Difference between revisions of "SIMPLE-6802"

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== Software ==
 
== Software ==
 +
 +
=== SmithBUG Builds for SIMPLE-MC6802 CPU Card ===
 +
 +
* [http://land-boards.com/blwiki/index.php?title=SIMPLE-6802 SIMPLE-6802 Wiki Page]
 +
* Pre-built for 4KB, 8K, 16KB EPROMs
 +
 +
==== Building Code ====
 +
 +
* Uses a68 assembler
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** Command line makes S-Record output
 +
* Use srec_cat to shift from EPROM absolute addresses to 0x0000 as HEX file
 +
 +
==== 4KB Build ====
 +
 +
<pre>
 +
A68 SMITHBUG_SIMPLE-6802_F000.ASM -l SMITHBUG_SIMPLE-6802_F000.LST -s SMITHBUG_SIMPLE-6802_F000.S
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srec_cat SMITHBUG_SIMPLE-6802_F000.s -offset - -minimum-addr SMITHBUG_SIMPLE-6802_F000.s -o smithbug_F000.hex -Intel
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</pre>
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 +
==== 8KB Build ====
 +
 +
<pre>
 +
A68 SMITHBUG_SIMPLE-6802_E000.ASM -l SMITHBUG_SIMPLE-6802_E000.LST -s SMITHBUG_SIMPLE-6802_E000.S
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srec_cat SMITHBUG_SIMPLE-6802_E000.s -offset - -minimum-addr SMITHBUG_SIMPLE-6802_E000.s -o smithbug_E000.hex -Intel
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</pre>
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 +
==== 16KB Build ====
 +
 +
<pre>
 +
A68 SMITHBUG_SIMPLE-6802_C000.ASM -l SMITHBUG_SIMPLE-6802_C000.LST -s SMITHBUG_SIMPLE-6802_C000.S
 +
srec_cat SMITHBUG_SIMPLE-6802_C000.s -offset - -minimum-addr SMITHBUG_SIMPLE-6802_C000.s -o smithbug_C000.hex -Intel
 +
</pre>
 +
 +
<pre>
 +
; M MOVE MEMORY
 +
; E CHANGE MEMORY
 +
; G GO TO PROGRAM
 +
; R PRINT
 +
; T TRACE PROGRAM
 +
; @ ASCII CONVERSION
 +
; H PRINTER ON
 +
; V VIEW MEMORY
 +
; I FILL MEMORY
 +
; J JUMP TO TARGET PROGRAM
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; F FIND
 +
; Q HARDWARE LOCATION
 +
; D DISASSEMBLE CODE
 +
; K CONTINUE AFTER BREAK
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; 1 BREAKPOINT ONE
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; 2 BREAKPOINT TWO
 +
; & S1 LOAD PROGRAM
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; * HARDWARE LOCATION (TBA)
 +
; O ECHO ON
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; N ECHO OFF
 +
</pre>
  
 
== Mechanicals ==
 
== Mechanicals ==

Revision as of 11:56, 13 September 2022

SIMPLE-6802 REV1 FRONT (BLK).png

Features

  • Build of Grant Searles's Simple 6809 CPU
    • Runs MIKBUG
  • 68B02 CPU
    • 1.8432 MHz
  • 32KB SRAM
  • 16KB EPROM/EEPROM
    • 16KB reserved
    • 8KB (28C64 parts can be used)
  • 68B50 Serial Port (ACIA)
    • RS-232 port
    • Header for FTDI
    • 115,200 baud
  • Reset switch with optional Power Supervisor
  • 95x95mm card
  • (4) 6-32 mounting holes

Memory Map

  • 0x0000-0x7FFF 32KB SRAM
  • 0x8000-0xBFFF Serial (ACIA)
  • 0xC000-0xCFFF 16KB EPROM

Headers / Connectors

SIMPLE-6802 REV1 CAD.PNG

J1 - RS-232 Serial

  • DB-9 Male
  • Pinout
  1. N/C
  2. Receive
  3. Transmit
  4. Loop to pin 6
  5. GND
  6. Loop to pin 4
  7. RTS
  8. N/C
  9. N/C

J2 / J5 - EPROM/EEPROM Select Jumpers

PART PIN 1 PIN 27
27128 EPROM VPP (5V) PGM (5V)
27C256 EPROM VPP (5V) A14 (GND)
27C512 EPROM A15 (GND) A14 (GND)
AT28C64 EEPROM N/C WE (5V)
SST27SF256 FLASH VPP (5V) A14 (GND)
SST27SF512 FLASH A15 (GND) A14 (GND)

J3 - FTDI / TTL Serial

  1. GND
  2. RTS* (out)
  3. +5V
  4. Receive (in)
  5. Transmit (out)
  6. N/C

J4 - 5V Power

  • 2x4 header

Software

SmithBUG Builds for SIMPLE-MC6802 CPU Card

Building Code

  • Uses a68 assembler
    • Command line makes S-Record output
  • Use srec_cat to shift from EPROM absolute addresses to 0x0000 as HEX file

4KB Build

A68 SMITHBUG_SIMPLE-6802_F000.ASM -l SMITHBUG_SIMPLE-6802_F000.LST -s SMITHBUG_SIMPLE-6802_F000.S
srec_cat SMITHBUG_SIMPLE-6802_F000.s -offset - -minimum-addr SMITHBUG_SIMPLE-6802_F000.s -o smithbug_F000.hex -Intel

8KB Build

A68 SMITHBUG_SIMPLE-6802_E000.ASM -l SMITHBUG_SIMPLE-6802_E000.LST -s SMITHBUG_SIMPLE-6802_E000.S
srec_cat SMITHBUG_SIMPLE-6802_E000.s -offset - -minimum-addr SMITHBUG_SIMPLE-6802_E000.s -o smithbug_E000.hex -Intel

16KB Build

A68 SMITHBUG_SIMPLE-6802_C000.ASM -l SMITHBUG_SIMPLE-6802_C000.LST -s SMITHBUG_SIMPLE-6802_C000.S
srec_cat SMITHBUG_SIMPLE-6802_C000.s -offset - -minimum-addr SMITHBUG_SIMPLE-6802_C000.s -o smithbug_C000.hex -Intel

;	M	MOVE MEMORY
;	E	CHANGE MEMORY
;	G	GO TO PROGRAM
;	R	PRINT
;	T	TRACE PROGRAM
;	@	ASCII CONVERSION
;	H	PRINTER ON
;	V	VIEW MEMORY
;	I	FILL MEMORY
;	J	JUMP TO TARGET PROGRAM
;	F	FIND 
;	Q	HARDWARE LOCATION
;	D	DISASSEMBLE CODE
;	K	CONTINUE AFTER BREAK
;	1	BREAKPOINT ONE
;	2	BREAKPOINT TWO
;	&	S1 LOAD PROGRAM
;	*	HARDWARE LOCATION (TBA)
;	O	ECHO ON
;	N	ECHO OFF

Mechanicals

SIMPLE-6802 REV1 MECHS.PNG

Assembly Sheet

SIMPLE-6802 Rev 1 Assembly Sheet

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