Search found 5 matches

by ctirad
Sat May 04, 2019 8:08 pm
Forum: TF534 (OBSOLETE)
Topic: Sales Thread (TF534 Bare Boards)
Replies: 64
Views: 6742

Re: Sales Thread (TF534 Bare Boards)

I'd like two boards if still available.
by ctirad
Sat May 04, 2019 11:52 am
Forum: HARDWARE ISSUES
Topic: FRAK/2 not working
Replies: 0
Views: 341

FRAK/2 not working

Hi. I have complete PAK68/3+Frak/1+pupla+panther2 in one of my Megas. With Frak/1, the setup worked perfectly well at 50Mhz, video card and Ethernet. The I decided to replace Frak/1 by Frak/2 and the issues started to come. My PAK (030A revision) GALs were udapted to the latest versions needed for t...
by ctirad
Mon Feb 25, 2019 2:50 pm
Forum: HARDWARE DISCUSSIONS
Topic: phantom bus accelerator & clock patch
Replies: 20
Views: 1541

Re: phantom bus accelerator & clock patch

That is something I don't understand either, the 74XX series maxes out around 12MHz I think. The SN7404N is rated up to 35MHz. The "F" is good maybe up to couple of hundreds of MHz. Maybe you could try my idea as it is simple on your machine ? I cannot. Mainly because I no more own a Falcon :( Anyw...
by ctirad
Mon Feb 25, 2019 12:00 pm
Forum: HARDWARE DISCUSSIONS
Topic: phantom bus accelerator & clock patch
Replies: 20
Views: 1541

Re: phantom bus accelerator & clock patch

Cool! Maybe you can clear up the slow buffer used for the sdma clock ? The original clock patch design (a single "slow" SN7404N with separated SDMA feed, terminated by 150pF capacitor) was not invented by me, actually. It was a 1:1 copy of the clockpatch of BSS Nemesis accelerator. I decided to use...
by ctirad
Sun Feb 24, 2019 9:23 pm
Forum: HARDWARE DISCUSSIONS
Topic: phantom bus accelerator & clock patch
Replies: 20
Views: 1541

Re: phantom bus accelerator & clock patch

Hi, Steve pointed me to this forum. I'm the Phantom accelerator author. I'm ready to answer any questions.

BTW, I already have written some historical and technical info here, but the forum kicked me to the login screen when I tried to send it and everything was lost :(