Ethernet Bootloader for MK64FX512 in Keil MDK5.21

haiwagnzuo — Tue, 07 Nov 2017 11:56:58 GMT

1、I have run Ethernet Bootloader on my board of MK64FX512 through IAR development;

2、But my company must use Keil MDK development,in In the process of transplantation,I Encountered one problem.

I want to put the Fapp_params to address 0x7f000 in flash,so I add the scatter file

ER_m_fnet_app FappParams_start FappParams_size{
fapp_params.o (+RO)
}

bulid the project the map file show

Execution Region ER_m_fnet_app (Base: 0x0007f000, Size: 0x00000244, Max: 0x00000fff, ABSOLUTE)

Base Addr Size Type Attr Idx E Section Name Object

    0x0007f000   0x0000008c   Code   RO         6026    i.fapp_params_from_flash fapp_params.o
    0x0007f08c   0x000000dc   Code   RO         6027    i.fapp_params_to_flash fapp_params.o
    0x0007f168   0x000000dc   Data   RO         6029    .fapp_params        fapp_params.o

it seems that the result is ok,

but I debug the project through the J-Link online,it come in hardfault at the beginning.I donot know what is wrong?

please help me ,thank you very much!

This is my scatter file

;#if (defined(__ram_vector_table__))
#define __ram_vector_table_size__ 0x00000400
;#else
;#define __ram_vector_table_size__ 0x00000000
;#endif

#define m_interrupts_start 0x00000000
#define m_interrupts_size 0x00000400

#define m_flash_config_start 0x00000400
#define m_flash_config_size 0x00000010

#define m_text_start 0x00000410
#define m_text_size 0x0007EBF0

#define m_interrupts_ram_start 0x1FFF0000
#define m_interrupts_ram_size __ram_vector_table_size__

#define m_data_start (m_interrupts_ram_start + m_interrupts_ram_size)
#define m_data_size (0x00010000 - m_interrupts_ram_size)

#define m_data_2_start 0x20000000
#define m_data_2_size 0x00020000

/* FNET application parameters (optional).*/
#define FappParams_start (0x0007FFFF + 1 - (4*0x400))
#define FappParams_end 0x0007FFFF
#define FappParams_size 0xFFF

/* Sizes */
#if (defined(__stack_size__))
#define Stack_Size __stack_size__
#else
#define Stack_Size 0x01000
#endif

#if (defined(__heap_size__))
#define Heap_Size __heap_size__
#else
#define Heap_Size 0x0400
#endif

LR_m_text m_interrupts_start m_text_start+m_text_size-m_interrupts_start { ; load region size_region
VECTOR_ROM m_interrupts_start m_interrupts_size { ; load address = execution address
    * (RESET,+FIRST)
}
ER_m_flash_config m_flash_config_start FIXED m_flash_config_size { ; load address = execution address
    * (FlashConfig)
}
ER_m_text m_text_start m_text_size { ; load address = execution address
    * (InRoot$$Sections)
    .ANY (+RO)
}
ER_m_fnet_app FappParams_start FappParams_size{
fapp_params.o (+RO)
}

;#if (defined(__ram_vector_table__))
VECTOR_RAM m_interrupts_ram_start EMPTY m_interrupts_ram_size {
}
;#else
;VECTOR_RAM m_interrupts_start EMPTY 0 {
;}
;#endif
RW_m_data m_data_start m_data_size { ; RW data
.ANY (+RW +ZI)
}
RW_m_data_2 m_data_2_start m_data_2_size-Stack_Size-Heap_Size { ; RW data
.ANY (+RW +ZI)
}
ARM_LIB_HEAP ((ImageLimit(RW_m_data_2) == m_data_2_start) ? m_data_2_start : +0) EMPTY Heap_Size { ; Heap region growing up
}
ARM_LIB_STACK m_data_2_start+m_data_2_size EMPTY -Stack_Size { ; Stack region growing down
}
}

Re: Ethernet Bootloader for MK64FX512 in Keil MDK5.21

jorge_a_vazquez — Wed, 15 Nov 2017 19:22:27 GMT

Hi haiwagn zuo

According to your map file, Fapp_params is data (Read-Only). Could you clarify how this section gets value? also, if this variable is never initializaed, keil will try to initialize it to zero, which will cause a hardfault. If possible please check the use of UNINIT in keil.

Hope this helps.
Have a great day,
Jorge Alcala

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Ethernet Bootloader for MK64FX512 in Keil MDK5.21

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