Tony Nixon wrote:

I forgot to mention that this will only work for 1 device on the bus at
a time. There is a much more complicated procedure to use if multiple
devices are on the bus and need identification, but I haven't used that
method yet.


> This is in assembler, but perhaps you can port it to C without much
> bother.
>
> Data in buffer after execution = 8 bytes
>
> Family Code - 1 byte
> ID Number   - 6 bytes
> CRC         - 1 Byte
>
>         movlw Buffer            ; set buffer pointer
>         movwf FSR
>         call INITDS             ; start new transaction
>         Send_Out Read_ROM       ; read ROM command
> GIDLoop call IN_BYTE            ; read bytes
>         movwf INDF
>         incf FSR
>         movlw Buffer + d'8'
>         xorwf FSR,W
>         btfss STATUS,Z
>         goto GIDLoop
>         return

--
Best regards

Tony

mICros
http://www.bubblesoftonline.com
mailto:sales@bubblesoftonline.com

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