Reply by Stef August 18, 20062006-08-18
In comp.arch.embedded,
ToF <cchristophe@gmail.com> wrote:
> bbaskaran a &#2013265929;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)
Reply by ToF August 18, 20062006-08-18
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
Reply by bbaskaran August 17, 20062006-08-17
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