SUNKEYBOARD@PC

Parts of the project.

• Card layout. A postscript file. hc11.ps
• The 68HC11 source code.
• A component layout map.
• Scancode table for the new keys.

Links to useful information.

• HC11 software. (You need HC11.ZIP & LOADALL.ARC)
• Keyboard information.

Building the hardware.

If you don't see this as an easy project when you are looking at the layout gifs, you should not try to build this thing. Nether I or Ove have the time to help you out. And there is NO guarante what so ever. There are two things wrong on the gif showing the component layout. Both should be easy for you to find. OK, this time I help you a little. The capacistors near the crystal are should be 22 pF and the resistor 4.7 "nF" should be 4.7 kOhm.

The software.

You need two software tools. The first is the assembler translator, and the second is the loader. I use an assembler called as11, and it produce code for loader called loadall. Both are running in dos. The sequence is.

1. compile the code. DOS$ AS11 HC11.ASM
   The output is a file called hc11.s19
2. Connect the interface to com2 on your pc.
3. Remove the programing jumper on the board.
4. Push the reset button on the interface
5. Start the program load all. DOS$ LOADALL
6. Select load. If this do not work, check the hardware again...
7. Ok, we can download the program. Enter the filename hc11.s19
8. Put the jumper back.
9. Let's rock!

To thingk about.

• The interface needs power. (I use a separate PC as power supply while programing the hc11)
• Do not have the Sun keyboard connected while programing the hc11. (They use the same serial port)

Scancode table.

About the people.

This nice box is designed by Ove Risberg. He have done the most things. My contribution is some smaller changes to make it work even better on unix  (Linux/X11) systems.