serial port via sim

[Joel Sherrill <joel@OARcorp.com>]

Pablo Casado wrote:
> Hi,
> 
> Is it possible to connect to the serial port on my linux pc from within one
> of the simulators, for example the sparc erc32?
> I am writing an xmodem module that will be used by my application but I
> don't have the board yet so I would like to test it on a simulator.

 From the README.erc32 in gdb-5.3/sim/erc32

====================================================================
The UARTs are connected to two pseudo-devices, /dev/ttypc and /dev/ttypd.
The following registers are implemeted:

- UART A RX and TX register     (0x01f800e0)
- UART B RX and TX register     (0x01f800e4)
- UART status register          (0x01f800e8)

To speed up simulation, the UARTs operate at approximately 115200 baud.
The UARTs generate interrupt 4 and 5 after each received or transmitted
character.  The error interrupt is generated if overflow occurs - other
errors cannot occure.
====================================================================

That gets the data out of the debugging.  Hopefully some
wizard here can tell us how to get it from the pseudo device
to the real hardware.  I recal a utility for doing that but
can't find it right now on google.

> cheers
> Pablo.
> 
> 


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