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Read system Parameter ReadSysPara
Description: Read Module’s status register and system basic configuration parameters;
Input Parameter
：
none
Return Parameter
：
Confirmation code (1 byte) + basic parameter
（
16bytes
）
Instruction code: 0fH
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 0fH sum
Acknowledge package format:
2 bytes 4bytes 1 byte 2 bytes 1 byte 16 bytes 2 bytes
Header Module
address
Package
identifier
Package
length
Confirmation
code
Basic parameter
list
Checksum
0xEF01 xxxx 07H 13H xxH See following
table
sum
Note: Confirmation code=00H: read complete;
Confirmation code=01H: error when receiving package;
Confirmation code=18H: error when write FLASH
Name Description Offset (word) Size (word)
Status register Contents of system status register 0 2
System identifier code Fixed value: 0x0000 1 2
Finger library size Finger library size 2 2
Security level Security level (1, 2, 3, 4, 5) 3 2
Device address 32-bit device address 4 4
Data packet size Size code (0, 1, 2, 3) 6 2
Baud settings
N (baud = 9600*N bps)
7 2
Read valid template number TempleteNum
Description: read the current valid template number of the Module
Input Parameter: none
Return Parameter: Confirmation code (1 byte)
，
template number:N
Instruction code: 1dH
Command (or instruction) package format:
Name Parameter number Content
Baud rate
4
Data range:1, 2/4/6/12,
indicates that baud rate is 9600 * N bps
Security level 5 Data range: 1, 2, 3, 4, 5
Packet content length
6
Data range: 0, 1, 2, 3 the corresponding lengths (bytes)
are as follows: 32, 64, 128, 256