MSP430FR6989: Usage of the reset vector in Assembler

Kurt Koch

Part Number: MSP430FR6989

Hey Guys,

so I want to use the reset vector in my assembler-program to jump to a specific start-address after the reset. I use the following code to jump to "main", that is the start of my program (address in my case: 803E):

.section .resetvec,"ax",@progbits
.word main

The problem is, that their is no address shown at this section. I can see that in the disassembly:

0000807c <.resetvec>:
807c:

I expect the start-address 803E after the 807c:. Should'nt it be like that?

Any suggestions?

over 2 years ago

0 David Schultz over 2 years ago

Guru 24385 points

That works for me.

Disassembly of section __reset_vector:

0000fffe <__reset_vector>:
    fffe:       00 48           interrupt service routine at 0x4800

0 Kurt Koch over 2 years ago in reply to David Schultz

Prodigy 40 points

So is it strange that my resetvec is at 807C and should it be at FFFE? I'm just confused.

0 David Schultz over 2 years ago in reply to Kurt Koch

Guru 24385 points

Check your linker script.

0 Kurt Koch over 2 years ago in reply to David Schultz

Prodigy 40 points

I did. It says that the "RESETVEC" is at origin: FFFE.

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MSP430FR6989: Usage of the reset vector in Assembler