Amiga.org
Amiga computer related discussion => Amiga Hardware Issues and discussion => Topic started by: utri007 on August 04, 2014, 06:20:22 PM
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Big book of Amiga hardware has a pictures, but not a jumper settings. http://www.bigbookofamigahardware.com/bboah/product.aspx?id=180
Amiga.resource.cx has two entries for this card series 1 and series 2. Ity has a jumper settings for series 2 card and RAM32 module, but not for series 1 card and RAM8 module.
http://amiga.resource.cx/exp/a3001
http://amiga.resource.cx/exp/a3001mk2
With google I have found some questions for this, BUT all answers point for series 2 accelerator and RAM32.
Serie 2 card jumpers settings doesn't help me.
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You can find the settings here now:
http://amiga.resource.cx/exp/a3001
(sorry for not posting it in this thread, but I didn't find an easy way to put the table here... any ideas?)
Anyway, I hope it helps.
Big book of Amiga hardware has a pictures, but not a jumper settings. http://www.bigbookofamigahardware.com/bboah/product.aspx?id=180
Amiga.resource.cx has two entries for this card series 1 and series 2. Ity has a jumper settings for series 2 card and RAM32 module, but not for series 1 card and RAM8 module.
http://amiga.resource.cx/exp/a3001
http://amiga.resource.cx/exp/a3001mk2
With google I have found some questions for this, BUT all answers point for series 2 accelerator and RAM32.
Serie 2 card jumpers settings doesn't help me.
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Make sure you have Nibble Mode 1MB SIMMs or it will not work and will cause your machine to lock up. These are hard to find but B&C Computervisions sell them (for the Atari TT030 computer)
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I was looking them from there :( Just wondering are they updated page just few days ago?
Just wondering, cache / MMU jumpers doesn't seems to work as descripted. My board is jumpered so that caches should be disabled, but they are not.
https://zjolha.bl3301.livefilestore.com/y2pWXaM6jGcS7OmKmIvlWQmKkNvy1GabeNaU0TD4OIcSrbHuFmgLu0d07ZH8HDkZNPT1M-IScQmbIO52zgy6EKza6KXrFPLG19HvkzvSQI6fBc/WP_20140805_006.jpg
https://zjolha.bl3301.livefilestore.com/y2pdkzRzkxn-A_yTaQ3HtTxGPyB65FMFq1Tofy52hXQ1IVf2875yJ8cXhysoiorIZNT9vp7atBtKWPf-HtZ6hPEoarKNAxAFEs0110-ETf1iLA/WP_20140805_008.jpg
There is a MMU
https://zjolha.bl3301.livefilestore.com/y2pVutLCGVAaLkX6syhTgu8qGUqoLPRmAQGr6ktxBnu1rySlmhkb4mdpm-sYNBwb7p-tGY9uOwh64iYtM3FpWSFDBgzBQ6_IU4gRCuxRc1U3aM/WP_20140809_001.jpg
Also memory board is jumpered so that ram should be mapped to 32 bit space, but it uses 24bit Zorro II scape.
https://zjolha.bl3301.livefilestore.com/y2p7_-hUAMM-iJyE6t3l6gkeKm9dIBfAkGxBiYnMiK_K1ioMH_v4pOp0QGilFYQ5uFuT2IYNEOFSebb4ZjYKUQf5WrGOI4lVNbaO26MkMN5c90/WP_20140805_009.jpg
I really would like to know if I can use MMU to map memory away from Zorro II space. Wondering why and how only 50mhz version of card uses it own address space.
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I was looking them from there :( Just wondering are they updated page just few days ago?
Sure, after your question I looked for the jumper settings and updated the A3001 description accordingly.
:)
Just wondering, cache / MMU jumpers doesn't seems to work as descripted. My board is jumpered so that caches should be disabled, but they are not.
MMU and cache settings can also be changed by software, so please try booting without startup-sequence and have a look again.
Also memory board is jumpered so that ram should be mapped to 32 bit space, but it uses 24bit Zorro II scape.
Actually, there is no jumper for that - J5 on RAM8 is just to select between 4 and 8 MB.
But anyway, I also would have expected the memory not to appear in Z2 memory address range. No idea here...
Wondering why and how only 50mhz version of card uses it own address space.
Why do you think the 50 MHz model is special in that regard?
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Thanks for your input. :) I need to test it without startup-sequence to see what is happenging with MMU/Caches. You migh be right, if I remove both jumpers, it doesn't seems to affect to anything, BUT if I but both of jumper ON amiga doesn't boot at all, only black screen.
OK 50mhz board supports up to 20mb with ram32 board.
◦16 - 33 MHz boards support 1 MB SIMMs only, possible configurations are 2, 4 and 8 MB
◦50 MHz boards support 4 MB SIMMs, possible configurations are 4, 8, 12, 16 and 20 MB
◦using a 4 MB SIMM requires four 1 MB SIMMs to be installed in sockets 3 to 6, so the 4 MB SIMMs can only be installed into sockets 7 to 10
I have a Commodore A2088, I have updated bios on it, so it supports 16bit ISA networkcards. I would like to use etherbridge software with it, to get my A2000 online.
I have already found out that there are several tools to alloc memory and I can remove memory from Zorro II space with software. Can I map memory to 32 bit space with software?
4mb is just too small amount of memory. :(