Michael Rigby-Jones wrote:

> From Forrest W Christian
>> 
>> I'm 99.9% sure I can do bidirectional, half-duplex no-timing-needed,
>> digital-realm communications with 2 open-collector outputs capable of
>> self-read.
> 
> A slightly adpated I2C multi-master system would acheive this I think,
> i.e Master becomes a slave after finishing it's transmission. 

Wouldn't this require that the current slave (receiver) can follow the
current master's (sender's) clock speed? There's the clock extension thing,
but this works only in one clock direction, and need to come before it's
too late.

Gerhard

-- 
http://www.piclist.com PIC/SX FAQ & list archive
View/change your membership options at
http://mailman.mit.edu/mailman/listinfo/piclist