Baycom epp modem with fpga configuration/diagnostics tool
eppfpga [ -vh ] [-p portaddr] [-m modestr] [-t test]
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.
eppfpga 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 0x prefix to specify hexadecimal numbers.
Specifies various ``firmware'' options.
Execute the named test. Tests may be stopped by pressing CTRL-C.
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 the test.
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.
frequency counter using the check firmware
fast DAC test using the check firmware
fast RAM test using the check firmware
LED test using the check firmware
ifconfig (8), sethdlc (8), linux/drivers/net/hamradio/baycom_epp.c
eppfpga was written by Thomas Sailer, HB9JNX/AE4WA ([email protected]).