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How do I add an interrupt handler to my vector table in CCS6.1?

Otto Hunt
Expert 1475 points
Other Parts Discussed in Thread: MSP430F5529

I am using the ADC on the MSP430F5529 Launchpad. I am making use of the ADC interrupt function. I know that I need to edit, somehow, a linker file in my CCS project. Searching through example code and searching E2E posts did not answer this question - which should be common! Am I asking the right question? The example code I am using states:

//! This example uses the following interrupt handlers. To use this example
//! in your own application you must add these interrupt handlers to your
//! vector table.
//! - ADC12_A_VECTOR

Please advise.

  • 0
    Guru 92251 points

    Otto Hunt said:
    I know that I need to edit, somehow, a linker file in my CCS project.

    I don't believe you need to edit a linker file. The default CCS linker command files for a MSP430 will link any interrupt handler which is declared in source files in the project. Taking the example driverlib dc12_a_ex7_sequence example the source file defines an interrupt handler for the ADC12_VECTOR:

    #if defined(__TI_COMPILER_VERSION__) || defined(__IAR_SYSTEMS_ICC__)
#pragma vector=ADC12_VECTOR
__interrupt
#elif defined(__GNUC__)
__attribute__((interrupt(ADC12_VECTOR)))
#endif
void ADC12ISR(void)

    When the project has been compiled the linker map file shows the the ADC12 interrupt vector has been linked from the project source file:

    ADC12 0 0000ffec 00000002
     0000ffec 00000002 adc12_a_ex7_sequence.obj (.int54)

    Whereas other interrupt vectors which are not defined in project source files are shown in the linker map file to linked to stub interrupt handlers defined in the run time library:

    USCI_B0 0 0000ffee 00000002
     0000ffee 00000002 rts430x_lc_rd_eabi.lib : int55.obj (.int55)

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