MicroTouch Micro Touch Capacitive Controller MT3000, Справочное руководство, Страница: 47 / 64

Chapter 2 Communicating with the MT3000 Controller 47
Mode Status
Syntax:
<SOH> MT <CR>
Description:
Sends a touch status byte preceding the X, Y coordinate data sent in
response to a Format Decimal or Format Hexadecimal command. The
format of the data depends on the last format command received by the
controller.
By default, Format Decimal and Format Hexadecimal send a 9-byte data
packet. The first byte is the header byte. If you use the Mode Status
command, the first byte becomes a status byte. This status byte defines
whether the X, Y coordinates are generated from a touchdown, a touch
continuation (when the finger is resting on the screen), or a touch liftoff.
MicroTouch recommends that you use the Mode Status command in
conjunction with Format Decimal and Format Hexadecimal so that the
touch data includes status information in the packet header byte. By
default, Format Decimal and Format Hexadecimal do not contain the status
information in the header byte.
Note:
You should always send the format command (Decimal and
Hexadecimal) first, and then send the Mode Status command.
You do not need to send a Mode Status command if you are using Format
Tablet, Format Binary, or Format Binary Stream.
•
The Format Tablet protocol automatically includes status information in
the first byte of data.
•
Format Binary and Format Binary Stream automatically issue a Mode
Status command.