sutherla@qtp.ufl.edu (scott sutherland) (10/26/89)
All this talk about the LUCAS board recently has renewed my interest in this project. Although I am not an electonics expert, the UF chemistry department has an electronics shop, so I am now seriously considering this project for my A2000. ***** PLEASE NOTE THAT I DO REALIZE THAT THE LUCAS PROJECT ****** ***** WAS DISCUSSED IN DETAIL, INCLUDING PLANS AND CORR- ****** ***** ECTIONS, SEVERAL MONTHS AGO IN EXCRUTIATING DETAIL. ****** ***** AT THAT TIME I DID NOT THINK I WOULD BE ABLE TO DO ****** ***** THIS PROJECT, SO I READ THE ARTICLES AND MOVED ON. ****** ***** IF ANYONE HAS SAVED THE MOST PERTINENT ARTICLES FROM ****** ***** THAT TIME, IF YOU COULD EMAIL THEM TO ME, I WOULD BE ****** ***** ECSTATIC. I DO NOT WANT TO START ANOTHER HEATED ****** ***** DISCUSSION ON LUCAS/FRANCES, SO PLEASE EMAIL ALL ****** ***** RESPONSES TO ME AT sutherla@qtp.ufl.edu ****** BY THE WAY, HAS ANYONE, DAVE HAYNIE INCLUDED, DONE COMPARISONS OF THE RONIN, CSA, COMMODORE, AND LUCAS '020 BOARDS FOR PERFORMANCE? I HAVE SEEN AN ARTICLE COMPARING ALL BUT THE LUCAS. IT EVEN LOOKED AT THE MIDGET RACER! HOW DOES THE LUCAS COMPARE TO THESE? My questions are: Q1) Is there a LUCAS configuration for the Amy 2000? All the talk on the net recently has been focused on the A1000. Q2) Where can I get the details of how to construct the board? I need detailed schematics that even an electronic dimwit like me might understand. I also need a list of parts, where I might get them (probably Radio Shack?), and any helpful hints. Q3) I need an inexpensive source for the 68020/68881. I have heard that a student might get these from Motorola at a discount for research. Any information on this?? Q4) I would also like the same information on construction of the memory board (can't recall the name) for LUCAS which has been discussed ad infinitum lately. Cost and availability of 32-bit RAM chips (how fast do they have to be?)? Q5) Can LUCAS be altered to use the 68030/68882? If not, what are the optimum/fastest clock rates for the 68020/68881? Can an '020 LUCAS use a 68851 (correct number??) MMU? Any suggestions or other help from those of you who have built a LUCAS would be appreciated. Thanks, Scott Sutherland sutherla@qtp.ufl.edu