Amiga 3000: How many Zorro Cards

manicx · 21 February 2005, 09:10

A friend of mine popped into my flat last Saturday with a lovely A3000. He told me he had problems to operate his Picasso II with it. He already had connected a Zorro Ram board (16bit address), a Hypercom card and the Picasso II.

Picasso II was shown as disabled in the startup menu. The Ram board was not working either. I removed all and left the Ram Board. It was working. I inserted the Picasso II, the Ram board continued to work but not PII.

I then left HC and the RAM board. Ram board was not working. Didn't try HC but chances were that it was not functioning either. The only way to make it work was to leave one card at a time. If you added more than 1, thing was a total mess. I tried changing the position of the cards in the slots, but had no luck.

All cards worked flawlesly in my A4000D ( :-) ). The A3000 has a Buster 7 and as far as I can remember, they didn't have any problems. Any suggestions?

keropi · 21 February 2005, 09:30

did u set the picassoII in segmented mode? since you have zorro-RAM, pII must be in segmented mode....

manicx · 21 February 2005, 13:04

Yes, we did. The problem is that even if I remove the PII, the other two cards also have problems ie the HC deactivates the RAM board.... I think the problem is this:

Quote:

All A3000s shipped with DMAC 01 or 02, Ramsey 04 and Fat Buster 05, 06 or 07. Upgrading to DMAC 04 and Ramsey 07 solves many problems with some 040 processor cards, especially the A3640. Upgrading to Super Buster 11 enables Zorro III DMA which is required by some expansion cards, for example the A4091.

"From the Amiga Hardware Database". The A3000 has a 3640.

keropi · 21 February 2005, 13:09

ah, he must do some upgrading then.... or donate his non-working cards to a specific amiga user that can use these cards... LOL

manicx · 21 February 2005, 13:19

a_petri · 21 February 2005, 13:22

How much RAM is actually present in the RAM card? Isn't it 8 MB by chance?-) If it is, you can try to remove some RAM from the card.

There is a common area in the Amigas' memory map reserved for the on-board memory of all the ZorroII cards, and its size is 8 megabytes. The Picasso II in itself wants to allocate 1 or 2 MBytes for its own video RAM.

I had similar problems with an Amiga 2000, a Picasso II and a GVP 2000 2/8 MB. Even after removing 2 MBytes from the GVP RAM card, it only worked if the Picasso II was in a slot nearer to the left edge of the motherboard than the GVP.

(The Picasso II can be configured to use "segmented mode", so it does not map its video RAM to the Zorro II address space, but it will be much slower - and incompatible with Picasso96 - in this mode.)

21 February 2005, 09:10	#1
manicx Junior Member Join Date: Oct 2002 Location: Athens, Greece Posts: 991	Amiga 3000: How many Zorro Cards A friend of mine popped into my flat last Saturday with a lovely A3000. He told me he had problems to operate his Picasso II with it. He already had connected a Zorro Ram board (16bit address), a Hypercom card and the Picasso II. Picasso II was shown as disabled in the startup menu. The Ram board was not working either. I removed all and left the Ram Board. It was working. I inserted the Picasso II, the Ram board continued to work but not PII. I then left HC and the RAM board. Ram board was not working. Didn't try HC but chances were that it was not functioning either. The only way to make it work was to leave one card at a time. If you added more than 1, thing was a total mess. I tried changing the position of the cards in the slots, but had no luck. All cards worked flawlesly in my A4000D ( :-) ). The A3000 has a Buster 7 and as far as I can remember, they didn't have any problems. Any suggestions?

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21 February 2005, 09:30	#2
keropi . Join Date: Oct 2004 Location: Ioannina/Greece Posts: 5,040	did u set the picassoII in segmented mode? since you have zorro-RAM, pII must be in segmented mode....

21 February 2005, 13:09	#4
keropi . Join Date: Oct 2004 Location: Ioannina/Greece Posts: 5,040	ah, he must do some upgrading then.... or donate his non-working cards to a specific amiga user that can use these cards... LOL

21 February 2005, 13:19	#5
manicx Junior Member Join Date: Oct 2002 Location: Athens, Greece Posts: 991

21 February 2005, 13:22	#6
a_petri Registered User Join Date: Jul 2003 Location: Budapest / Hungary Posts: 73	How much RAM is actually present in the RAM card? Isn't it 8 MB by chance?-) If it is, you can try to remove some RAM from the card. There is a common area in the Amigas' memory map reserved for the on-board memory of all the ZorroII cards, and its size is 8 megabytes. The Picasso II in itself wants to allocate 1 or 2 MBytes for its own video RAM. I had similar problems with an Amiga 2000, a Picasso II and a GVP 2000 2/8 MB. Even after removing 2 MBytes from the GVP RAM card, it only worked if the Picasso II was in a slot nearer to the left edge of the motherboard than the GVP. (The Picasso II can be configured to use "segmented mode", so it does not map its video RAM to the Zorro II address space, but it will be much slower - and incompatible with Picasso96 - in this mode.)

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