Hi to all. Apparently, there is some discussion at the Arduino community regarding the lack of DMA support link<http://forum.arduino.cc/index.php?PHPSESSID=3aimas7f5mpkhlm8ortodpvg44&topic=132935.msg1001868#msg1001868>. One of the possible reasons is that the DMA is only available with the Arduino Due.There is one example, in the Audio library link <https://github.com/arduino/Arduino/blob/ide-1.5.x/libraries/Audio/src/Audio.cpp#L64>that uses the DMA for peripherals from Atmel (PDC). As an example of the interest, there is one implementation of DAC to DMA to USB for the Arduino DUE link <https://gist.github.com/pklaus/5921022>. In general, I consider that in the future, generating an efficient DMA class will allow entry users to get the performance benefits of DMA without noticing, and medium to highly skilled consumers with the ability to quickly use the memory transfer system without the effort of coding it from scratch, and well integrated to the runtime. But, as discussed this week, that is an step for future development. With Warm Regards, Ivan Raul