Velleman VMA329, Руководство пользователя

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ZFM-70 SeriesFingerprint Identification Module User Manual
www.zhiantec.com Hangzhou Zhian Technologies Co.,Ltd
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End package format:
Header Module address Package identifier Package length Package content Checksum
2 bytes 4bytes 1 byte 2 bytes 1 byte 2 bytes
0xEF01 Xxxx 08H N + 2 N sum
Note 1
：
Confirmation code=00H: ready to transfer the following data packet;
Confirmation code=01H: error when receiving package;
Confirmation code=0fH: fail to transfer the following data packet;
2
：
Module shall transfer the following data packet after responding to the upper computer.
6.3.10 Download the image
Description: to download image from upper computer to Img_Buffer. Refer to 1.1.1 for more about the image
buffer.
Input Parameter: none
Return Parameter: Confirmation code (1 byte)
Instruction code: 0bH
Command (or instruction) package format:
Header Module address Package identifier Package length Instruction code Checksum
2 bytes 4bytes 1 byte 2 bytes 1 byte 2 bytes
0xEF01 Xxxx 01H 03H 0bH 000fH
Acknowledge package format:
Header Module address Package identifier Package length Confirmation code Checksum
2 bytes 4bytes 1 byte 2 bytes 1 byte 2 bytes
0xEF01 Xxxx 07H 03H xxH sum
Data Package format(data package stills will be transferred later):
Header Module address Package identifier Package length Package content Checksum
2 bytes 4bytes 1 byte 2 bytes 1 byte 2 bytes
0xEF01 Xxxx 02H N+2 N sum
End package format:
Header Module address Package identifier Package length Package content Checksum
2 bytes 4bytes 1 byte 2 bytes 1 byte 2 bytes
0xEF01 Xxxx 08H N + 2 N 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
。