G8PPBase + 6502

Introduction

This is a two-board configuration consists of a G8PP in baseline configuration and a simple 6502 board on RC2014 backplane.

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6502 CPU Card

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Schematic of PCB 6502 CPU card

Gerber photoplots of 6502 CPU card

Prototype 6502 CPU Card

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This is a prototype of the 6502 CPU card. It is superseded by the PC board version.

Schematic of prototype 6502 CPU card

RC2014 Signal Definition

The following RC2014 signals are redefined for G8PPBase+6502

  • RC2014 Pin 19 (nM1) — SYNC (6502 pin 7)
  • RC2014 Pin 23 (nMREQ) — RWB (6502 pin 34)
  • RC2014 Pin 24 (nWR) — Not Assigned
  • RC2014 Pin 25 (nRD) — Not Assigned
  • RC2014 Pin 26 (nIORQ) — VPB (6502 pin 1)
  • RC2014 Pin 37 (Spare 1) — BE (6502 pin 36)
  • RC2014 Pin 38 (Spare 2) — RDY (6502 pin 2)
  • RC2014 Pin 39 (Spare 3) — NMIB (6502 pin 6)

G8PP Baseline Configuration

Introduction to G8PP

G8PP baseline configuration

Altera EPM7128SQC100 design for 6502

G8PPBase+6502

Memory Map

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'

6502 Monitor

EhBASIC by Lee Davison, load 'MIN_MON.HEX' as hex file (do not check the 'Binary' box in TeraTerm), type 'G e82a' after load is completed. EhBasic will respond with '6502 EhBASIC [C]old/[W]arm ?'

ASCIIART benchmark for EhBasic.

Manuals and Instructions

Getting Started with G8PPBase+6502 ←configure altera epm7128, load bootstrap, load 6502 monitor, load & run EhBASIC

6502 Monitor manual

builderpages/plasmo/g8pp/g8ppbase6502.txt · Last modified: 2020/01/24 13:19 by plasmo
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