The image shows the empty board without any components on it.

 

This board has connectors for:

• JTAG programing of the CPLD
• 25 pin LPT (PC paralell port)
• GameBoy Cartrdige connector
• External Power
  

The board supports any  member of t he Xilinx CPLD XC95xx in PQ100 package. The board also has a voltage regulator in the back to support any CPLD voltage. I will give more information about the external power and support for different devices (5V, 3,3V and 2.5V devices).

 

This image shows the board with a Xilinx XC9572-15 soldered on it. This component is a 5Volt device and is perfect for backing up the GB/GBC devices.

 

 

 

 

This is the back of the board,  with space for a regulator in case the user wants to use a voltage higer than 5 volt. 

 

In this picture, all the necessary components are connected on the board. The D1 and U4 are bypassed since they are not  necessary on this design and the C21 has been replaced by a 22uF electrolyte capacitor to make a more stabel VCC on this board.

 

In this picture, the 25pin LPT connecter is soldered on the board.  At the same time, you can see the JTAG connector being soldiered as well.

 

I do not have any GB connectors, so I used an old, non-working GB to take the connector from it.

 

Unlike GBC and GBA. old GB is very easy to open, you do not need any special screw drivers.

After you open up the GB, you  can see the GB connector on the left side, you need to de-solder the connecor and remove it from the board.

 

After you are done with de-soldering the GB connector, you can connect it to the Xilinx board.