AR1010-ISLASHML datasheet(39/70 Pages) MICROCHIP

39 / 70 page

 2009-2012 Microchip Technology Inc.

Preliminary

DS41393B-page 39

AR1000 SERIES RESISTIVE TOUCH SCREEN CONTROLLER

9.3.4.1

AR1010/AR1020 Calibrate

Response

A successful CALIBRATE command results in 5

response packets being sent to the host.

Once the response has been received for the

completed 4th target, a delay of one second must be

implemented prior to sending any commands to the

controller. This one second delay insures all data has

been completely written to the EEPROM.

9.3.4.2

AR1011/AR1021 Calibrate

Response

A successful CALIBRATE command results in six

response packets being sent to the host.

Send:

<0x55><0x02><0x14><Calibration Type>

Calibration Type

Description

0x04

4 point

Receive: <0x55><0x02><0x00><0x14>

for initial command response

<0x55><0x02><0x00><0x14>

Response for touch of Calibration point #1

<0x55><0x02><0x00><0x14>

Response for touch of Calibration point #2

<0x55><0x02><0x00><0x14>

Response for touch of Calibration point #3

<0x55><0x02><0x00><0x14>

Response for touch of Calibration point #4

Send:

<0x55><0x02><0x14><Calibration Type>

Calibration Type

Description

0x04

4 point

Receive: <0x55><0x02><0x00><0x14>

for initial command response

<0x55><0x02><0x00><0x14>

Response for touch of Calibration point #1

<0x55><0x02><0x00><0x14>

Response for touch of Calibration point #2

<0x55><0x02><0x00><0x14>

Response for touch of Calibration point #3

<0x55><0x02><0x00><0x14>

Response for touch of Calibration point #4

<0x55><0x02><0x00><0x14>

Response after EEPROM has been written

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