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Chapter 6
42
Demand Reporting (*D)
The *D command switches the control unit to the Demand reporting
mode. In this mode, the control unit stops generating mouse data
reports automatically and only generates a mouse data report upon
request via a *d (Demand a Single Report) command. You can issue the
*D command in any 3D reporting mode. If you issue this command
while the control unit is transmitting a report, the report will continue
to the end and will not be truncated.
Demand a Single Report (*d)
The *d command causes the control unit to transmit the last valid 3D
[mouse data report. If the receiver or transmitter are not operating, or if
the receiver is not in a valid tracking space, the points returned from
successive single report commands will not change. Position and
orientation data for the receiver is updated every 20 ms within the
control unit. Therefore, the mouse data report received in Demand
reporting mode can be delayed up to 20 ms from when the control unit
has updated the position and orientation data for the receiver. You can
only issue this command in Demand Reporting mode.
Incremental Reporting (*I)
The *I command switches the control unit to the Incremental reporting
mode. In this reporting mode, the control unit sends mouse data reports
continuously as long as the receiver is moving. The host computer may
have to keep up with an information flow of up to 50 reports per second.
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