exxos blog - random goings on

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exxos
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Re: exxos blog - random goings on

Post by exxos »

Ta'daaaa!

H4 with TOS206 :thumbup:

Whos dumbass idea was it to put the ROM jumper under the PSU! :roll:

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PhilC
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Re: exxos blog - random goings on

Post by PhilC »

Your H4 needs a better name.
If it ain't broke, test it to Destruction.
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Re: exxos blog - random goings on

Post by exxos »

Working on the booster part now..

Was supposed to be this...

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but ended up like this...

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.. Basically because there was one bent pin, and by the time I got the CPU out of the socket.. Broke the socket.. Ended up with more bent pins... Ripped a couple of tracks up on the PCB... I ended up just stacking sockets and putting my ZIF adapter in as had enough of those DIP's!

So we ended up with this...

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And later on this...

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I don't know if this will work with ultrasatan... I really cannot be bothered at this point to start messing around with it all... I do not expect there to be any issues but you never know with all this stuff :roll:


Anyway, the blitter test has just finished..

IMG_5120.JPG

A accelerator like the terrible fire ones can be plugged into this board.. The board is just used as a TOS206 decoder. of course with correct firmware on the terrible fire boards, the effective ROM speed can be up to 32MHz.
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exxos
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Re: exxos blog - random goings on

Post by exxos »

So the booster is been a bit of a pain, I don't know why :roll: It is very hit and miss if turning on the computer boots up, I did think at first this could be a wake up state issue, but pressing reset several times generally lets it boot up..

And not really sure why this is happening yet. It is possible it is because I had to scrimp on IO pins on the PLD as I didn't have enough pins for a RESET signal to it :( But even so I don't really know why this would be a problem anyway.
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exxos
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Re: exxos blog - random goings on

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Nothing seems to be wrong with anything. Through the CPU clock is pretty bad which I think isn't helping. So buffer and other bits added in... will "retire" the current boards to TOS206 only boards while the waiting on the new boards....
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Re: exxos blog - random goings on

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Started to test out some 68B50's for my store.. Socket broke after just 4 chip changes :roll:

Have to go hunting to see if I can find some turnpin sockets now...

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Re: exxos blog - random goings on

Post by exxos »

:cry: :cry: :cry:

Where's Atari.. I need to sue um!

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JezC
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Re: exxos blog - random goings on

Post by JezC »

Are you trying to steal a job from @rubber_jonnie ? :D
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Re: exxos blog - random goings on

Post by rubber_jonnie »

Oooo, owie,
Collector of many retro things!
800XL and 65XE both with Ultimate1MB,VBXL/XE & PokeyMax, SIDE3, SDrive Max, 2x 1010 cassette, 2x 1050 one with Happy mod, 3x 2600 Jr, 7800 and Lynx II
Approx 20 STs, including a 520 STM, 520 STFMs, 3x Mega ST, MSTE & 2x 32 Mhz boosted STEs
Plus the rest, totalling around 50 machines including a QL, 3x BBC Model B, Electron, Spectrums, ZX81 etc...
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Re: exxos blog - random goings on

Post by JezC »

Yes, nasty!
:awwww:

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