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Sat Jun 6 10:03:18 CEST 2009

Multiple PICs

Plan: I2C support for monitor.  Probably I2C is best for debugging
since it's a bus, while SPI is a pipe.

Goals:

  * Use the eusart shift register on the PIC18 for video generation.
    This requires communication over a different channel.

  * Multiple target debugging for testing other network code.

The simplest way to get multiple targets connected is probably
daisy-chaining them.  This would require protocol extensions to
include addressing.  The simplest way is to use decrement addressing,
and send replies to #xFF.

Next: implement this.  Ok that wasn't too hard.

Now, can I make a cable / bus that attaches to the standard serial
port connector?




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