- 19 -

www.hzgrow.com

Confirmation code=11H: fail to clear finger library;

To carry out precise matching of two finger templates

Match

Description: to carry out precise matching of templates from CharBuffer1 and CharBuffer2,

providing matching results.

Input Parameter: none

Return Parameter: Confirmation code (1 byte)，matching score.

Instuction code: 03H

Command (or instruction) package format:

2 bytes

4bytes

1 byte

2 bytes

1 byte

2 bytes

Header

Module

address

Package

identifier

Package length

Instruction code

Checksum

0xEF01

Xxxx

01H

03H

03H

07H

Acknowledge package format:

2 bytes

4bytes

1 byte

2 bytes

1 byte

2 bytes

2 bytes

Header

Module

address

Package

identifier

Package

length

Confirmation

code

Matching

score

Checksum

0xEF01 Xxxx

07H

05H

XxH

XxH

sum

Note 1: Confirmation code=00H: templates of the two buffers are matching!

Confirmation code=01H: error when receiving package;

Confirmation code=08H: templates of the two buffers aren’t matching;

2: The instruction doesn’t affect the contents of the buffers.

To search finger library

Search

Description: to search the whole finger library for the template that matches the one in CharBuffer1

or CharBuffer2. When found, PageID will be returned.

Input Parameter: BufferID, StartPage (searching start address), PageNum（searching numbers）

Return Parameter: Confirmation code (1 byte), PageID (matching templates location）

Instuction code: 04H

Command (or instruction) package format:

2 bytes 4bytes

1 byte

2 bytes

1 byte

1 byte

2 bytes

2 bytes

2 bytes

Header Module

address

Package

identifie

r

Package

length

Instructio

n code

buffer

number

Parameter

Parameter Checks

um

0xEF01 xxxx

01H

08H

04H

BufferID

StartPage

PageNum

sum

Note: BufferID of CharBuffer1 and CharBuffer2 are 1h and 2h respectively. Other values

(except 1h, 2h) would be processed as CharBuffer2.

Acknowledge package format:

2 bytes

4bytes

1 byte

2 bytes

1 byte

2 bytes

2 bytes

2 bytes

Header

Module

address

Package

identifier

Package

length

Confirmation

code

页码

得分

Checksum

0xEF01

xxxx

07H

7

xxH

PageID MatchScore

sum

Note 1: Confirmation code=00H: found the matching finer;