Hi Chuck,

If you have not already, download the bible:

MPASM USER'S GUIDE with MPLINK and MPLIB -- I believe the latest rev is
DS33014G. It's a valuable reference -- definitely worth printing it out, or
asking for a hardcopy from Microchip.

However, using bitwise AND *probably* won't solve your problem either if you
make the modification with the code you posted:

        MOVF   ( HV_SetPH & DA_MASK ), W
        MOVWF  SSPBUF

I'm pretty sure you don't want the 'MOVF' above, am I right?

Do you see the difference between the code above and the code below?:

        MOVLW  ( HV_SetPH & DA_MASK )
        MOVWF  SSPBUF

However, I'm assuming both 'HV_SetPH' and 'DA_MASK' are pre-defined
constants, and this might be a bad assumption.

If 'HV_SetPH' represents a RAM register and 'DA_MASK' is a pre-defined
constant, then you probably want something like:

        MOVLW    DA_MASK
        ANDWF    HV_SetPH, W
        MOVWF    SSPBUF

I could be way off base with my post here since I don't have enough
information as to what 'HV_SetPH' and 'DA_MASK' represent.

Could you post the definitions of 'HV_SetPH' and 'DA_MASK'?]

In your project, do they represent just constants, intended RAM locations,
or something else?

Thanks Chuck.

Regards,

Ken Pergola








-----Original Message-----
From: pic microcontroller discussion list
[mailto:PICLIST@MITVMA.MIT.EDU]On Behalf Of Roberts II, Charles K.
Sent: Wednesday, October 15, 2003 1:18 PM
To: PICLIST@MITVMA.MIT.EDU
Subject: Re: [PIC:] Another question, I2C woes......


Ken Pergola

>Is this what you intended?

>This is why I'm saying this looks odd to me. Do you see my point? I
hope
>this makes sense.


I see exactly what you are saying. I thought that the && would bit wise
AND. I guess I will have to used the MASM AND command. Thanks for
catching that.

Chuck

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