BRD601 THOR RS485 Usage

Hardware definition

Interface Diagram

Interface Pin Definition

Pin Number	Signal Definition
1	GND
2	485B
3	485A
4	SYNC_IN	（Logic High 1V-12V, Logic Low 0V-0.8V）

Note: (Numbers increase from left to right)

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Function corresponds to the device node

Function	Explanation	Device node
UART(485)0	Orin 485 0	/dev/ttyUART_485_0
UART(485)1	Orin 485 1	/dev/ttyUART_485_1

Usage method

Preparation

PC（Ubuntu System）

#Install
sudo apt-get install putty -y

Device

#install
sudo apt-get install putty -y

Receive-Send Test

Device

#Open putty
sudo putty

After opening Putty, configure the parameters in “Session”. Enter the device node in “Serial line” and set the speed to 115200 in “Speed”. Choose “Serial” in “Connection type”.

Configure the parameters in “Terminal”, select “Force on” in “Line discipline options”, and then click “Open” to enter the data transfer interface.

PC

Obtaining the UART device node on the PC side.

#After connecting the USB to serial module to the PC side, execute the command, and the output result is the UART device node.
 ls /dev | grep -E 'ttyUSB[0-9]+' | sort -V | tail -n 1

#Open putty
sudo putty

After opening Putty, configure the parameters in “Session”. Enter the device node in “Serial line” and set the speed to 115200 in “Speed”. Choose “Serial” in “Connection type”.

Configure the parameters in “Terminal”, select “Force on” in “Line discipline options”, and then click “Open” to enter the data transfer interface.

Use PuTTY to determine whether the send and receive operations are successful.

Observe the transmission interfaces on both the device side and the PC side. Enter any information in either interface, and if both interfaces display the same content, it means that the send and receive operations are successful.

PC

Device

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