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The design was actually implemented in an EPLD.

What would be a logical order for an i2c command?
Hmmmm .... start read/write stop??
That's exactly what the core does. The statemachine simply checks the start
command bit first, then data transfer, then stop.

Richard

-----Original Message-----
From: cores-bounces@o... [mailto:cores-bounces@o...] On
Behalf Of dslaman0877@y...
Sent: 21 April 2008 21:16
To: cores@o...
Subject: Re: [oc] i2c.vhd and dallas statemachine

One more question regarding this, I'm just horseing around with this 
code now, but there is something fundamental that I can't decipher by 
looking at the i2c.vhd code.

In the dallas test code, why are start conditions plus read/write plus 
the data byte all updated at the same time?  Looking at the code for 
the i2c component, it looks like one command should be set at a time: 
like send a start, then send a read or write, etc.  How does the code 
know how to take all those commands and perform the operations in the 
right order?  I know you usually only answer questions regarding the 
master i2c core, but I want to try and understand this simpler version 
first.  thanks.

----- Original Message ----- 
From: Richard Herveille<richard@h...> 
To: 
Date: Fri Apr 11 09:54:10 CEST 2008 
Subject: [oc] i2c.vhd and dallas statemachine 

> The design was actually implemented in an EPLD. 
> With some additional logic to display the temperature on some 
> 7segment 
> displays. 
> Richard 
> -----Original Message----- 
> From: cores-bounces at opencores.org [mailto:cores-bounces at 
> opencores.org] On 
> Behalf Of dslaman0877 at yahoo.com 
> Sent: 10 April 2008 19:39 
> To: cores at opencores.org 
> Subject: [oc] i2c.vhd and dallas statemachine 
> Out of curiosity, was this thing synthesized on chip and tested, or 
> was 
> this just a simulated design to help design the wishbone i2c master 
> core? 
> _______________________________________________ 
> http://www.opencores.org/mailman/listinfo/cores 
> 
> 
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