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Re: My first TF536
Posted: 23 Jan 2021 21:33
by Maximilian
I was looking at the CF card layout and I notices that a couple of lines weren't connected on the adapter.
It just involved adding a few wires for the bios to detect it as a faster device and that worked like a charm.
I have no more recolection of the details as it was a long time ago, probably your CF adapter and card support it and the other CF cards do not.
Re: My first TF536
Posted: 23 Jan 2021 21:36
by Lynxman
SD Cards though. MY 17 second CF boot time is probably almost as good as it gets.
Re: My first TF536
Posted: 24 Jan 2021 02:55
by Maximilian
Ah, found someone with the same issue and a writeup.
http://support.fccps.cz/download/adv/frr/cf.html
It wasn't that pio mode 4 wasn't available, it was that the DMA wasn't available.
If i'm correct the Amiga will not support DMA, so that will not help.
But it is possible that more modern cf cards expect to find DMA and not PIO mode 4 and that that may cause the problem.
Sandisk always had a tool to configure some of the cards but I haven't seen that on newer cards.
The above article goes in to that too.
Maybe getting a non DMA version of the card will work:
So not these:
https://kb.sandisk.com/app/answers/deta ... d3JTIxJTIx
Re: My first TF536
Posted: 24 Jan 2021 22:54
by Lynxman
Thanks. That might be it. The cards that take long to boot actually cause the machine to wait for many seconds before it even does the single floppy drive noise. Some 20-30 seconds.
Re: My first TF536
Posted: 02 Feb 2021 11:10
by Lynxman
I made my own relocator this morning just for fun. It uses recessed female headers for the output socket to ensure the acccelerator sits lower. The female headers sit just to the left of the Kickstart ROM with about 1 mm clearance. It turned out pretty nice for a DIY circuit board. I didn't have any single sided copper blanks so I had to use a two sided one, so the bottom copper layer is a ground plane, but it could easily be CMc-milled from single sided board. It places the IDE in a super convenient location for using a short IDE cable, though I have a long one in the photos.
Re: My first TF536
Posted: 02 Feb 2021 11:25
by dalek
Lynxman wrote: 02 Feb 2021 11:10
I made my own relocator this morning just for fun.
...
Very nice!
Re: My first TF536
Posted: 02 Feb 2021 14:40
by DoG
Sweet. I like the organic curves!
Re: My first TF536
Posted: 11 Feb 2021 15:18
by Lynxman
Today I received the RAM for my second TF536 and it works. Very cheap RAM:
https://rover.ebay.com/rover/1/711-5320 ... 2444631488