How to put Assembly code in the absolute address?

jim wang1

Intellectual 390 points

Follow is assembly code:

.sect "BootMem"

.align

.clink

FimmwareUp

; bic.b RTCIE,&RTCCTL ; disable hourly interruption

calla #ClrBootRAM; clear memory

follow is Liker file:

MEMORY

{

BootMem_SEC : origin = 0x2100, length = 0x02FF

}

SECTIONS

{

.text:BootMem > BootMem_SEC

}

these code can not work, the code is not located after 0x2100.

Also if add code “ bic.b RTCIE,&RTCCTL “

there is an error: [E0004] Illegal un-relocatable operand ASMEE.s /FisrtProject line 941 C/C++ Problem

why ?

over 13 years ago

0 Archaeologist over 13 years ago

TI__Guru* 84285 points

Your .sect doesn't match your SECTIONS. Change the .sect to:

.sect ".text:BootMem"

.text:BootMem > BootMem_SEC

0 Archaeologist over 13 years ago

TI__Guru* 84285 points

You need a .ref for each of those symbols, which are probably linker-defined symbols.

    .ref RTCIE
    .ref RTCCTL

Which MSP device are you using?

0 jim wang1 over 13 years ago in reply to Archaeologist

Intellectual 390 points

yes, <.sect ".text:BootMem"> is work, thanks lot!
you means add: .ref RTCIE
                          . ref RTCCTL 
those code in to Liker file?
I use MSP430FG4619, I'm try convert my current project that is programed under IAR to TI's CCS

0 jim wang1 over 13 years ago in reply to Archaeologist

Intellectual 390 points

Get it, actually RTCIE not recognized, so use #0x02 to replace it. no need .ref. thanks

0 jim wang1 over 13 years ago in reply to jim wang1

Intellectual 390 points

it works, thanks

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How to put Assembly code in the absolute address?