A500 Zorro Slot Adaptor - Page 6

Daedalus · 21 December 2017, 13:05

Cheers guys! Yep, those connectors aren't the best behaved when they're not nice and level, so the feet keep it at the right height for the A500. The A1000 of course is higher up, so things get a little tricky there. I've drawn up a simple slot extender that Acill is going to prototype. That should let it sit on the desk on an A1000 without dangling precariously in the air, so that might be an option in the future.

@Legionary
You mean a prototype of the Z-500 or Acill's case? The board looks like this:

http://robthenerd.com/pics/z-500-proto.jpg

@McTrinsic
Yeah, it's hard to know really. Working through the problem with E-Penguin, I think we determined the most likely cause is an issue with address line A19. Where that issue is however is hard to determine remotely - the Z-500 was 100% tested and worked before I sent it, and I'm sure Matze's board was also tested and 100% worked before he shipped it. That leaves the following possibilities that I can think of:

- Damage in transit on either board (cracked solder joint or connector?)
- A problem with one or other of the edge connectors involved in the setup (there's a total of 4 pairs of edge connectors in that setup, 3 of which are in series between the CPU and graphics board, so quite a lot of scope for that sort of issue)
- A spontaneous failure of a part elsewhere on any of the 5 boards involved (A500, Z-500, ACA500+, graphics board or ACA1221)
- A short somewhere due to debris or similar

@E-Penguin
If you have a multimeter handy it should be easy enough to at least check for shorts and integrity on the address lines, which might help you narrow down the root of the problem.

E-Penguin · 22 December 2017, 10:12

I did some poking about with the multimeter, but couldn't figure out which pins were the A19 line. I've sent the graphics card back to Matze to check, if he finds nothing wrong then it must be elsewhere in the setup, which is odd.

You had my ACA500+ working with Zorro2 memory boards on this adaptor, so that should prove the chain between that and the GBAPII++. Which leaves either the ACA1221 or the graphics card as the possible culprit.

McTrinsic · 22 December 2017, 20:01

Sorry if I am complicating things. But for my Phoenixboard some cards work really well. Such as a VarIO. With the GBA++ on the expansion port, however, the card showed even more ghosting-liked artifacts than what you have here.
For the Phoenix this largely credited to signal quality but of course may also be due to other issues. Such as a missing buster with three devices on the Zorro-chain.

E-Penguin · 22 December 2017, 23:41

At 800x600 8bit or less there's no ghosting and the image is crystal clear. Over that it needs to access the upper memory chip, and ghosting starts.

E-Penguin · 18 January 2018, 21:02

Just to follow up ; it was indeed a problem with a memory chip, and not the adaptor. Matze fixed it straight away, all good stuff.

If anyone is interested in further details...
https://amigadventures.tumblr.com/po...iga-500-part-2

Daedalus · 21 January 2018, 20:43

Glad it's all sorted and you're up and running

BrooksterMax · 22 January 2018, 23:38

Are you still taking expressions of interest? This looks rather marvellous and I can see use-cases for my A500 and A1500.

zharn · 23 January 2018, 02:26

Me too, im building up a500, adding a zorro will solve the network problem

Daedalus · 14 February 2018, 17:22

Cheers guys, currently assembling another small batch of these, I'll let you know when they're ready.

17 February 2018, 09:57

I’m happy to know there will be another batch soon, and I am definitely interested in one.
PM sent

03 March 2018, 04:36

Definitely interested.

Daedalus · 05 March 2018, 13:30

Thanks guys! I'm working through the backlog of people who declared interest in the board, then I'll have a couple left for sale. If you've declared interest, please check your PMs

Daedalus · 12 March 2018, 14:52

Okay, I still have a few of these left if anyone else is interested?

nexus · 12 March 2018, 20:23

interested

Daedalus · 12 March 2018, 21:37

Hi Nexus, the cost is £35 plus shipping, which is £9.75 to the US. PM me if you'd like to go ahead with it.

hiroshima · 24 March 2018, 20:36

Interested.

PM sent to Daedalus.

M.

nexus · 25 March 2018, 05:44

thanks items received few days ago

Daedalus · 25 March 2018, 22:21

Cheers guys!

rlake · 01 April 2018, 21:01

Interested. Are there any left or did I miss the boat?

Daedalus · 03 April 2018, 00:03

Quote:

Originally Posted by rlake

Interested. Are there any left or did I miss the boat?

Yep, still have a few left, they cost £35 + shipping, which is £9.75 to the US for a total of £44.75.

21 December 2017, 13:05	#101
Daedalus Registered User Join Date: Jun 2009 Location: Dublin, then Glasgow Posts: 6,334	Cheers guys! Yep, those connectors aren't the best behaved when they're not nice and level, so the feet keep it at the right height for the A500. The A1000 of course is higher up, so things get a little tricky there. I've drawn up a simple slot extender that Acill is going to prototype. That should let it sit on the desk on an A1000 without dangling precariously in the air, so that might be an option in the future. @Legionary You mean a prototype of the Z-500 or Acill's case? The board looks like this: http://robthenerd.com/pics/z-500-proto.jpg @McTrinsic Yeah, it's hard to know really. Working through the problem with E-Penguin, I think we determined the most likely cause is an issue with address line A19. Where that issue is however is hard to determine remotely - the Z-500 was 100% tested and worked before I sent it, and I'm sure Matze's board was also tested and 100% worked before he shipped it. That leaves the following possibilities that I can think of: - Damage in transit on either board (cracked solder joint or connector?) - A problem with one or other of the edge connectors involved in the setup (there's a total of 4 pairs of edge connectors in that setup, 3 of which are in series between the CPU and graphics board, so quite a lot of scope for that sort of issue) - A spontaneous failure of a part elsewhere on any of the 5 boards involved (A500, Z-500, ACA500+, graphics board or ACA1221) - A short somewhere due to debris or similar @E-Penguin If you have a multimeter handy it should be easy enough to at least check for shorts and integrity on the address lines, which might help you narrow down the root of the problem. Last edited by Daedalus; 22 December 2017 at 20:25. Reason: Sorry, didn't realise the image was so big...

17 February 2018, 09:57	#110
zaigne Posts: n/a	I’m happy to know there will be another batch soon, and I am definitely interested in one. PM sent Last edited by zaigne; 22 February 2018 at 16:58.

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22 December 2017, 10:12	#102
E-Penguin Banana Join Date: Jul 2016 Location: Darmstadt Posts: 1,213	I did some poking about with the multimeter, but couldn't figure out which pins were the A19 line. I've sent the graphics card back to Matze to check, if he finds nothing wrong then it must be elsewhere in the setup, which is odd. You had my ACA500+ working with Zorro2 memory boards on this adaptor, so that should prove the chain between that and the GBAPII++. Which leaves either the ACA1221 or the graphics card as the possible culprit.

22 December 2017, 20:01	#103
McTrinsic Registered User Join Date: Feb 2014 Location: Germany Posts: 527	Sorry if I am complicating things. But for my Phoenixboard some cards work really well. Such as a VarIO. With the GBA++ on the expansion port, however, the card showed even more ghosting-liked artifacts than what you have here. For the Phoenix this largely credited to signal quality but of course may also be due to other issues. Such as a missing buster with three devices on the Zorro-chain.

22 December 2017, 23:41	#104
E-Penguin Banana Join Date: Jul 2016 Location: Darmstadt Posts: 1,213	At 800x600 8bit or less there's no ghosting and the image is crystal clear. Over that it needs to access the upper memory chip, and ghosting starts.

18 January 2018, 21:02	#105
E-Penguin Banana Join Date: Jul 2016 Location: Darmstadt Posts: 1,213	Just to follow up ; it was indeed a problem with a memory chip, and not the adaptor. Matze fixed it straight away, all good stuff. If anyone is interested in further details... https://amigadventures.tumblr.com/po...iga-500-part-2

21 January 2018, 20:43	#106
Daedalus Registered User Join Date: Jun 2009 Location: Dublin, then Glasgow Posts: 6,334	Glad it's all sorted and you're up and running

22 January 2018, 23:38	#107
BrooksterMax Registered User Join Date: Sep 2009 Location: Norfolk UK Age: 43 Posts: 433	Are you still taking expressions of interest? This looks rather marvellous and I can see use-cases for my A500 and A1500.

23 January 2018, 02:26	#108
zharn Registered User Join Date: Nov 2012 Location: Brisbane Australia Posts: 150	Me too, im building up a500, adding a zorro will solve the network problem

14 February 2018, 17:22	#109
Daedalus Registered User Join Date: Jun 2009 Location: Dublin, then Glasgow Posts: 6,334	Cheers guys, currently assembling another small batch of these, I'll let you know when they're ready.

03 March 2018, 04:36	#111
genenorton Posts: n/a	Definitely interested.

05 March 2018, 13:30	#112
Daedalus Registered User Join Date: Jun 2009 Location: Dublin, then Glasgow Posts: 6,334	Thanks guys! I'm working through the backlog of people who declared interest in the board, then I'll have a couple left for sale. If you've declared interest, please check your PMs

12 March 2018, 14:52	#113
Daedalus Registered User Join Date: Jun 2009 Location: Dublin, then Glasgow Posts: 6,334	Okay, I still have a few of these left if anyone else is interested?

12 March 2018, 20:23	#114
nexus Registered User Join Date: Aug 2017 Location: USA Posts: 728	interested

12 March 2018, 21:37	#115
Daedalus Registered User Join Date: Jun 2009 Location: Dublin, then Glasgow Posts: 6,334	Hi Nexus, the cost is £35 plus shipping, which is £9.75 to the US. PM me if you'd like to go ahead with it.

24 March 2018, 20:36	#116
hiroshima Registered User Join Date: Mar 2018 Location: Avellino Posts: 12	Interested. PM sent to Daedalus. M.

25 March 2018, 05:44	#117
nexus Registered User Join Date: Aug 2017 Location: USA Posts: 728	thanks items received few days ago

25 March 2018, 22:21	#118
Daedalus Registered User Join Date: Jun 2009 Location: Dublin, then Glasgow Posts: 6,334	Cheers guys!

01 April 2018, 21:01	#119
rlake Hittin' the hardware... Join Date: Feb 2002 Location: Mountain View, CA Age: 44 Posts: 156	Interested. Are there any left or did I miss the boat?

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