[uClinux-dev]problem of communicating between uClinux & uC/OS-II

[=?GB2312?B?wda35Q==?=]

2007/10/11, Erwin Authried <eauth at softsys.co.at>:
>
> Am Donnerstag, den 11.10.2007, 14:01 +0800 schrieb SIE:
> > Hi,
> >
> > We have a project that will communicate with two different OS(uClinux
> > and uC/OS-II) through UART.However,uClinux is not a real-time OS,we
> > found that it will lose some packet while receiving data from OS-II.Our
> > uClinux runs on the plantform S3C4510B,and the data is received
> > through interrupts.We think that it may be caused by that uClinux's
> > speed of handling the interrupt is not fast enough to follow OS-II.
> >
> > Does any good solution to reduce the packet-lost?
> >
> > I hope I have described my question clearly.
> >
> > Thanks.
> I don't know any details about your uart communication. If you are
> loosing characters because of uart overruns, hard- or software
> flowcontrol may be an option.


Yes,we have thought about flowcontrol.S3C4510B' s uart doesn't have a
fifo,we can only receive one byte at a time.
If we use flow control ,we have to wait until the next transfer/receive is
available.In this case , the speed will be very low which is unacceptable.


Thanks .


Regards,
> Erwin
>
>
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