> I need to sent 5 Mbps straight from a PIC. The SSP module should be able
to
> do just that provided I can send continuous. Since SPI is a synchronous
> interface there is no start/stop bit. How can I make sure the data is
> received correctly when SCK never stops, and bits are shifted without
> pause? I read several Microchip docs but they did not enlighten me so
> far...

Yes, in theory SPI is just a continuous bit stream.  That why in practise
the master usually controls chip select lines to each of the slaves.  The
slaves ignore bits while chip select is deasserted, and synchronize to the
start of bytes on the leading edge of chip select.  I think you will get
yourself into big trouble if you don't have some way of initially and
periodically synchronizing the receivers to start of bytes.


********************************************************************
Olin Lathrop, embedded systems consultant in Littleton Massachusetts
(978) 742-9014, olin@embedinc.com, http://www.embedinc.com

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