Modify start address in MQX project with Keil uVision4

[waynelai]

The bootloader is programmed from 0x0~0x9FFF.

Application is programmed begin from 0xA000.

After bootloader programming the application, it will jump to 0xA000.

So, we need to modify the MQX application project to begin from 0xA000.

We've modify below settings.

#define BSP_INTERNAL_FLASH_BASE 0x0000A000

#define __VECTOR_TABLE_ROM_START 0x0000A000

#define MQX_ROM_VECTORS 0

We also modify the .scf file with below value, original is 0x00000000.

#define INTFLASH_BASE_ADDR

0x0000A000

The map file seems ok, but can not execute the application correctly.

	.vectors_rom	0x0000a000   Section	1024  vectors.o(.vectors_rom)
	__tagsym$$used	0x0000a000   Number	0  vectors.o(.vectors_rom)
	.cfmconfig	0x0000a400   Section	16  vectors.o(.cfmconfig)
	__tagsym$$used	0x0000a400   Number	0  vectors.o(.cfmconfig)
	!!!main	0x0000a410   Section	8  __main.o(!!!main)
	!!!scatter	0x0000a418   Section	52  __scatter.o(!!!scatter)
	!!dczerorl2	0x0000a44c   Section	90  __dczerorl2.o(!!dczerorl2)
	!!handler_copy	0x0000a4a8   Section	26  __scatter_copy.o(!!handler_copy)
	!!handler_zi	0x0000a4c4   Section	28  __scatter_zi.o(!!handler_zi)
	. text	0x0000a4e0   Section	76  boot.o(. text)

Did we miss some configuration so it can not be executed correctly ?

Please advise, thanks.

[danielchen]

Hi

I think you need to change the following,  INTFLASH_BASE_ADDR,  _VECTOR_TABLE_ROM_START, and mark //init_hardware->_bsp_initialize_hardware->_bsp_watchdog_disable()

There is an application note AN2295 for that.

[waynelai]

thanks for the reply.

Currently it seems ok now.

We have another issue.

We add a library which is compiled also using Keil uVision4.

It seems that in the application, when called the function in the library,

it can not be executed correctly,

any idea ?

Thanks.