Arduino ZERO sketches
adcdma.ino use DMA to read ADC
dacdma.ino use DMA to write DAC on TCC0 trigger
rng.ino generate entropy from dueling clocks, random numbers
mem2mem.ino DMA memcpy()
pwmDMAev.ino DMA controlled PWM, events to to timer capture DMA
SPIdma.ino SPI + DMA, 2 channels
IRtest/ demo IRremote transmit and receive
pwmwrite.ino demo of running high frequency PWM, hack of wiring_analog.c