Re: [buildcheapeeg] Digital

From: Joerg Hansmann (info_at_jhansmann.de)
Date: 2001-06-02 13:07:46

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Hi,

----- Original Message -----
From: Sajith Goonesekera <sajith_at_magix.com.sg>
To: <buildcheapeeg_at_yahoogroups.com>
Sent: Saturday, June 02, 2001 4:04 AM
Subject: [buildcheapeeg] Digital

>Hi
>
>In digital part of the RS232EEG circuit do we have to use 7.3728 MHz Cristal
>
>Or can I use 8 Mhz cristal

Theoretically yes.
However the baud-rate divider and the timing depends on 7.3728 MHz .
8 Mhz will give a timing error of 7.8% at 115200 baud.

So I can not really recommend using 8Mhz.

Regards

Joerg

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