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Re: [N8VEM-S100:881] S-100 Serial I/O Board Oscillator Frequency -- Incorrect?
- To: n8vem-s100@googlegroups.com
- Subject: Re: [N8VEM-S100:881] S-100 Serial I/O Board Oscillator Frequency -- Incorrect?
- From: Paul Birkel <pbi...@gmail.com>
- Date: Mon, 25 Jun 2012 04:33:40 -0400
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- In-reply-to: <000c01cd524e$b89aeca0$29d0c5e0$@vitasoft.org>
- References: <CAJj77rvNvwEbRThh6on1doCPd93OMBhSezXseCZD6n=nbxBWCw@mail.gmail.com> <000c01cd524e$b89aeca0$29d0c5e0$@vitasoft.org>
Thanks John. Would it be difficult to correct the applicable files
"for the next guy"? (Or is this one of those Easter Eggs left around
for us newbies to discover :->?)
On Sun, Jun 24, 2012 at 5:17 PM, John Monahan <mon...@vitasoft.org> wrote:
> Yes Paul
>
> From: John Monahan Ph.D
> e-mail: mon...@vitasoft.org
> Text: mon...@txt.att.net
>
>
> -----Original Message-----
> From: n8vem...@googlegroups.com [mailto:n8vem...@googlegroups.com] On
> Behalf Of Paul Birkel
> Sent: Sunday, June 24, 2012 12:10 PM
> To: n8vem...@googlegroups.com
> Subject: [N8VEM-S100:880] S-100 Serial I/O Board Oscillator Frequency --
> Incorrect?
>
> Regarding the S-100 Serial I/O board
> (http://s100computers.com/My%20System%20Pages/Serial%20IO%20Board/Serial%20I
> O%20Board.htm),
> why is the oscillator (P56) specified as 4.91*6*2 MHz Oscillator, full can,
> rather than 4.91*5*2 MHz?
>
> This drives the 85C30, and 4.9152 % 16 = 307.2 kHz ==> 19.2 kBaud.
>
> I presume that this is an overlooked typo in the schematic and parts list
> ... right?
>
> -----
> paul
>