[ECOS] Dropped characters

Laurie Gellatly laurie.gellatly@netic.com
Fri Jun 1 11:56:00 GMT 2007

Hi Sergei,
We've ruled that out.
We tried a several character delay between each character on the transmit side
and still the characters are being dropped.


-----Original Message-----
From: Sergei Gavrikov [mailto:w3sg@SoftHome.net]
Sent: Friday, 1 June 2007 8:55 PM
To: Laurie Gellatly
Cc: eCos Discussion
Subject: Re: [ECOS] Dropped characters

В Птн, 01/06/2007 в 20:32 +1000, Laurie Gellatly пишет:
> Hi all,
> I'm having troubles with the UART on our 2212 board.
> Its running at 115200 (talking to a 2103) but although the characters are on
> the wire OK
> some are being dropped.
> My code checks for characters being available in eCos and when 'sufficient'
> have arrived
> they are emptied from eCos's buffer (which is MUCH larger).
> I have not been able to isolate any pattern as to why they are being
> dropped.
> Does this sound familiar to anyone?

When I did try up eCos PPP between PC and my target (LPC2294) using a
serial connection, I couldn't achive the desired results for 115,2K
baudrate. But when I turned on the XON/XOFF flow control for eCos serial
driver, that became to work just fine. Do you use any flow control on
your system?

-- Sergei

> Thanks			...Laurie:{)

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