DFB1 based-design clone

Discussion and support for the DSTB1 & DFB1 boosters by BadWolf..
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Badwolf
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Re: DFB1 based-design clone

Post by Badwolf »

TotO wrote: 23 May 2023 13:37 I have just received the assembled bottom side PCBs from the factory.
Cool. How do they look?

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Re: DFB1 based-design clone

Post by TotO »

Badwolf wrote: 24 May 2023 12:58Cool. How do they look?
I think it looks nice. The deep green 4-layer PCB will fit perfect into the Falcon.

The back side with the assembled parts from the factory

PC030-back.JPG

The front side that will require hand soldering and tests

PC030-top.JPG

EDIT: I have just noticed the JTAG labels are not properly aligned.
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Re: DFB1 based-design clone

Post by TotO »

The Power Core 030 assembled last week with both CPU versions! :) (thanks gerald)

Full board:

PC030-F.jpg

Motorola 68030 close-up:

PC030-M.jpg
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Re: DFB1 based-design clone

Post by Badwolf »

Good job! I certainly don't envy you having to solder that QFP 030. :)

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DFB1 Open source 50MHz 030 and TT-RAM accelerator for the Falcon
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Re: DFB1 based-design clone

Post by TotO »

Thank you. I got the help of a friend for that. Now, the CPLD is programmed. ;)
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Re: DFB1 based-design clone

Post by viking272 »

TotO wrote: 17 Jun 2023 15:41 Thank you. I got the help of a friend for that. Now, the CPLD is programmed. ;)
Hi TotO, how did you get on with your board, did it perform as expected?
What was the rationale with removing FPU from the board? Or does it somehow use the original Falcon fpu?
An observation is that this has moved the (DFB1) design towards being able to use a 68040? (with reclaiming the FPU space) :D
Were you planning a Power Core 040? :lol:
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Re: DFB1 based-design clone

Post by Steve »

viking272 wrote: 02 Sep 2025 17:40 An observation is that this has moved the (DFB1) design towards being able to use a 68040? (with reclaiming the FPU space) :D
Were you planning a Power Core 040? :lol:
His rationale behind the project is quite the opposite (explained in his first post) He wanted to make it closer to a stock falcon, but what a falcon 'could' have been at launch, ie; 32mhz 030 and 16mb ram.
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Re: DFB1 based-design clone

Post by viking272 »

Steve wrote: 02 Sep 2025 19:53
viking272 wrote: 02 Sep 2025 17:40 An observation is that this has moved the (DFB1) design towards being able to use a 68040? (with reclaiming the FPU space) :D
Were you planning a Power Core 040? :lol:
His rationale behind the project is quite the opposite (explained in his first post) He wanted to make it closer to a stock falcon, but what a falcon 'could' have been at launch, ie; 32mhz 030 and 16mb ram.
What i struggled with was removing the FPU on the board, but i realised there was a post to say the internal FPU should be usable with an extra soldered wire. @Tot0 did it all work without an issue?

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