pic16f628a issue

[Demon]

Look at Archangel's code here:
http://www.picbasic.co.uk/forum/show...hlight=16f628a

He has these also (for 16F628 - not sure if it applies to you):

T1CON = %00000011
OPTION_REG = %01010111

What if you disable BODEN and PWRTE?

What about your voltage, it is at 5V right?

I don't use the low voltage 16F628A, I used the regular 16F628.

Robert

P.S.: To get your code to come out right (missing %), hover your mouse over the A icon at far left when you post, you want to be in SOURCE mode, not WYSIWYG.


EDIT: What about the resistor on MCLR?
http://www.picbasic.co.uk/forum/showthread.php?t=16188
His code works for 16F628A and internal oscillator.
Note he is using PM instead of MPASM, so his CONFIG syntax is a bit different.
He used CLKOUT instead of NOCLKOUT, not sure what difference that makes.

Can you post a drawing of your circuit, a JPG from Paintbrush would be fine.

[Bigandrewgold]

Look at Archangel's code here:
http://www.picbasic.co.uk/forum/show...hlight=16f628a

He has these also (for 16F628 - not sure if it applies to you):

T1CON = %00000011
OPTION_REG = %01010111

What if you disable BODEN and PWRTE?

What about your voltage, it is at 5V right?

I don't use the low voltage 16F628A, I used the regular 16F628.

Robert

P.S.: To get your code to come out right (missing %), hover your mouse over the A icon at far left when you post, you want to be in SOURCE mode, not WYSIWYG.


EDIT: What about the resistor on MCLR?
http://www.picbasic.co.uk/forum/showthread.php?t=16188
His code works for 16F628A and internal oscillator.
Note he is using PM instead of MPASM, so his CONFIG syntax is a bit different.
He used CLKOUT instead of NOCLKOUT, not sure what difference that makes.

Can you post a drawing of your circuit, a JPG from Paintbrush would be fine.

Got it working, I added some code from that thread and disabled boden and pwrte, I dont know what exactly did it but it works. And incase you were wondering, it is powered by a 3v source and I do not have a resistor anywhere/

But if anyone in the future has this problem has this problem stumbles upon this thread, here is my code that works

@ __config _INTRC_OSC_NOCLKOUT & _WDT_ON & _PWRTE_OFF & _MCLRE_OFF & _BODEN_OFF & _LVP_OFF

Define OSC 4


LED4 VAR PortA.1
CMCON = 7 
VRCON = 0 
PortA=0
PortB = %00000000 
T1CON = %00000011
TRISA = 0 
TRISB = %00000000 








STARTMAIN:




LED4=1


PAUSE 250


LED4=0


Pause 250


GOTO STARTMAIN


END

[mister_e]

The Brown Out detect fuse solved our problem, now look at the datasheet and see why it works...