Rx problems with IDMA on MPC860...

Wolfgang Denk wd at denx.de
Thu May 8 19:34:24 EST 2003


In message <3EBA0BAE.93167851 at prodys.net> you wrote:
>
>     I'm working on a MPC860T. I've been trying to receive from a
> peripheral via IDMA and it seems to work OK, but when I study data
> received from IDMA I can see that there are some bytes at the end of
> each IDMA buffer received that are wrong, in fact they haven't been
> written to the buffer and previous bytes remain; but interrupts are
> received Ok, and the number of read bytes in the peripheral are the IDMA
> set.

Are you sure you got the cache handling right?

Best regards,

Wolfgang Denk

--
Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
Phone: (+49)-8142-4596-87  Fax: (+49)-8142-4596-88  Email: wd at denx.de
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