SFG R303A Series, User Manual, Page: 19 / 24

To empty finger library Empty
Description: to delete all the templates in the Flash library
Input Parameter: none
Return Parameter: Confirmation code (1 byte)
Instuction code: 0dH
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 0dH 0011H
Acknowledge package format:
2 bytes 4bytes 1 byte 2 bytes 1 byte 2 bytes
Header Module
address
Package
identifier
Package
length
Confirmation
code
Checksum
0xEF01 Xxxx 07H 03H xxH sum
Note: Confirmation code=00H: empty success;
Confirmation code=01H: error when receiving package;
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.
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