Aeroflex 3901 - US B T O S Eri al in T Erf Ac E (D Eb U G Co M M an D S)

AutoTest Sytem Operation
Subject to Export Control, see Cover Page for details.
5-41
USB to Serial Interface (Debug Commands)
This test provides the functionality for RS232 communication using a usb-to-serial converter. This test
provides visual results in response to tests performed.
Do not include brackets ( [ ] ) in command script.
Must run close_usb_to_serial command at the end of the test.
Test Commands
write_usb_to_serial_debug [ string ]
Writes the given string parameter to the serial port opened using open_usb_to_serial command.
Use a delay between consecutive write and read commands.
read_usb_to_serial_debug [ int 1 ]
Reads data from the serial interface. This is a non-blocking read and returns immediately if
there is no data to be read. Use a delay between consecutive write and read commands.
query_usb_to_serial_debug [ string ]
Writes the string to the RS232 interface and waits the amount of time defined by the
timeout_usb_to_serial command for a read response from the other end. The read is a blocking
read which expects a return for the written command.
Set Commands
open_usb_to_serial_debug [ int port 0 -15 ]
Opens specified serial port /dev/usb/ttyUSB0 through 15 for RS232 communication.
close_usb_to_serial_debug [ int port 0 -15 ]
Closes specified serial port /dev/usb/ttyUSB0 through 15 for RS232 communication.
reset_usb_to_serial_debug [ int 0/1 ]
Resets RS232 communication cable to CLEAR state. This command is helpful when running a
query or write command.