home *** CD-ROM | disk | FTP | other *** search
-
- FDSZ.EXE (Prototype) FOSSIL flavor of DSZ.EXE
-
- The title says it all. More or less.
-
- This version uses INT14h 0-3 subfunctions. Unfortunately these
- are the only standardized subfunctions. Almost standardized.
-
- The com port and its parameters should be set up before calling
- FDSZ. FDSZ will not initialize a Fossil driver. Why? Because
- FDSZ is meant to be called from another program, and it must leave
- the fossil port in the same mode FDSZ found it. Unfortunately
- there apparently is no way for FDSZ to check the status of the
- FOSSIL port without losing the port's current settings. So,
- FDSZ must assume the port is already properly set up for FOSSIL
- operation before it is called.
-
- If testing FDSZ "stand alone", and you are using X00, use the XU
- program to activate FOSSIL on the desired port. Note that COM1
- corresponds to port 0 on XU.
- xu port:1:on
- fdsz 2 d t
- Note that XU does not have a command to set flow control. Your
- main program should set the com port parameters.
-
- FDSZ can set the speed with the "speed" command, but this is not
- too useful because the more interesting speeds are not standardized.
- Since FDSZ is meant to be called from another program, you shouldn't
- need to use the FDSZ speed command anyway.
-
- Depending on the BIOS/FOSSIL version, FDSZ will not operate unless
- Data Set Ready (DSR) is active.
-
- FDSZ will not work well with the standard brain damaged BIOS support.
- You need to have FOSSIL or something compatible running.
-
- There is considerable overhead using the INT14h interface. Why else
- develop the Pentium?
-
- DSZ commands related to direct serial port access are not
- supported. These include the F, D, handshake, and off commands,
- (The d (lower case) command is supported.) P, S, and Y
- parameters. The port command takes a number only.
-
- Otherwise, functionality is similar to DSZ.EXE.
-
- Suggested FDSZ command line for Digiboard:
-
- fdsz 5 t -- for interactive operation
- fdsz 5 sz foo.baz
-
- The "5" is the port number. 5 is the first port on a two-port
- Digiboard PC/2E. Sending the FCC AM database from a Unix
- machine with a 115kb Comtrol RocketPort port to a Pentium with
- Digiboard I got about 220kb/sec throughput using ZMODEM
- compression. I guarantee you can't match this with an XT.
-
- Chuck Forsberg WA7KGX caf@omen.COM 503-621-3406
- Author of YMODEM, ZMODEM, Professional-YAM, ZCOMM, GSZ and DSZ
- Omen Technology Inc "The High Reliability Software"
- TeleGodzilla BBS: 503-621-3746 FAX:-3735 CIS:70007,2304
- Genie:CAF 17505-V NW Sauvie IS RD Portland OR 97231
-