In comp.arch.embedded,
ToF <cchristophe@gmail.com> wrote:
> bbaskaran a &#4294967295;crit :
>>
>> I am using ARM9 based ATMEL AT91RM9200 microcontoller for a
>> communication project. I am using a custom designed PCB.
>> Problem is when i am receiving data via serial port, sometimes
>> the controller got hang up. Need to restart every time. I am
>> using RS485 communication and receive data via ttyS3 port.
>> Presently i am receiving data in non-cannonical mode.
>> controller have the time out value of 120microseconds for
>> every byte. Someone can tell me how to handle timer and signal
>> handlers.
>
> I suggest you to go on : http://www.at91.com/
>
> This is the web site of the Atmel ARM support group.

That is an option, but I would suggest to him to ask a better
question here instead.

The AT91RM9200 has no ttyS3, non-canonical mode, or timer and signal
handlers. It only has USART0/1/2 and DBGU. So I suspect these terms
come from some sort of operating system he is using, which might be
linux. There is a good chance that the problem is in this unknown
software environment rather than in the hardware.


-- 
Stef    (remove caps, dashes and .invalid from e-mail address to reply by mail)

Hi bbaskaran,

I suggest you to go on : http://www.at91.com/

This is the web site of the Atmel ARM support group.

Regards,

ToF




bbaskaran a =E9crit :

> Dear All,
>
> I am using ARM9 based ATMEL AT91RM9200 microcontoller for a
> communication project. I
>
> am using a custom designed PCB. Problem is when i am receiving data via
> serial port, some
>
> times the controller got hang up. Need to restart every time. I am
> using RS485
>
> communication and receive data via ttyS3 port. Presently i am receiving
> data
>
> in non-cannonical mode. controller have the time out value of
> 120microseconds for every byte.
>
> Someone can tell me how to handle timer and signal handlers.
>=20
> Thanks in Advance,
>=20
> Regards,
>=20
> Baaski

Dear All,

I am using ARM9 based ATMEL AT91RM9200 microcontoller for a
communication project. I

am using a custom designed PCB. Problem is when i am receiving data via
serial port, some

times the controller got hang up. Need to restart every time. I am
using RS485

communication and receive data via ttyS3 port. Presently i am receiving
data

in non-cannonical mode. controller have the time out value of
120microseconds for every byte.

Someone can tell me how to handle timer and signal handlers.

Thanks in Advance,

Regards,

Baaski