[Gambas-user] Issue/Problem with Serial Port Component

[nando]

I use the Serial Port Control.
I never considered OPENing the device.

I do have the code working with the LOF() minus one
to force another event after.  It works 100% this way :)

-Fernando


---------- Original Message -----------
From: Benoit Minisini <gambas at ...1...>
To: nando_f at ...951..., mailing list for gambas users
<gambas-user at lists.sourceforge.net>
Sent: Mon, 5 Jun 2006 23:32:41 +0200
Subject: Re: [Gambas-user] Issue/Problem with Serial Port Component

> On Sunday 04 June 2006 23:52, nando wrote:
> > I have tested this for hours...
> >
> > PUBLIC SPortReceiveString AS STRING
> >
> > SUB SPort_Read()
> >
> >   DIM s AS STRING
> >   DIM ls AS INTEGER
> >
> >   ls = LOF(SPort)
> >   'IF ls > 1 THEN DEC ls   '<---always read 1 less than what LOF offers
> >
> >   READ # SPort, s, ls
> >
> >   PRINT s  '<--help to debug
> >
> >   SPortReceiveString = SPortReceiveString & s  'accumulate input
> >
> >   'There is some testing of SPortReceiveString here
> >
> > END
> >
> > Comments:
> > Serial Port data received is in groups of about 120 bytes every 10 minutes.
> > Every READ event is a small bunch of characters received.
> >
> > I have found out that it consistently happens that
> > the during the SPort_Read event of the second last bunch of chars,
> > there are more data being receive by the kernel or SPort control
> > but an event will not happen.
> >
> > If I unREM the REMed line...
> >
> >   IF ls > 1 THEN DEC ls   '<---always read 1 less than what LOF offers
> >
> > then it works perfect every time.
> > An event will happen for the very past burst of serial data in.
> >
> > -Fernando
> >
> 
> Do you use the SerialPort control or a device opened with OPEN ... FOR 
> READ ?
> 
> The first one use code written by Daniel Campos to read the data from 
> the serial port, and the second code written by me. I don't know why,
>  but there aren't the same...
> 
> Regards,
> 
> -- 
> Benoit Minisini
> 
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------- End of Original Message -------