确认通信参数

确认RS-422/485的通信参数是uart。

"get uart"

依据此命令的应答形态是字符串，同 "set uart"的设定形式。

"(baudrate)(parity)(data bit)(stop bit)(flow control)"

参数 应答范围 说明
baudrate 1200 ~ 115200 baudrate(bps)
parity N, E, O, M or S parity bit
(N: None, E: Even, O: Odd, M: Mark, S: Space)
data bit 7 or 8 data bit
stop bit 1 or 2 stop bit
flow control N or T flow control
(N: None, T: Use RS-485)		 
<?php
include "/lib/sd_spc.php";

$sid = 14;
spc_reset();
spc_sync_baud(115200);

spc_request_dev($sid, "set uart 115200");
echo spc_request_dev($sid, "get uart"), "\r\n";   // output: 115200N81T

spc_request_dev($sid, "set uart 115200N81T");
echo spc_request_dev($sid, "get uart"), "\r\n";   // output: 115200N81T

spc_request_dev($sid, "set uart 9600E72N");
echo spc_request_dev($sid, "get uart");           // output: 9600E72N
?>