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Message
From: Matt Ettus<matt@e...>
Date: Thu Apr 12 02:43:01 CEST 2007
Subject: [oc] recent i2c questions
>
>> Am I missing something here? The only other option I can see is to
>> de-assert the OE signal when you want to send a 1, thus turning off the
>> drive and simulating an open drain, but I don't know if that works in
>> practice. Most FPGAs don't have real open-drain outputs, do they?
>>
>
> Yes, this the way to do it, it's not that hard. You drive low for a low, and
> don't drive at all for a high.
>
After further perusing the code it appears that this is done by the core
itself. It wasn't clear from the docs.
Thanks,
Matt
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