My COM1 Host and target machines work fine with the serial mouse hence
tested.
1>My null modem canle in 9 pin female one end and 9 pin female other
end, the help says 9 pin female one end and 25 pin female on the
other.We do not get 25 pin male slot with these new machines.Is this a
problem ? or 9 pin to 9 pin will do.
2>When I felt the cable one side was quite warm and the other was not.
Does this signal some thing ? Well this was my second cable that I
bought thinking the first one was faulty.
Any Ideas will be great help.
-----Original Message-----
From: Steve Dispensa [mailto:xxxxx@positivenetworks.net]
Sent: Tuesday, August 10, 2004 9:18 PM
To: Kernel Debugging Interest List
Subject: RE: [windbg] Unsucessfull test in Hyper terminal
haha… my bad - com1 is irq4. Sorry for the mis-information 
Other ideas? Nope. Look for a standard serial mouse and try to get it
working on that port. Try kd again only after that mouse works.
-sd
On Tue, 2004-08-10 at 09:09, Anurag Sarin wrote:
Hello Steve ,
Thanks for your response . Only irq3 was irq4 in my case.
Tried it , but no sucess ,any other ideas ?
Regards,
Anurag
-----Original Message-----
From: Steve Dispensa [mailto:xxxxx@positivenetworks.net]
Sent: Tuesday, August 10, 2004 3:36 PM
To: Kernel Debugging Interest List
Subject: Re: [windbg] Unsucessfull test in Hyper terminal
I do wish serial cables would be less difficult to get working,
especially for new folks.
- Make sure you have your com ports enabled in the bios
- don’t try to use non-legacy com ports (i.e. no usb com ports, etc)
- make sure com1 is at 3f8, irq3
- Try to get a null modem cable, 9-pin female to 9-pin female (don’t
use converters; sometimes they re-cross inside)
- Make sure the com settings really are identical - I’d test with
9600bps, 8 data bits, 1 stop bit, no parity, and no flow control.
When you actually go to modify your boot.ini, you should probably use
/baudrate:115200 or it’ll be too slow.
If none of the above work, you should try hooking up another serial
device to the ports on each box (i.e. an old mouse or something) just
to test the physical ports. Older motherboards required a ribbon
connector between the 9-pin port and the board; perhaps it’s wired up
wrong (the red strip should be by pin 1).
Good luck.
-sd
On Tue, 2004-08-10 at 04:14, Anurag Sarin wrote:
> Hi all,
> I am new to kernel debugging.
> I am trying to connect my Host and PC machines with a Null Modem
> Cable
> and via Hyperterminal. I used the folowing steps to test as per
> help.
> --------------------------------------------------------
> To test the null-modem connection
> On the host computer, click the Start button, point to
> Programs, then point to Accessories, then point to
> Communications, then click HyperTerminal. If HyperTerminal
is
> not installed, install it from the product CD-ROM using
> Add/Remove Programs from Control Panel.
>
> In the Connection Description dialog box, enter a name for
the
> new connection. (The name doesn’t matter.)
> In the Connect To dialog box, click on the Connect using
drop
> down list. Select the COM port corresponding to the port to
> which the null-modem cable is connected on this machine.
>
> Accept the defaults for the COM port properties in the next
> dialog box.
> Repeat steps 1 through 4 for the target computer.
> HyperTerminal is now open and ready for testing. Type in a
> string of characters on the host system. If the null-modem
> cable is properly installed and the correct COM ports were
> chosen within HyperTerminal on both systems, the string of
> characters typed in on the host will be displayed in the
> HyperTerminal window of the target system.
>
>
> --------------------------------------------------------------
>
> After these steps , the hyper-terminal interface says “Connected” at
> the bottom status bar. But When I type from my key board I see
nothing
> on my host nor in my target machine.
>
> I have tried all combinations with the com ports and replaced the
> Cable but no success. Any Ideas.
> Regards,
> Anurag
>
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