DS41393A-Page 24

© 2009 Microchip Technology, Inc.

9) Software to display the second calibration point target in the upper right quadrant of the display and prompt

the user to touch and release the target.

10) Wait for the user to touch and release the second calibration point target. Do this by looking for a controller

response of: <0x55><0x02><0x00><0x14>

11) Software to display the third calibration point target in the lower right quadrant of the display and prompt the

user to touch and release the target.

12) Wait for the user to touch and release the third calibration point target. Do this by looking for a controller

response of: <0x55><0x02><0x00><0x14>

Touch and

release target

13) Software to display the fourth calibration point target in the lower left quadrant of the display and prompt the

user to touch and release the target.

14) Wait for the user to touch and release the fourth calibration point target. Do this by looking for a controller

response of: <0x55><0x02><0x00><0x14>

Touch and

release target

15) Enable touch reporting by issuing <Enable Touch> command.

Send

: <0x55><0x01><0x12>

Receive

: <0x55><0x02><Response><0x12>

Touch and

release target