>-----Original Message-----
>From: pic microcontroller discussion list
>[mailto:PICLIST@MITVMA.MIT.EDU] On Behalf Of Howard Winter
>Sent: 23 August 2004 15:00
>To: PICLIST@MITVMA.MIT.EDU
>Subject: Re: [PIC]: PIC Network Strange Behaviour
>
>You can't share a serial connection with a MAX232 - it's
>expecting to drive the line and not be overriden by something
>else (or to put it another way, RS232 is a point-to-point
>protocol).

You can use RS232 in a multidrop configuration by a diodes in the TX line of
every slave to prevent them loading each other.  It's a bit of a bodge, and
RS485 is certainly far superior.

Mike

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