Terrible Fire Accelerators - Page 95

plasmab · 29 August 2017, 18:26

Ok. @alenpcc & @EzdineG I'm confused by the messages here. Lets see if i can summarize.

1. Alliance RAM works?
2. ISSI RAM Fails the systest tests if A21 is connected?
3. ISSI RAM Passes the systest tests if A21 track is cut?
4. ISSI RAM with Frontier crashes even if A21 is cut?

*By A21 Cut i mean the line to PIN 25 of the RAM Chips on the TF530 Rev 3.

EzdineG · 29 August 2017, 18:28

Quote:

Originally Posted by plasmab

Ok. @alenpcc & @EzdineG I'm confused by the messages here. Lets see if i can summarize.

1. Alliance RAM works?
2. ISSI RAM Fails the systest tests if A21 is connected?
3. ISSI RAM Passes the systest tests if A21 track is cut?
4. ISSI RAM with Frontier crashes even if A21 is cut?

*By A21 Cut i mean the line to PIN 25 of the RAM Chips on the TF530 Rev 3.

1. Yes
2. Yes
3. Yes (also the case if not cut but w/ sparkle firmware.)
4. Yes

Edit: I just desoldered said pin from each chip on Rev 3. Never actually cut the trace.

alenppc · 29 August 2017, 18:29

The answer is Yes to all these points.

4. Not just frontier, also other games crash after a while (e.g. Superfrog).

plasmab · 30 August 2017, 15:39

Quote:

Originally Posted by alenppc

The answer is Yes to all these points.

4. Not just frontier, also other games crash after a while (e.g. Superfrog).

OK. Will try looking at the timing for the ram but its not looking bad TBH.

mattsoft · 31 August 2017, 08:47

Anyone tried a TF530 in a 1000? Curious if it physically fits with the floppy drive in place, and if it actually works (assuming you have a kickstart switcher with 2.05+ installed).

plasmab · 31 August 2017, 09:31

Doesn't work. I think there are timing issues

Sent from my iPhone using Tapatalk

Tectron · 31 August 2017, 15:03

Quote:

Originally Posted by mattsoft

Anyone tried a TF530 in a 1000? Curious if it physically fits with the floppy drive in place, and if it actually works (assuming you have a kickstart switcher with 2.05+ installed).

I've built a rev3 to try in mine, I'm waiting for my offset board from dirtypcb's before I can actually put it in place to see how it will physically work with the floppy in place but eyeballing it it looks like the floppy will fit. Electrically I'll have no idea how it will respond until I have some sort of kickstart adapter. Hopefully it will at least try to boot. I'll cross that bridge when I get there.

If you skip to 1:50 you can see how it will be positioned when mounted.
[ Show youtube player ]

alenppc · 31 August 2017, 15:34

I tried, it won't boot on A1000.
It also won't fit with the floppy, but it fits with kipper's relocator board for the A1000.

Tectron · 31 August 2017, 15:56

Quote:

Originally Posted by alenppc

I tried, it won't boot on A1000.
It also won't fit with the floppy, but it fits with kipper's relocator board for the A1000.

Bummer, I was hoping that it would at least do something when turned on. What revision is your motherboard?

alenppc · 31 August 2017, 15:58

Hmm I have no idea, but it's an early NTSC version.

Tectron · 31 August 2017, 16:19

Quote:

Originally Posted by alenppc

Hmm I have no idea, but it's an early NTSC version.

Mines a NTSC Rev 6, probably doesn't matter but who knows.

alenppc · 31 August 2017, 16:34

Just found a pic, mine is also a rev 6.

plasmab · 01 September 2017, 00:36

I have done some refactoring of the RAM cpld logic tonight. Will try it tomorrow and give out a beta if it works

Sent from my iPhone using Tapatalk

alenppc · 01 September 2017, 12:42

Quote:

Originally Posted by plasmab

I have done some refactoring of the RAM cpld logic tonight. Will try it tomorrow and give out a beta if it works

Sent from my iPhone using Tapatalk

Exciting!!! I wonder if this will improve compatibility with ISSI RAM?

Black68 · 01 September 2017, 15:30

More mystery with RAM chips:

I bought Alliance chips from these two providers in china

AS7C4096-12TCN:
http://www.ebay.es/itm/AS7C4096B-12T...72.m2749.l2649

AS7C4096A-12TI:
http://www.ebay.es/itm/10PCS-AS7C409...72.m2749.l2649

They dont work at all (board wont boot). Both chips supposed to be 12ns.... Maybe they are rebranded chips, but it would be strange that both sellers have rebranded chips TBH.

Changing the RAM chips to these ones (AS7C4096A-12TIN bought locally at RS Components) fix the problem and the board runs fine:
http://es.rs-online.com/web/p/chips-...8221/?sra=pmpn

Black68 · 01 September 2017, 15:43

Quote:

Originally Posted by 8 Bit Dreams

Hi,
I have some Mr.Flibble's relocator pcb's left. Also some ready built
Also ready built TF530 running @50Mhz
Postage 4€ as surface mail or 6.50€ tracked and insured anywhere in the world

Hi, sorry for the late reply. I was away for a couple of weeks.

Im still interested in one or two boards if you still have them. Let me know.

Thanks!

8 Bit Dreams · 01 September 2017, 21:23

Quote:

Originally Posted by Black68

More mystery with RAM chips:

I bought Alliance chips from these two providers in china

AS7C4096-12TCN:
http://www.ebay.es/itm/AS7C4096B-12T...72.m2749.l2649

AS7C4096A-12TI:
http://www.ebay.es/itm/10PCS-AS7C409...72.m2749.l2649

They dont work at all (board wont boot). Both chips supposed to be 12ns.... Maybe they are rebranded chips, but it would be strange that both sellers have rebranded chips TBH.

Changing the RAM chips to these ones (AS7C4096A-12TIN bought locally at RS Components) fix the problem and the board runs fine:
http://es.rs-online.com/web/p/chips-...8221/?sra=pmpn

it isn't a big wonder, as the chips from china are marked as AS7C4096B
and you need AS7C4096A
changig them to AS7C4096A-12TIN is solving your issue - so nothing wrong here

Black68 · 01 September 2017, 21:51

Quote:

Originally Posted by 8 Bit Dreams

it isn't a big wonder, as the chips from china are marked as AS7C4096B
and you need AS7C4096A
changig them to AS7C4096A-12TIN is solving your issue - so nothing wrong here

Judging for the datasheets both chips are very similar, being the AS7C4096A more power efficient. I will look closely to both datasheets to see what differences really are.

Also, the chips from the 2nd link are AS7C4096A and they do not work either...

By the way, do you still have some relocator boards available?

plasmab · 02 September 2017, 10:35

20 Red TF530s Rev 2s for sale .

http://www.ebay.co.uk/itm/202043872979?ul_noapp=true

Wont be able to post until I return from vacation. If these all sell i'll reorder 30 next time and so on.

keith · 02 September 2017, 11:24

Hi guys a bit off topic, just to say a big thanks to all & especially Plasmab!
My second build rev 2 @ 50Mhz is alive and kicking if anybody is interested a little vid [ Show youtube player ]

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Listening to Amiga music with too much treble makes it sound terrible!	Foebane	Amiga scene	4	08 October 2016 06:30
Terrible usb drive performance?	lovinggames	support.FS-UAE	5	11 March 2015 09:06
Broken MASPlayer - Terrible hissing.	SS454	support.Hardware	8	17 November 2013 01:41
Accelerators	pmc	MarketPlace	9	04 November 2009 20:23
Problem with a terrible, simply effect!	Camionsauro	Coders. General	13	19 April 2009 08:53

29 August 2017, 18:26	#1881
plasmab Banned Join Date: Sep 2016 Location: UK Posts: 2,917	Ok. @alenpcc & @EzdineG I'm confused by the messages here. Lets see if i can summarize. 1. Alliance RAM works? 2. ISSI RAM Fails the systest tests if A21 is connected? 3. ISSI RAM Passes the systest tests if A21 track is cut? 4. ISSI RAM with Frontier crashes even if A21 is cut? *By A21 Cut i mean the line to PIN 25 of the RAM Chips on the TF530 Rev 3.

29 August 2017, 18:29	#1883
alenppc Registered User Join Date: Apr 2012 Location: Canada Age: 44 Posts: 910	The answer is Yes to all these points. 4. Not just frontier, also other games crash after a while (e.g. Superfrog).

31 August 2017, 08:47	#1885
mattsoft Registered User Join Date: Dec 2016 Location: Seattle, WA Posts: 89	Anyone tried a TF530 in a 1000? Curious if it physically fits with the floppy drive in place, and if it actually works (assuming you have a kickstart switcher with 2.05+ installed).

31 August 2017, 09:31	#1886
plasmab Banned Join Date: Sep 2016 Location: UK Posts: 2,917	Doesn't work. I think there are timing issues Sent from my iPhone using Tapatalk

31 August 2017, 15:34	#1888
alenppc Registered User Join Date: Apr 2012 Location: Canada Age: 44 Posts: 910	I tried, it won't boot on A1000. It also won't fit with the floppy, but it fits with kipper's relocator board for the A1000.

31 August 2017, 15:58	#1890
alenppc Registered User Join Date: Apr 2012 Location: Canada Age: 44 Posts: 910	Hmm I have no idea, but it's an early NTSC version.

31 August 2017, 16:34	#1892
alenppc Registered User Join Date: Apr 2012 Location: Canada Age: 44 Posts: 910	Just found a pic, mine is also a rev 6.

01 September 2017, 00:36	#1893
plasmab Banned Join Date: Sep 2016 Location: UK Posts: 2,917	I have done some refactoring of the RAM cpld logic tonight. Will try it tomorrow and give out a beta if it works Sent from my iPhone using Tapatalk

01 September 2017, 15:30	#1895
Black68 Registered User Join Date: Jul 2017 Location: Spain Posts: 46	More mystery with RAM chips: I bought Alliance chips from these two providers in china AS7C4096-12TCN: http://www.ebay.es/itm/AS7C4096B-12T...72.m2749.l2649 AS7C4096A-12TI: http://www.ebay.es/itm/10PCS-AS7C409...72.m2749.l2649 They dont work at all (board wont boot). Both chips supposed to be 12ns.... Maybe they are rebranded chips, but it would be strange that both sellers have rebranded chips TBH. Changing the RAM chips to these ones (AS7C4096A-12TIN bought locally at RS Components) fix the problem and the board runs fine: http://es.rs-online.com/web/p/chips-...8221/?sra=pmpn

02 September 2017, 10:35	#1899
plasmab Banned Join Date: Sep 2016 Location: UK Posts: 2,917	20 Red TF530s Rev 2s for sale . http://www.ebay.co.uk/itm/202043872979?ul_noapp=true Wont be able to post until I return from vacation. If these all sell i'll reorder 30 next time and so on.

02 September 2017, 11:24	#1900
keith Registered User Join Date: Jan 2017 Location: Eastbourne Posts: 88	Hi guys a bit off topic, just to say a big thanks to all & especially Plasmab! My second build rev 2 @ 50Mhz is alive and kicking if anybody is interested a little vid [ Show youtube player ]

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)