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来自「The source code example of ARM9 developm」· 代码 · 共 30 行

MATRIX example program
serial.c

1.Compiler and build
execute "make" will create executable file.

2.Download to MATRIX
use ftp or USB/SD to put the executable file into MATRIX.

3.Execute example
first change file access permissions:
chmod +x serial.o
and then execute:
./serial.o

4. Example Description: 
serial port example
functions: 
matrix P1 set 19200bps, n81, RTS/CTS flow control. and echo back the received data.

What is shown in this example:
	1. How to open a serial port
	2. How to set interface
	3. How to set baudrate, flow control and other settings
	4. How to read and write a serial port

5. MATRIX's tty port:
ttyS1, ttyS2, ttyS3, ttyS4