[ECOS] Serial Port , Raw Mode using cyg_io_read

[Edgar Grimberg]

Annamalai Prakash wrote:

>On Wednesday 06 July 2005 02:32 pm, you wrote:
>  
>
>>Hi,
>>
>>Did you tried to open the /dev/ser0 , /dev/ser1 ? Something like:
>>
>>err = cyg_io_lookup( "/dev/ser1", &fd );
>>    
>>
>
> yes, i tried to open ... it was opened...... but i want to make sure, whether 
>it is RAW Mode or TTY Mode.
>
>  
>
If you want raw mode, you should open /dev/ser0 and if you want tty use 
/dev/tty0 . You cand find the name of the devices in the ecos.ecc file 
of your build tree.
You can imagine some test case, something like sending an out of the 
range for tty char over the serial port and trying to read it from your 
PC. If you have a tty driver you will get nothing on the serial of the 
PC, else you will get the char. First of all, be sure that the serial on 
your Integrator works.

Edgar

>>Edgar
>>    
>>
>
>Prakash
>  
>
>>Annamalai Prakash wrote:
>>    
>>
>>>Hi List,
>>>
>>>I am working on ARM920T (Integrator) and ecos. I have configured my
>>>kernel with posix and Serial device drivers.  following options are
>>>enabled in my config file.
>>>
>>>          CYGOPT_IO_SERIAL_SUPPORT_NONBLOCKING
>>>   CYGPKG_IO_SERAIL_TTY
>>>    CYGPKG_IO_SERIAL_TTY_TTY1
>>>   CYGPKG_IO_SERIAL_DEVICES
>>>   CYGPKG_IO_SERIAL_ARM_INTEGRATOR_SERIAL1
>>>
>>>      I want to configure my serial port in RAW mode.  i think ecos
>>>supports two serial port drivers (raw and tty driver). Is there any
>>>explicit option to specify  for RAW drivers.  I tried to disable
>>>(CYGPKG_IO_SERAIL_TTY_TTY1) option, i wasnot able to read/write anything
>>>from serial port even opened successfully.
>>>
>>>      I tried to use OPEN call also. i got compilation error due to
>>>unresolved symbols `O_NDELAY' ,`B115200' ,`CLOCAL' ,`CREAD' . i have
>>>decleared terminos.h ..
>>>
>>>Any lights to move furthur..
>>>
>>>Thanks
>>>Prakash
>>>      
>>>
>
>  
>


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