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Re: TF536 Rev 2 Design Complete (all gone)
Posted: 07 May 2020 14:49
by terriblefire
agranlund wrote: 07 May 2020 14:40
I think that was it really, pretty much just IDE and the RAM location :)
As far as I know, you should be able to keep going north to cover all the memory.
At least EmuTos starts reading at 0x01000000 and just keeps going until it hits a bus error in order to figure out how much of it there is.
(A quick glance at the Atari TOS sources suggests it does the same but it's all uncommented asm so I wouldn't bet my life on it :D)
Ok.
I think this covers the basic 64Mb version ...
Code: Select all
assign ram_decode = ({A[31:24]} != {8'h01}) & ({A[31:25]} != {7'd1}) & ({A[31:26]} != {6'd1});
Which covers 0001, 001x, 01xx
Might only give 48Mb... good for a start.
agranlund wrote: 07 May 2020 14:40
I did something in bus_delay.v to get it playing nice with the Blitter but I'm guessing this is irrelevant in the new design anyway.
I think thats covered.
agranlund wrote: 07 May 2020 14:40
Oh, and Atari TOS requires the IDE IRQ in order to work, we usually solder it to pin10 of the ASCI port as it's very easy to get to.
I exposed that signal to the INT2 pad on the TF534 and ifdef'd out the Amiga INT2 related things.
But EmuTOS doesn't seem to care and I think that one will work regardless.
I don't really use Atari TOS much anymore, EmuTOS is so much better and requires less "convincing" to work with modified machines :)
Now this is kinda interesting because the TF536 can do IRQ injection and patch up accesses to anything that reports them. It'd be interesting to fix this.
Re: TF536 Rev 2 Design Complete (all gone)
Posted: 07 May 2020 17:20
by richx
Are you including support for 128MB in this firmware mentioned a few weeks ago? Happy with 64MB but would be nice to use same chips for multiple boards, I believe the pinouts are the same, just more banks. If you're already gauging interest for the next batch, I would like 2x :)
Re: TF536 Rev 2 Design Complete (all gone)
Posted: 07 May 2020 17:51
by terriblefire
richx wrote: 07 May 2020 17:20
Are you including support for 128MB in this firmware mentioned a few weeks ago? Happy with 64MB but would be nice to use same chips for multiple boards, I believe the pinouts are the same, just more banks. If you're already gauging interest for the next batch, I would like 2x :)
I'll add the firmware support but i''m not gonna test it personally.
Re: TF536 Rev 2 Design Complete (all gone)
Posted: 07 May 2020 21:01
by Subzero79
Just finish to solder
Just awaiting 2.2 rns
Re: TF536 Rev 2 Design Complete (all gone)
Posted: 08 May 2020 02:46
by Homer79
Hi, if your ordering 100 can you put me down for 5 boards please.
Regards
Re: TF536 Rev 2 Design Complete (all gone)
Posted: 08 May 2020 08:14
by AEV80
I'd like to be grab a few boards too if possible.
Re: TF536 Rev 2 Design Complete (all gone)
Posted: 08 May 2020 08:19
by PaulJ_2.0
I will take 10-20 (depending on availability of course)
Re: TF536 Rev 2 Design Complete (all gone)
Posted: 08 May 2020 08:50
by terriblefire
Ok lets keep this thread clean for issues etc and I'll start a new one for the PCB order. I'll need to work out pricing for multiples and I may need a deposit for a 10+ board order. Sound fair? If i do it this way everyone gets what they want. I'll also fix the 2 missing RNs in the assembly order this time.
Re: TF536 Rev 2 Design Complete (all gone)
Posted: 08 May 2020 08:54
by PaulJ_2.0
terriblefire wrote: 08 May 2020 08:50
I may need a deposit for a 10+ board order. Sound fair?
I doubt anyone would have a problem with that.
Re: TF536 Rev 2 Design Complete (all gone)
Posted: 08 May 2020 14:11
by Subzero79
Beetween gng and 3.3 volts i measure 1.1 ohm is normal
Removed all ics exept cpld and measures 1 ohm or is board defect?
Unsolder all parts pcb defective short beetween gnd and 3.3
@ terriblefire need a new one