Documentation and files for the Ferguson BigBoard single board computer Files and documentation from my BigBoard work.
These files accompany the videos at https://youtu.be/K9SL5NfVGII
Board-Mods.txt - Documents the two bodge wires I have on the backside of my BigBoards PCB.
IC-Power.png - Documents the power pins of some of the ICs on the PCB.
IC-Layout.png - Layout of the PCB showing the IC types and locations.
SIO2-RS232-Config.png - Consolodation from the users manual for setting up RS-232.
MicroCornucopia - Collection of Micro Cornucopia user magazines that covered the BigBoard.
jumpers.png - I/O connections and Jumper configurations
BodgeWires.prg - Documents the bodge wires on the PCB I have.
SIO2-BAUD-Crystal.png - Documents the use of either a 5.0688MHz or 4.9152MHz crystal for BAUD rate generation listing the deviation from standard BAUD rates. I'm using a 4.9152MHz crystal as it gives exact timing for 19200 BAUD.
DiskImages.zip - I have not tested these. Contains images of 8-inch floppy disks for the Big Board. I see what looks like CP/M on them which would make sense.
Added 4 schematic images. Each is suitable for printing on 11x17 pages.