[ECOS] Redboot output

[james chen]

Hello,

        I have port part of eCos to my test board. for convience, I download
redboot to my board use my monitor and run it in RAM. when redboot is first
running, it will output the following words, each words has double
characters. but when I input a command such as 'help', it will be ok. will
you tell me why?

      Thanks

james chen

==========================================================
RReeddBBoooott((ttmm))  ddeebbuugg  eennvviirroonnmmeenntt  --  bbuuiilltt
1111
::4400::5599,,  MMaarr    11  22000011

PPllaattffoorrmm::  AARRMM  ((AARRMM  77TTDDMMII))

CCooppyyrriigghhtt  ((CC))  22000000,,  22000011,,  RReedd  HHaatt,,
IInncc..



RRAAMM::  00xx00cc000000000000--00xx00cc77ff00000000

RReeddBBoooott>>  help
Manage machine caches
   cache [ON | OFF]
Display (hex dump) a range of memory
   dump -b <location> [-l <length>]
Execute code at a location
   go [-w <timeout>] [entry]
Help about help?
   help [<topic>]
Load a file
   load [-r] [-v] [-h <host>] [-m {TFTP | xyzMODEM}]
        [-b <base_address>] <file_name>
Reset the system
   reset
Display RedBoot version information
   version
RedBoot>