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