exxos's Atari, Amiga & retro forum

Has anyone tried my dual TOS kit and V1 STE booster in the integrated blitter type boards ?

like this one...
https://www.exxosforum.co.uk/forum/viewt ... f=41&t=569

Yep: https://www.exxosforum.co.uk/forum/viewt ... f=18&t=358

The board is this one: https://www.exxosforum.co.uk/forum/viewt ... f=41&t=516

Works fine and perfectly stable.

Thanks. Board seems to be stable at the moment, I think if the 32 MHz wire is rooted anywhere near the MMU it causes the machine to go nuts. I have already documented this behaviour with parity Simms, seems the MMU is ultrasensitive somehow.

Next time I have a separate blitter model connected up with the booster, I will experiment and see that MMU is still a sensitive as the integrated one .

Yes, I routed the clock line below the memory modules, with quite some space between it and the combo chip. But I can recall when I first tried it with me self made adaptor socket, that the hole setup was incredibly instable and in that the position of the clock line had a lot of impact. Mainly distance between RAM and combo chip were factors. It only occasionally worked at all when having the clock line high in the air, or routed above the RAM modules.

Yes the clock line bit of a nightmare.. The STE booster does seem to work fine with a separate clock. I will do some more testing with this soon. Though I am thinking it will be easier to have a oscillator on the board itself. 35MHz or thereabouts should be possible. Mission for you ;)

exxos wrote: 09 Apr 2018 14:00Mission for you

Kewl, new toys :) Good thing, I left the booster (un-)pluggable ;)

IngoQ wrote: 09 Apr 2018 14:12 Kewl, new toys :) Good thing, I left the booster (un-)pluggable ;)

Well you only need a 35MHz 5V oscillator ;) it has been tried before..

exxos wrote: 09 Apr 2018 14:15 Well you only need a 35MHz 5V oscillator ;) it has been tried before..

This alone proves to be difficult... All my usual sources come up empty for 35Mhz-Oscillators. Only Mouser has them listed, but not available.

36MHz like this one https://www.reichelt.de/Oscillators/OSZ ... FFSET=100& would be no problem...

IngoQ wrote: 09 Apr 2018 16:22
This alone proves to be difficult... All my usual sources come up empty for 35Mhz-Oscillators. Only Mouser has them listed, but not available.

36MHz like this one https://www.reichelt.de/Oscillators/OSZ ... FFSET=100& would be no problem...

36Mhz should be fine..

mouser do have some in stock..
https://www.mouser.co.uk/ProductDetail/520-TCF3500-X

Mine has an integrated Blitter, works just fine too.