SFG R303A Series, User Manual, Page: 15 / 24

address identifier length code
0xEF01 Xxxx 07H 03H xxH sum
Note: 1
：
Confirmation code=00H: ready to transfer the following data packet;
Confirmation code=01H: error when receiving package;
Confirmation code=0eH: fail to transfer the following data packet;
2
：
Module shall transfer the following data packet after responding to the upper computer.
Data package length must be 64, 128, or 256
。
To generate character file from image Img2Tz
Description: to generate character file from the original finger image in ImageBuffer and
store the file in CharBuffer1 or CharBuffer2.
Input Parameter: BufferID (character file buffer number)
Return Parameter: Confirmation code (1 byte)
Instuction code: 02H
Command (or instruction) package format:
2 bytes 4bytes 1 byte 2 bytes 1 byte 1 byte 2 bytes
Header Module
address
Package
identifier
Package
length
Instruction
code
Buffer
number
Checksum
0xEF01 xxxx 01H 04H 02H BufferID 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
Header Module
address
Package
identifier
Package length Confirmation
code
Checksum
0xEF01 xxxx 07H 03H XxH sum
Note: Confirmation code=00H: generate character file complete;
Confirmation code=01H: error when receiving package;
Confirmation code=06H: fail to generate character file due to the over-disorderly
fingerprint image;
Confirmation code=07H: fail to generate character file due to lackness of character
point or over-smallness of fingerprint image;
Confirmation code=15H: fail to generate the image for the lackness of valid primary
image;
To generate template RegModel
Description: To combine information of character files from CharBuffer1 and CharBuffer2 and
generate a template which is stroed back in both CharBuffer1 and CharBuffer2.
Input Parameter
：
none
Return Parameter
：
Confirmation code (1 byte)
Instuction code: 05H
Command (or instruction) package format:
2 bytes 4bytes 1 byte 2 bytes 1 byte 2 bytes
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