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From: Eric Nelson <eric.nelson@boundarydevices.com>
To: u-boot@lists.denx.de
Subject: [U-Boot] [RFC PATCH 1/2] serial_mxc: return question mark for chars received with high bit set
Date: Wed, 14 May 2014 11:45:24 -0700	[thread overview]
Message-ID: <5373B9C4.4040901@boundarydevices.com> (raw)
In-Reply-To: <1400090674-10586-2-git-send-email-eric.nelson@boundarydevices.com>

Hi all,

On 05/14/2014 11:04 AM, Eric Nelson wrote:
> This patch allows testing of patch 2/2 in the series by forcing
> bytes read from the i.MX serial port to be printable.
>
> Without this, it's very hard to tell that a series of in-bound
> '\xff' characters are being produced, because they'll be
> silently ignored.
>

An even easier test is to use stty at a Linux shell:

      # stty -F /dev/ttymxc1 19200

And then enter a 'b' at 115200.

  reply	other threads:[~2014-05-14 18:45 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-05-14 18:04 [U-Boot] RFC: i.MX UART failures with baud-rate mis-match Eric Nelson
2014-05-14 18:04 ` [U-Boot] [RFC PATCH 1/2] serial_mxc: return question mark for chars received with high bit set Eric Nelson
2014-05-14 18:45   ` Eric Nelson [this message]
2014-05-14 18:04 ` [U-Boot] [RFC PATCH 2/2] serial_mxc: disable new features of autobaud detection Eric Nelson
2014-05-14 23:36   ` Fabio Estevam
2014-05-14 23:55     ` Eric Nelson

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