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--- builderpages:dbdannunzio:start [2023/05/28 10:11] – Revision from 2023-05-28
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+/* Imported from Wayback Machine
+   Original URL : https://www.retrobrewcomputers.org/doku.php?id=builderpages:dbdannunzio:start
+   Snapshot date: 2026-03-11
+   Generator    : wayback-archiver
+*/
+Dennis Bernardo D'Annunzio
+My main current project is a S-100/IEEE696 replica computer. The initial version has all new-built boards, a modern power supply, a new card cage and enclosure. I am currently building and testing the board set (including the baseboard). Below are some outlines of my current project and thoughts. I hope to contribute more in the future as things progress and time permits (images, text docs, eda docs, etc.)
+Board Set Build and Test (in progress)
+S100 Z80 SBC
+S100 Propeller based I/O (rear panel)
+S100 V4 Baseboard
+S100 Monitor (front panel)
+Enclosure Design (SW or PRO/E) (in progress)
+Card Cage
+PS Cage
+Main Case/Chassis
+Front Panel
+Rear Panel
+Designed within the constraints of available machining tools
+Software Setup/Work (from S100)
+Monitor ROM (from S100)
+CP/M BIOS and setup (CF on SBC)
+Once the computer is completed, I am interested in using the computer for a few projects. The enclosure work will take the longest, but I can start using the computer once the board set is completed and tested. I have a lot of experience with Atmel ATMEGA uC and hope to put some of these devices inside an S100.
+**MIDI interface** - leverage the realtime capability of the S100 system (without interrupts) to create a tight MIDI sequencer
+Features and UI similar to Roland MC50 and/or MC80
+both of those have 2 line LCD interface that works well (no piano roll)
+hardware UI with buttons and scroll wheel
+Workstation and Live type functions
+record/overdub
+Looping
+rhythm track
+Multiple MIDI ports, programmatically assigned (in/out/merge/filter/etc.)
+**FPGA Personality Driver for CPU (Master/Slave) Board**
+Emulate one (or multiple) CPU boards, new or vintage
+Emulate disk images
+Use FPGA/Atmel ATMEGA combo core
+Use Atmel for A/D (and D/A)
+Use Atmel for user main loops after setup of FPGA, utilize RS232 interface or other between them.
+Also possibly use Atmel chip for bootloader interface to S-100 bus (using SIO interface)
+Direct bus to FPGA - FPGA for interface logic
+i8080
+i8085
+i8086 (x86): i80186, i80286, i80386,i80486
+z80
+m6805
+m68000?, etc.
+specific mfg boards, from Cromemco, IMSAI, Ithaca?, etc.
+**GPS RTC board**
+Always correct, based on GPS time and GPS location
+Possible DMA/memory mapped interfaces?
+**Vacuum Tube System Monitor (front panel or external)**
+programmable display
+steampunk
+References
+http://tubes-store.com/index.php?cPath=32_93
+**Touch screen System Monitor (front panel)** (modern)
+**Power supply telemetry** (voltage, current, temps)
+It's about time RFU was used, eh? How about an i2c bus?
+(bluesky) **Baseboard** upgrade with **per-slot power supply telemetry** (voltage, current)
+(bluesky) **Baseboard** upgrade with **programmable per-slot power supply voltages and telemetry**
+**** It's about time RFU was used, eh? Ethernet/twisted pair - wist traces on PCB as necessary, slot interconnect interleave