C2254PW 3M, C2254PW Datasheet - Page 29

• Manufacturer Part Number: C2254PW
• Description: LCD Touch Panels 22 C2254PW 10 Point Multi-Touch
• Manufacturer: 3M
• Series: -r
• Type: Capacitiver

Specifications of C2254PW

• Length: 18.6" (473.8mm)
• Width: 19.7" (500mm)
• Height: 11.6" (296.1mm)
• Interface: USB/Serial
• Diagonal Screen Size: 22" (559mm)
• Lead Free Status / Rohs Status: Details

3M™ Multi-Touch Chassis Display User Guide
Get Feature - GetStatus
Table 5. Controller Status Setup Stage
Table 6. Controller Status Data Stage (controller response)
Y = 1049 - (1050 x 1/8) = 1049 - 131 = 918
X = 0 + (1680 x 1/8) = 0 + 210 = 210
Lower Left Calibration Target
Note: Other screen resolutions will scale proportionally. The touch coordinates will not
change.
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.
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.
Offset
0
1
2
4
6
Offset
0
1
2
3
4
5-7
Field
bmRequestType
bRequest
wValue
wIndex
wLength
Field
Report ID
POC Status
Cmd Status
Touch Status
Async Reports
Not used
3M Touch Systems, Inc. Proprietary Information -- 37732v04
(0, 1049) [0, 32767]
(0, 0) [0, 0]
(210, 918)
Size
1
1
2
2
2
Size
1
1
1
1
1
3
Value
0xA1
0x01
0x0306
0
8
Value
0x06
0xXX
0xXX
0
0xXX
0
(1469, 131)
(
1679, 0) [32767, 0]
Description
Class,D2H,Interface
Get Report
msb=03=Feature
lsb=06= Feature Report ID
Always 0
Always 8
Description
Feature Report ID
Power On Check Status
Status of last command
Not used
0x00 = async touch output off
0x01 = async touch output on
Not used
(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
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