确认帧定界符的命令是 ifd。
"get ifd"
应答值是同如下形态的16进制的字符串形式。
[start_del [end_del]]
<?php
include "lib/sd_spc.php";
$sid = 14;
spc_reset();
spc_sync_baud(115200);
spc_request_dev($sid, "set uart 115200");
spc_request_dev($sid, "set ifd 1b01");
echo spc_request_dev($sid, "get ifd"), "\r\n"; // output: 1b01
spc_request_dev($sid, "set ifd 1b02 1b03");
echo spc_request_dev($sid, "get ifd"), "\r\n"; // output: 1b02 1b03
spc_request_dev($sid, "set ifd");
echo spc_request_dev($sid, "get ifd"), "\r\n"; // output:
?>