Register Read And Write Control; Command Format; Register Description - Ebyte E90-DTU User Manual

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8. Register read and write control

8.1 Command format

In configuration mode, supported commands are as follows（only 9600，8N1 are available）：
Command
No.
format
1 Configure register
2 Read register
3 Format error

8.2 Register description

Addres Read/
Name
s Write
Read/
00H ADDH
Write
Read/
01H ADDL
Write
Read/
02H NETID
Write
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command：C0+start address+length+parameter
Response：C1+start address+length+parameter
Example 1：set channel as 0x09
command start address
Transmit：C0 05
Return：C1 05 01
Example 2 ： set module address （ 0x1234),network address (0x00),UART(9600 8N1),air data
rate(1.2K)
Transmit：C0 00 04 12 34 00 61
Return：C1 00 04 12 34 00 61
Command：C1+start address+length
Response：C1+start address+length+parameter
Example 1: read channel
command start address
Transmit：C1 05
Return：C1 05 01
Example 2: read module address, network address, UART and air data rate
Transmit：C1 00 04
Return：C1 00 04 12 34 00 61
Response:
FF FF FF
Description
ADDH（Default 0）
ADDL（Default 0）
NETID（Default 0）
Description
length parameter
01 09
09
length parameter
01
09


E90-DTU(400SL44) User Manual
Remark
High and low byte of the module
address. Note ： When the module
address is FFFF, it can be used as
the broadcast and monitor address,
that is the module will not perform
address filtering.
Network address, used to distinguish
the network. When communicating
with each other, they should be set to
the same.
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