3M C3266PW 用户手册
36
3M™ Multi-Touch Chassis Display User Guide
3M Touch Systems, Inc. Proprietary Information – TSD-39373 REV E
Note:
Other screen resolutions will scale proportionally. The touch coordinates will not
change.
Get Feature - GetStatus
This is a request to send information that indicates the status of the controller. Among
the uses for this request are determining whether there were any power on check errors
and determining whether the last request was completed successfully.
the uses for this request are determining whether there were any power on check errors
and determining whether the last request was completed successfully.
Table 5. Controller Status Setup Stage
Offset Field
Size
Value
Description
0
bmRequestType
1
0xA1
Class,D2H,Interface
1
bRequest
1
0x01
Get Report
2
wValue
2
0x0306 msb=03=Feature
lsb=06= Feature Report ID
4
wIndex
2
0
Always 0
6
wLength
2
8
Always 8
Table 6. Controller Status Data Stage (controller response)
Offset Field
Size
Value
Description
0
Report ID
1
0x06
Feature Report ID
1
POC Status
1
0xXX
Power On Check Status
2
Cmd Status
1
0xXX
Status of last command
3
Touch Status
1
0
Not used
4
Async Reports
1
0xXX
0x00 = async touch output off
0x01 = async touch output on
0x01 = async touch output on
5-7
Not used
3
0
Not used
POC Status – The status of the Power-on Checks. Various controller systems are
checked at power-up. If any failures in these systems are detected, a POC flag is set. The
POC status field reports the state of these flags.
checked at power-up. If any failures in these systems are detected, a POC flag is set. The
POC status field reports the state of these flags.
(0, 1049) [0, 32767]
(1679, 1049) [32767, 32767]
Upper Right Calibration Target
X = 1679 – (1680 x 1/8) = 1679 – 210 = 1469
Y = 0 + (1050 x 1/8) = 0 + 131 = 131
Y = 0 + (1050 x 1/8) = 0 + 131 = 131
Lower Left Calibration Target
X = 0 + (1680 x 1/8) = 0 + 210 = 210
Y = 1049 - (1050 x 1/8) = 1049 - 131 = 918
(0, 0) [0, 0]
(
1679, 0) [32767, 0]
(210, 918)
(1469, 131)