WinCE 5.0 automatic ram question?

From: gary (gary_at_discussions.microsoft.com)
Date: 01/24/05 

Date: Sun, 23 Jan 2005 22:35:53 -0800

hi...

My Hardwave Device
RAM 128M
VGA RAM(2M 4M 8M 16M 32M)BIOS options

I have a question for more than 64MB of RAM
I studied in docs with help(supporting or simulating more than 64MB of RAM)
cepc/PB 4.2 setting with the following

pc.h
#define CEPC_EXTRA_RAM_SIZE 0x6400000
oeminit.asm
dd 80000000h, 0, 08000000h

when I try to set VGA BIOS RAM (with 2M~32M), CEPC/PB 4.2 is automatic with
system RAM. EX. NK.Bin=17M , I set VGA RAM=32M system detects free RAM size
probably 78M, when VGA RAM=16M , I get availdable RAM=94M , CEPC/PB 4.2 is
automaic detect available free RAM.
but I try to modify the same method with CEPC/PB 5.0, debug message appear
with the following...
Double Fault -- backlink=0048
      1 PID:0 TID:0 TSS=8143f6c0 EIP=8023989e Flags=00210086
      1 PID:0 TID:0 Eax=00000000 Ebx=8145da84 Ecx=03f60028 Edx=8145db50
      1 PID:0 TID:0 Esi=a4000000 Edi=8145d780 Ebp=8145da78 Esp=8145da14
      1 PID:0 TID:0 CS=0019 DS=0040 ES=0040 SS=0021 FS=0000 GS=0000

I try to modify config.bib
        #else
           ; 28 MB of RAM (default) (note: AUTOSIZE will adjust boundary)
           ; This value will cause the RAM auto-detect feature to trigger
           NK 80220000 009E0000 RAMIMAGE
           RAM 80C00000 05400000 RAM ;when VGA BIOS is setting 32M
        #endif

So that I always get free RAM about 78M , no matter what I set VGA RAM size
(option 2M~32M).

How to setting(BIOS VGA RAM options ) to get automatic free RAM size with
PB 5.0??
Why need to motify config.bib with PB 5.0?? is different to PB 4.2??

thanks.

Relevant Pages

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