Re: CS8900A EthDrv

From: voidcoder (voidcoder_at_yahoo.com)
Date: 02/01/05 

Date: Tue, 1 Feb 2005 08:25:06 +0100

As seen from the data*** (Operation->TransmitOperation->Transmit in poll
mode
or Transmit in interrupt mode) the first opperation in transmit sequence
is "Is Tx CMD pending?". And then You have to write transmit CMD register
with a new command, and then TxLength register and wait for
RdyForTxNOW bit in the BusST register. So, there is no
"Is Tx CMD pending" step there. Is it ok? Is it possible to
write next command to TxCMD register and packet length to
TxLength register even Your previous packet is still sending?

Am asking because I tried to enable some other events
in controller (not only RxEvent as it is by default) and found
that sometimes I get TxOverrun's.

Thanks.

"Karel Danihelka [MSFT]" <KarelD@online.microsoft.com> wrote in message
news:OtSSLh8BFHA.208@TK2MSFTNGP12.phx.gbl...
> I review code one more time and I think it is correct. We are following
> data*** (see 4.10.8 in CS8900A data***).
>
> --
>
> Karel Danihelka
> ---
> Windows CE CoreOS
> This posting is provided "AS IS" with no warranties, and confers no
rights.
> ---
>
> "Karel Danihelka [MSFT]" <KarelD@online.microsoft.com> wrote in message
> news:ucyBG87BFHA.3096@TK2MSFTNGP14.phx.gbl...
> > It is used in SMDK2410 BSP, but I will review code (from first look
there
> > should be little more code in send as you suggest). But generally it
> > should work (I would expect issues on heavy traffic).
> >
> > --
> >
> > Karel Danihelka
> > ---
> > Windows CE CoreOS
> > This posting is provided "AS IS" with no warranties, and confers no
> > rights.
> > ---
> >
> > "voidcoder" <voidcoder@yahoo.com> wrote in message
> > news:eH38OS6BFHA.1260@TK2MSFTNGP12.phx.gbl...
> >> Hi. Did anybody try to use CS8900A stuff from the PUBLIC OAL library?
> >> Does it really work?
> >>
> >> There is no previous transmit pending state cheking in the
> >> CS8900ASendFrame
> >> routine
> >> as it is recommended in the CS8900A data***.
> >>
> >> Thanks.
> >>
> >>
> >
> >
>
>