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DMAIV usage sample

KetanPatel
Prodigy 230 points

Hello,

I am using MSP430F24x1 controller and I need to configure DMA interrupt. These interrupts are not system interrupts so not sure how to map the DMA interrupts.

Is there any sample or help available on how to set the ISR routines after setting DMAIV register for channel 0.

Any help will be appreciated.

regards,

Ketan

  • 0
    Guru 58965 points

    Did you say you are using MSP430F24x1? There is no DMA in those chips.

    For chips that support DMA and have DMAIV, the bits in DMAIV are set by hardware. Read/write DMAIV automatically clears the hightes priority bit, All these are described in the users manual.

  • 0 in reply to old_cow_yellow
    Prodigy 230 points

    Bradon,

    Thanks for your suggestion. I was looking at the MSP430x2xx family user guide where it is mentioned but that is for other devices.

    It seems I need to perform my task with interrupts only as DMA is not available on 2491.

    I appreciate your help.

    regards,

    Ketan

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