TF536 to 68000 switch

68030 + SDRAM + IDE

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simon_m74
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TF536 to 68000 switch

Post by simon_m74 »

odd question.
As the CD A570 will not boot with the TF536. Is it possible to put a 68000 in there as well (on a custom PCB - to have 68000 & TF board) and switch between the 2, by switching gnd and power between the CPUS ?
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derkom
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Re: TF536 to 68000 switch

Post by derkom »

It takes a bit more than GND and VCC. There's a switcher called "garlic" that will do what you need, posted here.

Edit: Although now that I reread your post, it sounds like maybe you're wanting to switch CPUs on-the-fly, i.e. after booting the 68000? That is not possible.
amimjf
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Re: TF536 to 68000 switch

Post by amimjf »

Hi,

Have you considered patching the A570 extended ROM so it works with the TF536 ?, see..

https://cdtvland.com/os235/
https://github.com/C4ptFuture/cdtv-os235patch
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alexh
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Re: TF536 to 68000 switch

Post by alexh »

This is definitely a software issue and not a hardware issue. Try the alpha version (98-114-a570) of Extended ROM v2.35 for A570 and it should solve your issues.

The A570 version is AFAIK only available on the Discord channel.
Principal ASIC Engineer - SystemVerilog, VHDL
Thalion Webshrine - http://thalion.atari.org
STf,STfm,STe,MegaST,MegaSTe,Falcon060
A500+,A600,A4000/060,CD32,CDTV
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8 Bit Dreams
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Re: TF536 to 68000 switch

Post by 8 Bit Dreams »

A570 ROMs wasn't released yet, please be patient :idea:
Retro computer hardware & repair in Germany
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alexh
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Re: TF536 to 68000 switch

Post by alexh »

If you want to test it you can request to join the Discord and the alpha version is available for download.
Principal ASIC Engineer - SystemVerilog, VHDL
Thalion Webshrine - http://thalion.atari.org
STf,STfm,STe,MegaST,MegaSTe,Falcon060
A500+,A600,A4000/060,CD32,CDTV
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