On Sat, 16 Jan 1999 11:46:49 -0500 Andy Kunz writes: >As much as I might dislike the idea (bad memories ), I'm involved >in a >project which requires that a 40-pin PIC be communicating >bi-directionally >with a PC on the ISA bus. > >If anybody has done this _SUCCESSFULLY_ I'd appreciate hearing from >you for >some pointers. I received some code fragments a while back from >somebody, >but I can't find them and I forget who it was. > I have successfully used PSP, though I used it to talk with a printer port (PSP receiving 8 bits at a time from the printer port, then using nibble mode to get stuff back to the PC). I can send you a bit of PSP code on Monday, if you wish. Something tricky on the ISA bus... Are you putting the whole chip at one ISA address, since the PSP only captures 8 bits? I've tried to think of ways around that, providing a few "register select" lines that can be tied to the ISA bus, but haven't figured out how to do that. Harold ___________________________________________________________________ You don't need to buy Internet access to use free Internet e-mail. Get completely free e-mail from Juno at http://www.juno.com/getjuno.html or call Juno at (800) 654-JUNO [654-5866]