User Manual

Chengdu Ebyte Electronic Technology Co.,Ltd
E32-DTU User Manual
11
7.2. Parameters setting instruction
Parameters
Details
Baud rate
The serial port baud rate of radio data transmission station is 1200bps ~ 115200bps.
Parity
Support 8N1: no check. 8E1: parity check; 8O1: odd check; Both are 8 data bits and 1 stop bit.
Air rate
Wireless communication rate, also known as the air baud rate. The air speed is high, the data
transmission speed is fast, the time delay of transmitting the same data is small, but the
transmission distance will be shorter.
Power
Output power, can be external radiation power. To ensure working efficiency, you are advised
to use the maximum power. If the transmitting power is reduced, the communication distance
will be shortened and the required current will be reduced.
FEC
The equivalent receiving sensitivity can be improved by about 3dBm by means of complex
coding that allows partial correction of lost or disturbed data. Disabling this feature reduces
communication latency.
Transmission
way
Transparent transmission, what happens is what you get. Fixed point: Send data at a fixed point
according to the format.
Wake-up time
This option is not directly related to communication delay. If customers need low power
applications, adjust this option as required. In power-saving mode, the longer the wake up time,
the lower the power consumption of the receiver and the larger the communication delay.
IO driver
The default value is used. The driver mode of the internal TTL signal is selected.
DTU address
Internal address of wireless data transmission station, unrelated to Modbust address. Radio
address the same radio can communicate with each other, can use this feature to achieve
software filtering, grouping. The value ranges from 0 to 65535, in decimal notation.
Frequency
channel
It is equivalent to the working frequency of radio data transmission station. Each channel
corresponds to its different working frequency. Theoretically, different frequency channels
cannot communicate with each other. If multiple groups of radio data transmission stations exist
in the same area, the communication frequency interval of 2 to 5MHz is recommended.