You have not added Cmcon=7. Put it at the start of the program
You have not added Cmcon=7. Put it at the start of the program
grahamg Yes I added cmcon = 7
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@ device PIC16F628A, HS_OSC, WDT_OFF, PWRT_ON, PROTECT_OFF
TrisA = %00000000
PortA = %00000000
TrisB = %00000001
PortB = %00000000
cmcon = 7
Digit Var Byte
Time Var Word
Tcon Con 245
Time = Tcon
Imp Var Word
Imp = 0
RPM Var Word
RPM = 0
OPTION_REG = %10000011
TMR0=5
INTCON = %10110000
Pause 1000
EEPROM 80,[83,46,84,32,69,108,101,99,116,114,111,110,105,99,1 15]
' ------------------------- [ ---------- ] -------------------------
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Last edited by dovegroup; - 27th June 2012 at 16:53.
RA4 is an open collector pin so it will not turn from zero to 5 volts as all the digital pins.
If all you need is to turn your led on & off, then connect your 330 ohms resistor to 5 volts and RA4 pin to junction from led and 330 ohms resistor.
Remember then when pin is on your led will be off.
Cheers
Al.
Last edited by aratti; - 27th June 2012 at 17:06.
All progress began with an idea
Friend aratti yes you have absolute right
Now works also the PortA.4 yessssssssssssssssssss
Thank you very much
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Last edited by dovegroup; - 27th June 2012 at 18:43.
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