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Re: [avr-chat] Flow control with Butterfly

From: Graham Davies
Subject: Re: [avr-chat] Flow control with Butterfly
Date: Sat, 19 Mar 2005 07:11:04 -0500

Hugo González Monteverde wrote:

> [PC serial ports] should respect all [hardware] signals,
> perhaps your biggest problem would be converting levels
> of those control signals from TTL to +/- 15V

That's a very good point.  There is no MAX232 on the Butterfly.  Instead is
uses some simple and cheap circuitry that is not compliant with the
specification but usually works at modest data rates and distances.  So for
hardware flow control you'd have to add a MAX323 or more circuitry.


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