Connecting hardware synthesizer to speakup without serial port.

Glenn / Lenny glennervin at cableone.net
Sun Apr 19 12:10:17 EDT 2015


I have only used a USB to serial in Windows.
But I thought that others had done it after the computer had gone through 
its initial screens.
Glenn
----- Original Message ----- 
From: "Mike Ray" <mike at raspberryvi.org>
To: <speakup at linux-speakup.org>
Sent: Sunday, April 19, 2015 11:05 AM
Subject: Re: Connecting hardware synthesizer to speakup without serial port.



No, speakup and the Apollo, or any other hardware speech-synthesiser
will not work with a USB to serial adaptor.

I believe this to be because a genuine serial port (RS232) and speakup
use the hardware hand-shaking pins (RTS and CTS?), to communicate
readiness to send and recieve data.  The USB to serial adaptors will
either not support this hardware hand-shaking or it takes a differently
written program to use it.

Mike


On 19/04/2015 16:43, Glenn / Lenny wrote:
> Hi,
> I thought that it will work with a USB to serial adapter, but you may not
> get the initial computer boot-up messages because the USB to serial driver
> would not have been loaded yet.
> Glenn
> ----- Original Message ----- 
> From: "Ĺ‚ukasz golonka" <wulfryk1 at gmail.com>
> To: <speakup at linux-speakup.org>
> Sent: Sunday, April 19, 2015 6:01 AM
> Subject: Connecting hardware synthesizer to speakup without serial port.
>
>
> Hi. I have apollo II synthetiser. I would like  to connect it to
> speakup, but i have computers without physical serial port. Usb to
> serial interfaces don't work with speakup of course. Is it possible to
> connect speakup to apollo. I've heard about possibility to connect
> external synthetiser to speakup using express card to com adapter, but
> my computer doesn't  have  physical express card port, so i must again
> use express card to usb converter.
> Thank you for help.
> Lukasz.
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> Speakup at linux-speakup.org
> http://linux-speakup.org/cgi-bin/mailman/listinfo/speakup
>
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> Speakup at linux-speakup.org
> http://linux-speakup.org/cgi-bin/mailman/listinfo/speakup
>


-- 
Michael A. Ray
Analyst/Programmer
Witley, Surrey, South-east UK

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