I have been trying to get full access to the 2MB of memory on a
TS-NVRAM2 board, but seem to be only able to access 1MB.
I have tried linear mode and paged mode, all in 16 bit mode.
In the TS-7250 documentation it states that the TS-7250 supports the
2MB NVRAM board, but I find conflicting information in the documentation.
In the TS-7250 manual, June 2007, page 33 it states that PC/104
peripherals will appear in the TS-7250's physical address space in one
of four regions, and each is region is a full 1MB in size:
16-bit - 0x21A00000-0x21AFFFFE
In the memory map at the back of the manual on page 40 it shows the
16 bit location to be: 0x21800000-0x21BFFFFF
In reality I find that the NVRAM2 board maps to 0x21800000, but I can
only access the first 1MB on the board.
A couple questions:
Does the TS-7250 really support the NVRAM2 board based on the
conflicting documentation?
Has anyone been successful in using the full 2MB board?
If so, could you share your code with me, I'm only interested in the
mapping performed.
BTW, I have tried two different TS-NVRAM2 boards and different TS-7250
boards with the same results.
Thank you
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