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LPC54102 - Do the timers require interrupts to trigger DMA transfers, or a match with a chosen value is enough?

Question asked by Doinita Marcu on Sep 12, 2016
Latest reply on Oct 18, 2016 by James Massey

I am working with LPC54102 to transfer data from certain buffers to the GPIO outputs. 

The time is critical and I do not need interrupts each time a DMA transfer needs to be triggered.

Is it enough to program a timer (that can trigger a DMA channel) with a match value, and each time the TC will match that value a flag will trigger the DMA without interrupting (and going into the ISR in order to clear the interrupt)?


I would really appreciate your answer.


Thank you,