AR1011 datasheet(30/61 Pages) MICROCHIP

30 / 61 page

AR1000 SERIES RESISTIVE TOUCH SCREEN CONTROLLER

DS40001393C-page 30

 2009-2016 Microchip Technology Inc.

9.0

COMMANDS

9.1

Sending Commands

9.1.1

COMMAND SEND FORMAT

The

controller

supports

application-specific

configuration commands as shown in Table 9-1, below.

To ensure command communication is not interrupted

by touch activity, it is recommended that the controller

touch is disabled, prior to other commands. This can be

done as follows:

Send DISABLE_TOUCH command

Wait 50 ms

Send desired commands

Send ENABLE_TOUCH command

9.1.2

COMMAND RESPONSE

A received command will be responded to as seen in

Table 9-2 below.

The “Status” value within the response packet should

be one of the following (See Table 9-3):

TABLE 9-1:

COMMAND SEND FORMAT

Byte #

Name

Value

Description

Header

0x55

Header (mark beginning of command packet)

Size

0x<>

Size, # of bytes following this byte

Command

0x<>

Command ID

Data

0x<>

Data, if applicable for the command

Data

0x<>

Data, if applicable for the command

TABLE 9-2:

COMMAND RESPONSE FORMAT

Byte #

Name

Value

Description

Header

0x55

Header (mark beginning of command packet)

Size

0x<>

Size, # of bytes following this byte

Status

0x<>

Status

Command

0x<>

Command ID

Data

0x<>

Data, if applicable for the command

Data

0x<>

Data, if applicable for the command

TABLE 9-3:

COMMAND RESPONSE

STATUS VALUES

Status Value

Description

0x00

Success

0x01

Command Unrecognized

0x03

Header Unrecognized

0x04

Command Time Out (exceeded ~100

ms)

0xFC

Cancel Calibration mode

AR1011 Datasheet(PDF) 30 Page - Microchip Technology

AR1011 Datasheet(HTML) 30 Page - Microchip Technology

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61

Datasheet Download

Link URL