NAME
baycomepp - Baycom EPP modem driver
SYNOPSIS
baycomepp [ -lknvcaz ] [-p portaddr] [-m modestr] [--epp] [--ecp]
[--eppconv] [--eppafsk] [--ifname name] [--hwaddr callsign] [--ipaddr
ipaddress] [--netmask netmask] [--broadcast broadcast]
DESCRIPTION
baycomepp is a user mode driver for the Baycom EPP modem family. It
currently supports the conventional EPP modem (using the IDT 72xxx
FIFO’s) and the FPGA (Xilinx XCS10) variant. The driver automatically
initializes the FPGA modem depending on the requested mode. In order
to keep the resident memory footprint small (approx 20kBytes plus
standard system shared libraries like libc), the initialization code is
contained in a shared library called baycomfpga_init.so . This driver
is able to automatically attach itself to the kernel network stack as a
network interface (usually called ax0). To do this it requires the
Linux Kernel MKISS driver (enable CONFIG_MKISS).
OPTIONS
baycomepp accepts the following options:
-h --help Display an overview of the available command line
parameters and exit.
-v --verbose Increases the verbosity of the output. May be
cumulated.
-p --port Specifies the base address of the EPP capable parallel
port to which the modem is connected. Use the 0x prefix to
specify hexadecimal numbers.
-m --mode Specifies various ‘‘firmware’’ options.
-n --no-daemon Do not start up in background as a daemon. Also log
received and transmitted packets to stdout.
-l --log Log to syslog.
-k --kill Kill running baycomepp daemons. Don’t start the driver
proper.
--epp Start up in EPP FSK mode. Requires the FPGA version.
--eppafsk
Start up in EPP AFSK mode. Requires the FPGA version.
--ecp Start up in ECP FSK mode. Requires the FPGA version.
--eppconv
Start up in conventional EPP FSK mode. Requires the conventional
version.
--ifname
Set the name of the interface (requires Linux 2.2.x)
--hwaddr
Set the hardware address (callsign) of the interface
--ipaddr
Set the ip address of the interface
--netmask
Set the netmask of the interface
--broadcast
Set the broadcast address of the interface
FIRMWARE OPTIONS
intclk uses FPGA internal clock; don’t use if an external oscillator is
on board.
extclk uses the external oscillator; recommended if the internal modem
is used, as the frequency of the FPGA oscillator is not accurate
enough.
intmodem
uses the internal modem
extmodem
uses a DF9IC type modem connected to the high speed modem
connector
divider=x
sets the clock divider for the internal modem
(baud=fquartz/16/divider)
loopback
sets an internal modem loopback
extstat
allows extended status readback
noextstat
disallows extended status readback
SEE ALSO
ifconfig (8), sethdlc (8),
AUTHOR
baycomepp was written by Thomas Sailer, HB9JNX/AE4WA
(sailer@ife.ee.ethz.ch).