Table of Contents
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Table of Contents
G8PPBase + Z80
Introduction
This is a two-board configuration consists of a G8PP in baseline configuration and a simple Z80 board on RC2014 backplane.
Z80 CPU Card
Prototype Z80 CPU Card
This is a prototype of the Z80 CPU card. It is superseded by the PC board version.
Schematic of prototype Z80 CPU card
RC2014 Signal Definition
The predefined RC2014 signals remain the same. The spare signals are connected to the following Z80 signals:
RC2014 Pin 37 (Spare 1) — nBUSRQ (Z80 pin 25)
RC2014 Pin 38 (Spare 2) — nWAIT (Z80 pin 24)
RC2014 Pin 39 (Spare 3) — nNMI (Z80 pin 17)
G8PP Baseline configuration
G8PPBase+Z80
Serial Bootstrap, move jumper to 'Serial Bootstrap' position, load G8PZ80LD.BIN as binary file (check the 'Binary' box in TeraTerm), G8PZ80LD will sign on with:
Z80SBC Loader v0.4
G xxxx to run
Z80 Monitor, https://retrobrewcomputers.org/lib/exe/fetch.php?media=builderpages:plasmo:g8pp:g8ppz80:g8ppz80zmon_1_5_19.zip load 'G8PZMon.HEX' as hex file (do not check the 'Binary' box in TeraTerm), type 'G b400' after load is completed. G8PZMon will respond with
Z80SBC Monitor v0.52 10/31/18
>
CP/M 2.2 CCP/BDOS/BIOS
XMODEM.HEX, This is the XMODEM transfer program. Load XMODEM.HEX then type 'b2' to boot up CP/M 2.2 (CP/M 2.2 was loaded and saved prior to this). Then type: 'save 17 xmodem.com' to create the first program in CF drive
depkg.com, this is Grant Seale's file depackaging program. Transfer it with XMODEM, then transfer the CP/M 2.2 distribution package below and use depkg.com to unpack the CP/M 2.2 distribution files.
CP/M 2.2 distribution files, use depkg.com to unpack the CP/M 2.2 distribution files.
CP/M 3
CP/M 3 distribution files
Manuals and Instructions
Getting started with G8PPBase+Z80 ←configure altera epm7128, load bootstrap, load z80 monitor, load cp/m
Z80 Monitor manual