Exile In Paradise

Stranded on Earth...

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sst-6809:top [2024/10/25 19:47] – [SST-6809 Single Board Computer] robertsst-6809:top [2025/02/01 07:26] (current) – [M8 Motorino and VDP09] robert
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 ==== JP3 ==== ==== JP3 ====
  
-^ JP3 ^ Selects ^ +^  JP3  ^  Selects  ^ 
-| 1-2 | External 5V from screw terminals | +|  1-2  |  External 5V from screw terminals  | 
-| 2-3 | 5V Comes from USB serial adapter |+|  2-3  |  5V Comes from USB serial adapter  |
  
 Some boards like the [[#M8 Game Board]] use too much power for the USB port to supply. Some boards like the [[#M8 Game Board]] use too much power for the USB port to supply.
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 ==== JP5 ==== ==== JP5 ====
  
-^ JP5 ^ SBC V2.1 Boot ROM Select ((SBC V2.0 has two jumpers for ROM select.)) ^ +^  JP5  ^  SBC V2.1 Boot ROM Select ((SBC V2.0 has two jumpers for ROM select.))  ^ 
-| 1-2 | normal | +|  1-2  |  normal  | 
-| 2-3 | ROM A14 inverted |+|  2-3  |  ROM A14 inverted  |
  
 In the normal position, the system boots from the top of the 32K EEPROM In the normal position, the system boots from the top of the 32K EEPROM
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 ==== J4 ==== ==== J4 ====
  
-^ J4 ^ Main Serial Connector ^ +^  J4  ^  Main Serial Connector  ^ 
-| 1 | Ground | +|  1  |  Ground  | 
-| 2 | VCC (5V) | +|  2  |  VCC (5V)  | 
-| 3 | Transmit Data (TXD) | +|  3  |  Transmit Data (TXD)  | 
-| 4 | Receive Data (RXD) | +|  4  |  Receive Data (RXD)  | 
-| 5 | Data Terminal Ready (DTR) - Not Connected | +|  5  |  Data Terminal Ready (DTR) - Not Connected  | 
-| 6 | 3V3 - Not Connected |+|  6  |  3V3 - Not Connected  |
  
 ==== J5 ==== ==== J5 ====
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 J5 exposes some 6x09 signals that do not appear on [[#The M8 Bus]] J5 exposes some 6x09 signals that do not appear on [[#The M8 Bus]]
  
-^ Pin ^ Signal ^ +^  J5 Pin  ^  Signal  ^ 
-| 1 | 6x09 Bus Status (BS) | +|  1  |  6x09 Bus Status (BS)  | 
-| 2 | NVBAT | +|  2  |  NVBAT  | 
-| 3 | 6x09 /FIRQ "Fast" Interrupt Request | +|  3  |  6x09 /FIRQ "Fast" Interrupt Request  | 
-| 4 | 6x09 /RESET Reset Interrupt Request | +|  4  |  6x09 /RESET Reset Interrupt Request  | 
-| 5 | M8 Bus Select 1 (BSEL1) | +|  5  |  M8 Bus Select 1 (BSEL1)  | 
-| 6 | Ground | +|  6  |  Ground  | 
  
 The NVBAT pin on J5 has two possible uses. The NVBAT pin on J5 has two possible uses.
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 One important purpose of the BAT2 connection, is that the on board battery may be removed for replacement without incurring memory loss, provided that a second battery is temporarily connected to GND and BAT2 on J6. One important purpose of the BAT2 connection, is that the on board battery may be removed for replacement without incurring memory loss, provided that a second battery is temporarily connected to GND and BAT2 on J6.
  
-^ Pin ^ Purpose ^ +^  J6 Pin  ^  Purpose  ^ 
-| 1 | Ground | +|  1  |  Ground  | 
-| 2 | Battery 2 | +|  2  |  Battery 2  | 
-| 3 | Serial Ready To Send (RTS) | +|  3  |  Serial Ready To Send (RTS)  | 
-| 4 | Serial Data Terminal Ready (DTR) |+|  4  |  Serial Data Terminal Ready (DTR)  |
  
 ===== SBC Reset Circuit ===== ===== SBC Reset Circuit =====
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 [[https://github.com/KenWillmott/6522-proto]] [[https://github.com/KenWillmott/6522-proto]]
 +
 +===== M8 Blinkenlights =====
 +
 +:!: Coming soon
  
 ===== Software ===== ===== Software =====
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   * [[BUGGY]] 1.01 by Lennart Benschop   * [[BUGGY]] 1.01 by Lennart Benschop
  
 +===== M8 Motorino and VDP09 =====
 +
 +The M8 family grew with the addition of the M8 Game Board (code name Motorino):
 +
 +{{:sst-6809:sst_and_game_board.png?400|SST-6809 V2.1 with M8 Game Board}}
 +
 +The SST-6809 V2.1 board is on the left and the M8 Game Board is on the right.
 +
 +{{:sst-6809:vdp09.png?400|M8 Game Board running VDP09 Demo}}
 +
 +The M8 Game Board brings a TI TMS9918A Video Display Processor (think ColecoVision graphics), a Phillips SAA1099P six-channel stereo sound generator, 2 digital joystick ports, and a Motorola 6850 or Hitachi 6350 serial ACIA port.
 +
 +Here, the M8 Game Board runs a VDP09 demo with a bouncing sprite over a changing Graphics II mode background. 
 ===== Future ... ===== ===== Future ... =====