Difference between revisions of "SIMPLE-6809"
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| Line 1: | Line 1: | ||
| − | [[FILE:SIMPLE- | + | [[FILE:SIMPLE-6809_P1090253-720pxV.jpg]] |
| + | |||
| + | <video type="youtube">p5mwMwwM-R0</video> | ||
== Features == | == Features == | ||
| Line 72: | Line 74: | ||
# N/C | # N/C | ||
| − | === J2 / J5 -EPROM/EEPROM Select Jumpers === | + | === J2 / J5 - EPROM/EEPROM Select Jumpers === |
[[FILE:SIMPLE-6809_J2_J5.PNG]] | [[FILE:SIMPLE-6809_J2_J5.PNG]] | ||
| + | |||
| + | * J2 - EPROM Pin 1 jumper | ||
| + | ** 1-2 for 28C64, 28C256 (Pull WE to VCC) | ||
| + | ** 2-3 for 27256, 27SF256, 27512 (Pull A14 to GND) | ||
| + | * J5 - EPROM Pin 27 jumper | ||
| + | ** GND (2-3) | ||
| + | |||
| + | ==== EEPROM Pin Table ==== | ||
{| class="wikitable" | {| class="wikitable" | ||
! 27512 | ! 27512 | ||
! 27256 | ! 27256 | ||
| + | ! 27SF256 | ||
| + | ! 28C256 | ||
! 27128 | ! 27128 | ||
! 2764 | ! 2764 | ||
| Line 88: | Line 100: | ||
! 28C64 | ! 28C64 | ||
! 27128 | ! 27128 | ||
| + | ! 28C256 | ||
| + | ! 27SF256 | ||
! 27256 | ! 27256 | ||
! 27512 | ! 27512 | ||
| Line 93: | Line 107: | ||
| A15 | | A15 | ||
| VPP | | VPP | ||
| + | | VPP | ||
| + | | A14 | ||
| VPP | | VPP | ||
| VPP | | VPP | ||
| N/C | | N/C | ||
| − | | 1 | + | | 1 |
| | | | ||
| 28 | | 28 | ||
| + | | VCC | ||
| + | | VCC | ||
| VCC | | VCC | ||
| VCC | | VCC | ||
| Line 105: | Line 123: | ||
| VCC | | VCC | ||
|- | |- | ||
| + | | A12 | ||
| + | | A12 | ||
| A12 | | A12 | ||
| A12 | | A12 | ||
| Line 112: | Line 132: | ||
| 2 | | 2 | ||
| | | | ||
| − | | 27 | + | | 27 |
| PGM | | PGM | ||
| WE* | | WE* | ||
| PGM | | PGM | ||
| + | | WE* | ||
| + | | A14 | ||
| A14 | | A14 | ||
| A14 | | A14 | ||
|- | |- | ||
| + | | A7 | ||
| + | | A7 | ||
| A7 | | A7 | ||
| A7 | | A7 | ||
| Line 129: | Line 153: | ||
| A13 | | A13 | ||
| N/C | | N/C | ||
| + | | A13 | ||
| + | | A13 | ||
| A13 | | A13 | ||
| A13 | | A13 | ||
| A13 | | A13 | ||
|- | |- | ||
| + | | A6 | ||
| + | | A6 | ||
| A6 | | A6 | ||
| A6 | | A6 | ||
| Line 143: | Line 171: | ||
| A8 | | A8 | ||
| A8 | | A8 | ||
| − | | | + | | A8 |
| + | | A8 | ||
| + | | A8 | ||
| A8 | | A8 | ||
| A8 | | A8 | ||
|- | |- | ||
| + | | A5 | ||
| + | | A5 | ||
| A5 | | A5 | ||
| A5 | | A5 | ||
| Line 157: | Line 189: | ||
| A9 | | A9 | ||
| A9 | | A9 | ||
| − | | | + | | A9 |
| + | | A9 | ||
| + | | A9 | ||
| A9 | | A9 | ||
| A9 | | A9 | ||
|- | |- | ||
| + | | A4 | ||
| + | | A4 | ||
| A4 | | A4 | ||
| A4 | | A4 | ||
| Line 171: | Line 207: | ||
| A11 | | A11 | ||
| A11 | | A11 | ||
| − | | | + | | A11 |
| + | | A11 | ||
| + | | A11 | ||
| A11 | | A11 | ||
| A11 | | A11 | ||
|- | |- | ||
| + | | A3 | ||
| + | | A3 | ||
| A3 | | A3 | ||
| A3 | | A3 | ||
| Line 185: | Line 225: | ||
| OE* | | OE* | ||
| OE* | | OE* | ||
| − | | | + | | OE* |
| + | | OE* | ||
| + | | OE* | ||
| OE* | | OE* | ||
| OE* | | OE* | ||
|- | |- | ||
| + | | A2 | ||
| + | | A2 | ||
| A2 | | A2 | ||
| A2 | | A2 | ||
| Line 199: | Line 243: | ||
| A10 | | A10 | ||
| A10 | | A10 | ||
| − | | | + | | A10 |
| + | | A10 | ||
| + | | A10 | ||
| A10 | | A10 | ||
| A10 | | A10 | ||
|- | |- | ||
| + | | A1 | ||
| + | | A1 | ||
| A1 | | A1 | ||
| A1 | | A1 | ||
| Line 213: | Line 261: | ||
| CE* | | CE* | ||
| CE* | | CE* | ||
| − | | | + | | CE* |
| + | | CE* | ||
| + | | CE* | ||
| CE* | | CE* | ||
| CE* | | CE* | ||
|- | |- | ||
| + | | A0 | ||
| + | | A0 | ||
| A0 | | A0 | ||
| A0 | | A0 | ||
| Line 227: | Line 279: | ||
| D7 | | D7 | ||
| D7 | | D7 | ||
| − | | | + | | D7 |
| + | | D7 | ||
| + | | D7 | ||
| D7 | | D7 | ||
| D7 | | D7 | ||
|- | |- | ||
| + | | D0 | ||
| + | | D0 | ||
| D0 | | D0 | ||
| D0 | | D0 | ||
| Line 241: | Line 297: | ||
| D6 | | D6 | ||
| D6 | | D6 | ||
| − | | | + | | D6 |
| + | | D6 | ||
| + | | D6 | ||
| D6 | | D6 | ||
| D6 | | D6 | ||
|- | |- | ||
| + | | D1 | ||
| + | | D1 | ||
| D1 | | D1 | ||
| D1 | | D1 | ||
| Line 255: | Line 315: | ||
| D5 | | D5 | ||
| D5 | | D5 | ||
| − | | | + | | D5 |
| + | | D5 | ||
| + | | D5 | ||
| D5 | | D5 | ||
| D5 | | D5 | ||
|- | |- | ||
| + | | D2 | ||
| + | | D2 | ||
| D2 | | D2 | ||
| D2 | | D2 | ||
| Line 269: | Line 333: | ||
| D4 | | D4 | ||
| D4 | | D4 | ||
| − | | | + | | D4 |
| + | | D4 | ||
| + | | D4 | ||
| D4 | | D4 | ||
| D4 | | D4 | ||
|- | |- | ||
| + | | GND | ||
| + | | GND | ||
| GND | | GND | ||
| GND | | GND | ||
| Line 283: | Line 351: | ||
| D3 | | D3 | ||
| D3 | | D3 | ||
| − | | | + | | D3 |
| + | | D3 | ||
| + | | D3 | ||
| D3 | | D3 | ||
| D3 | | D3 | ||
| Line 290: | Line 360: | ||
=== J3 - FTDI / TTL Serial === | === J3 - FTDI / TTL Serial === | ||
| + | |||
| + | * Requires a FTDI cross-over cable | ||
| + | |||
| + | [[FILE:SIMPLE-6809_J3_FTDI.PNG]] | ||
| + | |||
| + | * Rev 1 PCB silkscreen is wrong (both sides of the card) | ||
| + | |||
| + | [[file:SIMPLE-6809_J3.PNG]] | ||
# GND | # GND | ||
| − | # | + | # N/C |
# +5V | # +5V | ||
| + | # Transmit (out) | ||
# Receive (in) | # Receive (in) | ||
| − | |||
# N/C | # N/C | ||
| Line 303: | Line 381: | ||
== First Unit Checkout == | == First Unit Checkout == | ||
| + | |||
| + | [[FILE:SIMPLE-6809_P1090174-720PX.jpg]] | ||
=== Install Sockets === | === Install Sockets === | ||
* Machined pin sockets | * Machined pin sockets | ||
| + | |||
| + | [[FILE:SIMPLE-6809_P1090171-720PX.jpg]] | ||
=== Install Passives === | === Install Passives === | ||
| Line 319: | Line 401: | ||
* Install Clock parts | * Install Clock parts | ||
| − | |||
** Install 7.3728 MHz crystal | ** Install 7.3728 MHz crystal | ||
** Install C5, C6 | ** Install C5, C6 | ||
| + | |||
| + | [[file:SIMPLE-6809_P1090189-720px.jpg]] | ||
| + | |||
| + | * Install CPU at U5 | ||
=== Reset === | === Reset === | ||
| Line 367: | Line 452: | ||
* Device programmed/verified | * Device programmed/verified | ||
| − | === Test Serial === | + | === Install CPU, ROM, RAM, ACIA === |
| + | |||
| + | * Do not install MAX232 yet | ||
| + | ** Use FTDI connector with [[FTDI-49MM]] card | ||
| + | |||
| + | === Test FTDI Serial === | ||
| + | |||
| + | * Silkscreen swapped for TX, RX | ||
| + | |||
| + | [[FILE:SIMPLE-6809_J3.PNG]] | ||
| + | * Wiring is '''not''' 1:1 to [[FTDI-49MM]] | ||
* Wire FTDI J3 to [[FTDI-49MM]] card | * Wire FTDI J3 to [[FTDI-49MM]] card | ||
| − | ** | + | ** [[FTDI-49MM]] GND pin 1 to J3-1 RX on card |
| − | ** | + | ** [[FTDI-49MM]] VCC pin 3 to J3-3 RX on card |
| − | ** TX on [[FTDI-49MM]] to | + | ** [[FTDI-49MM]] TX pin 4 on to J3-5 RX on card |
| − | ** | + | ** [[FTDI-49MM]] RX pin 5 on to J3-4 TX on card |
| + | ** [[FTDI-49MM]] CTS(in) pin 2 to J3-6 CTS on card | ||
| + | |||
| + | [[FILE:SIMPLE-6809_BASIC_DISPLAY.PNG]] | ||
| + | |||
| + | [[file:SIMPLE-6809_P1090253-720pxV.jpg]] | ||
| + | |||
| + | === Test RS-232 Serial === | ||
| + | |||
| + | * With MAX232 | ||
| + | * Install DB-9 Male | ||
| + | * Holes don't line up well, but 4-40 screws can fit | ||
| + | * Connected to [[FTDI-49MM]] and [[DCE]] cards | ||
| + | ** [[FTDI-49MM]] and [[DCE]] cards wired together | ||
| + | ** [[DCE]] has female DB-9 | ||
| + | ** Separate power cable J2 on [[FTDI-49MM]] to J3 on card | ||
| + | |||
| + | [[FILE:FTDI_DCE_P1090192-720PXV.jpg]] | ||
| + | |||
| + | * Works | ||
== Software == | == Software == | ||
| + | |||
| + | * [https://github.com/land-boards/lb-boards/blob/master/RetroCPUs/SIMPLE-6809/SOFTWARE/ExBasROM.hex ExBasROM.hex] - ROM file | ||
| + | |||
| + | === ROM BASIC assembly listing === | ||
| + | |||
| + | * AS9 was used to assemble the BASIC listing | ||
| + | * Grant wrote a serial handler to control the text I/O, along with suitable Control-C break handling | ||
| + | * Includes commands from the "Extended" BASIC ROM (from the "Extended BASIC Unraveled II" book) | ||
| + | * The ROM in the SBC is fully working with all the commands in the Standard and Extended ROMS that are applicable to the SBC | ||
| + | * Assembled using as9 (see link later on this page) with the following command... | ||
| + | |||
| + | <pre> | ||
| + | as9 exbasrom.asm -now l s19 | ||
| + | </pre> | ||
| + | |||
| + | * *-now" suppresses warnings | ||
| + | * "l" produces a lst file | ||
| + | * "s19" produces an s19 hex file | ||
| + | * If you use as9, you will probably get a "Null pointer assignment" message when it completes | ||
| + | ** This can be ignored, and is a known bug with as9 that doesn't affect operation (according to the readme file that came with it) | ||
| + | |||
| + | == Performance == | ||
| + | |||
| + | * TeraTerm settings | ||
| + | |||
| + | [[file:SIMPLE-6809_TeraTerm_Setup.PNG]] | ||
| + | |||
| + | * Test software | ||
| + | |||
| + | <pre> | ||
| + | 10 FOR I =1 TO 10000 | ||
| + | 20 PRINT I | ||
| + | 30 NEXT I | ||
| + | |||
| + | </pre> | ||
| + | |||
| + | * Time ~52 secs | ||
== Mechanicals == | == Mechanicals == | ||
| Line 383: | Line 534: | ||
== Assembly Sheet == | == Assembly Sheet == | ||
| − | [[SIMPLE-6809 Rev 1 Assembly Sheet]] | + | * [http://land-boards.com/SIMPLE-6809/SIMPLE-6809_REV2_ibom.html SIMPLE-6809 Rev 2 Interactive BOM] |
| + | * [[SIMPLE-6809 Rev 1 Assembly Sheet]] | ||
| + | * [http://land-boards.com/SIMPLE-6809/SIMPLE-6809_REV1_ibom.html SIMPLE-6809 Rev 1 Interactive BOM] | ||
Latest revision as of 15:57, 19 March 2023
Contents
Features
- Build of Grant Searles's Simple 6809 CPU
- Runs BASIC
- 68B09 CPU
- 7.3728 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
Chipset
Design
- CPU
- EEPROM
- SRAM
- Logic
- ACIA
Headers / Connectors
J1 - RS-232 Serial
- DB-9 Male
- Pinout
- N/C
- Receive
- Transmit
- Loop to pin 6
- GND
- Loop to pin 4
- RTS
- N/C
- N/C
J2 / J5 - EPROM/EEPROM Select Jumpers
- J2 - EPROM Pin 1 jumper
- 1-2 for 28C64, 28C256 (Pull WE to VCC)
- 2-3 for 27256, 27SF256, 27512 (Pull A14 to GND)
- J5 - EPROM Pin 27 jumper
- GND (2-3)
EEPROM Pin Table
| 27512 | 27256 | 27SF256 | 28C256 | 27128 | 2764 | 28C64 | PIN | PIN | 2764 | 28C64 | 27128 | 28C256 | 27SF256 | 27256 | 27512 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| A15 | VPP | VPP | A14 | VPP | VPP | N/C | 1 | 28 | VCC | VCC | VCC | VCC | VCC | VCC | VCC | |
| A12 | A12 | A12 | A12 | A12 | A12 | A12 | 2 | 27 | PGM | WE* | PGM | WE* | A14 | A14 | A14 | |
| A7 | A7 | A7 | A7 | A7 | A7 | A7 | 3 | 26 | A13 | N/C | A13 | A13 | A13 | A13 | A13 | |
| A6 | A6 | A6 | A6 | A6 | A6 | A6 | 4 | 25 | A8 | A8 | A8 | A8 | A8 | A8 | A8 | |
| A5 | A5 | A5 | A5 | A5 | A5 | A5 | 5 | 24 | A9 | A9 | A9 | A9 | A9 | A9 | A9 | |
| A4 | A4 | A4 | A4 | A4 | A4 | A4 | 6 | 23 | A11 | A11 | A11 | A11 | A11 | A11 | A11 | |
| A3 | A3 | A3 | A3 | A3 | A3 | A3 | 7 | 22 | OE* | OE* | OE* | OE* | OE* | OE* | OE* | |
| A2 | A2 | A2 | A2 | A2 | A2 | A2 | 8 | 21 | A10 | A10 | A10 | A10 | A10 | A10 | A10 | |
| A1 | A1 | A1 | A1 | A1 | A1 | A1 | 9 | 20 | CE* | CE* | CE* | CE* | CE* | CE* | CE* | |
| A0 | A0 | A0 | A0 | A0 | A0 | A0 | 10 | 19 | D7 | D7 | D7 | D7 | D7 | D7 | D7 | |
| D0 | D0 | D0 | D0 | D0 | D0 | D0 | 11 | 18 | D6 | D6 | D6 | D6 | D6 | D6 | D6 | |
| D1 | D1 | D1 | D1 | D1 | D1 | D1 | 12 | 17 | D5 | D5 | D5 | D5 | D5 | D5 | D5 | |
| D2 | D2 | D2 | D2 | D2 | D2 | D2 | 13 | 16 | D4 | D4 | D4 | D4 | D4 | D4 | D4 | |
| GND | GND | GND | GND | GND | GND | GND | 14 | 15 | D3 | D3 | D3 | D3 | D3 | D3 | D3 |
J3 - FTDI / TTL Serial
- Requires a FTDI cross-over cable
- Rev 1 PCB silkscreen is wrong (both sides of the card)
- GND
- N/C
- +5V
- Transmit (out)
- Receive (in)
- N/C
J4 - 5V Power
- 2x4 header
First Unit Checkout
Install Sockets
- Machined pin sockets
Install Passives
Power
- Install 2x4 at J4
- Power card via J4 with 5V
- Check power pins on parts
Clock
- Install Clock parts
- Install 7.3728 MHz crystal
- Install C5, C6
- Install CPU at U5
Reset
- Install U7 Power Monitor
- Install pushbutton switch SW1
- Reset button gets stretched by Power Monitor U9
- Measure reset at 68B09 U5 pin 37
- Falling edge scope cap
EPROM
- SST27C256 EEPROM
- 32 KB part
- Using first 16KB of EEPROM
- J2 EEPROM pin 1 = VPP = VCC or GND
- Jumper J2:2-3
- J5 EEPROM pin 27 = A14 = GND
- Jumper J5:2-3
- U1 - Do not install MAX232
- Use FTDI connector with FTDI-49MM card
EEPROM Programming
- Program using TL-866ii plus programmer
- File = ExBasROM.hex
- Set offsets for 27SF256 part
- Part is 32 KB
- hex files is 16 KB
- Set From File Start Addr(Hex) to 0C000
- To Buffer Start Addr(Hex) to 00000
- Memory Buffer should look like
- Got Device ID error
- Turn off ID check
- Device programmed/verified
Install CPU, ROM, RAM, ACIA
- Do not install MAX232 yet
- Use FTDI connector with FTDI-49MM card
Test FTDI Serial
- Silkscreen swapped for TX, RX
Test RS-232 Serial
- With MAX232
- Install DB-9 Male
- Holes don't line up well, but 4-40 screws can fit
- Connected to FTDI-49MM and DCE cards
- Works
Software
- ExBasROM.hex - ROM file
ROM BASIC assembly listing
- AS9 was used to assemble the BASIC listing
- Grant wrote a serial handler to control the text I/O, along with suitable Control-C break handling
- Includes commands from the "Extended" BASIC ROM (from the "Extended BASIC Unraveled II" book)
- The ROM in the SBC is fully working with all the commands in the Standard and Extended ROMS that are applicable to the SBC
- Assembled using as9 (see link later on this page) with the following command...
as9 exbasrom.asm -now l s19
- *-now" suppresses warnings
- "l" produces a lst file
- "s19" produces an s19 hex file
- If you use as9, you will probably get a "Null pointer assignment" message when it completes
- This can be ignored, and is a known bug with as9 that doesn't affect operation (according to the readme file that came with it)
Performance
- TeraTerm settings
- Test software
10 FOR I =1 TO 10000 20 PRINT I 30 NEXT I
- Time ~52 secs
Mechanicals
