>
> What is required
>
> A mechanism to signal the UDP state machine that something is to be sent
> A mechanism to signal the caller that it is ok to send
> A mechanism to  pass the message to send.
> A mechanism to ensure the state machine is called periodically.
>

What I tend to do is have a state machine for each task and repeatedly
loop through the various tasks. Each task has an input fifo. Tasks just
send messages to other tasks by putting them in the fifo for the
destination. Messages need to be completely sent by each task so they
don't get intermingled. So, could something like this work?

Good luck!

Harold


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