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Re: [gforth] problem with gforth7 and serial access

From: kibler
Subject: Re: [gforth] problem with gforth7 and serial access
Date: Thu, 22 Mar 2012 08:30:52 -0700
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I am currently looking at the entire contrib section and it seems that
the c-lib calls are in 7.0, and as such then we might only have to load
the entire contrib set to get working serial on 7.0 versions. I will try
that later today, as that seems like a do-able compromise. We would
just need to ship all of those files with our own code - an option we
already use.

Thanks Bernd for the suggested arch code - I will look at that as well,
but my minor checking says that the select code is broken, and thus
I would expect that to not work - assuming my testing is valid - not
always a good assumption to make.

On 03/22/12 08:02, Bernd Paysan wrote:
Am Donnerstag, 22. März 2012, 09:32:03 schrieb David Kuehling:
Have you had a look at contrib/serial.fs in the gforth distribution?

while this may not be the same API as you're using, porting your code
over to using it will reduce some of the headaches that come with
providing your own serial port code?
The other tested serial interface code is that in arch/r8c/terminal.fs.  What
was changed in 0.7 is that key_avail no longer uses ioctl with FIONREAD to
check, but select, because ioctl(... FIONREAD ...) breaks under some
circumstances.  Maybe, however, select breaks on serial lines.  The code in
terminal.fs uses ioctl, by having its own C binding to it.

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