i.MX Processors中的主题 MFG Tool question

MFG Tool question

eunseokjung — Tue, 15 Sep 2015 02:52:49 GMT

Hi, all

I'm using MFG tool for burnning bootloader.

When i used this, it showed to me that bootloader was built in offset 0x100000 and 0x200000.

But when i read the flash memory, bootloader wasn't there. Bootloader is existed in 0x100000 and A80000.

Why these different are occurred?

Plz, help this problem to solve

Thank you

Eunseok.

Re: MFG Tool question

Yuri — Thu, 17 Sep 2015 04:14:48 GMT

Hello,

NAND-based boot loaders do not support XIP approach and should be built to run

in RAM area, but located in NAND (ROM). Special code (primary loader) have to pre-load

the bootloader to RAM area.

Have a great day,
Yuri

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Re: MFG Tool question

BiyongSUN — Thu, 17 Sep 2015 04:26:15 GMT

The mfg tool mechanism is "boot from usb otg".

It is running a entire system in the DDR including rootfs.

uuc is waiting for command from mfg tool by ucl2.xml.

So a customized mfg tool is a must for a customized board.