User Manual

MR24FDB1
9
7. Description of the agreement
This protocol is used to communicate between a 24G millimetre wave sleep
detection radar and a host computer.
This protocol outlines the radar workflow, provides a brief introduction to the
interface protocol component architecture and gives the control commands
and data required for the operation of the relevant radar, with the serial
communication defined as follows.
l Interface level: TTL
l Baud rate: 9600bps
l Stop bits: 1
l Data bits: 8
l Parity: None
8. Communication commands and parameter definitions
8.1 Definition and description of the frame structure
A. Frame structure definition
Starting
Code
Length of data
Function
codes
Address
code 1
Address
code 2
Data
Check Code
0X55
Lenth_L
Lenth_H
Command
Address_1
Address_2
Data
Crc16_L
Crc16_H
1 Byte
1 Byte
1 Byte
1 Byte
1 Byte
1 Byte
n Byte
1 Byte
1 Byte
B. Description of the frame structure
a. Start code: 1 Byte, fixed to 0X55.
b. Data length: 2 Byte, low byte before, high byte after.