[rk_2014_0904] Testing the serial port under Linux is working properly

I. TEST environment

PC1:WIN8, run the Serial debugging tool: Usr-tcp232-test.exe;

pc2:ubuntu14.04;

Connection between PC1 and PC2 using "USB to serial port";

USB to serial port using FT232 chip, related driver please search "ft232r usb uart" Download, with Windows and Linux under the driver. The manufacturer of the chip is FTDI.

ubuntu14.04 under the FT232 chip driver, the identification of the device name is:/dev/ttyusb0.

Two. Test Serial transceiver

1.[PC1->PC2]

In PC1, the Serial debugging tool opens the COM1 and enters in the Send area:

Hello, ubuntu14. Geneva

Then the loop is sent.

Enter in the terminal of the PC2

# cat/dev/ttyusb0

If the serial port is working properly, the PC2 terminal will continue to display:

Hello, ubuntu14. Hello, ubuntu14.  Hello, ubuntu14.  Hello, ubuntu14.          ...

2.[PC2->PC1]
Enter in the terminal of the PC2

echo "Hello, ubuntu14.04" >/dev/ttyusb0

If the serial port is working properly, the receiving area of the PC1 serial debugging assistant will display the following information:

Hello, ubuntu14. Geneva

Three. Precautions

1.USB to the serial port, the serial name in Windows may be COM4, or COM5, and so on. Look in Device Manager, ports (COM and LPT).

2. The serial port parameters at both ends should be configured consistently. If both ends are configured as: "9600,n,8,1".

[rk_2014_0904] Testing the serial port under Linux is working properly