Can I do memory to memory DMA transfer in kinetis MCU using interrupt.

prakashpatel — Fri, 14 Feb 2014 16:19:53 GMT

Hi,

How can I do memory to memory DMA transfer using interrupt. May be in timer interrupt I would initiate the transfer.

Prakash

Re: Can I do memory to memory DMA transfer in kinetis MCU using interrupt.

Petr_H — Wed, 26 Feb 2014 12:02:39 GMT

Yes, if you mean triggering a DMA transfer by a timer or other interrupt flag event.

I recommend to use DMAChanne_LDD component. There is a property Hardware request that you can enable and select the source of event that triggers the transfer. For example FTM_C0_DMA_Request comes from channel 0 of the FTM0 timer.

If you select it, you also need to create a timer component that initializes the timer - you can do it for example with TimerUnit_LDD where you select FTM0, period and setup channel 0 where where you select offset and enable the DMA request in Interrupts/DMA.

Best regards

Petr Hradsky

Processor Expert Support Team

Processor Expert SoftwareのトピックCan I do memory to memory DMA transfer in kinetis MCU using interrupt.

Can I do memory to memory DMA transfer in kinetis MCU using interrupt.

Re: Can I do memory to memory DMA transfer in kinetis MCU using interrupt.