64kib

07/12/2018

FO 09:17 PM EclaireXL Developer: RE: SD Card

How did you get on with these? foft

FO 09:17 PM EclaireXL Developer: RE: Built in sio2usb?

When you connect it to your pc does it find a new serial device? In device manager you can see which com port it assigned, it might not be 1. foft

06/29/2018

FO 09:19 PM EclaireXL Developer: RE: Use a real floppy drive?

It might be worth starting from a simple setup. i.e. test a drive by itself as D1 without the internal sdrive. Before heading towards the full on 'n' external drives in combination with sdrive. foft

06/21/2018

FO 09:44 PM EclaireXL Bug #67: Pokey two tone timing problem

I found if I pokey 53775,11+128 on the Atari then it matches the Eclaire output. Unfortunately forcing the serious output on eclaire to 1 or 0 does not change anything. Still its something to go on! foft

06/20/2018

FO 10:03 PM EclaireXL Bug #67: Pokey two tone timing problem

So, errr identical then! Going to have to think about this one...
B is Atari, A is EclaireXL.
!http://www.64kib.com/redmine/attachments/download/82/Screenshot%20from%202018-06-20%2023-02-19.png!
foft

FO 09:57 PM EclaireXL Bug #67: Pokey two tone timing problem

Nope, seems to be some interaction with the noise filtering. I wonder if the delay also needs applying to the pulse from the timer, that then hits the noise filter. foft

FO 09:27 PM EclaireXL Bug #67: Pokey two tone timing problem

A 2 cycle delay on the reset fixes both the 4 cycle and the 9 cycle case.
Now to check this specific example! foft

FO 12:23 PM EclaireXL Developer: RE: Use a real floppy drive?

Did you get it working? foft

06/19/2018

FO 09:55 PM EclaireXL Bug #67: Pokey two tone timing problem

I was concerned that my clocks were off at first since I was running in VGA mode, but that changes vsync slightly (50Hz vs 4.86Hz) which of course also impacts audio frequency:-) Debugging in RGB mode gives a perfect match. foft

FO 09:54 PM EclaireXL Bug #67: Pokey two tone timing problem

Been measuring cases on the scope...
Confirmed the extra cycle delays described in that forum post on my 600XL. Confirmed missing on the EclaireXL implementation. foft