I'm looking at using a PIC18F452 to convert 8/16-bit PCM from NVSRAM to analog audio, with software doing the 1-bit D/A /oversampling part. Would anybody happen to know reference/sample code (assembly or C/C++) that shows how to implement a 1-bit DAC in software? Thanks, Ishaan -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.