DMA triggering function Demo for LPC55xx From CTimer0_match0 event

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The document describes how to use DMA triggering mode to transfer data between memory and peripheral.

In detail, the CTimer0_match0 is configured to generate matching event with programmable period, the CTimer0 matching event triggers DMA, the DMA transfer data between a variable in memory and GPIO Toggling register(the GPIO is connected to a LED), so user can see the LED toggling. The DMA Ping-Pong modes are used, so user can observe different LED toggles.

The Example code is developed on SDK package, run on LPC55S69-EVK, the tools is MCUXpresso ver11.5.