[En-Nut-Discussion] IDE interface

[Richard Sloan]

Yes you do not need to support 5V only CF! Everything out there will usually 
work on both as there is a signal on the CF card to tell 3.3 or 5V

Wait signal, I never used this before.... I will need to look this one up, I 
have only read CF cards and not wrote, so maybe WAIT is only for writes?

Is there any schematics etc? I could look at and verify for you?

Richard.





>From: Harald Kipp <harald.kipp at egnite.de>
>Reply-To: "Ethernut User Chat (English)" <en-nut-discussion at egnite.de>
>To: "Ethernut User Chat (English)" <en-nut-discussion at egnite.de>
>Subject: Re: [En-Nut-Discussion] IDE interface
>Date: Thu, 12 Feb 2004 21:15:12 +0100
>
>
>>
>>Harald, now its your part :-)
>
>Sigh! I know, I know....
>
>After intensively checking interface requirements and
>drivers, I finally ended up with 74LVT16244/245 for
>both CF and IDE and a XC95144XL CPLD.
>
>Perhaps the CPLD is a bit oversized...but we do not
>know yet what might be required to handle the CF card's
>wait signal in a fancy way.
>
>Ah, yes, and I finally dropped the idea of supporting
>5V CF cards.
>
>Harald
>
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