com1 connection problems \ VOGONS

com1 connection problems

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First post, by doxbos

Posted on 2009-10-01, 14:31

doxbos Offline

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Hi,

we got a very old program to operate a new machine (!). It's said that win2k, which runs on the pc nearby, is unstable. It requires win98. So I took dosbox.
The machine is connected by rs232.

When I start

1Serial1: Opening com1

Seems ok, but the program won't connect.

config:

1serial1=directserial realport:com1
2serial2=disabled
3serial3=disabled
4serial4=disabled

What's going wrong?

Reply 1 of 10, by doxbos

Posted on 2009-10-02, 05:36

doxbos Offline

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Is there any way to test the com1 connection?

I'm also unsure about the "Opening com1" message. Doesn't seem to be that meaningfull. It brings the same message if I configure com2 in dosconf (the pc actually has 2 ports).

Reply 2 of 10, by h-a-l-9000

Posted on 2009-10-02, 09:41

h-a-l-9000 Offline

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"Opening com1" is fine.

A serial port log might help. There is a build with it on my homepage (web button below).

Also, explain a bit what kind of serial connection this is and what kind of ports your computer has (built-in I guess).

1+1=10

Reply 3 of 10, by doxbos

Posted on 2009-10-02, 10:54

doxbos Offline

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That looks very promising. I will try it next week when I have access to the pc.

Both, the machine and the pc are connected by rs232 and 'yes' it's a 'built in' port.
Does this answer your questions?

Reply 4 of 10, by doxbos

Posted on 2009-10-06, 09:03

doxbos Offline

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Now I have the logs!

Reply 5 of 10, by h-a-l-9000

Posted on 2009-10-08, 14:43

h-a-l-9000 Offline

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Could you try the attached improved version? Extract it into the MB5 folder and run it.

I've found three problems in the INT14 interface.

1+1=10

Reply 6 of 10, by doxbos

Posted on 2009-10-12, 12:39

doxbos Offline

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Great! Thanks!

Today I started dosbox via the new exe you offered.

Here's the console output I received:

1DOSBox version 0.73MB5
2Copyright 2002-2009 DOSBox Team, published under GNU GPL.
3---
4CVS build compiled on Oct  4 2009 - http://home.arcor.de/h-a-l-9000
5featuring:
6  Try not to exit on unsupported fullscreen mode
7  \a bell support
8  Add the 'IMGMAKE' command (creates disk images)
9  Make vgaonly features availible to other graphics cards - see [render]
10  Add DATE and TIME commands, midnight overflow, and host time synchronization
11  NE2000 Ethernet passthrough
12  OPL chip passthrough
13  Parallel Port passthrough and Virtual Printer patch, logging enabled
14  Parallel Port data redircetion to file/device
15  Add restart capability, Win95 can shutdown DOSBox through APM
16  Serial FIFO support and logging capability enabled
17  Increase maximum resolution to 1600x1200, add lot's of highres VESA modes
18  Add back selection of video memory size - up to 8MB = 1600x1200@32bpp
19  EGA / SVGA_S3 compatibility, enable LDGFXROM
20  CGA line-by-line emulation and video memory slowdown
21  Fix text mode panning in vgaonly modes
22  DOSBox can load while the splash screen displays
23  FILES= adjustable by Kippesoep
24  CONFIG command capabilities extended - manipulate config files
25  Restart capability - ctrl+alt+POS1 or config -r [params] or FJMP F000:FFF0
26  DIR /B
27---
28CONFIG:Loading primary settings from config file dosbox.conf
29MIDI:Opened device:win32
30Capturing serlog to capture\dosbox_010.serlog.txt
31Serial1: Opening com1
32DOS keyboard layout loaded with main language code GR for layout gr
33
34Network Interface List
35-----------------------------------
36 1. rpcap://\Device\NPF_GenericDialupAdapter
37    (Network adapter 'Adapter for generic dialup and VPN capture' on local hos
38
39
40 2. rpcap://\Device\NPF_{B3C1E343-797C-4AF9-A5C8-13B804003101}
41    (Network adapter 'Intel(R) PRO/100 VM Network Connection' on local host)

Reply 7 of 10, by h-a-l-9000

Posted on 2009-10-12, 13:06

h-a-l-9000 Offline

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Well does it work?

1+1=10

Reply 8 of 10, by doxbos

Posted on 2009-10-12, 14:18

doxbos Offline

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Sorry, forgot to mention!
No, it does not.

Reply 9 of 10, by h-a-l-9000

Posted on 2009-10-12, 14:42

h-a-l-9000 Offline

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This gets difficult, then. Your software sends some data and receives some in turn. From the log I don't see a problem. Maybe the software needs to be configured differently?

Try some of the general DOSBox troubleshooting tips like loadfix or different cpu type/speed.

If that doesn't help, it would require somebody with debugging skills at your place with the hardware.

1+1=10

Reply 10 of 10, by doxbos

Posted on 2009-10-14, 11:48

doxbos Offline

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Damn!

Does it make sense to install a VM with Win98 to run the prog?
If 'yes' what' you recommend? Virtualbox or VMware?

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