Register Description - Ebyte E90-DTU User Manual

Chengdu Ebyte Electronic Technology Co., Ltd.
Reset command
Instruction format
C4+C4+C4

7.2 Register description

Name
Fixed 0xC0 or 0xC2, indicating that this frame data is a control
0 HEAD
1 ADDH
2 ADDL
7
0
0
1
1
5
0
0
0
0
1
1
1
1
3 SPED
2
0
0
0
0
1
1
1
1
Communication channel number
Normal mode:
When the airspeed is 1k, 5k, 10k, the channel calculation formula is: 2400
4 CHAN
+ CHAN * 1MHz;
When the airspeed is 50k or 100k, the channel calculation formula is: 2400
+ CHAN * 2MHz;
Chengdu Ebyte Electronic Technology Co., Ltd.
Copyright ©2012–2020，
Under configuration (M0=1, M1=1,) send a command (HEX format) to the module serial port:
During the reset process, the module performs self-check, and AUX outputs low level. After
resetting, AUX outputs high level and the module starts to work normally. At this point, you
can switch the mode or initiate the next instruction.
Description
command
Module address high byte (default 00H)
Module address low byte (default 00H)
6 Serial port check digit
8N1（default）
0
1
0
8N1（Equal to 00）
1
TTL Serial port rate（bps）
4 3
0 0 Serial port baud rate 1200
0 1 Serial port baud rate 4800
Serial port baud rate 9 600（default）
1 0
1 1 Serial port baud rate 19200
0 0 Serial port baud rate 57600
0 1 Serial port baud rate 115200
1 0 Serial port baud rate 460800
1 1 Serial port baud rate 921600
Wireless air rate（bps）
1 0
0 0 Air rate adaptation (continuous transmission)
0 1
1 0
Air speed 10k（default）
1 1
0 0
0 1
Air speed 1M（FLRC）
1 0
Air speed 2M（FSK）
1 1
Detailed description
C4 C4 C4, the module will generate a reset;
8O1
8E1
Air speed 1k
Air speed 5k
Air speed 50k
Air speed 100k
E90-DTU（2G4L27）User Manual
Remark
Must be 0xC0 or C2
C0: The set parameters will be saved
after power-off.
C2: The set parameters will not be
saved after power-off.
00H-FFH
00H-FFH
The serial port mode of the
communication parties can be
different
In the normal mode, the serial port
modes of the communication parties
can be different;
In continuous transmission mode, the
baud rate of both parties must be the
same;
In the air rate non-continuous
transmission mode, the serial port baud
rate has nothing to do with wireless
transmission parameters, and does not
affect the wireless transceiver
characteristics.
In the air rate continuous transmission
mode, the serial port baud rate determines
the air rate. The faster the baud rate, the
faster the transmission speed and the
closer the transmission distance.
The lower the air speed, the longer the
distance, the stronger the anti-interference
performance, and the longer the sending
time.
The air wireless transmission rate of both
parties must be the same
Default：0x13
17