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PHP: dio_tcsetattr - Manual
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dio_statdio_tcsetattr
(PHP 4 >= 4.3.0, PHP 5 <= 5.0.5)
dio_tcsetattr — Sets terminal attributes and baud rate for a serial port
说明
bool dio_tcsetattr ( resource $fd , array $options )
dio_tcsetattr() sets the terminal attributes and baud rate of the open fd .
Note: 本函数未在 Windows 平台下实现。
参数
- fd
-
The file descriptor returned by dio_open().
- options
-
The currently available options are:
-
'baud' - baud rate of the port - can be 38400,19200,9600,4800,2400,1800, 1200,600,300,200,150,134,110,75 or 50, default value is 9600.
-
'bits' - data bits - can be 8,7,6 or 5. Default value is 8.
-
'stop' - stop bits - can be 1 or 2. Default value is 1.
-
'parity' - can be 0,1 or 2. Default value is 0.
-
返回值
无返回值。
范例
Example#1 Setting the baud rate on a serial port
<?php
$fd = dio_open ( '/dev/ttyS0' , O_RDWR | O_NOCTTY | O_NONBLOCK );
dio_fcntl ( $fd , F_SETFL , O_SYNC );
dio_tcsetattr ( $fd , array(
'baud' => 9600 ,
'bits' => 8 ,
'stop' => 1 ,
'parity' => 0
));
while ( 1 ) {
$data = dio_read ( $fd , 256 );
if ( $data ) {
echo $data ;
}
}
?> BlaBla.cn
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