Periodic Keyboard Communications Wrap
Original Publication Date: 1986-May-01
Included in the Prior Art Database: 2005-Mar-09
Realtime, concurrent testing in the workstation, is increased by using protocol commands to continually monitor and test the keyboard communications link. Use of serial interface 20, in the drawing, has required the creation of a new protocol. This protocol is used by the workstation to communicate with the keyboard 10. A part of this protocol is the "Echo" command which is used to wrap the drivers/receivers of the keyboard and the workstation keyboard interface. Although this command can be used at any time, it has traditionally been used only during 'bring up diagnostics'. During a large percentage of a workstation's powered on hours, the keyboard is typically not used.