Description:
Driver for soundcards containing the PSA chipset from Analog Devices.
This driver allows soundcards containing the PSA chipset to be used
either as 1200 baud AFSK modem or as 9600 baud FSK modem, compatible to
the G3RUH standard. Soundcards containing this chipset currently are: Echo
Speech Corp. Personal Sound System, Cardinal DSP16 (Plus), Orchid Soundwave
32, Wearness Beethoven. Minimal hardware configuration: AT 286 (actually
the driver would run on an XT, but the card needs a 16bit slot). Support
for the ESC615 ASIC implemented, but untested due to lack of hardware.
Please success or failure reports to the author!
Command line parameters:
psadrvr [-i=<iobase>] [<filename(s)>]
| -h, -? |
description of the parameters |
| -i |
base address of the soundcard, default 0x220, alternatively 0x240,
depending on the jumper setting on the soundcard |
| filename(s) |
The DSP firmware contained in the file is loaded into (PC) memory and
is subsequently available. If no filenames are specified, then FIRM1200.DSP
and FIRM9600.DSP are loaded. These files also contain the audio parameters.
They must be generated using TPAT1200.EXE and TPAT9600.EXE./TD> |
Upgrading the DSP firmware
The DSP firmware is embedded in the TPAT1200.EXE and TPAT9600.EXE files.
If there are newer versions of these programs out, you may update the FIRM*.DSP
files by just starting both TPAT*.EXE programs. They will use the previously
stored audio settings and rewrite the FIRM*.DSP files on quit with the
new firmware version.
PTT connection
Limitations
- Calibration max. 60min. - Measurement of the TX delay of other stations
is not supported - PTT problem: PTT requires additional circuitry - After
unloading the driver, one has to reload the soundblaster emulation code
manually using the software that came with the soundcard
|