5-14 Syntax and Parameters
2325 Reference Guide Revision B 2325A137REFGD
tendency with the O6 option is for files to be overwritten, because times
usually do not match exactly.
The O3 setting is unique in that it causes the transferred file (binary or
ASCII) to be appended to the end of the old file rather than overwriting
it.
With Zmodem, the O option can be used with the C option setting for
crash recovery. If you specify C2 (follow sender) on the command line,
then the receiver will use the sender’s crash and overwrite options. Any
options local to the receiver will be ignored.
Q
Quiet Mode
This option toggles quiet mode. When quiet mode is enabled, minimal
information is displayed about the file transfer in progress. Generally,
only the name of the file being transmitted is displayed. When not in
quiet mode, XFER will display a copyright message, the filename, and
file statistics, including a running count of bytes.
Running XFER in quiet mode on the 2325 can have serious
consequences for serial-transfer performance, especially at high speeds.
At 115200 baud, transfers are four times faster if quiet mode is enabled
on the 2325 than if it is disabled, owing to the delay inherent to writing a
running byte count to the screen.
Since the Q option is a toggle switch, each occurrence of it in the
command line inverts the quiet-mode state. By default, XFER has quiet
mode off. The first occurrence of the Q option turns quiet mode on, the
next turns it back off, and so on. This is most useful if the option is
specified in the XFER_ARGS environment variable to activate quiet
mode by default but you wish to deactivate quiet mode for the current
transfer session.
