Hello to all, has somebody already done a project in CCS-C using Roman Black4s 1.5-bit sound coding scheme?. I4m specially interested in how to read external (sound) memory via I2C or SPI and how to load and how to configure the timer interrupt service routine. Thanks for sharing your knowledge Thomas -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.