Quote:
Originally Posted by eXeler0
@Kipper2k what type of memory chips does your design use? And is it 2MB or more?
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Hi, The Chipmem is a single 2MB chip and uses the following schematic, tweaked a bit so it could be implemented on the Motherboard.
https://github.com/LIV2/A500-2Meg-Chip-ram (Thanks Matt!).
The 8MB fastmem is derived from my old 8MB/IDE board and is also implemented on the motherboard. IDE is also implemented on the motherboard and due to location of where i had to place it i designed a custom 50 pin FFC header (lower left of the board )so that people could use either a 44pin IDE, 40 pin IDE or use CF or IDE adapters with it. The quadrom portion is from Mike Stirling and my design that will allow users to hotswap up to 4 x 512k images
using either 27c400, 27c800 or 27c160 chips (i tried a kick1.3 scsi ROM image and it will work if you have the right HDD image) for more compatibility. There are other features too, but more about that later. There is no release date for this, it is dependent on cash flow and my time.
here is the header board...
will prob get tweaked at some point