gnupic@linuxhacker.org

Subject: Re: pic16f628 vs. gpsim
From: Jan Reucker
Date: Tue, 12 Aug 2003 17:16:43 +0200
Am Mon, 11 Aug 2003 16:04:46 +0200 schrieb Leva <leva@interware.hu>:

> I have a "movlw 0x07; movwf CMCON" executed before the dance begins! :-) Also
> have disconnected the voltage references by a "clrf VRCON".

Should work. This is how I do it in the project I mentioned:

	; disable comparator module
	MOVLW	0x07
	MOVWF	CMCON

	; set in/out for porta pins
	MOVLW	TRISA				; get adress for porta control reg
	MOVWF	FSR				; setup fsr
	MOVLW	b'00000000'	; all outputs
	MOVWF	INDF				; and set it
			
	; setup PORTB
	; set in/out for portb pins
	MOVLW	TRISB			; get adress for portb control reg
	MOVWF	FSR			; setup fsr
	MOVLW	b'00100111'		; all outputs except RB0 (SCK), RB1 (RXD),
					; RB2 (TXD) and RB5 (SDA)
	MOVWF	INDF			; and set it

I haven't tried to simulate this with gpsim yet because I ran into the
interrupt problem that gpsim seems to have with the 16F628. But the code above
works with the MPLAB-simulator and also works on the actual target hardware.

Regards,
Jan

-- 
Dipl.-Ing. Jan Reucker   email:   jan@reucker-online.de
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