eppfpga(8)
Baycom EPP modem with FPGA configuration/diagnostics tool
SYNOPSIS
eppfpga
[ -vh ]
[-p portaddr]
[-m modestr]
[-t test]
DESCRIPTION
eppfpga
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.
OPTIONS
eppfpga
accepts the following options:
- -h
-
Display an overview of the available command line parameters and exit.
- -v
-
Increases the verbosity of the output. May be cumulated.
- -p
-
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
-
Specifies various ``firmware'' options.
- -t
-
Execute the named test. Tests may be stopped by pressing
CTRL-C.
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
- pttmute
-
mutes modulation signal output when PTT is off (default)
- nopttmute
-
modulation signal is continuously output
TESTS
- ram
-
tests the on board SRAM using boundary scan
- bled
-
tests the on board LED's using boundary scan; disconnect PTT during
the test.
- dac
-
tests the on board DAC using boundary scan
- led
-
tests the CON and STA leds using EPP address write
- ledfast
-
tests the CON and STA leds using fast EPP address write
- berr
-
performs a BER test using the complete adapter. An external
loopback is required.
- berrv
-
performs a BER test using the complete adapter. Also prints out
the received bits. An external loopback is required.
- ccnt
-
frequency counter using the check firmware
- cdac
-
fast DAC test using the check firmware
- cram
-
fast RAM test using the check firmware
- cled
-
LED test using the check firmware
