* [ECOS] Do any of the ARM LPCxxxx serial functions work?
@ 2006-04-21 20:29 Brett Delmage
2006-04-24 10:16 ` [ECOS] " Daniel Néri
0 siblings, 1 reply; 2+ messages in thread
From: Brett Delmage @ 2006-04-21 20:29 UTC (permalink / raw)
To: ECOS mailing list
I wonder if anyone actually has interrupt-driven serial output working on
any of the ARM Philips LPCxxxx based targets?
I am not getting serial output to start.
The problem I see is in
ser_16x5x.c pc_serial_start_xmit()
The Philips docs state that the UART will not generate a Transmit Holding
Register Empty interrupt unless it has had at least two charcters put into
the FIFO. Then it will set the interrupt flag on the transition to empty.
However Ecos just enables the THRE interrupt, which is insufficient to
cause an initial interrupt.
Brett
--
Before posting, please read the FAQ: http://ecos.sourceware.org/fom/ecos
and search the list archive: http://ecos.sourceware.org/ml/ecos-discuss
^ permalink raw reply [flat|nested] 2+ messages in thread
* [ECOS] Re: Do any of the ARM LPCxxxx serial functions work?
2006-04-21 20:29 [ECOS] Do any of the ARM LPCxxxx serial functions work? Brett Delmage
@ 2006-04-24 10:16 ` Daniel Néri
0 siblings, 0 replies; 2+ messages in thread
From: Daniel Néri @ 2006-04-24 10:16 UTC (permalink / raw)
To: ecos-discuss
Brett Delmage <Brett.Delmage@twobikes.ottawa.on.ca> writes:
> I wonder if anyone actually has interrupt-driven serial output
> working on any of the ARM Philips LPCxxxx based targets?
>
> I am not getting serial output to start.
> The problem I see is in
> ser_16x5x.c pc_serial_start_xmit()
The "fix" mentioned in
http://sourceware.org/ml/ecos-discuss/2005-05/msg00243.html
works for me on the LPC2292.
Regards,
--
Daniel Néri <daniel.neri@sigicom.se>
Sigicom AB, Stockholm, Sweden
--
Before posting, please read the FAQ: http://ecos.sourceware.org/fom/ecos
and search the list archive: http://ecos.sourceware.org/ml/ecos-discuss
^ permalink raw reply [flat|nested] 2+ messages in thread
end of thread, other threads:[~2006-04-24 10:16 UTC | newest]
Thread overview: 2+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2006-04-21 20:29 [ECOS] Do any of the ARM LPCxxxx serial functions work? Brett Delmage
2006-04-24 10:16 ` [ECOS] " Daniel Néri
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).