AR1010 Microchip Technology, Inc., AR1010 Datasheet - Page 23
AR1010
Manufacturer Part Number
AR1010
Description
Manufacturer
Microchip Technology, Inc.
Datasheet
1.AR1010.pdf
(37 pages)
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7.15.3 Calibrate - 0x14
Enter “calibration” mode. This instructs the controller to enter a mode of accepting the next four touches as the
calibration point coordinates. See section Calibration of Touch Sensor with Controller for an example.
Completion of calibration mode will automatically store the calibration point coordinates in on-board controller
memory and set (to 1) the CCE bit of the TouchOptions register. This bit enables the controller to report touch
coordinates that have been processed with the pre-collected calibration data.
The “calibration” mode will be cancelled by sending any command before the mode has been completed.
Send
Receive : <0x55><0x02><Response><0x14>
To provide for proper touch orientation, the four sequential calibration touches must be input in the following
physical order on the touch sensor.
© 2009 Microchip Technology, Inc.
Upper Left
Lower Left
# 1
# 4
: <0x55><0x02><0x14><Calibration Type>
Calibration Type
0x04
Touch Sensor
<0x55><0x02><Response><0x14>
<0x55><0x02><Response><0x14>
<0x55><0x02><Response><0x14>
<0x55><0x02><Response><0x14>
Upper Right
Lower Right
Description
4 point
# 2
# 3
for initial command response
for response to 1
for response to 2
for response to 3
for response to 4
st
nd
rd
th
target touch release
target touch release
target touch release
target touch release
DS41393A-Page 19