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MSP430F47177: ADC interrupt & Hardware Multiplier Issue

Selec Controls1
Intellectual 280 points
Part Number: MSP430F47177
Other Parts Discussed in Thread: ADS131M08,

Hi All, 

We are using ADS131M08 AFE to measure voltage, current values, interfaced to MSP430F47177.

Earlier we did the same using in-built ADC of MSP430F47177. While using internal ADC, hardware multiplier was used. (ASM code for hardware multiplier exists in code)

We didn't change the code & used it for ADS131M08 part. Code executes upto the hardware multiplier part but then enters into NMI interrupt.

Any idea why this is happening.

Thanks & Regards  

  • 0
    TI__Intellectual 2585 points

    Hi, 

    I have no idea on your code fault issue. If the code is done with asm, it would be possible that you used a wrong address in your code. NMI interrupt usually caused by a wrong address fetching. Please be carefully on the code design and you cannot directly reuse an ASM code since the data source was changed. 

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