Grow R503, User Manual, Page: 31 / 50

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Read product information ReadProdInfo (0x3C)
Description: Read product information
Input Parameter: none
Return Parameter: Confirmation code+ProdInfo(product information)
Instruction code: 0x3C
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 0x01 0x0003 0x3C sum
Acknowledge package format:
2 bytes 4bytes 1 byte 2 bytes 1 byte 46 byte 2 bytes
Header Module
address
Package
identifier
Package
length
Confirmation
code
Product
information
Checksu
m
0xEF01 xxxx 0x07 0x0031 X ProdInfo sum
Note 1: Confirmation code=0x00: success;
Confirmation code=0x01: error when receiving package;
Product information: store in the following order.For Numbers, the high byte comes first.For a
string, the insufficient part is 0x00.
Code Bytes Meaning
PARAM_FPM_MODEL 16 module type, ASCII
PARAM_BN 4 Module batch number, ASCII
PARAM_SN 8 Module serial number, ASCII
PARAM_HW_VER 2
For the hardware version, the first byte represents the
main version and the second byte represents the
sub-version
PARAM_FPS_MODEL 8 Sensor type, ASCII
PARAM_FPS_WIDTH 2 Sensor image width
PARAM_FPS_HEIGHT 2 Sensor image height
PARAM_TMPL_SIZE 2 Template size
PARAM_TMPL_TOTAL 2 Fingerprint database size
Soft reset SoftRst (0x3D)
Description: Send soft reset instruction to the module. If the module works normally, return
confirmation code 0x00, and then perform reset operation.
Input Parameter: none
Return Parameter: Confirmation code
Instruction code: 0x3D
Command (or instruction) package format:
2 bytes 4bytes 1 byte 2 bytes 1 byte 2 bytes