Register Description - Ebyte E90-DTU User Manual

Chengdu Ebyte Electronic Technology Co.,Ltd.
Wireless
5
configuration
6 Format error

8.2 Register description

serial Read and
number write
00H Read/Write ADDH
01H Read/Write ADDL
02H Read/Write NETID
03H Read/Write
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Directive Start Address Length parameter
Send: C2 05 01 09
Return: C1 05 01 09
Example 2: Simultaneous configuration of module address (0x1234), network address (0x00), serial port
(9600 8N1), airspeed (1.2K)
Send: C2 00 04 12 34 00 61
Return: C1 00 04 12 34 00 61
Instructions: CF CF + general instructions
Response: CF CF + regular response
Example 1: The wireless configuration channel is 0x09
Wireless Instruction Header Instruction Start Address Length parameter
Send: CF CF C0 05 01 09
Return: CF CF C1 05 01 09
Example 2: Wireless simultaneous configuration module address (0x1234), network address (0x00), serial
port (9600 8N1), airspeed (1.2K)
Send: CF CF C0 00 04 12 34 00 61
Return: CF CF C1 00 04 12 34 00 61
Format error response
FF FF FF
name
ADDH（default0）
ADDL（default0）
NETID（default0）
7 6 5
0 0 0
0 0 1
0 1 0
0 1 1
1 0 0
1 0 1
REG0 1 1 0
1 1 1
4 3 Serial check bit
0 0 8N1（default）
0 1 8O1
1 0 8E1
1 1 8N1（equate 00）
2 1 0
description
UART baud rate（bps）
baud rate is 1200
baud rate is 2400
baud rate is 4800
baud rate is 9600（default）
baud rate is 19200
baud rate is 38400
baud rate is 57600
baud rate is 115200
Air speed（bps）
E90-DTU(400SL33) User Manual
remark
Module address high byte and low byte;
Note: When the module address is equal to FFFF,
it can be used as a broadcast and listening address,
that is, the module will not perform address
filtering
network address, which is used to distinguish the
network;
When communicating with each other, it should
be set to the same.
The two modules that communicate with each
other, the serial port baud rate can be different,
and the verification method can also be different;
When transmitting large packets continuously,
users need to consider data blocking caused by the
same baud rate, and may even lose it.
It is generally recommended that the baud rate be
the same on both sides of the communication.
The serial port mode of the communication two
sides can be different;
The air speed on both sides of the communication