Problem with COM1 port from with GDB 5.3 under Cygwin 1.5.3-1

Problem with COM1 port from with GDB 5.3 under Cygwin 1.5.3-1

[Creighton MacDonnell]

I upgraded my Cygwin installation two days ago (Thursday, September 4) 
to the new 1.5.3-1 version, from the previous 1.3.?-? version.

This broke a self-compiled (under the previous 1.3.?-? version of 
Cygwin) version of GDB compiled for "arm-elf" that I use.

It seems to me that GDB simply fails to communicate with the COM1 serial 
when trying to make an "RDI" (Angel Debug) connection.

I have recompiled my GNU tools with the with the new version of Cygwin, 
but I have the same problem.

I do not have any Cygwin programs handy that I can use to try to use the 
COM1 port in some other way. If someone can suggest a simple test, I 
will try it.

Can other people use the COM1 port OK with the new Cygwin?

===

Unfortunately, I did not back up my Cygwin folder before doing the 
upgrade - too trusting I guess.

Is there an archive somewhere with all of the old stuff that can be used 
to resinstall the old version?

Fortunately, I still have some of the old modules, though - enough to 
run GDB under the old Cygwin. From this I know that the problem is not 
with the target board or the serial port on my PC.

Thanks.



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Re: Problem with COM1 port from with GDB 5.3 under Cygwin 1.5.3-1

[Rolf Campbell]

Creighton MacDonnell wrote:

> Can other people use the COM1 port OK with the new Cygwin?

I did notice a difference.  Specifically, opening "COM1" no longer opens 
  the com port.  You must use "/dev/com1" now.



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Re: Problem with COM1 port from with GDB 5.3 under Cygwin 1.5.3-1

[Creighton MacDonnell]

This will not work for me either. Nor does "/dev/ttyS0".

Rolf Campbell wrote:

> I did notice a difference.  Specifically, opening "COM1" no longer 
> opens  the com port.  You must use "/dev/com1" now.





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