G8PPBase + 6809

Introduction

This is a two-board configuration consists of a G8PP in baseline configuration and a simple 6809 board. The 6809 CPU board can be plugged directly into the baseline G8PP. Alternatively the baseline G8PP and 6809 CPU board can plug into a RC2014 backplane.

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6809 CPU Card

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Schematic of PCB 6809 CPU card

Gerber photoplots of 6809 CPU card

Prototype 6809 CPU Card

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This is a prototype of the 6809 CPU card. It is superseded by the PC board version.

Schematic of prototype 6809 CPU card

RC2014 Signal Definition

The following RC2014 signals are redefined for G8PPBase+6809

  • RC2014 Pin 19 (nM1) — Q (6809 pin 35)
  • RC2014 Pin 23 (nMREQ) — E (6809 pin 34)
  • RC2014 Pin 24 (nWR) — RnW (6809 pin 32)
  • RC2014 Pin 25 (nRD) — Not Assigned
  • RC2014 Pin 26 (nIORQ) — Not Assigned
  • RC2014 Pin 37 (Spare 1) — nBREQ (6809 pin 37)
  • RC2014 Pin 38 (Spare 2) — MRDY (6809 pin 36)
  • RC2014 Pin 39 (Spare 3) — nNMI (6809 pin 2)

G8PP Baseline Configuration

G8PPBase+6809

Memory Map

Hello_world ← a simple demo program loaded with serial port to demonstrate serial bootstrapping operation. Program is assembled with asm6809

Serial Bootstrap, move jumper to 'Serial Bootstrap' position, load Tinyload.bin as binary file (check the 'Binary' box in TeraTerm), Tinyload will sign on with '12/26/18'

6809 Monitor

Manuals and Instructions

Getting started with G8PPBase+6809 ←configure altera epm7128, load bootstrap, load 6809 monitor,

6809 Monitor manual

builderpages/plasmo/g8pp/g8ppbase6809.txt · Last modified: 2020/06/04 00:27 by plasmo
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