Hello,

I am working on a project that needs to have inter-PIC communication, so I
plan to use SPI to talk between them. The "master" PIC is a 16F873, so I am
going to use the MSSP on it in SPI master mode to talk to the other PIC (I
can't use the USART because it is being used for a homebrew RF data link). I
plan to have the slave PIC be a 16F627 because of the smaller size and lower
cost. This will be used to get data from a Microsoft Sidewinder digital
joystick (when I figure out the protocol) and process it to send to the
master PIC. The problem with this is that the 16F62x's do not have SSP
modules, only USARTs. I have been looking at the data sheets and I think it
would be possible to use the synchronous slave function of the USART to talk
to the SPI of the master PIC. Has anyone tried this? If I set up the modules
right (so they have the same clocking, idle levels, etc) will they work
fine?

Also, has anyone interfaced to a Microsoft Sidewinder Force Feedback
joystick with a PIC? (I don't need to use the force-feedback features,
although it might be neat to add in the future.) I think that the Precision
Pro uses the same format. I found a link on epanorama.net about the
protocol, but I need to make an extension cable that I can monitor the
signals on, because it isn't behaving exactly the same as I would have
thought it should. Once I get it figured out, I think it would make a really
neat controller for robotics and other types of projects.

Thanks in advance,
Andy Meng
N8MX



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