avdweb_SAMDpwmDAC
Fast PWM-DAC for the SAM15x15 and Arduino Zero http://www.avdweb.nl/arduino/hardware-interfacing/samd21-pwm-dac.html
Fast PWM-DAC for the SAM15x15 and Arduino Zero http://www.avdweb.nl/arduino/hardware-interfacing/samd21-pwm-dac.html