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AR1010T-I/ML 数据表(PDF) 35 Page - Microchip Technology

部件名 AR1010T-I/ML
功能描述  Resistive Touch Screen Controller
PDF  70 Pages
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制造商  MICROCHIP [Microchip Technology]
网页  http://www.microchip.com
标志 MICROCHIP - Microchip Technology

AR1010T-I/ML 数据表(HTML) 35 Page - Microchip Technology

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 2009-2012 Microchip Technology Inc.
Preliminary
DS41393B-page 35
AR1000 SERIES RESISTIVE TOUCH SCREEN CONTROLLER
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:
1.
Send DISABLE_TOUCH command
2.
Wait 50 ms
3.
Send desired commands
4.
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
1
Header
0x55
Header (mark beginning of command packet)
2
Size
0x<>
Size, # of bytes following this byte
3
Command
0x<>
Command ID
4
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
1
Header
0x55
Header (mark beginning of command packet)
2
Size
0x<>
Size, # of bytes following this byte
3
Status
0x<>
Status
4
Command
0x<>
Command ID
5
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



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