Russell McMahon wrote:

> > This is an IR link @ 2400 bps; will try the magic bytes if I need to
> "drop"
> > more than 16 bytes or so with the frame error sync.
>
> The most magic of all magic bytes is no byte at all. If you have the ability
> to insert such bytes into the data stream then you presumably also have the
> ability to pause transmission occasionally. If you pause for 1 word time (10
> bits) (so that the circuit is at logical 1 / mark) then any properly behaved
> UART that is monitoring the line will automatically drop into sync when the
> character stream is restarted. This is the whole point of async
> communications. (Having a longer stop "bit" will also increase
> synchronisation capability, but not as well as just stopping sending
> occasionally).
>
>
>
>
>         Russell McMahon

Adding parity would also help in this respect

Regards
Sergio Masci

http://www.xcprod.com/titan/XCSB - optimising structured PIC BASIC compiler

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