Difference between revisions of "SIMPLE-6802"
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| Line 6: | Line 6: | ||
** Runs MIKBUG | ** Runs MIKBUG | ||
* 68B02 CPU | * 68B02 CPU | ||
| + | ** 1.8432 MHz | ||
* 32KB SRAM | * 32KB SRAM | ||
* 16KB EPROM/EEPROM | * 16KB EPROM/EEPROM | ||
| Line 11: | Line 12: | ||
** RS-232 port | ** RS-232 port | ||
** Header for FTDI | ** Header for FTDI | ||
| + | ** 115,200 baud | ||
* Reset switch with optional Power Supervisor | * Reset switch with optional Power Supervisor | ||
* 95x95mm card | * 95x95mm card | ||
Revision as of 17:04, 12 September 2022
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Contents
Features
- Build of Grant Searles's Simple 6809 CPU
- Runs MIKBUG
- 68B02 CPU
- 1.8432 MHz
- 32KB SRAM
- 16KB EPROM/EEPROM
- 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
- 0x8000-0x9FFF Free Space (8KB)
- 0xA000-0xBFFF Serial (ACIA)
- 0xC000-0xCFFF 16KB EPROM
Headers
EPROM/EEPROM Select Jumpers
| PART | J2 PIN 1 | J5 PIN 27 |
|---|---|---|
| 27128 EPROM | VPP (5V) | PGM (5V) |
| 27C256 EPROM | VPP (5V) | A14 (GND) |
| 27C512 EPROM | A15 (GND) | A14 (GND) |
| SST27SF256 EEPROM | VPP (5V) | A14 (GND) |
| SST27SF512 EEPROM | A15 (GND) | A14 (GND) |
Connectors
J1 - RS-232 Serial
- N/C
- Receive
- Transmit
- Loop to pin 6
- GND
- Loop to pin 4
- RTS
- N/C
- N/C
J3 - FTDI / TTL Serial
- GND
- RTS* (out)
- +5V
- Receive (in)
- Transmit (out)
- N/C
J4 - 5V Power
- 2x4 header
Mechanicals
