Amiga 500 Memory detection - ( BeagleBone Emulating RAM)

RichardP · 08 September 2019, 21:55

I am currently in the process of making an interface for a BeagleBone Black to Amiga500 Zorro slot. The main aim was to get the networking facilities to run, but there is so much more it can do.

One of the things is emulation of RAM connected via Zorro - but I am curious how toe amiga detects it? There is a dedicated memory map with two 4MB Zorro blocks; would it be sufficent for the new hardware just to respond to the address? or would I have to comply with the Autoconfig methods before the RAM will be detected.

I would like in the end emulate the RTC, RAM, IDE Hard Drive and what-not on an A500 - and all inside the BeagleBones realtime processors.

I have only just started - but its looks very do-able
https://gruhouse.blogspot.com/2019/0...one-black.html

Any hints if RAM needs Autoconfig will be greatly appreciated.

Richard

The Beagbone Timing and benchmarks..
https://gruhouse.blogspot.com/2019/0...th-pru-of.html

hooverphonique · 08 September 2019, 22:11

yes, you need autoconfig if you want the memory to be automatically added to the system free memory list.

08 September 2019, 21:55	#1
RichardP Registered User Join Date: Dec 2018 Location: Cambridge Posts: 17	Amiga 500 Memory detection - ( BeagleBone Emulating RAM) I am currently in the process of making an interface for a BeagleBone Black to Amiga500 Zorro slot. The main aim was to get the networking facilities to run, but there is so much more it can do. One of the things is emulation of RAM connected via Zorro - but I am curious how toe amiga detects it? There is a dedicated memory map with two 4MB Zorro blocks; would it be sufficent for the new hardware just to respond to the address? or would I have to comply with the Autoconfig methods before the RAM will be detected. I would like in the end emulate the RTC, RAM, IDE Hard Drive and what-not on an A500 - and all inside the BeagleBones realtime processors. I have only just started - but its looks very do-able https://gruhouse.blogspot.com/2019/0...one-black.html Any hints if RAM needs Autoconfig will be greatly appreciated. Richard The Beagbone Timing and benchmarks.. https://gruhouse.blogspot.com/2019/0...th-pru-of.html

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08 September 2019, 22:11	#2
hooverphonique ex. demoscener "Bigmama" Join Date: Jun 2012 Location: Fyn / Denmark Posts: 1,631	yes, you need autoconfig if you want the memory to be automatically added to the system free memory list.

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