> Is there any software for Windows PC that will let your
> serial or parallel port emulate an SPI port?

SPI is bidirectional serial data with clock.  I don't see how a standard
serial port can emulate that.  A parallel port could, in theory.

Wouldn't it be easier to hook up a PIC to a MAX232 to receive commands
from the serial port, then talk SPI on the other side?  Sounds easy and
cheap, and you could wire the whole thing in a short time on a breadboard.
You could start with the project at http://www.embedinc.com/pic/hos.htm.
All you would have to add is the code to processes specific commands from
the host (the UART handler and command dispatch code is already there),
and the code to drive the SPI port.


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