Re: [hatari-devel] HD floppy timing

[Laurent Sallafranque <laurent.sallafranque@xxxxxxx>]

Le 11/06/2016 11:00, Nicolas Pomarède a écrit :
> Le 11/06/2016 à 01:46, Roger Burrows a écrit :
>
> > OK, here are the results:
> > machine=falcon (8MHz) : 300 rpm for both DD & HD
> > machine=falcon (16MHz & 32MHz) : 600 rpm for both DD & HD
> > machine=tt (8MHz): 300 rpm for both DD & HD
> > machine=tt (16 MHz & 32MHz): 601 rpm for both DD & HD
>
> Hi
>
> are those tests under Hatari or under real HW ? (I'm not sure a falcon 
> can be set to 8 MHz)

> are those tests under Hatari or under real HW ? (I'm not sure a 
falcon can be set to 8 MHz)

Yes, a falcon can be set to 8 Mhz (by setting the correct value at 
address $FFFF8007)

$FF8007|byte |Falcon Bus Control                    BIT 5 . . 2 . 0|R/W 
(F030)
       |     |STe Bus Emulation (0 - on) ---------------'     |   ||
       |     |Blitter (0 - 8mhz, 1 - 16mhz) ------------------'   ||
       |     |68030 (0 - 8mhz, 1 - 16mhz) ------------------------'|
-------+-----+-----------------------------------------------------+----------

Laurent