TOPWAY

SMART LCD Command Manual

Protocol V5.04

URL:

www.topwaydisplay.com

www.topwaysz.com

Page: 8 of 19

Touch Key ID Response code ( 0x79 ):

Seq.

Content

Byte in Hex

Descriptions

1

st

Header

0xAA

Communication packet header

2

nd

Command

0x79

Touched down Key_ID defined by TOPWAY TML Graphic

Editor will be response to host

3

rd

Page_ID

Page_IDh

Page_ID = the touch key in page(16bit binary value)

4

th

Page_IDl

5

th

Y coordinate

Key_ID

Key_ID (8bit binary value)

6

th

Tail

0xCC

Communication packet tail

7

th

0x33

8

th

0xC3

9

th

0x3C

Note.

*1. The Response code with communication packet format (see Communication Packet Structure Section for details)

Touch Key VP_ADD+VP_Value Response code ( 0x77 ):

Seq.

Content

Byte in Hex

Descriptions

1

st

Header

0xAA

Communication packet header

2

nd

Command

0x77

Touch Key VP_ADD+VP_Value Response code

3

rd

VP_ADD

Addr3

MSB

VP Address

0x080000 ~ 0x08FFFF:VP_N16 Address

0x020000 ~ 0x02FFFF:VP_N32 Address

0x030000 ~ 0x03FFFF:VP_N64 Address

0x000000 ~ 0x01FFFF:VP_STR Address

4

th

Addr2

5

th

Addr1

6

th

Addr0(LSB)

7

th

Data

:

No.of byte

VP_N16: 2byte

VP_N32: 4byte

VP_N64: 8byte

VP_STR: string (with end mark (‘‘\0’(0x00)))

:

:

:

:

:

:

:

Tail

0xCC

Communication packet tail

:

0x33

:

0xC3

:

0x3C

Note.

*1. The Response code with communication packet format (see Communication Packet Structure Section for details)

4.2.5

set_sys_config ( 0xE0 )

seq

Cmd-code / Par-data

Descriptions

1

0xE0

Baud Rate and system parameter configuration

2

0x55

3

0xAA

4

0x5A

5

0xA5

6

Baud_Set

Baudrate Set:

0x00 = 1200bps

0x01 = 2400bps

0x02 = 4800bps

0x03 = 9600bps

0x04 = 19200bps

0x05 = 38400bps

0x06 = 57600bps

0x07 = 115200bps

7

sys_par1

Bit7 = 0: Touch panel function disable

Bit7 = 1: Touch panel functions enable (*3)(default)

Bit[1..0]: Touch actions configuration (*2, *3)

8

0x00

Reserved

Note.

*1. Command should be transferred in communication packet structure (see Communication Packet Structure Section for details)

*2. Touch panel configuration:

Sys_par1

Bit7

Sys_par1

Bit1

Sys_par1

Bit0

Response

To host

Descriptions

0

0

0

Null

Not touch panel functions

1

0

1

Coordinates

Touch down Coordinate will be response to host

1

1

0

Coordinates

Touch release Coordinate will be response to host

1

1

1

Key ID

Touch release Key_ID defined by TOPWAY TML Graphic Editor

will be response to host

*3. see set_touch section for response code