Drivers Raytek Rsb Port Devices

  
  • 1Overview
  • 2Boards
  • 3How to config RS232 or RS485 mode

The following changes since commit 4ef7675344d687a0ef5b0d7c0cee12da005870c0: Linux 4.4-rc6 (2015-12-20 16:06:09 -0800) are available in the git repository at. Realtek Gigabit Ethernet USB 3.0 Driver 10.10 Download the latest or previous versions of the Realtek RTL8153 Gigabit Ethernet 10/100/1000M USB 3.0 Drivers for Windows XP, Vista, 7, 8, 8.1 and 10.

The Android/Linux UART/serial port access from user is through the tty-devices. The tty-devices have different names depending on UART driver on different board.

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RS-485

RS-485 uses half-duplex communication, which means that one medium is shared for transmitting and receiving data.

Drivers

Therefore the system needs to control the RS-485 transceiver's transmit mode.

Usually the UART RTS signal is used to switch the transmitter on and off.

RSB4710 Borad

Drivers raytek rsb port devices inc
COM NameDevice NodeRemark
COM0 /dev/ttyS0
pull to M2 interface for BT using
COM1
/dev/ttyS4
support RS232, no flow control
COM2
/dev/ttyS2
Debug Port
COM3
/dev/ttyUSB0
support RS232
COM4 /dev/ttyUSB1
support RS232
COM5
/dev/ttyUSB2 support RS232 and RS485
COM6
/dev/ttyUSB3
support RS232 and RS485
Devices





Note :

1. Only COM4、USB2COM0、USB2COM1、USB2COM2、USB2COM3 are designed for custom using.

2. Only USB2COM2 and USB2COM3 support RSB485.

3. COM2 is designed as debug port default.

Enter U-boot interrupt mode

Connect device to debug port, and open debug console. See more : How_to_debug.

Press 'ctrl + c' key before power up the device, until get the following information on debug console :

Then you can input the following cammand to config UART mode.

Config Uart Mode

Only ttyUSB2 and ttyUSB3 support RS485 mode.

RS485 Mode:

RS232 Mode:


Drivers Raytek Rsb Port Devices Inc

Note :

The default value is RS232.

Cp210x support four port, but RSB4710 Only ttyUSB2 and ttyUSB3 support RS485 mode.

Above command 'setenv uart_mode 0x0c', 0x0c means set bit2(ttyUSB2) and bit3(ttyUSB3) to 1 (0 means to RS232; 1 means to RS485).

Rsb

Drivers Raytek Rsb Port Devices Gigabit

Drivers Raytek Rsb Port Devices

If you just want ttyUSB2 (or ttyUSB3)to be RSB485 mode, please change 0x0c to 0x04 (or 0x08).

Drivers Raytek Rsb Port Devices Download

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