Flash addressing scheme - vmp3 - 12, Netbootloader vmp3 – Kontron VMP3 User Manual

Page 96

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NetBootLoader

VMP3

Page 5 - 12

© 2005 Kontron Modular Computers GmbH

ID 29230, Rev. 01

29230

.01.UG.VC.050727/091439

P R E L I M I N A R Y

Figure 5-1: Flash Addressing Scheme - VMP3

To understand the above concept assume for example that the onboard soldered Flash is an
16 MB device, and the application image is 4 MB.

Then:

4 MB application size = 0x0040 0000

application size + 0x7 = 0x0040 0007

0x0005 FFFF + application size + 0x7 = 0x0046 0006

0xZZZZ ZZZZ = 0x00FF FFFF

Addressing of off-board Flash would begin with 0x0100 0000.

VMP3 Flash

Flash Layout (First Bank)

External

Flash

(if installed)

Configuration Data,

File System, etc.

0xZZZZ ZZZZ

The size of this area is dependent on the
size of the first Flash and the area
occupied by the Application Image and
the NetBootLoader

0x0005 FFFF + application image + 0x7

Application Image

Size of original application image + 0x7

0x0005 FFFF

NetBootLoader

0x0000 0000

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