SFG R303A Series, Руководство пользователя, Страница: 20 / 24

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;
Confirmation code=01H: error when receiving package;
Confirmation code=09H: No matching in the library (both the PageID and
matching score are 0);
2: The instruction doesn’t affect the contents of the buffers.
Other instructions
To generate a random code GetRandomCode
Description: to command the Module to generate a random number and return it to upper
computer;Refer to 4.8 for more about Random Number Generator;
Input Parameter: none
Return Parameter: Confirmation code (1 byte)
Instuction code: 14H
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 14H 0018H
Acknowledge package format:
2 bytes 4bytes 1 byte 2 bytes 1 byte 4 bytes 2 bytes
Header Module
address
Package
identifier
Package
length
Confirmation
code
Random
number
Checksum
0xEF01 xxxx 07H 07H xxH xxxx sum
Note: Confirmation code=00H: generation success;
Confirmation code=01H: error when receiving package;
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