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What are the BSP code changes needed for AM335x WEC 7 BSP if we replace the default 256MB RAM with 512MB RAM?

Right now I'm testing changing the offset in image_cfg.h and addrtab_cfg.inc.

But I am stuck with the system not launching the explorer screen.

This is my bootloader messages so far:

========================================

Texas Instruments Windows CE EBOOT for AM33x, Built Jan 5 2015 at 17:43:30
EBOOT Version 0.0.1, BSP BSP_WINCE_ARM_A8 02.30.00.01

TI AM33X

ecc type:3
System ready!
Preparing for download...
INFO: Predownload....
Checking bootloader blocks are marked as reserved (Num = 58)

BOOT_CFG_SIGNATURE is different, read -1, expect 1111705159
WARN: Boot config wasn't found, using defaults
SD_MMC as default boot device
IsValidMBR: MBR sector = 0xe80 (valid MBR)
IsValidMBR: MBR sector = 0xe80 (valid MBR)
IsValidMBR: MBR sector = 0xe80 (valid MBR)

>>> Forcing cold boot (non-persistent registry and other data will be wiped) <<<
2950ffd0 710b -> d0 ff 50 29 b 71
2950ffd0 730b -> d0 ff 50 29 b 73
Hit space to enter configuration menu [599] 5...
Hit space to enter configuration menu [1599] 4...
Hit space to enter configuration menu [2599] 3...
Hit space to enter configuration menu [3599] 2...
Hit space to enter configuration menu [4599] 1...
Init HW: controller RST
SDCARD: requested speed 1000000, actual speed 1000000
SDCARD: requested speed 25000000, actual speed 19200000
OEMPreDownload: Filename nk.bin
BLSDCardDownload: File nk.bin openning
BLSDCardDownload: File nk.bin open success

BL_IMAGE_TYPE_BIN

+OEMMultiBinNotify(0x8feb5ef8 -> 1)
Download file information:
-----------------------------------------------------------
[0]: Address=0x80002000 Length=0x021443d4 Save=0x80002000
-----------------------------------------------------------
Download file type: 1
+OEMIsFlashAddr(0x80002000) g_eboot.type 1
rom_offset=0x0.
ImageStart = 0x80002000, ImageLength = 0x21443d4, LaunchAddr = 0x8000bcc0, RecordLen = 0x20ceec8

Completed file(s):
-------------------------------------------------------------------------------
+OEMIsFlashAddr(0x80002000) g_eboot.type 1
[0]: Address=0x80002000 Length=0x21443d4 Name="" Target=RAM
ROMHDR at Address 80002044h
Launch Windows CE image by jumping to 0x8000bcc0...

Windows CE Kernel for ARM (Thumb Enabled)
CPU CP15 Control Register = 0xc5387f
CPU CP15 Auxiliary Control Register = 0x42
Andromeda BoardId=0 BaseBoardVersion=16 BoardProfile=1+OALTimerInit(1, 24000, 200)
--- High Performance Frequecy is 24 MHz---