AR1000_16 Datasheet, PDF (34/61 Pages) Microchip Technology – AR1000 Series Resistive Touch Screen Controller

AR1000 SERIES RESISTIVE TOUCH SCREEN CONTROLLER
9.3.4.1
AR1010/AR1020 Calibrate
Response
Send:
<0x55><0x02><0x14><Calibration Type>
Calibration Type
0x04
Receive: <0x55><0x02><0x00><0x14>
<0x55><0x02><0x00><0x14>
<0x55><0x02><0x00><0x14>
<0x55><0x02><0x00><0x14>
<0x55><0x02><0x00><0x14>
A successful CALIBRATE command results in five
response packets being sent to the host.
Once the response has been received for the
completed 4^th 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
Description
4 point
for initial command response
Response for touch of Calibration point #1
Response for touch of Calibration point #2
Response for touch of Calibration point #3
Response for touch of Calibration point #4
Send:
<0x55><0x02><0x14><Calibration Type>
Calibration Type
0x04
Receive: <0x55><0x02><0x00><0x14>
<0x55><0x02><0x00><0x14>
<0x55><0x02><0x00><0x14>
<0x55><0x02><0x00><0x14>
<0x55><0x02><0x00><0x14>
<0x55><0x02><0x00><0x14>
A successful CALIBRATE command results in six
response packets being sent to the host.
Description
4 point
for initial command response
Response for touch of Calibration point #1
Response for touch of Calibration point #2
Response for touch of Calibration point #3
Response for touch of Calibration point #4
Response after EEPROM has been written
DS40001393C-page 34
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