MPC56xx Linking const

[dermotmurphy]

Hi,

I would like to link a const into a named section in flash on th eMPC5602.

I am trying this in the C file :

#pragma section sconst_type const_type ".NM_CONST" ".NM_CONST"

static const UINT8 NM_BIT_BYTE_POS[NM_NUM_BITS_IN_BYTE] =

{

    0x80, 0x40, 0x20, 0x10, 0x08, 0x04, 0x02, 0x01

} ;

with this added to the LCF file:

MEMORY

{

    nm_const_flash:        org = 0x00030000,    len = 0x00000200

}

SECTIONS

{

.NM_CONST (CONST)

LOAD (ADDR(nm_const_flash))

: {}

}

However when I check the map file, the data is located in .rodata

How do I move the const array NM_BIT_BYTE_POS into the named section?

[TICS_Fiona]

Please see the code below for how to link your constants as expected:

in the C file :

#pragma section RW ".NM_CONST" ".NM_CONST"

__declspec(section ".NM_CONST" )

static const UINT8 NM_BIT_BYTE_POS[NM_NUM_BITS_IN_BYTE] =

{

    0x80, 0x40, 0x20, 0x10, 0x08, 0x04, 0x02, 0x01

} ;

with this added to the LCF file:

SECTIONS

{

......

  GROUP:{

        .NM_CONST (CONST)                   LOAD (ADDR(nm_const_flash))           : {}

    }> nm_const_flash

......

}

Best Regards

Fiona

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