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Forum: Hardware mods Today, 21:03
Replies: 3,848
Views: 335,161
Posted By plasmab
Update on the ZII ram.. Looks like its...

Update on the ZII ram..

Looks like its managing to occasionally miss a write cycle...

https://uploads.tapatalk-cdn.com/20181023/0040ab6ad90c154ab361a4bc28d7d75a.jpg
Forum: Hardware mods Today, 14:40
Replies: 3,848
Views: 335,161
Posted By plasmab
Terrible Fire Accelerators

Gayle isn’t the issue. We have 100% working Gayle with tests and around 1000 users (TF328)..

EDIT: There isn’t actually anything I need to know. It’s just whether I can do what I need to in the...
Forum: Hardware mods Today, 12:58
Replies: 3,848
Views: 335,161
Posted By plasmab
I have a new version of systest that accesses an...

I have a new version of systest that accesses an unloved hardware register when an error is detected. I can trigger the LA on access to this register and see what’s going on... more later
Forum: Hardware mods Today, 12:22
Replies: 3,848
Views: 335,161
Posted By plasmab
Terrible Fire Accelerators

The trade off here is that a handful of badly behaved programs will fail vs people not trying to solder INT2 cables onto A500s, A1000s, CDTVs!!! And A2000s... I’ll take that trade off.

If Toni...
Forum: Hardware mods Today, 11:59
Replies: 3,848
Views: 335,161
Posted By plasmab
Terrible Fire Accelerators

True. But updating interrupts that way is FUBAR...

Sniffing a write to INTENA and storing the result in the CPLD is trivial.

It’s the best I can do. If you want perfection I’m afraid it’s not...
Forum: Hardware mods Yesterday, 22:57
Replies: 3,848
Views: 335,161
Posted By plasmab
Spent the evening trying in vain to get systest...

Spent the evening trying in vain to get systest to compile.

It has a bunch of issues with the code that maybe only show up in later versions of gcc. For example it defines a bunch of variables as...
Forum: Hardware mods Yesterday, 15:28
Replies: 3,848
Views: 335,161
Posted By plasmab
Just a little thought on this. You’d have to work...

Just a little thought on this. You’d have to work very hard to get a crash with the behaviour of the TF534. First you need to have no Interrupt level 2 vector setup. Or a badly behaved one.
...
Forum: Coders. Asm / Hardware Yesterday, 14:28
Replies: 560
Views: 17,384
Posted By plasmab
x86 is not remotely close to RISC. Nor is 68K....

x86 is not remotely close to RISC. Nor is 68K. Both are prime examples of CISC.

Why don’t you two just give up. This whole thread is pointless.
Forum: Hardware mods Yesterday, 11:19
Replies: 3,848
Views: 335,161
Posted By plasmab
Terrible Fire Accelerators

I’ll patch INTENA on the final version.

I dislike how Amiga OSes assumes interrupts are off by disabling INTENA though. You should mask them off in SR if you want to be safe. Spurious interrupts...
Forum: Hardware mods Yesterday, 10:28
Replies: 3,848
Views: 335,161
Posted By plasmab
Terrible Fire Accelerators

Basically unless you patch INTREQR it’s seen as a “spurious” interrupt and ignored.

I don’t get why you thought I was letting the OS poll? I got 4-5Mb/s on stream. You’re at tape speeds polling.
Forum: Hardware mods Yesterday, 10:13
Replies: 3,848
Views: 335,161
Posted By plasmab
Terrible Fire Accelerators

INTREQR.. it’s literally 2 fast cpu clock cycles slower than INT2 per interrupt... which is sod all on context.

I also assert the IPL lines. You then need to cope with IACK.

Simply asserting...
Forum: Hardware mods Yesterday, 09:08
Replies: 3,848
Views: 335,161
Posted By plasmab
Couldn’t find it in easy apt-get-able form. Will...

Couldn’t find it in easy apt-get-able form. Will need to build from source. :/
Forum: Hardware mods Yesterday, 09:06
Replies: 3,848
Views: 335,161
Posted By plasmab
I have a few suspicions about the issue. Just...

I have a few suspicions about the issue. Just need to build the software to be able to reproduce it on the scope.
Forum: Hardware mods 21 October 2018, 22:18
Replies: 3,848
Views: 335,161
Posted By plasmab
thats useful. What diagnosics rom is that? i just...

thats useful. What diagnosics rom is that? i just need to capture the issue happening on the LA to figure out whats happening. :/
Forum: Hardware mods 21 October 2018, 20:11
Replies: 3,848
Views: 335,161
Posted By plasmab
Terrible Fire Accelerators

Yes but there are no instructions on how to build. I need to make modifications to report more info.

Viktor, is you have CDIS jumper try closing it and testing a zorro ii ram card
Forum: Hardware mods 21 October 2018, 18:33
Replies: 3,848
Views: 335,161
Posted By plasmab
Does anyone know how one builds systest. I need...

Does anyone know how one builds systest. I need to add some test bits to it.. seems to want some funny elf version of gcc. I have 3 68k gcc toolchains and they all error.
Forum: Hardware mods 21 October 2018, 17:50
Replies: 3,848
Views: 335,161
Posted By plasmab
Actually will release it when we sort this zorro...

Actually will release it when we sort this zorro ii issue. SPI is a nice to have.
Forum: Hardware mods 21 October 2018, 17:18
Replies: 3,848
Views: 335,161
Posted By plasmab
I could really do with SysTest telling me which...

I could really do with SysTest telling me which exact location is failing each time.. and what was expected and what we got instead.

EDIT: If i got through the hell of putting level shifters on...
Forum: Hardware mods 21 October 2018, 16:26
Replies: 3,848
Views: 335,161
Posted By plasmab
To to the level shifter in the CPLD you'd need 64...

To to the level shifter in the CPLD you'd need 64 (2*32 Data pins) + 42 (2*21 address) 106 spare pins. The CPLD is a 100 pin chip.

EDIT: to be fair i already wire 21+16 of those up.. so we'd need...
Forum: Hardware mods 21 October 2018, 15:58
Replies: 3,848
Views: 335,161
Posted By plasmab
The kipper card no longer shows up as defective....

The kipper card no longer shows up as defective. But it fails first round systest every time. I suspect this is because I dont give it a full S0/S1 with AS high. If I pick a small range and test it...
Forum: Hardware mods 21 October 2018, 15:55
Replies: 3,848
Views: 335,161
Posted By plasmab
I was just going to risk it and try it on the 5V...

I was just going to risk it and try it on the 5V bus TBH. There isnt any extra space needed in the CPLD for more RAM. The issue has always been chips.
Forum: Hardware mods 21 October 2018, 14:48
Replies: 3,848
Views: 335,161
Posted By plasmab
If i do a rev 3 of the 534 i'll add pins for this...

If i do a rev 3 of the 534 i'll add pins for this chip

https://www.digikey.co.uk/product-detail/en/alliance-memory-inc/AS6C1608-55TIN/1450-1116-ND/4844184
Forum: Hardware mods 21 October 2018, 14:24
Replies: 3,848
Views: 335,161
Posted By plasmab
No worries. One less thing to worry about. ...

No worries. One less thing to worry about.

I have issues with the kipper2k card and that firmware i posted earlier. But that firmware should give less picky cards a fighting chance at working.
...
Forum: Hardware mods 21 October 2018, 13:38
Replies: 3,848
Views: 335,161
Posted By plasmab
I havent got it going anywhere yet.

I havent got it going anywhere yet.
Forum: Hardware mods 21 October 2018, 09:59
Replies: 3,848
Views: 335,161
Posted By plasmab
Try this.. ...

Try this..

https://github.com/terriblefire/terriblefire-binaries/blob/master/tf534/tf534_2018_10_21_alpha.zip

It detects fastram cards that assert DTACK immediately.. sends them to the back of...
Forum: Hardware mods 21 October 2018, 02:02
Replies: 3,848
Views: 335,161
Posted By plasmab
Ok I have a plan for tackling that. But after SPI...

Ok I have a plan for tackling that. But after SPI is sorted
Forum: Hardware mods 21 October 2018, 01:44
Replies: 3,848
Views: 335,161
Posted By plasmab
It should work at 25Mhz though. :) Thanks...

It should work at 25Mhz though. :)

Thanks for the testing guys.

If you build a GFX card please build one for me and tell me what i owe you.
Forum: Hardware mods 21 October 2018, 01:35
Replies: 3,848
Views: 335,161
Posted By plasmab
You reflashed both CPLDs? Just checking.

You reflashed both CPLDs? Just checking.
Forum: Hardware mods 21 October 2018, 01:29
Replies: 3,848
Views: 335,161
Posted By plasmab
Excellent news :) There will be an upper...

Excellent news :) There will be an upper frequency limit on this approach of around 60Mhz.

Anyways thats the major limitation on people installing these things removed. Just need victor to figure...
Forum: Hardware mods 21 October 2018, 00:59
Replies: 3,848
Views: 335,161
Posted By plasmab
Interesting.. What speeds are you running the...

Interesting.. What speeds are you running the CPU? I have it working on the A2000 @ 33Mhz. But i expect some tuning needed to make it work at all frequencies.
Forum: Hardware mods 20 October 2018, 19:27
Replies: 3,848
Views: 335,161
Posted By plasmab
Alen & Victor... new binaries in the repo for you...

Alen & Victor... new binaries in the repo for you to try. particularly interested in whether it works @ 50Mhz +

Also the pullup on INT2 isnt required .. it might slow performance a little but wont...
Forum: Hardware mods 20 October 2018, 19:05
Replies: 3,848
Views: 335,161
Posted By plasmab
Ok. INT2 cable no longer needed on the TF534......

Ok. INT2 cable no longer needed on the TF534... Epic Win.

EDIT: Expect stream later after celebratory steak.
Forum: Hardware mods 19 October 2018, 21:50
Replies: 3,848
Views: 335,161
Posted By plasmab
TOS 4.04 (Falcon) vs TOS 2.06 (ST(E)) I have...

TOS 4.04 (Falcon) vs TOS 2.06 (ST(E))

I have no idea about the caches on the Falcon. But the software is very different.
Forum: Hardware mods 19 October 2018, 17:14
Replies: 3,848
Views: 335,161
Posted By plasmab
I really should write something to use the JTAG...

I really should write something to use the JTAG lines to check for shorts. I just have so many demands and so little time
Forum: support.WinUAE 19 October 2018, 16:55
Replies: 253
Views: 146,559
Posted By plasmab
:) maximise work not done

:) maximise work not done
Forum: Hardware mods 19 October 2018, 16:10
Replies: 3,848
Views: 335,161
Posted By plasmab
Terrible Fire Accelerators

Boot with DiagROM and investigate. There are early startup tests specifically for the TF530 (the LDS/UDS line tests).

I feel like a stuck record.

EDIT: what’s on the serial port when you boot...
Forum: Hardware mods 19 October 2018, 14:44
Replies: 3,848
Views: 335,161
Posted By plasmab
It may work with the TF534 code backport.

It may work with the TF534 code backport.
Forum: Hardware mods 19 October 2018, 09:18
Replies: 3,848
Views: 335,161
Posted By plasmab
The Kipper2k one doesn’t. The ones that are...

The Kipper2k one doesn’t.

The ones that are actually ZII will. But that’s not the same as the CPU socket ones. The Kipper2k one doesn’t have a DTACK line wired up and it does a refresh every...
Forum: Hardware mods 19 October 2018, 01:03
Replies: 3,848
Views: 335,161
Posted By plasmab
Yes i know you can do this.. I speak to exxosuk...

Yes i know you can do this.. I speak to exxosuk daily pretty much.

Unfortunately the location of the 68000 socket on most Atari ST(E)s is right under the keyboard and the TF530 is already a...
Forum: Hardware mods 19 October 2018, 00:06
Replies: 3,848
Views: 335,161
Posted By plasmab
You cant put the TF530 into an STE... physically....

You cant put the TF530 into an STE... physically. The STE is a PLCC 68K rather than a DIL like the STFM.
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