TOPWAY

SMART LCD Command Manual

Protocol V5.04

URL:

www.topwaydisplay.com

www.topwaysz.com

Page: 17 of 19

4.4.11 STR_fill ( 0x46 )

Seq

Cmd-code / Par-data

Descriptions

1

0x46

Write string to VP_STR

2

Addr3(MSB)

he VP_STR Address = 0x00000 ~ 0x01FFFF

(each VP_STR = 128 bytes)

(address value must be divisible by 128)

3

Addr2

4

Addr1

5

Addr0(LSB)

6

Lengthh

the number of VP_STR (including the start address) to be filled

Length = 1 ~ 1024

7

Lengthl

8

data

String to write

Total no. of byte in string 128

:

:

:

:

:

‘\0’

‘\0’(0x00):string end mark

Note.

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

4.4.12 N16_write ( 0x3D )

Seq

Cmd-code / Par-data

Descriptions

1

0x3D

Write 16bit number to VP_N16

2

Addr3(MSB)

VP_N16 Address = 0x080000 ~ 0x08FFFF

(each VP_N16 = 2 byte)

(address value must be divisible by 2)

3

Addr2

4

Addr1

5

Addr0(LSB)

6

High Byte

The 16 bit value to write

7

Low Byte

Note.

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

4.4.13 N16_read ( 0x3E )

Seq

Cmd-code / Par-data

Descriptions

1

0x3E

Read 16bit number from VP_N16

2

Addr3(MSB)

VP_N16 Address = 0x080000 ~ 0x08FFFF

(each VP_N16 = 2 byte)

(address value must be divisible by 2)

3

Addr2

4

Addr1

5

Addr0(LSB)

Note.

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

Response code:

Seq.

Content

Byte in Hex

Descriptions

1

st

Header

0xAA

Communication packet header

2

nd

Command

0x3E

Command executed

3

rd

N16 value

Data1(MSB)

16 bit value

4

th

Data0(LSB)

5

th

Tail

0xCC

Communication packet tail

6

th

0x33

7

th

0xC3

8

th

0x3C

Note.

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

4.4.14 N16_fill ( 0x3F )

Seq

Cmd-code / Par-data

Descriptions

1

0x3F

Fill 16bit number to the VP_N16

2

Addr3(MSB)

VP_N16 Address = 0x080000 ~ 0x08FFFF

(each VP_N16 = 2 byte)

(address value must be divisible by 2)

3

Addr2

4

Addr1

5

Addr0(LSB)

6

Lengthh

the number of VP_N16 (including the start address) to be filled

Length = 1 ~ 32768

7

Lengthl

8

High Byte

the 16 bit value to fill

9

Low Byte

Note.

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