Section: Linux AX.25 Utilities Manual (8)Updated: 30 March 2000Local indexUp
eppfpga - Baycom EPP modem with FPGA configuration/diagnostics tool
eppfpga[ -vh ][-p portaddr][-m modestr][-t test]
is the configuration and diagnostics utility for the Baycom EPP modem.
It can be used to download the FPGA ``firmware'' or to execute various tests.
This utility is also needed during
ifconfig bcex up
and therefore should reside in /sbin.
accepts the following options:
Display an overview of the available command line parameters and exit.
Increases the verbosity of the output. May be cumulated.
Specifies the base address of the EPP capable parallel port to which
the modem is connected. Use the
prefix to specify hexadecimal numbers.
Specifies various ``firmware'' options.
Execute the named test. Tests may be stopped by pressing
uses FPGA internal clock; don't use if an external oscillator is on board.
uses the external oscillator; recommended if the internal modem is used, as the
frequency of the FPGA oscillator is not accurate enough.
uses the internal modem
uses a DF9IC type modem connected to the high speed modem connector
sets the clock divider for the internal modem (baud=fquartz/16/divider)
sets an internal modem loopback
allows extended status readback
disallows extended status readback
mutes modulation signal output when PTT is off (default)
modulation signal is continuously output
tests the on board SRAM using boundary scan
tests the on board LED's using boundary scan; disconnect PTT during
tests the on board DAC using boundary scan
tests the CON and STA leds using EPP address write
tests the CON and STA leds using fast EPP address write
performs a BER test using the complete adapter. An external
loopback is required.
performs a BER test using the complete adapter. Also prints out
the received bits. An external loopback is required.