On Wed, Jun 08, 2005 at 01:05:52PM +0200, Oliver Endriss wrote:
> Dr. Werner Fink wrote:
> > On Tue, Jun 07, 2005 at 09:04:50PM +0200, Oliver Endriss wrote:
> > >
> > > The easiest and most robust fix would be to abort OSDSetBlock and
> > > restart from the beginning. Can we tell the firmware to abort the
> > > current bitmap transfer?
> > >
> > > We could set IRQ_STATE_EXT = TX_LEN = TX_BUFF = 0 in DATA_BMP_LOAD, if
> > > the firmware would accept that. Any comments?
> >
> > AFAIS this does not work, the firmware polls for the data
> > amount which is simply provided by the requested OSD size.
> > With 0x261d after 3 seconds a reset is done if not finished.
>
> 3 seconds is too long if we have to wait.
> We need a way to abort the current transfer.
>
> Couldn't the firmware be modified to execute timeout actions
> _immediately_ if length_received != length_expected?
With a simple change in the firmware it should be to
abort the load with TX_LEN set to 0.
Let's see what Johannes is saying about this simple
change :)
Werner
--
AC3 loop through sound card http://bitstreamout.sourceforge.net/
Howto http://www.vdr-portal.de/board/thread.php?threadid=1958
------------------------------------------------------------------
"Having a smoking section in a restaurant is like having
a peeing section in a swimming pool." -- Edward Burr
