This never got a peep on another forum, so I thought I would ask it here.. I have since moved on but the answer wil still be nice to know.
Seems like this should be easy, but having read all the info I can find, I still don't get how to make the hardware connections. I want to use the PSP to connect to a computer running in EPP mode. Here are the EPP signals:
D0-D7 =>data lines
read/write => 1 line to indicate read or write Input to PIC
Data strobe => indicates to PIC data is ready on the data bus
Address strobe => indicates to PIC address is ready on the data bus
Wait <= indicates to EPP port the PIC is busy or not
This seems like it should be so simple and probably is, but as I said - I must be missing something. Would someone tell me What pins to use for the control lines? I can sort out the reg's once I get this part done.
My main problem is this: I see seperate read and write lines in the PIC, but parallel port just uses 1. I also don't see the signal I should use for the wait. I thought about just using an I/O pin for this and controlling it through code, but this seems wrong plus I still have the read/write to deal with.