The XL200 hardware test already tests the communication with the Keyboard Pic when the Pic18F252 Test is selected. If the Pic is communicating with the 386, the Pic Software version will be displayed and the detected components will be displayed. However, if no communication occured, nothing was displayed.

The follwing changes were made to make troubleshooting Keyboard PIC communication easier.

1. If no communication occurs, "Software Version : Not Detected" will be displayed.
2. A menu option "P - Communication Test" has been added.

When the communication test is selected the Software Version will be requested over and over until power is cycled or "Q" is selected. This allows the communication circuit to be tested with a scope.