gracias pepes2007 por contestar:
pero el problema en que no me deja escribir en el
hay algun pequeño manual sobre el teraterm?
despues de conectar con el modem esto es lo que se ve:
MemSize: ......................... 8M
Flash detected @0xbe000000

Signature: a806


Broadcom BootLoader Version: 2.1.6d release Gnu
Build Date: Apr 29 2004
Build Time: 17:54:32

Image 1 Program Header:
Signature: a806
Control: 0005
Major Rev: 0400
Minor Rev: 04ff
Build Time: 2004/7/5 02:52:48 Z
File Length: 769695 bytes
Load Address: 80010000
Filename: ecram_sto.bin
HCS: 9966
CRC: 0994dda1


Image 2 Program Header:
Signature: a806
Control: 0005
Major Rev: 0400
Minor Rev: 04ff
Build Time: 2004/7/5 02:52:48 Z
File Length: 769695 bytes
Load Address: 80010000
Filename: ecram_sto.bin
HCS: 9966
CRC: 0994dda1



Enter '1', '2', or 'p' within 2 seconds or take default...
. .

Performing CRC on Image 2...
Detected LZMA compressed image... decompressing...
Target Address: 0x80010000
............
Decompressed length: 3145974

Executing Image 2...


eCos - hal_diag_init
Init device '/dev/ttydiag'
Init tty channel: 802e1468
Init device '/dev/tty0'
Init tty channel: 802e1488
Init device '/dev/haldiag'
HAL/diag SERIAL init
Init device '/dev/ser0'
BCM 33XX SERIAL init - dev: fffe0300.2
Set output buffer - buf: 80312b70 len: 2048
Set input buffer - buf: 80313370 len: 2048
BCM 33XX SERIAL config

Reading Permanent settings from non-vol...
Checksum for permanent settings: 0x25edd2ca
Settings were read and verified.


Reading Dynamic settings from non-vol...
Checksum for dynamic settings: 0x7e9d8c6a
Settings were read and verified.

alguna sugerencia ?
alguien sabe el siguiente paso cual es?
soldaduras, el cable me responde?

he leido bastante por ahi pero no me aclaro
gracias