Re: Serial Port problem with 823e on Embedded Planet

Dear Michael,

in message [ref] you wrote:

I have an Embedded Planet with a LITE_DW Motorola 823 PPC using a HIOX
interface board. I am trying to debug a program sending out data from
ttyS1 and reading it back in on ttyS2. The latest patch has been applied

I guess you are using the SMC ports for the ttyS* ?

I want to be able to send any char over the serial link, so I've resorted to
using "raw" mode. The problem is that if an overrun occurs on the receive
side, there is nothing I can sense to indicate this situation. Has anyone
run into this problem and/or is there a solution to my dilemma?

In raw mode you're kind of lost - the SMC's don't have any  handshake
signals.

You could switch to use SCC's instead. We have a modified driver that
supports full HW handshake on all SCC's (and you  can  configure  the
number and size of I/O buffers to optimize for throughput).


Wolfgang Denk

--
Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
Phone: (+49)-8142-4596-87  Fax: (+49)-8142-4596-88  Email: wd@denx.de
A direct quote from the Boss: "We passed over a lot of good people to
get the ones we hired."

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