|Re: [hatari-devel] fdc test for real hardware|
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On 22/09/2013 21:49, Roger Burrows wrote:
On 22 Sep 2013 at 19:32, Nicolas Pomarède wrote:
I'm improving the timings for the floppy controler and I'd like to have
some results for the attached program on real hardware (STF or STE, not
TT or Falcon).
Could someone with a working STF/STE test this program and post the
results ? I need results from different machine to measure the relation
between RPM and index duration.
On my 1040STF:
On my 1040STe:
P.S. The 1040STe is not used very often.
Thanks for your results ; are these pal or ntsc model ?
ragnar75 also sent me some ste results and like yours, they're much less
stable than the stf ones :
I don't really understand why ; my test program set SR to 2700, so I
don't think my waiting loop is delayed by some STE specific hw. This is
as if the RPM was not constant as on STF.
But anyway, 1 unit in the 2 measured values is 40 cycles, so in the end
it makes only a very small rpm variation.