Micro Controllers Discuss all aspects of micro controllers - building them, coding them, etc. All controllers are welcome - PIC, BASIC, Z8 Encore!, etc. |
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4th November 2009, 01:03 PM
| #1 | |
 loop problem.
Hi, Im tryning to get a port on my PIC16F628A to go logic high a specific number of times. I am currently using the BSF and the BCF commands, but the code is messy and takes to much space. Is there a way to loop a specific number of times, so i dont have to repeat the BSF and BCF so many times? Eksample "in my mind" Code: Start bsf portb,0 call Delay bcf portb,0 goto start (3 times then continue to the next line) next line .. .. .. .. Quote:
Last edited by Roger_NO; 4th November 2009 at 01:05 PM. | ||
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4th November 2009, 01:09 PM
| #2 |
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Of course it is, that's what it's there for - check my tutorials where it's used a LOT - one example, the RS232 receive and transmit routines.
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5th November 2009, 07:09 AM
| #3 |
| ok
ok. Will this work? Code:
cblock 0x20
d1
d2
d3
count1
endc
;Port define
banksel TRISA
movlw 0xff
movwf TRISA
movlw 0x00
movwf TRISB
banksel PORTA
;init
movlw d'3'
movwf count1
clrf PORTA
clrf PORTB
Start
btfss PORTA,0
goto Start
S1
bsf PORTB,0
call delay1
bcf PORTB,0
call delay1
decfsz count1
goto S1
Next line...
;Sub routines
delay1
movlw 0x3F
movwf d1
movlw 0x9D
movwf d2
Delay1_0
decfsz d1, f
goto $+2
decfsz d2, f
goto Delay1_0
goto $+1
end
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| Tags |
| loop, problem |
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