At 08:23 AM 23/04/96 +0200, you wrote:
>Hello Ricardo,
>
>I'm searching to for such a protocol too. Ofcourse it's not very difficult
>to make one my own, but i think it's far better to use a well known
>standard. But I haven't found it yet. I'm still looking in the 'home
>automation' world, were there are standards as X10 and CE-bus. But they tell
>you very little about the protocol itself. The 9-bit protocol i've seen too.
>It sounds smart only the thing is that i want to be able to control my slave
>devices (mostly ofcourse PIC-devices) with a visual basic program on a PC.
>As far a i know 9-bit communications not supported.
>What I already have used as a protocol is communcating with byte-packages like:

I have a similar problem(PC controlling several PICs) and I am using a similar
approach(details at http://www.magna.com.au/~rtasis/comms.htm). One recent
web reference on CAN was quite detailed and looked very promising. But it
is not serial based but works better bit banged. It is good if all you want
is inter-PIC comms and has multi-master capability. But if you want to connect
to a serial port I think there aren't any standard solutions. I am using a
similar packet structure and using a polled approach. This means a desperate
device has to wait till the host gets around to talking to it. I would be
interested to hear a multi-master approach using a serial comms port too.

Regards

Prashant
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|                |    Prashant Bhandary
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