ZFM-70 SeriesFingerprint Identification Module
User Manual
www.zhiantec.com
Hangzhou Zhian Technologies Co.,Ltd
39
Confirmation code=11H: fail to clear finger library;
6.3.19
To carry out precise matching of two finger templates
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.
Instruction code: 03H
Command (or instruction) package format:
Header
Module address
Package
identifier
Package length
Instruction code
Checksum
2 bytes
4bytes
1 byte
2 bytes
1 byte
2 bytes
0xEF01
Xxxx
01H
03H
03H
07H
Acknowledge package format:
Header
Module
address
Package
identifier
Package
length
Confirmation
code
Matching
score
Checksum
2 bytes
4bytes
1 byte
2 bytes
1 byte
2 bytes
2 bytes
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.
6.3.20
To search finger library
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)
Instruction code: 04H
Command (or instruction) package format:
Header
Module
address
Package
identifier
Package
length
Instruction
code
buffer
number
Parameter
Parameter
Checksu
m
2 bytes
4bytes
1 byte
2 bytes
1 byte
1 byte
2 bytes
2 bytes
2 bytes
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:
Header
Module
Package
Package
Confirmation
page
score
Checksum