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MSP430F2618 - SPI with DMA?

martin.weissbach
Prodigy 20 points
Other Parts Discussed in Thread: MSP430F2618

Hello,

I googled for a while but didnt find any satisfying answer. Does anybody know if it is possible to use the MSP430F2618 for SPI operations with DMA?

If so...

a) Does anyone have a working example?

b) Do you know if this works for both Port 3 and Port 5 and  USCI_A and USCI_B?

I found an example for the  MSP430x54x but I'm not sure if this works also for the MSP430F26218.

 

Thank you very much!

 

  • 0
    Guru 227245 points

    The description of DMACTL0 for the 2xx series shows that you can trigger the DMA through UCA0TXIFG, UCA0RXIFG, UCA1RXIFG, UCA1TXIFG , UCB0RXIF and UCB0TXIFG. So for these three USCI modules, DMA with SPI will work, but not for USCIB1

    You cannot, however, directly use teh 54xx example as the programming of the DMA (especially the selection and meaning of the triggers, and the register names) is different.

     

  • 0 in reply to Jens-Michael Gross
    Prodigy 20 points

    Hey,

    thank you very much for your answer! I found the informations in the MSP430 2xx User's Guide (http://focus.ti.com/lit/ug/slau144e/slau144e.pdf) as you described it (page 6-20).

    Best regards,
    Martin

     

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