Searching \ for '[ot] Generating higher bit rates than 115200 on a' in subject line. ()
Make payments with PayPal - it's fast, free and secure! Help us get a faster server
FAQ page: www.piclist.com/techref/index.htm?key=generating+higher
Search entire site for: 'Generating higher bit rates than 115200 on a'.

Exact match. Not showing close matches.
PICList Thread
'[ot] Generating higher bit rates than 115200 on a '
2000\05\11@093615 by M. Adam Davis

flavicon
face
The UART used in most IBM PC compatibles (16550) and the associated circuitry
only allow speeds up to 115,200 BPS.  You will have a very difficult time going
any higher.  Even if you had a serial port capable of going higher, you would
have to use special drivers for it, as windows assumes a 16550 or compatible,
and doesn't have the ability to set higher speeds.

Of course, you COULD use a PIC with a UART and the parallel port...

-Adam

Soren Knudsen wrote:
>
> I cant get the proggie to open my serial port at 128000/256000 baud. perhaps
> its because its not standard? can anyone rewrite it to meet the standard
> speeds as i think it could be quite usefull to me?
>
> Soren Knudsen

2000\05\11@100029 by Andrew Kunz

flavicon
face
Win98 recognizes my 230bps-capable serial port.

HyperTerm, of course, does not.

Andy










"M. Adam Davis" <spam_OUTadavisTakeThisOuTspamUBASICS.COM> on 05/11/2000 08:05:52 AM

Please respond to pic microcontroller discussion list <.....PICLISTKILLspamspam@spam@MITVMA.MIT.EDU>








To:      PICLISTspamKILLspamMITVMA.MIT.EDU

cc:      (bcc: Andrew Kunz/TDI_NOTES)



Subject: Re: [ot] Generating higher bit rates than 115200 on
         a PC








The UART used in most IBM PC compatibles (16550) and the associated circuitry
only allow speeds up to 115,200 BPS.  You will have a very difficult time going
any higher.  Even if you had a serial port capable of going higher, you would
have to use special drivers for it, as windows assumes a 16550 or compatible,
and doesn't have the ability to set higher speeds.

Of course, you COULD use a PIC with a UART and the parallel port...

-Adam

Soren Knudsen wrote:
>
> I cant get the proggie to open my serial port at 128000/256000 baud. perhaps
> its because its not standard? can anyone rewrite it to meet the standard
> speeds as i think it could be quite usefull to me?
>
> Soren Knudsen

2000\05\11@184225 by Craig Lee

flavicon
face
I've said this before, but I can say it again.

Buy one of those cheap serial cards with a 3.58 MHz colorburst crystal.
Then replace the crystal with something a bit faster.

We were using 160000 over a short distance for programming serial flash
chips.  The PC thinks it is running at a lower baud rate, thus it should
work with hyperterminal.

However, I haven't tried this under windows, only dos.

Craig

{Original Message removed}

More... (looser matching)
- Last day of these posts
- In 2000 , 2001 only
- Today
- New search...