• Introduction
• Dimension
• Schematic
• Layout
• How to use
  • Commands
  • Settings
    • Communication parameter
    • Modem line signal
    • Counter values
    • Inter frame gap
    • Inter frame delimiter
    • Serial Transmission delay
    • Sending break signal
  • Getting status
    • Communication Parameter
    • Modem line signal
    • Counter values
    • Inter frame gap
    • Inter frame delimiter
    • Transmission delay
    • Received data size
    • Size of receive buffer
    • Free space in send buffer
    • Size of send buffer
  • Receiving data
  • Sending data

Sending Break Signal

The command to transmit the break signal is break.

"set break (time)"

Specify break time to time.

The break time can be set in bits or microseconds. When setting in bit units, you only need to enter the value, but when setting in microseconds, you must put "us" after the value. The available setting value is from 10 bits to 60 seconds.

※ Note: The actual break time may be longer than the specified time when system is busy.

• an example of sending break signal

<?php
include "/lib/sd_spc.php";

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

spc_request_dev($sid, "set break 10");         // sending break: 10bits duration

sleep(1);

spc_request_dev($sid, "set break 1000000us");  // sending break: 1 second
?>