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Re: The TF1200 Design Underway (I must be insane)

Posted: Thu Apr 29, 2021 10:00 pm
by PaulJ_2.0
Oooh now then. An AGA Vampire Slayer.

This is getting interesting.

Re: The TF1200 Design Underway (I must be insane)

Posted: Sun May 02, 2021 1:42 am
by ubermick
Needs to have RTG included just to really annoy people.

And an FPU. Obviously.

Re: The TF1200 Design Underway (I must be insane)

Posted: Sun May 02, 2021 7:32 am
by terriblefire
Haha. Well I hope to get deeper into it today

Re: The TF1200 Design Underway (I must be insane)

Posted: Tue May 04, 2021 2:51 pm
by terriblefire
Ok it's routed.

Screenshot 2021-05-04 at 14.46.59.png
Screenshot 2021-05-04 at 14.46.59.png (1.4 MiB) Viewed 6738 times

As many of you have guessed this is so that Buffee can run in an A1200. I plan to give a limited number of these away free with Buffee purchases once its all confirmed working.

Re: The TF1200 Design Underway (I must be insane)

Posted: Tue May 04, 2021 4:13 pm
by GadgetUK164
Very nice work =D I guess this (and the PiStorm) are going to shake things up!

Re: The TF1200 Design Underway (I must be insane)

Posted: Tue May 04, 2021 7:04 pm
by terriblefire
I found an appropriate image to add to the silkscreen

Screenshot 2021-05-04 at 17.05.19.png
Screenshot 2021-05-04 at 17.05.19.png (1.41 MiB) Viewed 6684 times

I was looking for a simple chip to 4 x multiply the Amiga 14Mhz clock with .... and found this...

https://www.mouser.co.uk/ProductDetail/ ... 2nrQ%3D%3D

The product code/Manufacturer ID made me choke...

Re: The TF1200 Design Underway (I must be insane)

Posted: Tue May 04, 2021 7:34 pm
by Chrissy
Fantastic, i guess i need to start to look for a connector. Or desolder the one from my apollo 8mb ram card if not 😂🤣😂

Re: The TF1200 Design Underway (I must be insane)

Posted: Tue May 04, 2021 9:07 pm
by terriblefire
Although this card is only 24 bit address bus ... remember buffee will be able to do 32 bit address space internally and *MUCH* faster. Its not like the upper 8 bits on the A1200 are connected to anything anyways.

Re: The TF1200 Design Underway (I must be insane)

Posted: Tue May 04, 2021 9:42 pm
by Maximilian
terriblefire wrote: ↑Tue May 04, 2021 7:04 pm The product code/Manufacturer ID made me choke...
Renesas had some fun with that, or they were so serious that they didn't even notice that they started with .... in the datasheet.

Nice find, the only problem is they only have 36 of them in stock and Renesas just had a fire on March 19 in one of their facilities:
https://www.renesas.com/us/en/about/pre ... ctory-fire

Count me in for the test, I'll have a recapped A1200 on standby :D

Re: The TF1200 Design Underway (I must be insane)

Posted: Tue May 04, 2021 9:45 pm
by terriblefire
Yeah i need to find a cheap 4x multiplier that has good stock first.