Turn off the comparators as there are inputs pin to these also on PORTB.
Add the 2 lines.....

movlw	0x07
movwf	CMCON

to your source code.  That should make it work.

Regards,

Jim

-----Original Message-----
From: piclist-bounces@mit.edu [mailto:piclist-bounces@mit.edu] On Behalf Of
jana1972@centrum.cz
Sent: Saturday, November 05, 2011 11:02 AM
To: piclist@mit.edu
Subject: [PIC] Is this correct code?

I learn  programming in assembly language.

Can anyone let me know if the following program will open RA2 port as outpu=
t
and there will=20
be voltage on that port RA2?
Thanks

 #include "P16F628A.INC"  ; Include header file=20
 __CONFIG  _INTOSC_OSC_NOCLKOUT

		org 0
		bsf STATUS,RP0		;bank1
		BCF TRISA,2
		bcf STATUS,RP0		;bank0
		BSF PORTA,2
		END

I expect _INTOSC_OSC_NOCLKOUT will cause PIC16F628A to use internal
oscilator, so=20
that no external crystal is not needed
Thanks
L.

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