Phytec nanoModul-164, Быстрый старт

Страница: 91 / 96

Advanced User Information

PHYTEC Meßtechnik GmbH 2003 L-379e_4
87
You should always ensure segments of your application will not reach
the segments of the Monitor. The Monitor’s segments will usually be
linked to the top of the memory leaving you as much memory space
as possible.
The Monitor is linked under the assumption of maximum memory
upgrading for Flash bank 1 and RAM bank 1. Remember that you will
have multiple additional mirrors of the physical devices actually
mounted on the nanoMODUL-164 if their capacity is less than the
maximum value of 1 MB.
For instance if you have 256 kByte of RAM mounted on the
nanoMODUL-164 you will have one additional mirror of the RAM
within the reserved 512 kByte range. Note that in this case all
associated address ranges of 0x40000-0x7FFFF will actually address
the same physical device address range of 0x00000-0x3FFFF. This
really means that exactly the same physical memory location can be
addressed using four different internal addresses. This must be taken
into consideration when you verifying your memory mappings.