NAME
kissparms - Configure KISS TNCs.
SYNOPSIS
kissparms -p <port> [-f y|n] [-h hw] [-l txtail] [-r pers] [-s slot]
[-t txd] [-e feclevel] [-v] [-x]
DESCRIPTION
Kissparms is used to dynamically configure KISS TNCs that have been
setup for AX.25 use by kissattach. This program uses the packet
interface to allow it to communicate with the KISS TNC without
interrupting the AX.25 data stream. Therefore the KISS parameters may
be set at any time during the operation of the AX.25 port.
A full description of the KISS protocol can be found in the ARRL 6th
Computer Networking Conference papers pp 38-43. While use of the Tx
Tail value is now deprecated, it has been included to satisfy the
requirements of users of old TNC firmware.
Although this utility was originally designed for controlling KISS TNCs
connected to a serial port, it is used by a number of other Linux
packet radio devices such as the Z8530 SCC driver for controlling their
parameters in exactly the same manner. Therefore kissparms
functionality extends to more than KISS TNCs.
OPTIONS
-p port Sets the port that is being configured.
-f y|n This sets the TNC into either full duplex ‘‘y’’, or half
duplex ‘‘n’’ mode.
-h hardware This is used to set hardware specific parameters.
-e FEC error correction level
Sets the FEC error correction level in a DSP card based
modem (KISS parameter 8). Larger correction level means
better noise resistance, but slower throughput on a good
connection. This is an experimental feature found in a QPSK
modem for the Motorola DSP56001 based DSP4 and EVM cards
only.
-l txtail Sets the TX Tail time in milliseconds. Note that the
command to the TNC only operates in steps of ten
milliseconds, so only use values like 10, 20 etc.
-r persist Sets the persist value. This parameter is scaled to the
range 0 to 255.
-s slottime Sets the slottime in milliseconds. Note that the command to
the TNC only operates in steps of ten milliseconds, so only
use values like 10, 20 etc.
-t txdelay Sets the TX Delay in milliseconds. Note that the command to
the TNC only operates in steps of ten milliseconds, so only
use values like 10, 20 etc.
-v Display the version.
-x Takes the TNC out of KISS mode back into ‘‘normal’’ mode.
This command is manufacturer specific but works in many
cases. This option overrides all options except the port
number.
SEE ALSO
axports(5), kissattach(8).
AUTHOR
Jonathan Naylor G4KLX <g4klx@g4klx.demon.co.uk>